电力系统全过程动态仿真中的自动发电控制模型  

Modeling of Automatic Generation Control for Power System Transient, Medium-Term and Long-Term Stabilities Simulations

作　　者：宋新立[1] 王成山[1] 仲悟之[2] 汤涌[2] 卓峻峰[2] 吴国旸[2] 苏志达[2] 

机构地区：[1]智能电网教育部重点实验室(天津大学),天津市南开区300072 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2013年第12期3439-3444,共6页Power System Technology

基　　金：国家高技术研究发展计划(863计划)(2011AA05A103);国家电网公司大电网重大专项资助项目课题(SGCC-MPLG001-2012)~~

摘　　要：针对大规模电力系统二次调频控制的动态仿真问题,采用混杂系统的建模方法,提出一种适于机电暂态及中长期动态全过程仿真的自动发电控制模型。模型主要由属于连续动态系统的区域控制偏差计算、属于离散动态系统的控制策略和机组调节指令计算3个模块组成。通过与电力系统全过程动态仿真程序中已有模型的接口,该模型可以模拟大规模电网中基于A标准和CPS控制性能评价标准的控制策略,以及定频率控制、定交换功率控制和联络线功率频率偏差控制等多种方式。与我国特高压交流联络线相关的2个算例仿真表明,该模型可为大规模电网联络线功率波动限制、多区域AGC控制策略的协调配合和二次调频的优化控制等实际电网问题提供有效的仿真手段。In order to dynamically simulate secondary power frequency control in large power systems, a new automatic generation control （AGC） model, which can be applied for power system electro-mechanical transient, medium-term and long-term dynamics simulation, is proposed based on the modeling method of hybrid system. It mainly consists of three parts： calculation of area control error （ACE）, simulation of control strategy, and calculation of generating power regulation. The first module is modeled by the method of continuous dynamic systems, and the last two modules are modeled by the method of discrete event dynamic systems. By interfacing to the existing models in the power system unified dynamic simulation program, it is capable of simulating not only the three main control modes of AGC for large power systems, i.e., fiat frequency control （FFC）, constant net interchange control （CIC）, and tie line bias frequency control （TBC）, but also the widely-used control strategies based on CPS and A standard. Two simulation cases, which are related to the active power control for the tie-line in China UHVAC interconnected power grid, show that the proposed model can be used for analysis of such problems in large power system operation as smoothing of active power fluctuation on tie-line, coordination of AGC for multi-area control, optimal control of secondary power frequency control, etc..

关 键 词：AGC模型 AGC控制策略 功率波动限制 多时 间尺度全过程仿真 混杂系统 

分 类 号：TM743[电气工程—电力系统及自动化]