控制器参数对AGC调节性能的影响  

Influence of controller parameters on AGC regulation performance

作　　者：曹子飞 杨栋 吴茂坤 王友龙 潘凤萍 吴振龙 CAO Zifeng;YANG Dong;WU Maokun;WANG Youlong;PAN Fengping;WU Zhenlong(Huadian Laizhou Power Generation Company Limited,Yantai 261441,China;China Southern Power Grid Technology Company Limited,Guangzhou 510080,China;School of Electrical Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]华电莱州发电有限公司,山东烟台261441 [2]南方电网电力科技股份有限公司,广州510080 [3]郑州大学电气工程学院,郑州450001

出　　处：《综合智慧能源》2022年第4期36-42,共7页Integrated Intelligent Energy

基　　金：国家自然科学基金项目(52106030);河南省科技攻关项目(212102311052);电力系统国家重点实验室资助课题(SKLD21KM14)。

摘　　要：构建新型电力系统,需要吸纳大规模的风能、光伏等新能源,自动发电控制(AGC)要求燃煤机组负荷响应同时满足调节速率、调节精度与响应时间的要求。为进一步提高AGC的调节性能,分析了直接能量平衡(DEB)控制结构下控制器参数对AGC调节性能的影响。介绍了调节速率、调节精度与响应时间3个AGC性能指标,并给出了计算方法;分析上述指标的影响因素,并对协调控制系统(CCS)的耦合性、非线性等控制难点进行分析。结合DEB控制结构,在已经优化的控制器参数基础上,通过单一变量法分析控制器参数对上述性能指标的影响。仿真结果表明:功率回路的比例和积分增益以及主蒸汽压力回路的比例增益与AGC调节性能指标具有明显的关联性。为提高AGC调节性能,可以适度增加功率回路的比例增益、功率回路的积分增益以及主蒸汽压力回路的比例增益。上述结论为提高AGC调节性能下的燃煤机组控制器参数优化提供了方向性指导,具有较强的工程实践潜力。To consume more wind power and PV power,Automatic Generation Control(AGC)makes stricter requires on regulation speed,regulation accuracy and coal-fired units’ load response time simultaneously. In order to further enhance the regulation performance of AGC,the influence of controller parameters on the regulation performance of AGC under the Direct Energy Balance(DEB)control structure is analyzed. Firstly,three performance indexes of AGC,regulation rate,regulation accuracy and response time,and their calculation methods are introduced. Analyzing the influencing factors of the indexes above,the control difficulties such as coupling and nonlinearity of the Coordinated Control System(CCS)are summarized. Based on the DEB control structure and optimized controller parameters,the influences of controller parameters on the regulation rate,regulation accuracy and response time are analyzed by single variable method.Simulation results show that the proportional and integral gains of the power loop and the main steam pressure loop have significant correlation with AGC regulation indexes. In order to improve the AGC regulation performance,the proportional gain of the power loop,the integral gain of the power loop and the proportional gain of the main steam pressure circuit can be moderately increased. The conclusions provide direction guidance for controller parameter optimization to enhance the regulation performance of AGC,and which are promising in engineering practices.

关 键 词：自动发电控制 调节速率 调节精度 响应时间 控制器参数 直接能量平衡 新型电力系统 新能源 

分 类 号：TK39[动力工程及工程热物理—热能工程] TM611[电气工程—电力系统及自动化]