摘要
针对微型光伏并网逆变器体积小、效率高的要求,研究了反激式光伏并网微型逆变器的电路拓扑及其工作模态,加入了有源钳位吸收电路,并设计了一种功率解耦技术实现对直流侧功率波动的抑制。仿真与实验均搭建了1台额定功率为100 W,输入电压31 V,并网电压220 V/50 Hz的模型。仿真与实验结果表明,该微型逆变器可以可靠实现有源钳位技术,漏感能量吸收效果明显,功率解耦控制有效,达到预期目标。
For requirements of small size,high efficiency of photovoltaic(PV)grid-connected micro-inverters,studied a fly-back type of PV grid-connected micro-inverter circuit topology and its working modes. An active clampabsorption circuit was joined in. A kind of power decoupling technology of inhibition of dc power fluctuations wasdesigned. Simulation and experiment platforms were built. The rated power and input voltage were 100 W and 31 V.The grid voltage was 220 V/50 Hz. Simulation and experimental results show that the micro-inverter can reliablyrealize active clamp technique,the leakage inductance energy absorption effect is obvious,power decoupling controlis effective,and expected targets are achieved.
作者
安少亮
孙向东
翟莎
任碧莹
邱伟祥
AN Shaoliang;SUN Xiangdong;ZHAI Sha;REN Biying;QIU Weixiang(Electrical Engineering Department,Xi’an University of Technology,Xi’an 710048,Shaanxi,China;Power China Northwest Engineering Corporation Limited,Xi’an 710065,Shaanxi,China)
出处
《电气传动》
北大核心
2016年第7期34-38,共5页
Electric Drive
基金
国家自然科学基金(51507137
51577155)
陕西省重点学科建设基金(105-5X1201)
