作者：席嫣娜, 王印松
作者单位：华北电力大学控制与计算机工程学院, 河北 保定 071003
关键词：双馈风电机组;火电机组;协调控制;系统频率
摘要：
该文提出一种双馈风电机组分布式协调频率控制方法，以改善系统频率响应特性。根据系统供需关系选择双馈风电机组运行模式，由所提分布式算法实现双馈风电机组减载水平的迭代更新，进而快速响应系统频率变化。所提分布式控制方法可协调不同风速条件下的双馈风电机组，并实现与火电机组间的协调控制，有效改善系统动态性能。最后，通过仿真分析对所提分布式协调频率控制方法的有效性进行验证。结果表明：该分布式协调频率控制方法可快速根据系统供需情况及时调节机组输出功率，有效改善系统频率响应特性。
Research on distributed coordinated frequency control method for DFIGs
XI Yanna, WANG Yinsong
School of Control and Computer Engineering, North China Electric Power University, Baoding 071003, China
Abstract: In order to enhance system frequency response characteristics, a distributed coordinated frequency control for doubly fed induction generators (DFIGs) is proposed in this paper. The operation mode of DFIGs can be determined by the system supply-demand balance. Moreover, the deloading levels are evaluated and updated by the proposed distributed algorithm, thus immediately reposing the change of system frequency. Second, the proposed distributed control method can coordinate the operations of different types of DFIGs. In addition, the coordination operation between DFIGs and thermal power units is achieved to improve the system dynamic performance. Finally, the effectiveness of the proposed distributed coordinated frequency control method is verified by simulation analysis. The results show that the proposed distributed coordinated frequency control method can quickly adjust the unit output power according to the supply and demand of the system, and effectively improve the frequency response characteristics of the system.
Keywords: DFIGs;thermal power unit;coordinated control;system frequency
2019, 45(1):128-133,156 收稿日期: 2018-09-06;收到修改稿日期: 2018-10-12
基金项目: 国家自然科学基金重点项目（61533013）；中央高校基本科研业务费专项资金项目（2017XS137）；国家建设高水平大学公派研究生项目（201706730013）
作者简介: 席嫣娜(1992-),女,甘肃平凉市人,博士研究生,研究方向为新能源机组协调控制及电力系统非线性控制等
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