摘要
高比例新能源的接入使得电力系统的惯性降低,抗扰动能力变弱。鉴于同步电机在维持电网稳定中发挥的作用,提出了新能源通过驱动同步电动机-同步发电机对(MGP)后并网的新方式。通过介绍MGP的结构和运行原理,分析了MGP的惯性水平和阻尼特性。阐述了MGP功率反馈控制和电压反馈控制方法,并在5 kW实验系统中进行了验证。最后对MGP在高比例新能源电网中的应用场景及研究思路进行了展望。
A high proportion of renewable energy sources reduces the inertia of the power system and weakens the anti-disturbance ability.In view of the role of the synchronous motor in maintaining the stability of the power grid,a new renewable energy grid-connected mode,motor-generator pair(MGP),was proposed.The structure and working principle of MGP were introduced,the inertia and damping characteristics of MGP system were analyzed.Basis on power angle characteristic of MPG,power feedback control method and voltage feedback control method were proposed.The two control methods was verified in a 5 kWexperimental system.Finally,the application scenarios and research ideas ofMGP in high proportion new energy grid were prospected.
作者
武倩羽
黄永章
杨鑫
管飞
李渝
付文启
WU Qianyu;HUANG Yongzhang;YANG Xin;GUAN Fei;LI Yu;FU Wenqi(State Key Laboratory of New Energy Power System,North China Electric Power University,Beijing 102206,China;State Grid Xinjiang Electric Power Co.,Urumqi 830002,Xinjiang,China)
出处
《电气传动》
2022年第6期3-8,共6页
Electric Drive
基金
国家电网公司总部科技项目(XT71-18-041)。
关键词
高比例新能源电网
电力系统稳定性
同步电机
MGP特性
high proportion new energy grid
power system stability
synchronous motor
motor-generator pair(MGP)characteristics
