引用本文:于汀,蒲天骄,刘广一,等.电网AGC与AVC协调控制方法[J].电力系统保护与控制,2015,43(15):42-47.
YU Ting,PU Tianjiao,LIU Guangyi,et al.Coordinated control method of AGC and AVC in power grid[J].Power System Protection and Control,2015,43(15):42-47
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电网AGC与AVC协调控制方法
于汀1,2, 蒲天骄2, 刘广一2, 李时光2, 赵聪3, 田爱忠4
1.四川大学电气信息学院，四川 成都 610065;2.中国电力科学研究院，北京 100192;3.智能电网教育部重点 实验室(天津大学)，天津 300072;4.新能源电力系统国家重点实验室(华北电力大学)，北京 102206
摘要:
电力系统有功功率与无功功率耦合日益紧密，自动发电控制(AGC)与自动电压控制(AVC)相互解耦的模式会影响电网的运行控制效果。基于AGC与AVC不同的控制周期，在时间尺度上建立了分钟层和秒层两级衔接的AGC与AVC协调控制模式，提出了控制方法。在分钟层级上，建立有功功率与无功功率联合的最优潮流模型，提出AGC与AVC的联合优化控制方法；在秒层级上，完善AGC与AVC各自的控制策略，提出AGC与AVC的协调校正控制方法。通过算例验证表明，所提方法在满足AGC与AVC各自控制目标的同时，实现了电网的经济运行，抑制了AGC与AVC的相互影响，促进了AGC与AVC的相互支撑。
关键词:  有功功率  无功功率  自动发电控制  自动电压控制  联合优化  协调校正
DOI：10.7667/j.issn.1674-3415.2015.15.007
分类号:
基金项目:
Coordinated control method of AGC and AVC in power grid
YU Ting1,2, PU Tianjiao2, LIU Guangyi2, LI Shiguang2, ZHAO Cong3, TIAN Aizhong4
1.School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China;2.China Electric Power Research Institute, Beijing 100192, China;3.Key Laboratory of Smart Grid, Tianjin University, Ministry of Education, Tianjin 300072, China;4.State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Abstract:
With the coupling relationship between active power and reactive power in power system becoming stronger, the control mode that automatic generation control (AGC) and automatic voltage control (AVC) operate separately may influence the control effect. Considering of the different control periods of AGC and AVC, this paper proposes a coordinated control method of AGC and AVC with a connection on the time scale of minute level and second level. On the minute level, an optimal power flow model of active power and reactive power associated together is established, a AGC and AVC associated optimization control method is proposed. On the second level, the respective control strategy of AGC and AVC is improved and a coordinated correction control method of AGC and AVC is proposed. Simulation is made to verify that the method proposed meets the respective control objective of AGC and AVC. At the same time, it can realize the economic operation of power system, restrain the mutual influence of AGC and AVC, and promote the mutual support between AGC and AVC.
Key words:  active power  reactive power  automatic generation control (AGC)  automatic voltage control (AVC)  associated optimization  coordinated correction
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