摘要
随着新能源技术的快速发展,光伏并网发电以其独特的优越性成为太阳能开发利用的主流发展趋势。采用由直流电压外环和有功、无功电流内环组成的双闭环控制的方法,并对SPWM和SVPWM两种脉宽调制方式下的系统工作性能进行对比分析。依据所提的控制策略,研制一台17 kW的光伏逆变器样机。由得出的实验结果可见,所提控制方案能够有效控制逆变器输出电流波形。
With the rapid development of new energy technologies, PV grid connected generation becomes the main development trend of solar energy development and utilization with its unique superiority. Based on the principle analysis of the three-phase photovoltaic grid-connected inverter, double closed loop control strategy is proposed. And the two pulse width modulation （SPWM and SVPWM） are compared and analyzed. A prototype of 17 kW is used to make experiments based on the raised control strategy. And the experimental result shows that the designed control scheme can achieve a good control on the inverter output current waveform.
出处
《电子设计工程》
2013年第4期125-127,共3页
Electronic Design Engineering
