基于调峰平衡约束的光伏发电穿透功率极限研究  

Research about photovoltaic power’s penetration limit based on the peak load balance constraint

作　　者：杨楠[1] 刘涤尘[1] 孙文涛[1] 赵洁[1] 董超[1] 王强[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《电力系统保护与控制》2013年第4期1-6,共6页Power System Protection and Control

基　　金：国家自然科学基金(51077103);武汉大学博士自主科研基金(274703)~~

摘　　要：光伏发电对其并入电网的调峰平衡带来的负面影响会反过来限制光伏发电的并网规模,研究计算光伏发电的穿透功率极限对其建设与规划具有重要意义。从电网的调峰平衡角度出发,提出了一种计算光伏发电穿透功率极限的方法。该方法利用bender’s解耦的思想将时间和发电机组合作为决策变量,以光伏发电的穿透功率极限为优化目标,提高了计算精度和效率。利用10机系统算例仿真,仿真结果表明,常规机组的出力特性、光伏发电的功率输出特性以及发电负荷特性是决定光伏发电穿透功率极限的重要因素。仿真结果验证了该方法的正确性和有效性。The photovoltaic power has negative impact on peak load balance of connecting power grid and this impact will in turn limit the size of the photovoltaic power connected into gird. So, the research of PV power＇s penetration limit based on a peak load balance constraint becomes an important topic for its construction and planning. This paper proposes a new method to calculate the PV power＇s penetrating limit from the perspective of the power balance. Utilizing bender＇s idea of decoupling, this method improves the accuracy and efficiency by using time and generator combination as decision variables, and PV power＇s penetrating limit as ultimate goal. 10-machine system is used to simulate. The simulation results show that the important factors to decide PV power＇s penetrating limit are the output characteristics of conventional units, the output characteristics of photovoltaic power and the load characteristics of power generation. The simulation results prove the correctness and effectiveness of the method. This work is supported by National Natural Science Foundation of China （No. 51077103）.

关 键 词：光伏发电 调峰平衡 穿透功率极限 bender’s解耦算法 

分 类 号：TM615[电气工程—电力系统及自动化]