摘要
分析了三相光伏并网系统的主电路结构,提出了一种电流滞环跟踪控制的三相光伏并网系统。该系统具有稳定性好、电流跟踪性能好,响应快、不需要载波,能够实现功率因素为1的并网电流输出。在MATLAB环境下,开发了三相并网系统仿真模型,仿真结果验证了所提出控制方案的正确性。
On the basis of an analysis of the main circuit structure of the three-phase photovoltaic grid-connecting system,this paper puts forward three-phase photovoltaic grid-connecting system based on current hysteresis-band tracking control,which has advantages of good stability,good current tracking performance,fast response,no carrier and can obtain the united power factor of grid-connecting current.A three-phase grid-connecting system simulation model is developed in MATLAB environment and the simulation results have demonstrated the feasibility of the design.
出处
《电力建设》
2010年第9期14-17,共4页
Electric Power Construction
基金
湖北省科技攻关计划项目(2007AA101C69)
关键词
太阳能发电
光伏并网
电流滞环控制
建模
仿真
功率因素
solar power generation
photovoltaic grid-connecting system
current hysteresis-band control
modeling
simulation
power factor
