风火联合调度的风电场一次调频控制策略研究

发布时间：2018-07-10 06:10

本文选题：风电场 + 一次调频　；参考：《中国电机工程学报》2017年12期

【摘要】：随着风电在电力系统中渗透率的提高,电力系统单独依靠传统电源进行调频的能力被不断削弱,这就要求风电应具备配合传统电源参与系统频率调节的能力。首先,该文充分考虑风电调频响应速度快、火电调频持续时间久的特性,提出一种以火电机组调频为主、风电机组调频为辅的一次调频联合控制策略;其次,根据不同运行工况,提出改进的风机分组优化和功率分配策略,实现了风机有序参与/退出调频,有效规避了系统频率二次跌落问题;最后,改进风机转速恢复和转速保护模块,提高风电机组参与一次调频的安全性。仿真结果表明,所提策略能够有效实现风火联合参与一次调频,在保证经济性和可靠性的前提下,充分利用风电调频容量,有效改善系统频率特性。
[Abstract]:With the increase of the permeability of wind power in the power system, the ability of the power system to rely on the traditional power source for frequency modulation is continuously weakened, which requires the wind power to have the ability to cooperate with the traditional power supply to participate in the frequency regulation of the system. First of all, considering the characteristics of fast response speed of wind power and long duration of frequency modulation of thermal power, this paper puts forward a combined control strategy of primary frequency modulation, which is based on frequency modulation of thermal power unit and supplemented by frequency modulation of wind power unit. According to different operating conditions, an improved strategy of fan grouping optimization and power distribution is put forward to realize the fan's orderly participation / withdrawal from frequency modulation, which effectively avoids the problem of secondary frequency drop of the system. Improve the fan speed recovery and speed protection module, improve the safety of wind turbine participating in primary frequency modulation. The simulation results show that the proposed strategy can effectively realize the combined participation of wind and fire in primary frequency modulation, make full use of the FM capacity of wind power, and effectively improve the frequency characteristics of the system on the premise of economy and reliability.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);华北电力科学研究院有限责任公司;
【基金】：国家重点基础研究发展计划项目(973计划)(2012CB 215203) 中央高校基本科研业务费专项资金面上项目(2016MS31)~~
【分类号】：TM614;TM73

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