Power feedward strategy of grid-connected inverter based on direct power decoupling
Take into account grid inverter that using direct power control is vulnerable to the disturbance of grid voltage,a control algorithm is proposed based on the relationship between the power and voltage,which is deduced according to the mathematic model of the inverter that using double-loop control strategy.The change amount of the output power of inverter is added to the reference of power closed-loop as power feedforward,which improves the dynamic response to the grid voltage change.Simulations with EMTDC/PSCAD are carried out and the comparison of output power response to grid voltage change between control with and without power feedforward verifies its effectiveness.
grid-connected inverter direct power control power feedforward dynamic response
FU Chunpeng ZHU Yongqiang
North China electric power university,Beijing102206,China
国际会议
武汉
英文
311-314
2013-06-15（万方平台首次上网日期，不代表论文的发表时间）