標題: Voltage Source Inverter Drive Using Error-compensated Pulse Width Modulation
作者: Chen, Keng-Yuan
Hu, Jwu-Sheng
Lin, Jau-Nan
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Digital signal;Motor drive;Pulse-width modulation (PWM);Space-vector PWM;Voltage-source inverter
公開日期: 1-一月-2016
摘要: An error-compensated pulse width modulator (ECPWM) is proposed to improve the baseband harmonic performance and the switching loss of voltage source inverters (VSIs). Selecting between harmonic distortion and switching loss is a design tradeoff in the conventional space vector pulse width modulation. In this work, an accumulated difference in produced and desired phase voltages is considered to adjust the reference signal. This mechanism can compensate for the voltage error in the previous carrier period. With error compensation every half-carrier period, the proposed ECPWM allows one-half reduction in carrier frequency without scarifying baseband harmonic distortion. The proposed modulator is applied to a three-phase VSI with R-L load and a motor-speed-control system for experiments. The measured efficiency and operating temperature of switches confirm the effectiveness of the proposed scheme.
URI: http://dx.doi.org/10.6113/JPE.2016.16.1.388
http://hdl.handle.net/11536/129701
ISSN: 1598-2092
DOI: 10.6113/JPE.2016.16.1.388
期刊: JOURNAL OF POWER ELECTRONICS
Volume: 16
起始頁: 388
結束頁: 397
顯示於類別:期刊論文