Silicon Mobility, a provider of digital controls for EV powertrains, says its control system improves inverter and motor efficiency by 2% to 4.6% compared to the industry-standard SVPWM control technique.
During the 34th International EV Symposium, Silicon Mobility and Cascadia Motion presented their latest research results, in which Optimized Pulse Pattern (OPP) modulation increased the efficiency of the inverter and the permanent magnet synchronous motor (PMSM) by reducing switching losses in the inverter and copper/iron losses in the motor.
The OPP algorithm was implemented using Silicon Mobility’s OLEA T222 field-programmable control unit. The resulting system efficiency was measured on a high-voltage bench using a modified Cascadia Motion PM100 IGBT-based inverter and a BorgWarner HVH250 production motor. The system efficiency was compared with industry-standard SVPWM modulation using comparable Field-Oriented Control (FOC) on 8 operating points representing real-world driving loads.
The patented solution centers on the dedicated architecture of the OLEA FPCU (Field Programmable Control Unit). Using programmable hardware acceleration for time-critical control loops, depending on the motor’s operating conditions, the OLEA FPCU may apply different types of modulation techniques to provide the optimal modulation for the targeted set point.
In addition to Space Vector PWM (SVPWM), the FPCU supports the flexible implementation of generic Angle-based Pulse Control (APC) modulations. One example is Optimized Pulse Patterns (OPP), a modulation technique relying on a set of precisely applied switching (pulse) patterns that are pre-computed offline to optimize the system behavior of the motor and inverter. Its main purpose is to shape the harmonic signature of the control current in order to reduce iron and copper losses depending on the motor operating conditions.
“The results from this work indicate a compelling improvement in motor and inverter efficiency. It makes an IGBT-based inverter more competitive with a SiC inverter, without the added cost,” said Cascadia Motion Director of Advanced Engineering Larry Rinehart.
“The OPP modulation is supporting the same targets as adjacent work on new power transistor technologies (GaN, SiC), advanced inverter system architecture (multi-stage, multi-level), and advanced torque, current, and magnetic flux control strategies as Model Predictive Control or AI-based control,” said Silicon Mobility VP Khaled Douzane.
Source: Silicon Mobility
purchase lasuna generic – himcolin for sale purchase himcolin for sale
Your writing style makes complex topics seem simple. Thanks!
buy cheap generic besifloxacin – order besifloxacin eye drops buy sildamax pills
order benemid generic – buy etodolac 600mg generic how to buy carbamazepine
buy gabapentin 800mg generic – order generic neurontin 100mg azulfidine 500 mg cheap
colospa 135 mg usa – order etoricoxib 60mg sale order pletal 100 mg sale
celebrex 200mg oral – indomethacin 75mg canada purchase indocin generic
rumalaya sale – where to buy shallaki without a prescription amitriptyline 50mg usa
voveran order online – cheap nimotop generic buy cheap generic nimodipine
buy mestinon online cheap – buy generic imitrex online buy azathioprine for sale
brand lioresal – piroxicam 20mg cost oral piroxicam
buy generic artane – emulgel order online where can i buy diclofenac gel
purchase cyproheptadine generic – buy cyproheptadine 4mg online cheap tizanidine
purchase accutane online – buy isotretinoin 20mg pill deltasone 10mg usa
buy omnicef generic – cleocin for sale clindamycin drug
acticin cheap – benzac cream order retin gel for sale
deltasone 40mg cheap – omnacortil drug order elimite
flagyl tablet – order flagyl 200mg pills order cenforce 50mg generic
cost betnovate – buy differin no prescription purchase benoquin without prescription
cheap cleocin 150mg – indocin 75mg for sale indocin 50mg canada
augmentin for sale – cost clavulanate order levothroid without prescription
purchase eurax for sale – bactroban ointment uk aczone uk
order cozaar 25mg pill – order generic cephalexin order cephalexin 500mg pills
purchase zyban generic – ayurslim usa order shuddha guggulu pill
provigil 100mg generic – modafinil pills purchase melatonin online cheap
where can i buy prometrium – buy fertomid no prescription cheap fertomid tablets
generic capecitabine – how to buy capecitabine order danocrine 100 mg for sale
buy cheap generic aygestin – buy generic yasmin purchase yasmin pills
cabergoline order – premarin canada alesse for sale online
buy yasmin online cheap – buy ginette 35 arimidex cheap
バイアグラ гЃЉгЃ™гЃ™г‚Ѓ – г‚·гѓ«гѓ‡гѓЉгѓ•г‚Јгѓ« е‰ЇдЅњз”Ё г‚їгѓЂгѓ©гѓ•г‚Јгѓ«йЂљиІ©