抑制电力系统超低频振荡的水轮机调速器参数优化控制研究Research on Parameter Optimization Control of Turbine Governor for Suppressing Ultra-low Frequency Oscillation in Power Systems
肖灿;王德林;李振鹏;李智;周鑫;康积涛;
摘要(Abstract):
实际异步联网系统中多次发生长时间、超低频振荡事件。研究发现,调速器参数设置不合理是导致振荡发生的重要原因。首先采用简化型PID调速器进行验证,研究了永态差值系数bp对于电力系统稳定性的影响。接着基于单机单负荷的模型,采用遗传–粒子群(GA-PSO)算法对电力系统中调速器的PID参数进行优化处理,在MATLAB/Simulink仿真软件中搭建单机单负荷的模型,通过对优化前后发电机转速偏差波形图的分析,说明所提出的优化算法对于PID型调速器的参数优化的效果,对于抑制电力系统中超低频振荡的现象具有实际的意义。最后在PSD-BPA仿真软件中搭建异步4机2区域以及复现云南电网的实际孤岛模型,对发电机中调速器参数进行仿真验证,通过采用优化算法得到的参数来调节PID参数,结果表明优化后的参数对于超低频振荡具有较好的抑制。
关键词(KeyWords): 超低频振荡;永态差值系数;调速系统;遗传-粒子群算法;转速偏差
基金项目(Foundation): 国家自然科学基金项目(51477143);; 中国南方电网公司项目(K-YNKJXM-20160159)~~
作者(Author): 肖灿;王德林;李振鹏;李智;周鑫;康积涛;
Email:
DOI: 10.13335/j.1000-3673.pst.2019.1503
参考文献(References):
- [1]刘春晓,张俊峰,陈亦平,等.异步联网方式下云南电网超低频振荡的机理分析与仿真[J].南方电网技术,2016,10(7):29-34.Liu Chunxiao,Zhang Junfeng,Chen Yiping,et al.Mechanism analysis and simulation on ultra-low frequency oscillation of Yunnan power grid in asynchronous interconnection mode[J].Southern Power System Technology,2016,10(7):29-34(in Chinese).
- [2]张建新,刘春晓,陈亦平,等.异步联网方式下云南电网超低频振荡的抑制措施与试验[J].南方电网技术,2016,10(7):35-39.Zhang Jianxin,Liu Chunxiao,Chen Yiping,et al.Countermeasures and experiments on ultra-low frequency oscillation of Yunnan power grid in asynchronous interconnection mode[J]. Southern Power System Technology,2016,10(7):35-39(in Chinese).
- [3]王官宏,于钊,张怡,等.电力系统超低频率振荡模式排查及分析[J].电网技术,2016,40(8):2324-2330.Wang Guanhong,Yu Zhao,Zhang Yi,et al.Troubleshooting and analysis of ultra-low frequency oscillation mode in power system[J].Power System Technology,2016,40(8):2324-2330(in Chinese).
- [4] Rimorov D,Kamwa I,Joos G.Quasi-steady-state approach for analysis of frequency oscillations and damping controller design[J].IEEE Trans on Power Systems,2016,31(4):3212-3220.
- [5]陈亦平,程哲,张昆,等.高压直流输电系统孤岛运行调频策略[J].中国电机工程学报,2013,33(4):96-102.Chen Yiping,Cheng Zhe,Zhang Kun,et al.Frequency regulation strategy for islanding operation of HVDC[J].Proceedings of the CSEE,2013,33(4):96-102(in Chinese).
- [6]贺静波,张剑云,李明节,等.直流孤岛系统调速器稳定问题的频域分析与控制方法[J].中国电机工程学报,2013,33(16):137-143.He Jingbo,Zhang Jianyun,Li Mingjie,et al.Frequency domain analysis and control for governor stability problem in islanded HVDC sending systems[J].Proceedings of the CSEE,2013,33(16):137-143(in Chinese).
- [7]路晓敏,陈磊,陈亦平,等.电力系统一次调频过程的超低频振荡分析[J].电力系统自动化,2017,41(16):64-70.Lu Xiaomin,Chen Lei,Chen Yiping,et al.Ultra-low-frequency oscillation of power system primary frequency regulation[J].Automation of Electric Power Systems,2017,41(16):64-70(in Chinese).
- [8]高建瑞,李国杰,汪可友,等.电力系统超低频振荡的阻尼与同步转矩分析[J/OL].电网技术:1-8[2019-11-26].2018.2375.Gao Jianrui,Li Guojie,Wang Keyou,et al.Damping torque and synchronous torque analysis of power system ultra-low frequency oscillation[J/OL].Power System Technology:1-8.2018.2375(in Chinese).
- [9]陈磊,路晓敏,陈亦平,等.多机系统超低频振荡分析与等值方法[J].电力系统自动化,2017,41(22):10-15.Chen Lei,Lu Xiaomin,Chen Yiping,et al.Analysis of ultra-lowfrequency oscillation in multi-machine system and equivalent method[J].Automation of Electric Power Systems,2017,41(22):10-15(in Chinese).
- [10] Wang Guoteng,Xu Zheng,Guo Xiangyang,et al.Mechanism Analysis and suppression method of ultra-low-frequency oscillations caused by hydropower units[J].International Journal of Electrical Power&Energy Systems,2018,103:102-114.
- [11]邓伟,王德林,魏蒙希,等.水轮机调速器参数对电力系统超低频振荡的影响[J].电网技术,2019,43(4):1371-1377.Deng Wei,Wang Delin,Wei Mengxi,et al.Influencing mechanism study on turbine governor parameters upon ultra-low frequency oscillation of power system[J].Power System Technology,2019,43(4):1371-1377(in Chinese).
- [12]苏亚鹏,刘天琪,李保宏,等.超低频振荡机理分析及水轮机调速系统参数优化[J/OL].电网技术:1-9[2019-11-26].2019.0342.Su Yapeng,Liu Tianqi,Li Baohong,et al.Mechanism analysis of ultra-low frequency oscillation and parameter optimization of hydro turbine governor[J/OL]. Power System Technology,1-9[2019-11-26].2019.0342(in Chinese).
- [13]史华勃,陈刚,丁理杰,等.兼顾一次调频性能和超低频振荡抑制的水轮机调速器PID参数优化[J].电网技术,2019,43(1):221-226.Shi Huabo,Chen Gang,Ding Lijie,et al.PID parameter optimization of hydro turbine governor considering the primary frequency regulation performance and ultra-low frequency oscillation suppression[J].Power System Technology,2019,43(1):221-226(in Chinese).
- [14]周靖皓,江崇熙,甘德强,等.基于值集法对云南电网超低频振荡的稳定分析[J].电网技术,2017,41(10):3147-3152.Zhou Jinghao,Jiang Chongxi,Gan Deqiang,et al.Stability analysis of ultra-low frequency oscillation of Yunnan power grid based on value set approach[J].Power system Technology,2017,41(10):3147-3152(in Chinese).
- [15]王歆,张怡,王官宏,等.高比例水电送出系统超低频频率振荡风险及影响因素分析[J].电网技术,2019,43(1):206-212.Wang Xin,Zhang Yi,Wang Guanhong,et al.Research on ultra-low frequency oscillation risk and influencing factors of high-ratio hydroelectric transmission system[J].Power System Technology,2019,43(1):206-212(in Chinese).
- [16] Kundur P.Power system stability and control[M].New York,USA:McGraw-Hill,1994.
- [17]汤涌,卜广全,侯俊贤,等.PSD-ST暂态稳定程序用户手册[M].5.0版.北京:中国电力科学研究院系统所,2015.