Title :
A multi-function photovoltaic power supply system with grid-connection and power factor correction features
Author :
Wu, T.-F. ; Chang, C.-H. ; Chen, Y.K.
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Taiwan
Abstract :
A conventional photovoltaic (PV) inverter system with grid-connection feature is usually composed of a full-bridge inverter and a microprocessor. The PV system is idle when there is no insolation (at nighttime). To optimize the use of the existing components, this paper proposes a multi-function PV power supply system with grid-connection, power factor correction and lamp-driving features. With the synchronous switch technique, pulse-width modulation, additional relays and components, an ordinary inverter system can function alternately as an electronic ballast with power factor correction at nighttime. Thus, the power switches, driving circuits and the microprocessor in such a multi-function system are optimally used. Computer simulation results and experimental measurements have verified the feasibility of the proposed system
Keywords :
PWM invertors; bridge circuits; lamp accessories; photovoltaic power systems; power factor correction; PV inverter system; computer simulation; driving circuits; electronic ballast; full-bridge inverter; grid-connection; lamp-driving features; microprocessor; multi-function PV power supply system; multi-function photovoltaic power supply system; photovoltaic inverter system; power factor correction; power switches; pulse-width modulation; relays; synchronous switch technique; Microprocessors; Photovoltaic systems; Power factor correction; Power supplies; Pulse inverters; Pulse modulation; Pulse width modulation inverters; Pulsed power supplies; Solar power generation; Switches;
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.2000.880479
