风光火打捆交直流混联外送系统交互影响及稳定性研究  

Study on Interaction and Stability Characteristics of Bundled Wind-PV-Thermal Power Transmitted With AC/DC System

作　　者：吴萍[1] 陈昊[1] 赵兵[1] 徐式蕴[1] 易俊[1] 张健[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2016年第7期1934-1942,共9页Power System Technology

摘　　要：风电或光伏与火电打捆通过交直流系统外送是我国大型新能源基地电力外送的重要途径。文章基于建立的风光火打捆交直流混联外送系统模型,研究了配套火电对直流、风电和光伏以及联网交流系统的影响机理。分析了直流运行异常对风电和光伏的影响,通过理论分析和仿真计算,研究了风电和光伏的脱网时序,定性并定量分析了新能源脱网对联网交流系统重要交流断面的影响。针对风光火打捆外送系统存在的问题提出了运行控制建议。Wind or PV power bundled with thermal power transmitted with AC/DC system is an important approach to delivery power for large renewable power bases. Model of bundled wind-PV-thermal power transmitted with AC/DC system was established. Effect of associated thermal generators on HVDC, wind-PV power and relative AC system was studied. Abnormal operation of DC would influence wind and PV power operation. Based on theoretical analysis and simulation calculation, tripping sequence of wind and PV powers was investigated. Impact of renewable power tripping on certain important sections of the AC system was analyzed qualitatively and quantitatively. Finally, some suggestions on operation and control of the bundled system were proposed.

关 键 词：风光火打捆外送系统 火电配比 脱网时序 交互影响 

分 类 号：TM72[电气工程—电力系统及自动化]