限功率下基于风电机组状态评价的风电场有功优化调度  

OPTIMAL SCHEDULING OF ACTIVE POWER FOR WIND FARMS BASED ON STATE EVALUATION OF WIND TURBINES UNDER POWER-LIMIT MODE

作　　者：魏赏赏 应夏融 高岩松 王伟[1] 许昌[1] 霍志红[1] Wei Shangshang;Ying Xiarong;Gao Yansong;Wang Wei;Xu Chang;Huo Zhihong(College of Renewable Energy,Hohai University,Changzhou 213200,China)

机构地区：[1]河海大学新能源学院,常州213200

出　　处：《太阳能学报》2024年第11期506-516,共11页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(52406233,U22B20112);中国博士后面上基金(2024M750738);中央高校基本科研业务费专项资金(423162)。

摘　　要：针对风电场限功率运行模式,提出一种基于风电机组状态评价的风电场有功优化调度方法,以较低的计算复杂度实现风电场的运行优化控制。首先,定义风电机组综合评分体系中的各项指标,并采用模糊熵值法计算机组的功率上调/下调综合劣化度进行排序。然后,根据发电状态对机组进行详细分类,并确定各类机组的功率调节能力。随后,基于风电机组分类和排序,实施风电场有功功率优化调度。最后,基于某风电场的历史数据进行仿真测试。结果表明:所提出的方法在风电场不同的限功率程度下均能实现较高的功率指令跟踪精度。同时,基于机组综合劣化度排序进行功率调度,可有效降低机组间的功率波动差异、载荷疲劳差异和整场功率波动。In view of the power-limit operation mode of wind farms,an optimal scheduling method of active power for wind farms based on state evaluation of wind turbines is proposed to achieve optimization control of wind farms with lower computational complexity.Firstly,various indicators in the comprehensive evaluation system of wind turbines are defined,and the deterioration degree of power increase/decrease for the turbines is calculated using the fuzzy entropy method for ranking.Subsequently,the turbines are classified in detail according to their generating states,and the power regulation capabilities of each turbine are determined.Then,based on the classification and ranking of wind turbines,optimal scheduling of active power for a wind farm is implemented.Finally,the proposed optimal scheduling method is simulated and tested based on historical data from a specific wind farm.The results show that the proposed method can achieve high accuracy for power command tracking under different power-limit degrees of wind farms.Meanwhile,the power scheduling based on the comprehensive deterioration degree of turbines can effectively reduce the variation of power fluctuation and load fatigue of turbines,as well as the overall power fluctuation of wind farms.

关 键 词：风电场 功率控制 调度算法 模糊熵值法 综合评分 机组状态分类 载荷疲劳 

分 类 号：TM614[电气工程—电力系统及自动化]