摘要
为了确保新能源并网条件下电网能够稳定运行,提出了一种基于改进人工蜂群(Improved Artificial Bee Colony,IABC)算法的自适应控制策略。通过建立节点的电压静态稳定域模型,构建非线性静态安全约束优化问题,同时利用IABC算法求解最优控制量,设计电压频率双闭环控制器,从而实现自适应控制。仿真结果表明,与经典的比例-积分(Proportional-Integral,PI)控制相比,所提策略可以明显缩短动态响应时间,减小频率偏差,并提高电压稳定裕度,增强系统稳定性和抗扰动能力。除此之外,该策略无须精确系统模型,具有简单可实现、全局搜索能力强、动态响应性能好等优点,为新能源大规模并网电网的稳定运行提供了一种高效且稳定的新方法。
In order to ensure the stable operation of power grid under the condition of new energy grid connection,this paper proposes an adaptive control strategy based on Improved Artificial Bee Colony(IABC)algorithm.By establishing the static voltage stability region model of nodes,the nonlinear static security constraint optimization problem is constructed.At the same time,the IABC algorithm is used to solve the optimal control quantity,and the voltage-frequency double closed-loop controller is designed to realize adaptive control.The simulation results show that compared with the classical Proportional-Integral(PI)control,the proposed strategy can obviously shorten the dynamic response time,reduce the frequency deviation,improve the voltage stability margin,and enhance the system stability and anti-disturbance ability.In addition,the strategy does not need an accurate system model,and has the advantages of simplicity and realization,strong global search ability and good dynamic response performance,which provides an efficient and stable new method for the stable operation of large-scale grid-connected new energy sources.
作者
贾静静
刚永婷
JIA Jingjing;GANG Yongting(State Grid Qinghai Electric Power Company Datong County Power Supply Company,Xining 810100,China;State Grid Qinghai Electric Power Company Xining Huangzhong District Power Supply Company,Xining 810000 China)
出处
《通信电源技术》
2023年第23期7-9,共3页
Telecom Power Technology
关键词
新能源并网
电网稳定性
改进人工蜂群(IABC)算法
new energy grid connection
power grid stability
Improved Artificial Bee Colony(IABC)algorithm
