Digital voltage control for DC energy storage unit of dynamic voltage restorer

Author

Li, Peng ; Tang, Jinfei ; Wang, Changzhu ; Liu, Xuanxuan ; Wang, Yan

Author_Institution

North China Electr. Power Univ., Shijiazhuang

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

1781

Lastpage

1785

Abstract

The working principle of active power factor correction (APFC) technology is expounded. To eliminate harmonics and reactive current during the charging process of DC energy storage unit of the dynamic voltage restorer (DVR), leading APFC technology into the voltage control of DC energy storage unit of dynamic voltage restorer, the digital voltage control algorithm for DC energy storage unit of DVR is proposed and the design approach for voltage controller and current controller is given. Simulation results show that by use of APFC technology the harmonics and reactive current in charging current of DVR can be actively eliminated and both voltage stability and dynamic response of DC energy storage unit can be improved.

Keywords

digital control; energy storage; power factor correction; voltage control; voltage regulators; APFC technology; DC energy storage unit; DVR; active power factor correction; current controller; digital voltage control; dynamic voltage restorer; voltage controller; Circuits; Digital control; Energy storage; Power factor correction; Power system harmonics; Pulse width modulation; Reactive power; Sampling methods; Switches; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2007. ICEMS. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-86510-07-2

Electronic_ISBN

978-89-86510-07-2

Type

conf

Filename

4412094