Title :
Interconnection system with single phase IGBT PWM CSI between photovoltaic arrays and the utility line
Author :
Nonaka, Sakutaro ; Kesamaru, Katsumi ; Yamasaki, Kazuhiko ; Nishi, Masaki
Author_Institution :
Dept. of Electr. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
The single-phase utility interactive photovoltaic (PV) system, including the insulated-gate bipolar-transistor (IGBT) current-source pulse-width modulation (PWM) inverter with two auxilliary IGBTs is described. The system configuration, its operation, and experimental results which include steady-state characteristics with waveforms are presented. It is shown that the system can supply a utility with maximum power corresponding to the insolation with sinusoidal current waveforms at unity power factor. The modulation index and firing angle are fixed, and there is no need for feedback control. In case of emergency, the system can be instantaneously disconnected from the utility line by turning off all the main IGBTs. Simultaneously, the two auxiliary IGBTs are turned on to let the DC current circulate through these IGBTs, the PV array, and the DC reactor.<>
Keywords :
insulated gate bipolar transistors; invertors; photovoltaic power systems; power system interconnection; power transistors; pulse width modulation; solar cell arrays; DC current; IGBT PWM CSI; PV power systems; firing angle; inverter; modulation index; power lines; power system interconnection; power transistors; reactor; single phase; sinusoidal current waveforms; solar cell arrays; steady-state characteristics; unity power factor; utility; Feedback control; Insulated gate bipolar transistors; Insulation; Photovoltaic systems; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Reactive power; Solar power generation; Steady-state;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152353
