上海大学学报(英文版)
上海大學學報(英文版)
상해대학학보(영문판)
JOURNAL OF SHANGHAL UNIVERSITY
2008年
6期
554-559
,共6页
吴春华%陈国呈%崔开涌%陈卫民%肖鹏%张翼
吳春華%陳國呈%崔開湧%陳衛民%肖鵬%張翼
오춘화%진국정%최개용%진위민%초붕%장익
grid-connected%current-source%inverter%immittance converter
A novel topology of the current-source grid-connected inverter is proposed based on the immittance converter theory. A control strategy of sine-sine pulse width modulation (PWM) is studied. Compared with the traditional current-source inverter, the power frequency inductors and power frequency transformer are replaced with high frequency inductors and a high frequency transformer. Thus, the proposed inverter has advantages of small volume, low cost, low total harmonic distortion (THD), low power losses, high power factor (PF) and simple control. Furthermore, grid voltage cannot influence output current of the grid-eonnected inverter and the current-source inverter with a high PF that approaches one has been realized. Finally, validity of the theory analysis and feasibility of the control scheme are shown by simulation and experimental results.
