半月刊

ISSN 1000-1026

CN 32-1180/TP

+高级检索 English
基于事件驱动的机组快速频率响应控制方法
作者:
作者单位:

1.电网智能化调度与控制教育部重点实验室(山东大学),山东省济南市 250061;2.南瑞集团有限公司(国网电力科学研究院有限公司),江苏省南京市 211106;3.智能电网保护和运行控制国家重点实验室,江苏省南京市 211006

摘要:

针对大功率缺额事故下机组一次调频基于反馈控制动作存在滞后性的问题,提出了基于事件驱动的快速频率响应(EFFR)控制方法。首先,阐述EFFR概念的内涵,设计其体系架构及动作方案,利用特定的扰动事件信号触发紧急控制模式并快速调节机组出力。其次,基于扩展系统频率响应模型以周期性预决策的方式提取扰动功率及EFFR功率大小与低频减载动作间的耦合关系,估计预想事故场景下系统的EFFR需求功率。然后,以控制成本最小为目标优化分配EFFR需求功率,计算响应机组的控制指令。最后,通过算例分析验证了所提方法的有效性。

关键词:

基金项目:

国家重点研发计划资助项目(2017YFB0902600);国家电网公司科技项目(SGJS0000DKJS1700840)。

通信作者:

作者简介:


Event-driven Fast Frequency Response Control Method for Generator Unit
Author:
Affiliation:

1.Key Laboratory of Power System Intelligent Dispatch and Control, Ministry of Education (Shandong University), Jinan, 250061, China;2.NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, China;3.State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106, China

Abstract:

Aiming at the problem of hysteretic nature existed in the primary frequency regulation of the generator unit based on the feedback control law after large power deficits, an event-driven fast frequency response (EFFR) control method is proposed. First, the connotation of EFFR is elaborated, of which the system architecture and action scheme are designed. The specific disturbance event signals are used to trigger the emergency control mode and adjust the output of generator units promptly. Then, an extended system frequency response model is established to extract the coupling relationship among the disturbance power, EFFR power and the under-frequency load shedding action by the periodic pre-decision method, on which the required EFFR power of the system can be estimated in the expected accident scenario. Additionally, with the objective of minimizing the control cost, the required EFFR power is distributed optimally, and the control commands for response generator units are calculated. Finally, a case study is carried out to validate the effectiveness of the proposed method.

Keywords:

Foundation:
This work is supported by National Key R&D Program of China (No. 2017YFB0902600) and State Grid Corporation of China (No. SGJS0000DKJS1700840).
引用本文
[1]曹永吉,张恒旭,张怡,等.基于事件驱动的机组快速频率响应控制方法[J/OL].电力系统自动化,http://doi. org/10.7500/AEPS20210210001.
CAO Yongji, ZHANG Hengxu, ZHANG Yi, et al. Event-driven Fast Frequency Response Control Method for Generator Unit[J/OL]. Automation of Electric Power Systems, http://doi. org/10.7500/AEPS20210210001.
复制
分享
历史
  • 收稿日期:2021-02-10
  • 最后修改日期:2021-07-16
  • 录用日期:2021-06-15
  • 在线发布日期: 2021-07-23
  • 出版日期:
相关附件