摘要
为了抑制单相单级光伏实验系统输出电流中的低频谐波成分,提出了一种基于比例谐振控制的新方法。通过改进控制器结构,能够有效避免控制器对参考电流中低频谐波信号的放大;比较了新型电流控制方法与标准电流控制方法频率域特性。分析表明,新型电流控制方法在抗谐波扰动方面具有更好的性能。最后,给出了新型电流控制器参数的一般设计步骤,并通过仿真和实验验证了电流控制方法的正确性和有效性。
To restrain low order harmonic component of output current for the single-phase PV system, a novel control strategy based on proportional resonant control is proposed. By modifying the structure of the controller, the proposed controller can avoid low order harmonic amplifying. Compared with traditional controller, the new current control strategy has good characteristics in restraining harmonic disturbance. Finally, general design steps for the new current controller are displayed, and the simulation and experimental results verify the correctness and effectiveness of the design.
出处
《实验技术与管理》
CAS
北大核心
2012年第12期39-43,共5页
Experimental Technology and Management
基金
国家自然科学基金项目(61104047)
湖南省自然科学基金项目(11JJ5035)
关键词
单相单级光伏系统
比例谐振控制器
控制器结构
优化设计
single-phase single stage photovoltaic system
proportion and resonant controller
controller structure
optimal design
