互联电网CPS标准下计及一次调频的最优AGC控制模型

发布时间：2019-05-08 18:30

【摘要】：分析互联电网环境下机组一次调频的重要性及其对电网自动发电控制(automatic generation control,AGC)的影响,针对传统AGC控制策略难以计及一次调频的问题,提出AGC与一次调频协同控制的线性增量表达,进而构建互联电网控制性能标准(control performance standard,CPS)下计及一次调频的最优AGC控制的混合整数线性规划模型。在模型中,根据电力系统特性,将AGC机组调节指令状态变量由传统的三态变量转化为两态变量表示;采用线性化手段,将传统非线性最小加减速时间约束线性化。某省实际系统的计算结果表明:新模型显著减少了AGC机组的下令次数,有效提高了CPS考核指标水平,明显降低了系统调节成本,具有良好的应用前景。
[Abstract]:This paper analyzes the importance of primary frequency modulation of units in the environment of interconnected power grid and its influence on automatic power generation control (automatic generation control,AGC of power grid. Aiming at the problem that the traditional AGC control strategy is difficult to take into account the primary frequency modulation. The linear incremental expression of AGC and primary FM co-control is proposed, and a mixed integer linear programming model for optimal AGC control with primary FM under interconnected power grid control performance standard (control performance standard,CPS) is constructed. In the model, according to the characteristics of power system, the state variables of regulation instructions of AGC units are transformed from traditional three-state variables to two-state variables, and the traditional nonlinear minimum acceleration and deceleration time constraints are linearized by means of linearization. The calculation results of an actual system in a province show that the new model can significantly reduce the number of orders of AGC units, effectively improve the level of CPS assessment index, and obviously reduce the cost of system regulation. It has a good application prospect.
【作者单位】：广西电力系统最优化与节能技术重点实验室(广西大学);广西电网电力调度控制中心;国网陕西省电力公司电力科学研究院;
【基金】：国家重点基础研究发展规划项目(973项目)(2013CB 228205) 国家自然科学基金项目(51167001,51107011)~~
【分类号】：TM621

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