A Direct Peak DC-link Boost Voltage Control Strategy 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

fYear

2007

fDate

Feb. 25 2007-March 1 2007

Firstpage

648

Lastpage

653

Abstract

A PID controller for direct peak dc-link boost voltage in Z-source inverter has been introduced. With this technique a high-performance inverter output 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 peak dc-link voltage direct sensing & scaling method, and modified modulation strategy have been described, which simplify the controller design, improve the transient response and decrease the voltage stress across the switches. The proposed technique was verified on a 10-kW prototype. The experimental results meet the simulation and analysis results very well.

Keywords

Capacitors; Circuits; Dynamic voltage scaling; Inverters; Stress; Switches; Three-term control; Transient response; Virtual colonoscopy; Voltage control; PID controller; Z-source inverter; buck-boost; shoot-through;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE

Conference_Location

Anaheim, CA, USA

ISSN

1048-2334

Print_ISBN

1-4244-0713-3

Type

conf

DOI

10.1109/APEX.2007.357583

Filename

4195787