Title :
Repetitive waveform correction technique for CVCF-SPWM inverters
Author :
Kai, Zhang ; Yong, Kang ; Xiong Jian ; Hui, Zhang ; Jian, Chen
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Hubei, China
Abstract :
A way to synthesize a repetitive controller directly with SPWM inverters is presented. It combines the advantages of repetitive control (low THD with nonlinear loads) and SPWM technique (easy implementation, low cost, reliable operation, etc). To cancel out the high resonant peak of the SPWM inverter, the repetitive controller incorporates a notch filter. Design of the controller is discussed in detail, and a case design is presented. Low THD (1.4%) is achieved with nonlinear load, this proves the method to be a cost-effective upgrading technique for SPWM inverter products
Keywords :
PWM invertors; control system synthesis; harmonic distortion; notch filters; power conversion harmonics; CVCF-SPWM inverters; SPWM inverter; cost-effective upgrading technique; high resonant peak; low THD; nonlinear load; nonlinear loads; notch filter; repetitive controller synthesis; repetitive waveform correction technique; Control system synthesis; Costs; Feedback control; Filters; Frequency; Hardware; Inductors; Pulse width modulation inverters; Resonance; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.878827
