单相光伏逆变器控制技术研究  

Research on Control Strategy of Single-Phase Photovoltaic Inverter

作　　者：周林[1] 张林强[1] 廖波[1] 龙崦平[1] 李怀花[1] 杜金其 

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市沙坪坝区400044

出　　处：《电网技术》2012年第9期25-30,共6页Power System Technology

基　　金：重庆市自然科学基金(cstcjjA90001)

摘　　要：为了解决准比例谐振(proportional-resonant,PR)控制器不能提供相角补偿的缺点,对准PR控制原理进行了分析,在准PR控制方法的基础上进行了改进,提出了准比例微分谐振(proportional-resonant differential,PRD)控制。在不改变原准PR控制特性的基础上弥补了准PR控制器不能补偿相角的缺点,通过分析比较得出:准PRD控制在稳定性和稳态误差2方面比传统比例微分积分控制和准PR响应效果优越。推导了准PRD控制参数的设计过程,仿真与实验结果表明,准PRD控制能有效减小动态响应时间,从而验证了准PRD控制方法的可行性及有效性。To remedy the defect that quasi-proportionalresonant（PR） controller could not provide phase angle compensation,the principle of quasi-PR control was analyzed,and based on PR control method an improved quasiproportional-resonant differential（PRD） control method was proposed,thus under the condition that without changing the control characteristic of original quasi-PR controller abovementioned defect could be remedied.Results of analysis and comparison showed that in both aspects of stability and steady state error the response effect of quasi-PRD control was better than response effects of traditional PID control and quasi-PR control.The parameter design process of PRD control method was derived.Results of simulation and experiments showed that PRD control method could effectively shorten the period of dynamic response,therefore the effectiveness and feasibility of the proposed PRD control method were verified.

关 键 词：光伏逆变器 比例积分微分控制 准比例谐振控制 准比例微分谐振控制 

分 类 号：TM464[电气工程—电器]