Title :
A bidirectional inverter with high frequency isolated transformer
Author :
Ramli, M.Z. ; Salam, Z. ; Toh, L.S. ; Nge, C.L.
Author_Institution :
Dept. of Energy Conservation, Univ. Technol. Malaysia, Johor Bahru, Malaysia
Abstract :
There is a growing interest to develop renewable energy, particularly the solar energy to meet the growing energy demand. In this paper, a bidirectional photovoltaic (PV) inverter using high frequency (HF) transformer is proposed. The HF transformer provides electrical isolation between the DC supply and AC output. Besides, by using minimum power switches at the active rectifier on the secondary side of HF transformer, the system has low switching losses. Therefore, the proposed inverter has advantages of reliable, lightweight, low cost and increased efficiency. A prototype inverter is implemented using a low cost microcontroller and laboratory experiments are carried out to verify the system viability.
Keywords :
PWM invertors; high-frequency transformers; invertors; microcontrollers; photovoltaic power systems; DC supply; PV inverter; bidirectional inverter; electrical isolation; high frequency isolated transformer; microcontroller; photovoltaic; power electronics; power switches; pulse width modulation; renewable energy; solar energy; switching losses; Costs; Frequency; Hafnium; Inverters; Photovoltaic systems; Rectifiers; Renewable energy resources; Solar energy; Solar power generation; Switching loss;
Conference_Titel :
Power Engineering Conference, 2003. PECon 2003. Proceedings. National
Print_ISBN :
0-7803-8208-0
DOI :
10.1109/PECON.2003.1437421