Dɛn ne motor a ɛyɛ adwuma yiye?- Polinovel .

Motor a ɛyɛ adwuma yiye no susuw sɛnea anyinam ahoɔden mfiri bi dannan anyinam ahoɔden ma ɛyɛ mfiri ahoɔden yiye no ho. Mfiridwuma mu ahoɔden a ɛba ne anyinam ahoɔden a wɔde ba mu no nsusuwii taa fi 70% kosi 96%, a ahoɔden a wɔansakra no yera sɛ ɔhyew, akasakasa, ne akwan foforo.

Nnɛyi anyinam ahoɔden mfiri ma anyinam ahoɔden a wɔde di dwuma wɔ wiase nyinaa no bɛyɛ 45%, na ɛma nkɔso a ɛyɛ adwuma yiye no yɛ nea ɛho hia kɛse ma ɛka a wɔbɔ wɔ ɛka a wɔbɔ ne nneɛma a atwa yɛn ho ahyia nyinaa ho. anyinam ahoɔden kar a wɔde di dwuma hwehwɛ sɛ wɔyɛ adwuma kɛse mpo, baabi a .Lithium kar batere .Nhyehyɛeɛ yɛ adwuma wɔ tandem mu ne motors a ɛnya 90%+ efficiency wɔ adwumayɛ tebea dodoɔ no ara mu.

Basic efficiency calculation no kyekyɛ output power no mu denam input power so. Sɛ wopɛ motor drawing a 1,000 watts a anyinam ahoɔden na ɛde 850 watts mfiri tumi, efficiency yɛ pɛ 85%. Saa ratio a ɛyɛ tẽẽ yi kata nneɛma a ɛyɛ den kɛse so wɔ sɛnea nneɛma a wɔhwere no ba wɔ motor no nyinaa mu no mu.

Wobetumi abu ahoɔden a ɛyɛ adwuma yiye no ho akontaa tẽẽ denam tumi nsusuwii so anaasɛ wɔ ɔkwan a ɛnteɛ so denam susuw a wɔsusuw nneɛma a ɛyera so. Ɔkwan a ɛnteɛ no yɛ adehwere ahorow anum a ɛsono emu biara a wɔakyerɛ ase wɔ IEEE 112 Clause 5: stator losses, rotor losses, core losses, windage ne friction losses, ne adesoa a ɛyera a ɛyera. Ɛsono sɛnea emu biara gyina motor nhyehyɛe, adesoa tebea, ne ahoɔhare a wɔde yɛ adwuma so.

Motor dodow no ara nya peak efficiency ntam 50% ne 100% rated rated rated, a sweet spot no taa bɛyɛ 75% rated capacity. Motor a ɛwɔ ahoɔden a ɛwɔ apɔnkɔ 10 no yɛ adwuma yiye sen biara wɔ bɛyɛ apɔnkɔ ahoɔden 7.5 mu, ɛwom sɛ saa kwan yi gu ahorow wɔ motor no kɛse ne ne su mu de. Wɔ 50% adesoa ase no, adwumayɛ a ɛyɛ adwuma yiye no so tew kɛse, na ɛma motor sizing a ɛfata a ɛho hia kɛse ma ahoɔden a wɔkora so.

Motor Efficiency

Ahoɔden a wɔhwere no dan ɔhyew mmom sen sɛ ɛbɛyɛ adwuma a mfaso wɔ so. Sɛ yɛte baabi a saa adehwere yi ba no ase a, ɛma wotumi nya nkɔso wɔ adwumayɛ mu yiye.

Kɔbere a ɛyera (i2r hwere) .

Electrical resistance wɔ stator ne rotor windings mu no ma ɔhyew a ɛne current no ahinanan hyia. Sɛ moto fi kar bi ase a, motor betumi atwe amperes 500 afa windings mu a 40 millihms resistance, na ɛde kilowatts 10 ayera. Esiane sɛ ɛkame ayɛ sɛ shaft no dannan bere a wɔrefi ase no nti, sɛnea ɛyɛ adwuma yiye no bɛn zero ɛmfa ho sɛ wɔde ahoɔden di dwuma kɛse no. Saa kɔbere a ɛyera yi gyina hɔ ma ade biako a ɛyera ade kɛse wɔ mfiri dodow no ara mu, a ɛyɛ 55-60% wɔ nneɛma a wɔhwere nyinaa mu wɔ gyinapɛn nhyehyɛe mu.

Sɛ wɔde kɔbere di dwuma sen sɛ wɔde aluminum bedi dwuma wɔ windings mu a, ɛtew resistance so bɛyɛ 30%, ɛwom sɛ wɔ nneɛma ho ka kɛse mu de. Premium efficiency motors no kura kɔbere 25% sen standard models, de di kan bɔ ka bere tenten-bere mu ahoɔden a wɔkora so. Wɔ kar a anyinam ahoɔden wom a lithium kar batere ahorow na ɛma ɛyɛ adwuma no mu no, kɔbere a ɛyera no so tew tẽẽ ma karka no yɛ kɛse.

Core losses (dadeɛ a wɔahwere) .

Magnetic core no nya hysteresis ne eddy current losses bere a ne magnetic field no kɔ so sesa polarity no. Hysteresis a ɛyera no fi molecule friction bere a magnetic domains flip orientation ne AC cycle biara. Eddy currents no sen wɔ nsusuwso a ɛyɛ kurukuruwa mu fa dade a ɛwɔ laminated no mu, na ɛma ɔhyew a ɛne flux density ne frequency a ɛdannan no hyia.

High-Grade silicon dadeɛ a ɛwɔ laminations a ɛyɛ tratraa no ma mfiri mmienu no nyinaa so tew. Advanced motors de laminations 0.35mm thick anaa nea ennu saa di dwuma, sɛ wɔde toto 0.5mm wɔ standard designs mu a. Motor ahorow bi a wɔde sɔ nneɛma hwɛ no de nanocrystalline anaasɛ dade a ɛnyɛ nea ɛyɛ nwene di dwuma a ɛma nneɛma a wɔhwere no so tew 70%, na efi watt 1.4 wɔ kilogram biara mu kɔ 0.4 watts wɔ kilogram biara mu. Saa nneɛma a ɛyɛ nwonwa yi bo yɛ den kɛse na ɛde nsɛnnennen a ɛfa nneɛma a wɔyɛ ho ba nanso ɛma adwumayɛ tu mpɔn kɔ nsusuwii 99% a ɛwɔ soro no so.

Core losses da so ara yɛ nea ɛkɔ so daa a adesoa mfa ho, ɛnte sɛ kɔbere a ɛyera a ɛsono ne current squared no. Wɔ hann adesoa mu no, fixed core losses di so, na ɛkyerɛkyerɛ nea enti a motor efficiency no so tew ba fam sen 50% rated capacity.

Mfiridwuma mu nneɛma a ɛyera .

Bearing friction ne mframa a ɛko tia (mframa) di mfiri tumi. Friction losses scale linearly with speed, bere a windage nyin sɛ cube a ɛkyinkyini ahoɔhare so. Motor a ɛhwere watt 10 wɔ mframa a ɛbɔ wɔ 1,000 rpm mu no hwere watt 80 wɔ rpm 2,000, watt 640 wɔ 4,000 rpm, ne watt 5,120 wɔ 8,000 rpm.

Saa cubic abusuabɔ yi ma power ceiling a mfaso wɔ so ma motor speed. Mpɛn pii no, anyinam ahoɔden kar mfiri yɛ adwuma wɔ 10,000 kosi 18,000 rpm, ɛwom sɛ ebinom a ɛkorɔn-adwumayɛ ho nhyehyɛe ahorow no du rpm 20,000 de. Wɔ saa kwan yi akyi no, mframa a ɛbɔ a ɛyera no boro mfaso a wonya fi ahoɔden a ɛkɔ soro no so.

Low-Friction bearings ne pɛpɛɛpɛ a ɛkari pɛ ma mfiri a ɛyera no yɛ ketewaa. Premium motors nya tolerances a ɛyɛ den, ɛtew mframa mu nsonsonoe a ɛda rotor ne stator ntam no so fi 0.5mm a ɛtaa ba no so kosi 0.3mm anaa nea ennu saa. Saa bɛn a ɛbɛn yi ma magnetic coupling efficiency kɔ soro nanso ɛhwehwɛ sɛ wɔyɛ nneɛma a ɛyɛ pɛpɛɛpɛ a ɛkɔ akyiri.

Nneɛma a ɛyera a ɛyera .

Harmonic distortions, magnetic flux leakage, ne nneɛma afoforo a ɛto so abien no na ɛma wɔhwere ade. Eyinom taa gyina hɔ ma 10-15% wɔ adehwere nyinaa mu nanso ɛda adi sɛ ɛyɛ den sɛ wobebu akontaa pɛpɛɛpɛ. Nsakraeɛ frequency drives tumi ma stray losses kɔ soro denam harmonic generation so, ɛwom sɛ nnɛyi pulse-width modulation techniques no brɛ saa nkɛntɛnso yi ase.

Amanaman ntam gyinapɛn ahorow a ɛma wotumi yɛ adwuma yiye no boa ma wɔkyerɛ motor ahorow na wɔde toto ho. IEC 60034-30-1 gyinapɛn no kyerɛkyerɛ efficiency classes IE1 mu kɔsi IE4, a dodoɔ a ɛkorɔn kyerɛ adwumayɛ a ɛkorɔn. A proposed IE5 standard targets 20% lower losses sen IE4.

Standard Efficiency (IE1) .

Legacy designs a ɛdu ahwehwɛdeɛ a ɛsua koraa ho. Wɔayi IE1 motor dodow no ara afi hɔ nkakrankakra wɔ gua a anya nkɔso so esiane mmara a ɛfa sɛnea ɛyɛ adwuma yiye ho nti. Saa motors yi hwere 10-15% wɔ input tumi mu kɔ losses ahorow mu na ɛtaa yɛ adwuma titiriw nkutoo wɔ baabi a efficiency ho hia kɛse sen factors afoforo.

Nneɛma a ɛyɛ adwuma yiye (IE2) .

Nneɛma a wɔayɛ no yiye a wɔde nneɛma a eye ne abodwokyɛre a ɛyɛ den di dwuma. IE2 motors tew adehwere so bɛyɛ 15-20% sɛ wɔde toto IE1 a ɛne no sɛ ho a. Nanso, ɛsɛ sɛ nneɛma foforo a wɔde si Europa Aman Nkabom no mu no du IE3 gyinapɛn ahorow anaa nea ɛboro saa ho, na ɛma IE2 mfiri ho yɛ na kɛse wɔ mfiridwuma mu.

Premium a ɛyɛ adwuma yiye (IE3) .

Mprempren gyinapɛn a wɔde di dwuma wɔ mfiridwuma mu dodow no ara mu wɔ aman a wɔanya nkɔso mu. IE3 motors no de kɔbere 20-25% pii ka ho wɔ windings mu, fa anyinam ahoɔden dade a ɛkorɔn di dwuma, na ɛwɔ magnetic circuit nhyehyɛe a wɔayɛ no yiye. Nneɛma a wɔhwere nyinaa taa kɔ fam 20-30% sen IE2 motor ahorow a ɛyɛ pɛ.

EU mmara hwehwɛ sɛ wɔde mfiri a ɛwɔ 0.75kW ne 375kW ntam nyinaa di IE3 gyinapɛn ahorow ho dwuma ansa na afe 2021. Wɔtrɛw gyinapɛn no mu kɔɔ 1,000kW na mprempren ɛka ATEX-Mfiri a wɔde di dwuma, breki motor, ne onwini ho nhyehyɛe pɔtee bi ho. IE3 Compliance gyina hɔ ma ahoɔden a wɔde gyina hɔ ma nneɛma a ɛwɔ hɔ-afiri a wɔde hwɛ nneɛma so.

Super premium a ɛyɛ adwuma yiye (IE4) .

Nsusuwii a ɛkɔ akyiri a ɛrebɛn anohyeto ahorow a mfaso wɔ so a ɛwɔ mfiri a wɔde yɛ adwuma a wɔtaa de di dwuma mu. IE4 motors no nya bɛyɛ 15-20% a ɛba fam sen IE3 a ɛne no sɛ. Nneɛma a wɔyɛ no hwehwɛ nneɛma a ɛyɛ fɛ, nhyiam a wɔyɛ no pɛpɛɛpɛ, ne mpɛn pii no honam fam nsusuwii akɛse a ɛbɛma kɔbere ne dade titiriw foforo atumi ayɛ adwuma.

EU mmara hyɛ sɛ wɔmfa IE4 di dwuma ma abiɛsa foforo-Phase, 2-6 Pole, Single-Speed Motors Rated 75-200kW, Effective July 2023. Eyi nya nkɛntɛnso a ɛnyɛ{8}}explosion-protected installations and most general-purps motorps so nkɛntɛnso. Nsakraeɛ a ɛkɔ IE4 no gyina hɔ ma nkɔsoɔ 20% wɔ IE3 adwumayɛ so.

Ultra Premium Efficiency (IE5) ne nea ɛboro saa .

WEG nnansa yi ara de W23 Sync+Ultra Motor a ɛyɛ IE6 adwumayɛ ne nea ɛboro saa no sii hɔ. Saa motors yi kyerɛ sɛ 20% losses no so tew sen IE5 gyinapɛn ahorow, a ɛbubu fa kan adwumayɛ akwanside ahorow mu. Technology no de rare-Asase daa magnets, cooling a ɛkɔ anim, ne electromagnetic designs a wɔayɛ no yiye di dwuma nanso ɛba wɔ premium cost so.

Motor Efficiency

Adwumayɛ tebea horow nya ankasa-Wiase no ahoɔden so nkɛntɛnso kɛse, mpɛn pii no ɛboro din a wɔde kyerɛw nsɛm ho nkyerɛkyerɛmu so.

Adesoa tebea .

Motors yɛ adwuma yiye sen biara a ɛbɛn 75% wɔ rated rated mu. Nea ɛboro adesoa a wɔakyerɛ so no, mfiri betumi atra ase bere tiaa bi esiane ɔsom mu nneɛma nti (mpɛn pii no 1.15x), nanso sɛnea ɛyɛ adwuma yiye ne ne nkwa nna nyinaa so tew. Lower 50% load, efficiency drops to steeply sɛ fixed losses te sɛ core losses ne windage di ɔha biara mu nkyem kɛse wɔ ahoɔden nyinaa mu.

Nhwehwɛmu bi a ɛhwehwɛɛ anyinam ahoɔden mfiri 48 mu no hui sɛ sɛ wɔkyekyem pɛpɛɛpɛ a, sɛnea ɛyɛ adwuma yiye ankasa no gu ahorow kɛse a egyina mmeae a wɔyɛ adwuma so. Motors pii a ɛwɔ industrial settings mu no tu mmirika wɔ loads fã bi a efficiency so tew 10-20 percentage points a ɛba fam sen rated specifications. Motor ahorow a ɛwɔ nifa so kɔ adesoa ankasa a wɔhwehwɛ no taa ma wonya ahoɔden a wɔkora so kɛse sen sɛ wɔbɛma mfiri a wɔde yɛ adwuma yiye no ayɛ kɛse.

Supply voltage ne frequency .

Voltage nsakrae nya adwumayɛ so nkɛntɛnso denam wɔn nkɛntɛnso wɔ magnetizing current ne core losses so. Motors a wɔayɛ ama 460V adwumayɛ nanso wɔde ama ne 440V Twe current foforo na ama torque akɔ so, na ɛma kɔbere a ɛyera no kɔ soro. Nea ɛne no bɔ abira no, voltage a ɛboro so no ma core losses no kɔ soro denam flux density a ɛkorɔn so.

Frequency nsakrae ho hia kɛse wɔ ahoɔhare a ɛsakra mu. Mpɛn dodow a ɛba fam no ma core losses so tew nanso ebetumi ama kɔbere a ɛyera no ayɛ kɛse sɛ motor controller compensation no nyɛ pɛ a. Nnɛyi vector control drives optimize saa tradeoff yi, akura efficiency a ɛkorɔn wɔ ahoɔhare a ɛtrɛw mu.

Ɔhyew mu nsunsuanso .

Widing resistance no kɔ soro bɛyɛ 0.4% wɔ celsius biara mu. Motor a ɛyɛ adwuma wɔ 50℃a ɛboro ɔhyew a wɔakyerɛ sɛ ɛwɔ hɔ no so no nya kɔbere a ɛyera 20%. Onwini a etu mpɔn ma ɛyɛ adwuma yiye na ɛtrɛw motor nkwa mu denam insulation a ɛsɛe a esiw ano no so.

Nneɛma a ɛma onwini a ɛkɔ akyiri no tetew mu yɛ no akuw a ɛnyɛ adwuma ne nea ɛyɛ adwuma. Amammerɛ motor ahorow de abɔnten jacket a ɛma onwini di dwuma, na ɛma ɔhyew kɔ so-ɛma nneɛma a ɛma ɛyɛ nwini no fi onwini mu. Direct oil cooling for high-performance electric vehicle motors ma kwan ma wɔyi ɔhyew firi windings, stator, ne rotor mu, ɛboa sustained high-power adwumayɛ bere a ɛkura ɔhyew a ɛyɛ papa a ɛba fam sen 180℃.

Electric kar drivetrains nya 75-90% nyinaa efficiency fi battery kosi ntwahonan, sɛ wɔde toto 20-35% ma emu combustion engine. Wɔ EV powertrains mu no, motor no gyina hɔ ma adehwere fibea biako a ɛso sen biara, na ɛma ɛyɛ botae titiriw ma ahoɔden a wɔde yɛ adwuma yiye.

Lithium Car Battery Systems de coulometric efficiency ma boro 99%, a ɛkyerɛ sɛ ɛkame ayɛ sɛ ahoɔden a wɔkora so bere a wɔde charge no nyinaa bɛba bere a wɔretu no. Saa adwumayɛ a ɛyɛ nwonwa yi de nhyɛso ba drivetrain afã afoforo so ma ɛne gyinapɛn ahorow yi hyia. Motor a ɛyɛ adwuma wɔ 94% ahoɔden mu no ankasa sɛe ahoɔden pii sen battery, inverter, ne transmission a wɔaka abom.

Adwumayɛ kwan a wɔfa so yɛ adwuma yiye .

Ɛsɛ sɛ EV mfiri ahorow no yɛ adwuma yiye wɔ tebea horow a ɛsono emu biara kɛse mu. Kurow no mu karka hwehwɛ sɛ wɔtaa yɛ ntɛmntɛm fi gyinabea wɔ baabi a adwumayɛ a etu mpɔn no so tew kɛse esiane anyinam ahoɔden a ɛkɔ soro ne ahoɔhare a ɛba fam nti. Highway cruising hwehwɛ torque a ɛkɔ fam wɔ ahoɔhare a ɛyɛ mmerɛw mu wɔ baabi a motor ahorow no nya ahoɔden a ɛsen biara. Aggressive acceleration hwehwɛ torque a ɛsen biara, a ɛpia mfiri kɔ mmeae a nneɛma a wɔhwere no kɔ soro kɛse no.

Multi-Speed transmissions boa ma motors kɔ so wɔ wɔn efficiency sweet spot mu. Bere a EV dodow no ara de single-ahoɔden a wɔde tew gearbox ahorow so di dwuma no, kar ahorow a ɛyɛ fɛ a efi Porsche, Audi, ne afoforo de abien-ntɛm di dwuma. Bosch hyɛ transmission a ɛkɔ so sakra (CVT4EV) ho nkuran a ɛkyerɛ sɛ 4% yɛ adwuma yiye wɔ kar a ɛyɛ hare a wɔde di gua mu. Ɛnyɛ den sɛ 97-98% a ɛyɛ adwuma yiye wɔ gear keteke mu no boro nneɛma a ɛyera wɔ mfiri a wɔde di dwuma wɔ ahoɔhare a ɛnyɛ papa mu no so.

breki a ɛma nipadua no san yɛ foforo .

Sɛ mfiri no brɛ ase a, mfiri yɛ adwuma sɛ mfiri a ɛma anyinam ahoɔden, na ɛma ahoɔden a ɛma anyinam ahoɔden no san yɛ anyinam ahoɔden. Lithium kar batere no twetwe ahoɔden a wɔasan ayɛ yi yiye, na ɛtrɛw kar no mu 10-30% a egyina sɛnea wɔka kar no so. Kurow no mu karka a ɛtaa gyina hɔ no ma ahoɔden pii nya ahoɔden sen ɔkwan kɛse so a wɔde tu kwan no.

Motor efficiency wɔ regeneration bere mu no ho hia te sɛ motoring efficiency. Magnet motor ahorow a ɛtra hɔ daa no di mu wɔ ha, efisɛ magnetic field no wɔ hɔ a enhia sɛ wɔde kanyan nsu. Ɛsɛ sɛ induction motors no kɔ so ma magnetizing current kɔ so yɛ adwuma bere a wɔresan ayɛ foforo no mpo, na ɛtew ahoɔden a wɔde yɛ adwuma no so.

Nsusuwii ho akwan horow pii brɛ nneɛma a wɔhwere ase na ɛma adwumayɛ yɛ yiye, a emu biara fa adwumayɛ, ɛka, ne nneɛma a wɔyɛ no ntam.

Nneɛma a wɔahyɛ no den .

Rare{}}Asase so magnet a ɛtra hɔ daa te sɛ neodymium-iron-boron yɛ magnetic fields a ɛyɛ den a ne nne nyɛ den pii, na ɛma motor ahorow a ɛyɛ ketewaa, a ahoɔden wom tumi yɛ adwuma. Nanso, nneɛma yi a wotu fagude ne nea wɔyɛ no yiye no ma wɔbɔ nneɛma a atwa yɛn ho ahyia ho ka kɛse. Nneɛma a wɔde yiyi nneɛma mu no de efĩ kɛse ba, na asase so amammuisɛm ho dadwen atwa ho ahyia-asase so nneɛma a wɔde ma a wɔde ahyɛ aman kakraa bi mu.

Kɔbere rotor bars mmom sen aluminum tew rotor resistance so 20-40%, ɛwom sɛ nsɛnnennen da so ara wɔ hɔ. Die-cast kɔbere hwehwɛ ɔhyew a ɛkɔ soro a ebetumi asɛe rotor lamination insulation, counteracting efficiency gains. Kɔbere afiri a wɔayɛ a wɔde robɔt asisi so no ma wonya ɔkwan foforo a wɔfa so yɛ mfiri akɛse a ɛboro apɔnkɔ ahoɔden 250.

Higher-grade electrical steel anaasɛ laminations a ɛyɛ tratraa no ma core losses no so tew. Sɛ yɛtu firi standard M19 dadeɛ so kɔ premium low-Nneɛma a ɛyera so a, ɛma hysteresis a ɛyera no so tew 30-50%. Nanocrystalline ne amorphous dadeɛ pia eyi kɔ akyiri nanso ne bo yɛ den kɛse na ɛde fabrication nsɛnnennen no kyerɛ.

Geometry a wɔayɛ no yiye .

Mframa a ɛda rotor ne stator ntam no so tew ma magnetic coupling tu mpɔn. Nnɛyi pɛpɛɛpɛyɛ a wɔyɛ no ma nsonsonoeɛ yɛ ketewa te sɛ 0.3mm sɛ wɔde toto abakɔsɛm 0.5-0.8mm gyinapɛn ho a. Nanso, nsonsonoe a emu yɛ den no ma ɛka a wɔbɔ wɔ nneɛma a wɔyɛ ho no yɛ kɛse na ɛtew abodwokyɛre a wonya wɔ bearing wear anaa thermal expansion ho no so.

Nneɛma a ɛyɛ adwuma a ɛkɔ soro (kɔbere a ɛwɔ windings, dade a ɛwɔ core mu) no ma nneɛma a wɔhwere no so tew tẽẽ denam mprempren density ne flux density a ɛba fam so. Premium efficiency motors taa kura 20-25% a ɛyɛ adwuma sen standard designs. Nea enye wɔ ho no fa ne kɛse, ne mu duru, ne nneɛma ho ka a ɛkɔ soro ho.

Stack tenten a ɛware no ma windings pii a ɛwɔ resistance a ɛba fam wɔ phase biara mu. A typical premium motor de 20% stack tenten ka ho sɛ wɔde toto standard efficiency equivalents ho a. Saa kwan yi yɛ adwuma kosi sɛ honam fam nsusuwii bɛboro baabi a wɔde besisi anaasɛ ɛbɛma nneɛma a wɔyɛ no mu nsɛnnennen aba.

Onwini a ɛkɔ akyiri .

Ɔhyew a woyi fi hɔ yiye no ma mfiri ahorow tumi di ahoɔden a ɛkɔ soro ho dwuma bere a ɛma ɔhyew a ɛwɔ adwumayɛ mu a ahobammɔ wom no kɔ so yɛ adwuma no. Amammerɛ mframa a ɛma onwini no dɔɔso ma tumi a ɛba fam nanso ɛbɛyɛ nea ɛfata ma-adwumayɛ ho nhyehyɛe a ɛkorɔn.

Nsu jacket a ɛyɛ nwini atwa motor dan no ho ahyia denam coolant channels so. Ɔhyew no fa motor no mu kɔ coolant no mu, na ɛma ɔhyew a ahobammɔ wom no kɔ so yɛ nea nsu ne anyinam ahoɔden afã horow no ntumi nkɔ mu tẽẽ. Saa kwan yi yɛ adwuma yiye nanso ɛma ɔhyew a ɛkɔ soro fi windings so kɔ abɔnten so.

Direct oil cooling di dielectric oil ho dwuma fa motor no mu, na ɛne windings, stator, ne rotor di nkitaho tẽẽ. Ɔhyew a ɛkɔ so no yɛ adwuma yiye, na ɛma ahoɔden a ɛkɔ so yɛ kɛse na ɛma adwumayɛ tu mpɔn denam ɔhyew a ɛba fam a wɔde yɛ adwuma so. Ɔkwan a wɔfa so yɛ no hwehwɛ sɛ wɔyɛ motor ahorow a wɔakata so ne nhyehyɛe a wɔde hwɛ ngo so, na ɛde nsɛm a ɛyɛ den ne ɛka a wɔbɔ ka ho.

Oil spray cooling targets specific hot spots bere a ɛrebrɛ ngo dodow ase. Strategic nozzles kyerɛ onwini a ɛma onwini kwan wɔ winding awiei-dan ne afoforo a ɛkorɔn-temperature regions. Sɛ wɔde mfiridwuma mu nneɛma a wɔde siw ano a wɔatu mpɔn aka ho a, ngo a wɔde yɛ nwini no abɛyɛ nea mfaso wɔ so ma kar a wɔde di dwuma wɔ baabi a ne kɛse yɛ ketewaa ne ahoɔden a ɛkorɔn ma ɛyɛ den foforo.

Premium efficiency motors no bo yɛ 15-40% sen standard equivalents nanso ɛkora ahoɔden so wɔ wɔn adwumayɛ nkwa nyinaa mu. Boɔ a wɔtɔ no gyina hɔ ma bɛyɛ 2% wɔ nkwa nna nyinaa mu, a 98% a aka no firi anyinam ahoɔden a wɔde di dwuma no mu.

10-horsepower motor a ɛretu mmirika bere nyinaa wɔ $0.10 kilowatt-hour biara sɛe ne bo a wɔtɔ nyinaa wɔ anyinam ahoɔden so wɔ bɛyɛ ɔsram biako mu. Wɔ mfe 15 nkwa nna a wɔtaa de di dwuma no mu no, ahoɔden a wɔde yɛ adwuma no ma sika a wɔde hyɛ mu mfiase no yɛ ketewaa bi. Nkɔso a ɛba wɔ adwumayɛ mu a ɛnyɛ kɛse mpo ma wɔkora sika kɛse so.

Sɛ wobu akatua ho akontaa a, ɛsɛ sɛ wobu afe afe nnɔnhwerew a wɔde yɛ adwuma, sɛ wɔkyekyem pɛpɛɛpɛ a, adesoa a wɔde yɛ adwuma, ne anyinam ahoɔden a ɛwɔ mpɔtam hɔ no ho akontaa. Facility a ɛyɛ adwuma wɔ motors so nnɔnhwerew 4,000 afe biara wɔ United States ( nnɔnhwerew 8 da biara, nnafua 5 dapɛn biara) no taa hu bere a wɔde tua ka a ɛyɛ mfe 2-4 bere a wɔde yɛ adwuma fi IE2 kosi IE3 a ɛyɛ adwuma yiye no. Sɛ wɔde di dwuma kɛse a, ɛtew bere a wɔde tua ho ka so sɛnea ɛfata.

Ahoɔden-Motor gua a ɛnyɛ adwuma yiye no duu dɔla ɔpepepem 59.1 wɔ afe 2024 mu na nnwuma a wɔyɛe koduu dɔla ɔpepepem 151 wɔ afe 2034 mu, na ɛkɔɔ soro koduu 9.8% afe biara. Saa nkɔso yi da mmara kwan so ahyɛde ahorow, ahoɔden ho ka a ɛkɔ soro, ne nneɛma a atwa yɛn ho ahyia ho nimdeɛ a ɛkɔ soro adi. Nnwumayɛbea ahorow hyia nhyɛso a ɛbɛma wɔatew mframa bɔne a ɛwɔ mframa bɔne mu so bere a wɔredi adwumayɛ ho ka so no, na ɛma tumi a wɔde yɛ adwuma no yɛ adwuma yiye no yɛ sikasɛm ne nneɛma a atwa yɛn ho ahyia ho ahyɛde abien.

Efficiety susudua a ɛyɛ pɛpɛɛpɛ hwehwɛ sɛ wɔhwɛ anyinam ahoɔden a wɔde ba ne mfiri a wɔde yɛ adwuma no so bere koro mu. Electrical Power akontabuo ma voltage, current, ne power factor ma abiɛsa-phase motors no yɛ kɛse. Mfiridwuma mu tumi fi torque ne rotational speed susuw mu.

Rotary torque sensor ahorow a ɛwɔ encoder ahorow a wɔaka abom no ma tumi a wɔde susu no yɛ pɛpɛɛpɛ. Saa sensor ahorow yi kɔ soro wɔ motor ne load ntam, susuw shaft torque bere a ɛhwɛ ahoɔhare so. Nnɛyi data a wonya nhyehyɛe ahorow no kyere susudua abien no nyinaa bere koro mu, na wobu ankasa-bere a ɛyɛ adwuma yiye.

Sɔhwɛ gyinapɛn te sɛ IEEE 112 ne IEC 60034-2-1 kyerɛ akwan pɔtee bi ase hwɛ hu sɛ wobetumi asan ayɛ no mpɛn pii, a wɔde toto ho. Saa gyinapɛn ahorow yi bu ɔhyew nkɛntɛnso ho akontaa, ɛkyerɛ mfiridwuma mu pɛpɛɛpɛyɛ ahwehwɛde ahorow, na ɛkyerɛkyerɛ akwan a wɔfa so bu akontaa a ɛfa nneɛma ahorow a ɛyera ho no mu kɔ akyiri. Wɔn a wɔyɛ nneɛma no de sɔhwɛ ahorow a wɔahyɛ da ayɛ yi di dwuma de di motor no ho adanse.

Field sɔhwɛ de nsɛnnennen ba. Motor ahorow a ɛyɛ adwuma wɔ mmeae a wɔyɛ nneɛma no nya adesoa ahorow a ɛsonosonoe, nneɛma a wɔde ma no mu nsakrae, ne nneɛma a atwa yɛn ho ahyia tebea horow a ɛsono wɔ aduruyɛdan mu sɔhwɛ ahorow mu. Portable power analyzers ne clamp-wɔ torque sensor ahorow so no ma wotumi susuw afuw mu, ɛwom sɛ ɛso tew pɛpɛɛpɛ bere a wɔde toto afiri a wɔde yɛ nhwehwɛmu ho no.

Adwumayɛ ho nsɛm pii brɛ adwumayɛ ase yiye sen nhyehyɛe anohyeto ahorow.

Motor sizing a ɛmfata .

Motor ahorow a ɛsõ dodo no yɛ adwuma wɔ nneɛma a emu yɛ hare so wɔ baabi a sɛnea wɔyɛ adwuma yiye no hu amane. Adeyɛ a wɔtaa yɛ a ɛne sɛ wɔde ahobammɔ ho nsɛm bɛka ho wɔ nhyehyɛe fã biara mu no ma ɔhaw no yɛ kɛse. Adeyɛ a ɛhia apɔnkɔ ahoɔden 7 no bɛtumi de 10hp motor a ɛwɔ 1.15 service factor adi dwuma, nokwarem no, ɛbɛma 11.5hp tumi. Adwumayɛ wɔ 60% a wɔakyerɛ sɛ adesoa no sɛe ahoɔden.

Variable frequency drives no fã bi brɛ asɛm yi ase denam ahoɔhare a wɔsakra no ma ɛne adesoa a wɔhwehwɛ no hyia so. Nnɛyi kar ahorow no kura adwumayɛ a ntease wom a ɛfata wɔ mmeae a ɛtrɛw a wɔyɛ adwuma no mu, ɛwom sɛ ɛde wɔn ankasa adehwere ba de. Right-Sizing wɔ mfitiaseɛ nkyerɛkyerɛmu mu no da no adi sɛ ɛtu mpɔn sene sɛ wobɛbɔ mmɔden sɛ wobɛtua adwumayɛ so ka.

Tumi a ɛnyɛ papa .

voltage a ɛnkari pɛ, harmonic distortion, ne nea ɛma ntwitwiridii nyinaa sɛe adwumayɛ yiye. 2-3% voltage a ɛnkari pɛ mpo betumi atew adwumayɛ so ɔha biara mu nkyem 1-2 bere a ɛma ɔhyew a ɛkɔ soro no kɔ soro no. Tumi a ɛwɔ adwumayɛbea no gyinabea ho dwuma a wodi ho dwuma no nya nnwinnade a ɛka bom nyinaa so mfaso.

Harmonic filters, isolation transformers, ne power factor correction mfiri ma nneɛma a wɔde ma no yɛ papa. Nsakraeɛ frequency drives tumi ma harmonics a ɛka nnwinnadeɛ foforɔ, ɛma drive-side filtering ho hia wɔ facilities a VFDs pii wɔ mu.

Nsiesiei a ɛnyɛ papa .

Sɛ woso srade, ahotew a ɛyɛ kurukuruwa, ne mfiri a ɛne ne ho hyia a, ne nyinaa nya adwumayɛ so nkɛntɛnso. Srade a ɛmfata a wɔde gu so no ma friction losses no yɛ kɛse bere a ɛreyɛ ntɛmntɛm no. Nea ɛboro-Lubrication ne ase-Lubrication so no nyinaa de ɔhaw ahorow ba, na ɛma nsiesie nhyehyɛe a ɛfata ho hia.

Motor rewinding, sɛ wɔanyɛ no yiye a, sɛe adwumayɛ yiye ɔha biara mu nkyem 1-5. Sɛ woyi windings dedaw no fi hɔ a, ebetumi asɛe core laminations, na ama core losses no ayɛ kɛse. Suboptimal wire routing anaasɛ compaction a ɛnnɔɔso no ma kɔbere a ɛyera no yɛ kɛse. Quality motor repair shops di nneyɛe pa a ɛkɔ so yɛ adwuma yiye a ɛbɛn mfitiase nkyerɛkyerɛmu no akyi.

Motor Efficiency

Nhwehwɛmu kɔ so piapia adwumayɛ yiye ahye bere a ɛredi ɛka ne nneɛma a ɛbɛkɔ so atra hɔ daa ho haw ahorow ho dwuma no.

Nneɛma foforo a wɔde besi ananmu .

Magnets a ɛho yɛ na-a wɔtew so anaasɛ woyi fi hɔ no di nneɛma a atwa yɛn ho ahyia ne nneɛma a wɔde ma ho haw nyinaa ho dwuma. Ferrite magnet ahorow no ma wonya akwan foforo a ne bo yɛ mmerɛw a ɛwɔ magnetic ahoɔden a ɛba fam, a ɛhwehwɛ sɛ wɔde anifere kwan so nhyehyɛe yɛ yiye na ama magnet motor adwumayɛ a ɛtra hɔ daa no ahyia. Synchronous reluctance motors yi magnet ahorow no fi hɔ koraa, na wɔde magnetic ntwitwiridii di dwuma ma ɛyɛ adwuma.

Aluminium windings san kɔ nsusuwii mu bere a kɔbere ho ka sakra no. Nnɛyi nhyehyɛe ahorow tua aluminium ahoɔden a ɛkorɔn no so ka denam conductor volume a ɛkɔ soro ne optimized geometry so. Sɛ wɔde toto kɔbere ho a 70% no ma aluminium yɛ fɛ ɛmfa ho sɛ ɛyɛ adwuma yiye no.

Ahoɔhare a ɛkɔ soro wɔ adwumayɛ mu .

Motor RPM a ɛkɔ soro fi 10,000-18,000 a wɔtaa de di dwuma no mu kɔ 20,000-40,000 no ma ahoɔden a ɛwɔ mu no yɛ kɛse a nneɛma kakraa bi na ɛwɔ mu. Nanso, mframa a ɛbɔ a ɛyera no kɔ soro wɔ cubially bere a ɛde ahoɔhare ba no, na ɛma ɛyɛ ɔdan atifi a mfaso wɔ so. Ebia mframa a wɔde yɛ adwuma a ɛkɔ akyiri, bearing a wɔatu mpɔn, ne nneɛma a ɛyɛ nwonwa no bɛma saa hye yi akɔ soro.

High-Speed motors hwehwɛ sɛ ɛlɛtrɔnik control matching shaft speed, hwehwɛ sɛ ɛlɛtrɔnik ahoɔden a ɛsesa ntɛmntɛm. Silicon carbide semiconductors ma frequency adwumayɛ a ɛkorɔn sen silicon IGBTs, a ɛboa su a ɛkɔ motor ahoɔhare a ɛkɔ soro no so.

DriveTrain nhyehyɛe a wɔaka abom .

DriveTrain nhyehyɛe a edi mũ no a wobɛma ayɛ yiye no taa de aba pa ba sen sɛ wobɛma nneɛma a ɛwɔ mu no ayɛ papa. Wɔ anyinam ahoɔden kar mu no, motor controller algorithms a ɛne Lithium kar batere sohwɛ ne kar ahoɔden sohwɛ hyia no ma ɛyɛ adwuma yiye wɔ ne nyinaa mu. Torque modulation techniques sesa zero ne optimal torque values, sidestepping regions a ɛnyɛ adwuma yiye wɔ hann adesoa mu.

Dual-Motor configurations wɔ ne nyinaa mu{1}}twɛre-Drive kar ahorow ma kwan ma ahoɔden mu mpaapaemu, a ɛyɛ adwuma wɔ motor biara mu wɔ ne range a etu mpɔn bere a ɛkura total power output. Adesua kyerɛ sɛ torque modulation mfaso da adi kɛse wɔ abien-motor nhyehyɛe mu sɛ wɔde toto single-motor architectures ho a.

Mfiridwuma mu mfiri a ɛdu IE3 gyinapɛn ho no taa nya ahoɔden 85-96% wɔ adesoa a wɔahyɛ da ayɛ mu, a mfiri akɛse a ɛdu adwuma a ɛkɔ soro no yɛ adwuma yiye. Motor nketewa a ɛwɔ apɔnkɔ ahoɔden 1 mu no betumi ayɛ adwuma wɔ 70-85%, bere a mfiridwuma mu mfiri akɛse a ɛboro apɔnkɔ ahoɔden 100 betumi aboro 96%. Electric Vehicle Motors a wɔayɛ no yiye ama kar dwumadie no taa nya 90-95% ahoɔden wɔ wɔn adwumayɛ mu.

Sɛ wɔma nneɛma kɔ yiye fi gyinapɛn a wɔde di dwuma yiye so kosi mfiri a wɔde yɛ adwuma yiye so a, ɛtew nneɛma a wɔhwere so 20-30%. Ebia mfiri a ɛwɔ ahoɔden a ɛyɛ apɔnkɔ 50 a ɛyɛ adwuma nnɔnhwerew 4,000 afe biara no bɛma wɔakora kilowatt-hours 3,000-5,000 so afe biara, a ne bo yɛ dɔla 300-500 wɔ anyinam ahoɔden a wɔde yɛ adwuma wɔ mfiridwuma mu no mu. Wɔ mmeae akɛse a mfiri ɔhaha pii wɔ hɔ no, sika a wɔde sie a wɔaka abom no du dɔla du du anaa ɔhaha pii afe biara.

Battery chemistry nya kar no nyinaa a ɛyɛ adwuma yiye so nkɛntɛnso nanso ɛnyɛ motor no yiye tẽẽ. Nanso, lithium-ion batere de 99%+ coulometric efficiency ma, a ɛkyerɛ sɛ motor efficiency bɛyɛ ade titiriw a ɛyera wɔ nnɛyi EV drivetrains mu. Ɛsɛ sɛ motor no ne battery no adwumayɛ hyia na amma anyɛ yiye. Bio nso, battery voltage ne discharge su nya motor controller no adwumayɛ so nkɛntɛnso, indirectly influenceing motor efficiency denam supply power quality so.

Nkɔso kakraa bi na ebetumi aba sɛ wɔmfa motor nsi ananmu. Hwɛ a wɔbɛhwɛ sɛ wɔbɛsra no yiye, wɔbɛkura alignment mu, na wɔama tumi no ayɛ papa aboa nanso mpɛn pii no ɛma wonya 1-3% pɛ wɔ adwumayɛ mu. Sɛnea ɛbɛyɛ a wobenya nkɔso kɛse no, sɛ wɔde premium efficiency motors si ananmu a, ɛma wonya ɔkwan a wotumi de ho to so sen biara. Variable frequency drives wɔ motors a ɛwɔ adesoa ahorow so no betumi ama nhyehyɛe no ayɛ adwuma yiye sɛ motor no yɛ adwuma yiye mpo a, ɛnsakra.

Sɛ wopaw motor a ɛfata a, nea ɛka ho ne sɛ wobɛkari pɛ wɔ adwumayɛ mu, ɛho ka, nea wopɛ sɛ wode di dwuma, ne nneɛma a wode bɛyɛ adwuma. Wo load profile pɔtee, duty cycle, ne operating environment a wobɛte ase no ma wotumi si gyinae a ɛfata.

Premium efficiency motors ma wɔn ka a ɛkɔ soro wɔ mfiridwuma mu dwumadie dodoɔ no ara mu no yɛ nea ɛfata a wɔde di dwuma wɔ ɔkwan a ɛfata so. Nnwumayɛbea a ɛyɛ adwuma wɔ mfiri a wɔde di dwuma so no taa hu akatua wɔ mfe 3- mu afe biara. Nnwuma a ɛkorɔn a wɔde di dwuma a ɛyɛ adwuma bere tenten anaasɛ ahoɔden a wɔde yɛ adwuma no ho ka a ɛkɔ soro no nya mfaso ntɛmntɛm mpo.

Wɔ anyinam ahoɔden kar a wɔde di dwuma ho no, motor a ɛyɛ adwuma yiye no kyerɛ ase tẽẽ kɔ karka mu. Ɔha biara mu nkyekyɛmu biara a ɛma adwumayɛ tu mpɔn no de akwansin a ɛfiri lithium kar batere tumi koro no ara ka ho. Eyi ma premium designs a ɛwɔ cooling, optimized materials, ne sophisticated control systems a ɛkɔ akyiri wɔ sikasɛm mu ɛmfa ho sɛ ɛho ka kɔ soro kɛse no.

Mmara a wodi so no hyɛ sɛ wɔnyɛ adwuma yiye a ɛba fam koraa. Gyinapɛn a ɛwɔ hɔ mprempren ne nea ɛreba no ho ntease boa ma wɔkwati sɛ wɔbɛtɔ mfiri a ne bere atwam ansa na wɔn abɔde mu asetra kwan no aba awiei. Su a ɛrekɔ IE4 ne IE5 gyinapɛn ahorow so no kɔ so, a IE6-level motor ahorow no hyɛn adwumayɛ mu dedaw fi wɔn a wɔyɛ nneɛma a wɔagye din no hɔ.

Motor a ɛyɛ adwuma yiye no gyina hɔ ma nneɛma a atwa yɛn ho ahyia ho asɛyɛde ne sikasɛm mu nkɔso a ɛyɛ papa ntam nkitahodi a ɛho hia. Bere a anyinam ahoɔden ho ka kɔ soro na nneɛma a atwa yɛn ho ahyia ho mmara yɛ den no, adwumayɛ ho asɛm a ɛfa mfiri a ɛyɛ adwuma yiye ho no mu yɛ den kɛse. Mfiridwuma no kɔ so nya nkɔso, a nneɛma ho nyansahu, nneɛma a wɔyɛ no pɛpɛɛpɛ, ne nhyehyɛe a wɔde di dwuma a ne nyinaa boa ma wɔpia ahoɔden ano hye kɔ soro bere a wɔredi nneɛma a ɛkɔ so daa ho haw ahorow ho dwuma wɔ nneɛma a wɔde ma no nyinaa mu no.