考虑安全约束的交直流配电网储能与换流站协调经济调度  

Security-constrained Coordinated Economic Dispatch of Energy Storage Systems and Converter Stations for AC/DC Distribution Networks

作　　者：王守相[1] 陈思佳[1] 谢颂果[2] 

机构地区：[1]天津大学智能电网教育部重点实验室,天津市300072 [2]国网天津市电力公司,天津市300010

出　　处：《电力系统自动化》2017年第11期85-91,共7页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51361135704;51377115)~~

摘　　要：直流配电网技术的发展,为分布式电源、储能的接入提供了更高效的方式,同时也使配电网呈现出交直流混合的拓扑形态。提出了基于安全约束的交直流混合配电网储能与换流站协调经济调度方法,通过优化换流站的无功调节与储能的充放电,一方面能确保配电系统安全运行,另一方面在输配分离的电力市场环境下可最小化供电公司从上级电网购电的成本。另外,交直流混合配电网经济调度模型属于混合整数非线性规划,缺乏快速有效的求解方法,通过线性化技术将原模型转化为能有效求解的混合整数线性规划问题。最后,通过算例测试验证了所提方法的效果及求解的快速性。With the rapid development of DC distribution technology, distributed generation （DG） and energy storage system （ESS） can be integrated with distribution networks more efficiently, and a hybrid AC/DC topology configuration may appear. This paper presents the security-constrained coordinated economical dispatch method of energy storage systems and converter stations for hybrid AC/DC distribution networks. By optimizing reactive power adjustment of the converter station and charging/discharging of ESS, power supply companies can ensure safe operation of distribution networks while minimizing the total cost of energy purchased from the upper grid on the transmission and distribution separated electricity market. In addition, this is a mixed integer nonlinear programming problem and is difficult to solve. In this paper, the original model is transformed into a mixed integer linear programming problem by linearization technique. Finally, the simulation results can demonstrate the effectiveness and rapidity of the proposed method.

关 键 词：交直流混合配电网 分布式电源 储能系统 经济调度 安全约束 电力市场 混合整数线性规划 

分 类 号：TM73[电气工程—电力系统及自动化]