Browse Publications Technical Papers 2019-01-0602
2019-04-02

Study of Adjustable Discontinuous Pulse Width Modulation (ADPWM) Based on Switching Transient Inverter Loss Algorithm 2019-01-0602

In order to improve the electric vehicle endurance mileage and output characteristics of motor, the optimization of inverter loss and motor current ripple reduction are considered. Aiming at high inverter loss of traditional SVPWM and high current ripple of DPWM, an adjustable discontinuous pulse width modulation(ADPWM) is proposed, whose clamping angle α and clamping phase angle θ are variable. In order to accurately calculate the inverter loss, a switching instantaneous inverter loss model is proposed, and the ADPWM inverter loss and current total harmonic distortion(THD) was studied based on Simulink modeling and simulation. The simulation and experiment results show that the experiment can be accurately reflected by Simulink model; The inverter loss can be reduced by 15%-25% by introducing ADPWM while the current distortion rate is low. With the clamping angle α increasing, the inverter loss decreased significantly. The inverter loss and motor output characteristics are effectively balanced, with setting α ranging from 40° to 55° in high speed and low load condition or setting α =55° in high speed full load condition. When α is a constant, the motor current characteristics are improved and inverter loss is reduced by the appropriate advanced clamping phase angle(-15°<θ<-5°). The continuous variable seamless conversion between different PWM methods can be realized by ADPWM.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:
TECHNICAL PAPER

Optimization for Power System of Electric Vehicle Based on CPSO

2019-01-0364

View Details

TECHNICAL PAPER

A Library of Simulink Blocks for Real-Time Control of HEV Traction Drives

2002-01-1934

View Details

TECHNICAL PAPER

4WID/4WIS Electric Vehicle Modeling and Simulation of Special Conditions

2011-01-2158

View Details

X