Title :
A PID Control Strategy for DC-link Boost Voltage in Z-source Inverter
Author :
Ding, Xinping ; Qian, Zhaoming ; Yang, Shuitao ; Cui, Bin ; Peng, Fangzheng
Author_Institution :
College of Electrical Engineering, Zhejiang University, Hangzhou, China, 310027
fDate :
Feb. 25 2007-March 1 2007
Abstract :
This paper presents a PID controller for dc-link boost voltage in Z-source inverter. With this technique a constant capacitor voltage can be achieved with an excellent transient performance which enhances the rejection of disturbance, including the input voltage ripple and load current variation, and have good ride-through for voltage-sags. The shoot-through duty cycle modulation strategy for control the dc-link boost voltage have been described in detail, which simplify the controller design and improve the transient response. The simulation and experimental results verified the validity of proposed control strategy.
Keywords :
Bridge circuits; Capacitors; Educational institutions; Inverters; Network topology; Power system stability; Three-term control; Transfer functions; Transient response; Voltage control; PID controller; Z-source inverter; buck-boost; shoot-through;
Conference_Titel :
Applied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-4244-0713-3
DOI :
10.1109/APEX.2007.357659
