基于非线性内点法的双馈风电场功率优化分配控制策略  

Optimal power dispatch and control of wind farm based on nonlinear interior point algorithm

作　　者：赵斌[1,2] 王明渝[1] 李辉[1] 杨超[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [2]四川电力职业技术学院,四川成都610072

出　　处：《电力系统保护与控制》2012年第13期24-30,共7页Power System Protection and Control

基　　金：国家自然科学基金资助项目(50607022);输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512710101);中央高校基本科研业务费资助项目(CDJXS10151152)~~

摘　　要：大容量风电场接入电网运行,会对系统的安全稳定性和经济性产生影响,因此从电网自身角度出发要求风电场出力可控,即根据电网调度要求调整风电场的有功功率、无功功率输出。提出了一种基于非线性优化的风电场功率分配控制策略,该策略以风电场功率输出偏差最小和风电场内损耗最小的多目标的优化模型为基础,考虑各台机组有功、无功输出限制及节点电压限制,利用非线性原-对偶路径跟踪内点算法进行求解。给出了具体的计算步骤,并以10机双馈风电机组风电场为例,通过不同调度出力要求算例仿真分析,验证了该控制策略在风电场功率控制方面的有效性,以及在提高风电场运行效率方面较传统控制策略的优越性。Integration of large-scale wind power may have severe impacts on the economy and safety of power system, so the wind farm must control its output （active and reactive power） according to power system requirerntents. Therefore, an optimal power dispatch and control strategy of wind farm based on non-linear optimization is proposed. The non-linear primal-dual path tracking interior point algorithm is used to solve such multi-objective optimization model, which is provided to minimize the wind power output deviation and losses in wind farm, complying with the restriction of turbine output and bus voltage. Calculation steps are given And a wind park with 10 double-fed wind turbines is used as an example to be simulated at different dispatch power requests, and the result shows that the control strategy proposed in this paper is effective and has better performance than the traditional control strategy.

关 键 词：风电场 功率控制 优化控制 非线性内点算法 

分 类 号：TM614[电气工程—电力系统及自动化]