基于孤岛模式的可再生能源电网分层能量平衡控制方法  

Layered Energy Balance Control Method for Renewable Energy Grid Based on Island Mode

作　　者：刘震宇[1] LIU Zhen-yu(State Grid Jibei Electric Power Co.,Ltd.,Chengde Power Supply Company,Chengde 067000 China)

机构地区：[1]国网冀北电力有限公司承德供电公司,河北承德067000

出　　处：《自动化技术与应用》2023年第12期75-79,107,共6页Techniques of Automation and Applications

摘　　要：为提升区域电网的稳定、安全运行,需充分协调和控制各类可再生能源能量。提出基于孤岛模式的可再生能源电网分层能量平衡控制方法。该方法以多代理系统为核心,控制可再生能源电网分层能量平衡。在确定多代理系统的控制条件后,设计多代理系统的结构;利用Agent平台构建分层能量平衡控制方法,使配电网调度层、电网中央控制层以及源储荷本地控制层之间相互协调,通过蓄电池Agent控制和下垂控制协调和调度能量资源、保证输出功率的合理、平衡分配,控制可再生能源电网分层能量平衡。测试显示方法具备可再生能源设备运行状态计算能力,获取不同设备的运行状态结果;控制效果良好,电压在切投过程中稳定在305 V左右,频率的波动范围在49.5 Hz~50.5 Hz之间;日弃风弃光量均低于17%,净负荷波动功率结果均在0.52 kW以下,满足应用需求。In order to improve the stable and safe operation of regional power grid,it is necessary to fully coordinate and control all kinds of renewable energy.A layered energy balance control method for renewable energy grid based on island mode is proposed.The method is based on multi-agent system to control the layered energy balance of renewable energy grid.After determining the control conditions of the multi-agent system,the structure of the multi-agent system is designed.Using the energy balance of the layered control method of constructing an agent layer,the distribution network dispatching network central control layer and the source storage mutual coordination between local control layer,through the battery agent coordination and scheduling control and sagging control energy resources,to ensure reasonable and balanced distribution of output power,control and renewable en-ergy grid energy balance.The test results show that this method has the ability to calculate the running state of renewable energy equipment and obtain the running state results of different equipment.The control effect is good,the voltage is stable at about 305 V during the switching process,and the frequency fluctuation range is between 49.5 Hz and 50.5 Hz.The daily wind and light discarding amount are all lower than 17%,and the net load fluctuation power results are all below 0.52 kW,meeting the ap-plication requirements.

关 键 词：孤岛模式 可再生能源 电网分层 能量平衡控制 下垂控制 多代理系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP18[自动化与计算机技术—控制科学与工程]