基于VSG的微网逆变器控制策略研究  

Research on Micro-gird Inverter Control Strategy Based on Virtual Synchronous Generator

作　　者：张鑫[1,2] 陈优阔 郭英海 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008 [2]兖矿东华建设有限公司,山东邹城273500

出　　处：《控制工程》2017年第S1期69-74,共6页Control Engineering of China

摘　　要：作为提高微电网安全性的一种重要手段,虚拟同步发电机(VSG)技术越来越受到人们的重视。通过分析VSG原理,设计一种新型微网逆变器控制策略,建立VSG模型,利用其转子运动方程和无功调节的延迟特性,从而设计了一种工作频率调节器的新方案,分析了主要控制参数对系统的稳定性的响应。实验表明,该方法性能良好,保号性强且稳态动态性能好,在该控制策略下可以稳定并网。As an important means to enhance the reliability of the micro grid, the virtual synchronous generator has become a research hotspot in recent years. Through the analysis of the principle of the virtual synchronous generator, a new type of micro inverter control strategy is designed, the virtual synchronous generator model is established, using the synchronous generator rotor movement equations, frequency modulation characteristics and delay characteristics of the reactive power regulation, the upper piconet inverter control is constructed, the work frequency regulator is designed, the dynamic response of the main control parameters to the stability of the system is analyzed. PSCAD simulation experiments show that this control strategy of the micro inverter synchronous generator has good characteristics, can be stably connected to the grid, and can well meet the requirements for the operation of the micro grid.

关 键 词：微电网 虚拟同步发电机 控制参数分析 模型 功频控制 

分 类 号：TM464[电气工程—电器]