Title :
Development of a current-sensorless multi-loop control for standalone PWM inverters
Author :
Yisheng, Yuan ; Chang, Liuchen ; Pinggang, Song
Author_Institution :
Dept. of Electr. Eng., East China Jiaotong Univ.
Abstract :
A current-sensorless multi-loop control method that estimates the capacitor current is proposed for standalone inverter applications. The theory of the control loop is given, and a mathematical model is analyzed. The effect of capacitor parameter mismatch on system characteristics was emphasized and discussed through modeling and simulation. Finally, experimental results comparing the characteristics of the output voltage under parameter mismatch conditions verified the operation and merits of the proposed controller.
Keywords :
PWM invertors; electric current control; capacitor current estimation; capacitor parameter mismatch effect; control loop; current sensorless multiloop control; standalone PWM inverters; standalone inverter application; Capacitors; Digital control; Mathematical model; Output feedback; Pi control; Power electronics; Proportional control; Pulse width modulation inverters; Sensorless control; Voltage control;
Conference_Titel :
Power Electronics, 2007. ICPE '07. 7th Internatonal Conference on
Conference_Location :
Daegu
Print_ISBN :
978-1-4244-1871-8
Electronic_ISBN :
978-1-4244-1872-5
DOI :
10.1109/ICPE.2007.4692458
