电机与控制应用2016，Vol.43Issue(5)：7-11,5.
基于单周期控制的LCL并网逆变器控制策略研究∗
A Control Strategy of Grid-Connected Inverter with LCL Filter Based on One-Cycle Control
摘要
Abstract
A digital one-cycle control (OCC) technology was adopted to improve the control performance of grid-connected inverter with LCL filter which could inhabit the input disturbance of voltage source and improve the system dynamic response. The dual closed-loop feedback control was implemented with the inner loop of capacitor current and the outer loop of grid-tied current. Moreover, an OCC bipolar control algorithm was analyzed and designed to modulate the duty cycle signals of the inverter switches from the inner loop output signals. Proportional (P) control at the feedback channel of the inner loop and Proportional-integral (PI) control at the forward channel of the outer loop were adopted in proposed system. The principle was analyzed mathematically that a trap filter formed by capacitor current feedback restrained LCL resonance and the parameters of filters and controllers was designed. On the basis of MATLAB/Simulink platform, a model of grid-connected inverter with LCL filter was established and the results of simulation were analyzed to verify feasibility of the strategy.关键词
单周期控制/并网逆变器/LCL滤波器/双闭环控制/有源阻尼法Key words
one-cycle control ( OCC)/grid-connected inverter/LCL filter/dual loop control/active damping method分类
信息技术与安全科学引用本文复制引用
杨旭红,何超杰..基于单周期控制的LCL并网逆变器控制策略研究∗[J].电机与控制应用,2016,43(5):7-11,5.基金项目
国家自然科学基金项目(61203224) （61203224）
上海市电站自动化技术重点实验室开放课题(13DZ2273800) （13DZ2273800）
上海市科技创新行动技术高新技术领域重点项目(14511101200) （14511101200）
上海市重点科技攻关计划(上海市科委地方院校能力建设项目)(14110500700) （上海市科委地方院校能力建设项目）
上海自然科学基金项目(13ZR1417800) （13ZR1417800）
