基于RTDS的快速投切电容器自动装置投切策略研究
|
摘要
为了充分利用系统备用无功资源来提高电网受端动态无功补偿能力,较好地提高电压稳定性,文中基于快速投切电容器自动装置提出了投切电容器的控制策略。投切控制策略设置有系统故障识别逻辑、低压投入电容器逻辑和过压切除电容器逻辑。仿真平台采用数字实时仿真(RTDS)搭建了220 kV及以上系统实时仿真模型,分别连接实际直流控制保护装置与快速投切电容器自动装置,构成了双闭环实时仿真系统。通过设置多种试验项目,开展了不同故障工况下自动装置基本投切策略的试验研究,检验了投切策略的正确性和有效性,为装置的工程实施与应用提供了重要的技术指导。
In order to make full use of the reserve reactive power resources to improve the dynamic reactive power compensation capability of the receiving end of the power grid and improve the voltage stability better, this paper proposes the control strategy of the switching capacitor based on the automatic switching capacitor automatic device. The switching control strategy includes fault identification logic, low-voltage switching capacitor logic and over-voltage switching capacitor logic. The simulation platform builds a real-time simulation model of 220 kV and above based on RTDS, and connects DC protection devices and fast-switching capacitor automatic devices respectively, to form a double closed-loop real-time simulation system. By setting up a variety of test projects, an experimental study of basic switching strategies for automatic devices under different fault conditions is carried out to check the correctness and effectiveness of the switching strategy, which provides important technical guidance for the implementation and application of the device.
In order to make full use of the reserve reactive power resources to improve the dynamic reactive power compensation capability of the receiving end of the power grid and improve the voltage stability better, this paper proposes the control strategy of the switching capacitor based on the automatic switching capacitor automatic device. The switching control strategy includes fault identification logic, low-voltage switching capacitor logic and over-voltage switching capacitor logic. The simulation platform builds a real-time simulation model of 220 kV and above based on RTDS, and connects DC protection devices and fast-switching capacitor automatic devices respectively, to form a double closed-loop real-time simulation system. By setting up a variety of test projects, an experimental study of basic switching strategies for automatic devices under different fault conditions is carried out to check the correctness and effectiveness of the switching strategy, which provides important technical guidance for the implementation and application of the device.
引文
[1] 饶宏,洪潮,周保荣,等. 乌东德特高压多端直流工程受端采用柔性直流对多直流集中馈入问题的改善作用研究[J]. 南方电网技术,2017,11(3):1-5. RAO Hong, HONG Chao, ZHOU Baorong. Study on improvement of VSC-HVDC at inverter side of Wudongde multi-terminal UHVDC for the problem of centralized multi-Infeed HVDC[J]. Southern Power System Technology, 2017,11(3):1-5.
[2] 高东学. 电网无功补偿实用新技术[M]. 北京:中国水利水电出版社,2014.GAO Dongxue. Practical new technology for power grid reactive compensation[M]. Beijing: China Water Conservancy and Hydropower Press,2014.
[3] 谢小荣,姜齐荣. 柔性交流输电系统的原理与应用[M]. 北京:清华大学出版社,2006.XIE Xiaorong, JIANG Qirong. Principle and application of flexible AC transmission system[M]. Beijing: Tsinghua University Press,2006.
[4] 王彬,郭庆来,周华锋,等. 南方电网网省地三级自动电压协调控制系统研究及应用[J]. 电力系统自动化,2014,38(13):208-215.WANG Bin, GUO Qinglai, ZHOU Huafeng, et al. Applications of coordinated automatic voltage control integrated for regional, provincial and prefectural control centers in china southern power grid [J]. Automation of Electric Power Systems,2014, 38(13): 208- 215.
[5] 陈刚,马爱军,张继红,等. AVC分散控制模式下的变电站电压无功控制研究[J]. 电网技术, 2010, 34(12):187-192.CHEN Gang, MA Aijun, ZHANG Jihong. Voltage and reactive power control in substation under decentralized control mode of AVC[J]. Power System Technology, 2010, 34(12):187-192.
[6] 徐式蕴, 刘津, 赵兵, 等. 藏中电网SVC配置方案及补偿策略分析[J]. 电网技术,2013,37(8):2136-2142.XU Shiyun, LIU Jin, ZHAO Bing, et al. Configuration scheme of static var compensator for central tibet power grid and analysis on compensation strategy[J]. Power System Technology, 2013,37(8):2136-2142.
[7] 史丽萍,曹雪祥,陈丽兵,等. 改进的STATCOM相内直流电容电压平衡控制策略[J].电力系统自动化,2015, 39(2):119-126.SHI Liping, CAO Xuexiang, CHEN Libing, et al. An improved DC capacitor voltage balance control strategy among phases for STATCOM[J]. Automation of Electric Power Systems, 2015, 39(2):119-126.
[8] 郭郓闻,张建设,胡云,等. 大容量分布式STATCOM对南方电网交直流系统影响的实时仿真研究[J]. 高电压技术,2014,40(8):2586-2592.GUO Yunwen, ZHANG Jianshe, HU Yun, et al. Real-time simulation analysis of the impacts of distributed large-capacity STATCOM on AC/DC parallel system in china southern power grid[J]. High Voltage Engineering. 2014,40(8):2586-2592.
[9] 王雷. 无功补偿计算及电压无功投切判据分析[J]. 电力自动化设备,2001(6):17-19.WANG Lei. Var compensation calculation and criterion analysis of voltage & var control[J]. Electric Power Automation Equiment, 2001(6):17-19.
[10] 陈杏灿,程汉湘. 晶闸管投切电容器的盲区及减小盲区的控制策略[J]. 广东电力,2016,29(1):79-82.CHEN Xingcan, CHENG Hanxiang. Dead zone of thyristor switching capacitor and control strategies for reducing dead zone[J]. Guangdong Electric Power, 2016,29(1):79-82.
[11] 李淼. 智能型无功补偿控制器的研制[J].电力电容器, 2005(4): 12-17,24.LI Miao. Development of intelligent reactive compensation controller[J]. Power Capacitor, 2005(4):12- 17,24.
[12] 陈杏灿,程汉湘,彭湃. 智能型TSC的晶闸管可靠触发的分析与研究[J]. 广东电力,2016,29(5) :82-85.CHEN Xingcan, CHENG Hanxiang, PENG Pai. Analysis and research on reliable trigger of intelligent TSC thyristor[J].Guangdong Electric Power,2016,29(5):82-85.
[13] 肖建民,董云龙,卢宇,等 . 统一潮流控制器的 RTDS 仿真试验系统 [J]. 供用电,2017,34(8):33-38. XIAO Jianmin,DONG Yunlong,LU Yu,et al. Simulation test system based on RTDS for unified power flow controller [J]. Distribution & Utilization,2017,34(8):33-38.
[14] 欧开健,张树卿,童陆园,等. 基于并行计算机/RTDS的混合实时仿真不对称故障接口交互与实现[J]. 电工技术学报,2016,31(2):178-185.OU Kaijian, ZHANG Shuqing, TONG Luyuan, et al. Interface method and implementation for asymmetric fault simulation on parallel computer/RTDS-based hybrid simulator [J]. Transactions of China Electrotechnical Society, 2016,31(2):178-185.
[15] 蔡海青,黄立滨,郭琦,等. 直流孤岛运行方式下交流保护装置频率适应性仿真研究[J]. 电力自动化设备,2016,36(3):169-174.CAI Haiqing, HUANG Libin, GUO Qi, et al. Simulation of frequency adaptability for AC protective equipment in islanding mode of HVDC operation[J]. Electric Power Automation Equipment, 2016, 36(3):169-174.
[16] 韩伟强,李战鹰,郭琦,等. 电网运行RTDS分析的可行性及方式探讨[J]. 南方电网技术,2010,4(3):51-56.HAN Weiqiang, LI Zhanying, GUO Qi, et al. Research on the feasibility and mode of RTDS analysis of power system operation[J]. Southern Power System Technology, 2010,4(3):51-56.
[17] 蔡海青,郭琦,张建设,等. 基于RTDS的数字与物理混合仿真接口设计与实现[J]. 南方电网技术,2015,9(11): 52-57.CAI Haiqing, GUO Qi, ZHANG Jianshe, et al. Design and implementation of digital physical hybrid simulation interface based on RTDS[J]. Southern Power System Technology, 2015,9(11): 52-57.
[18] 张志强,苗友忠,李笑蓉,等. 电力系统无功补偿点的确定及其容量优化[J]. 电力系统及其自动化学报,2015,27(3):92-97.ZHANG Zhiqiang, MIAO Youzhong, LI Xiaorong, et al. Location selection of reactive power compensation and compensation capacity optimization[J]. Proceedings of the CSU-EPSA,2015,27(3):92-97.
[19] 郑程拓,丁晓群,郑能,等. 计及主动管理的含风电源主动配电网无功补偿规划[J]. 陕西电力,2017,45(6):30-35. ZHENG Chengtuo,DING Xiaoqun,ZHENG Neng,et al. Reactive power compensation planning for active distribution network with wind power considering active management[J]. Shaanxi Electric Power,2017,45(6):30-35.
[20] 李乐,颜君凯. 典型直流落点无功补偿方式对近区交流系统静态电压稳定影响研究[J]. 智慧电力,2018,46(3):49-54. LI Le,YAN Junkai. Effects of reactive power compensation method on static voltage stability of AC system near region of DC location[J]. Smart Power,2018,46(3):49-54.
[21] 王乙伊. 低压配电网无功补偿方式的研究[J]. 广东电力,2007,20(2):33-36.WANG Yiyi.Research on reactive power compensating modes for low voltage distribution network[J]. Guangdong Electric Power, 2007,20 (2):33-36.
[2] 高东学. 电网无功补偿实用新技术[M]. 北京:中国水利水电出版社,2014.GAO Dongxue. Practical new technology for power grid reactive compensation[M]. Beijing: China Water Conservancy and Hydropower Press,2014.
[3] 谢小荣,姜齐荣. 柔性交流输电系统的原理与应用[M]. 北京:清华大学出版社,2006.XIE Xiaorong, JIANG Qirong. Principle and application of flexible AC transmission system[M]. Beijing: Tsinghua University Press,2006.
[4] 王彬,郭庆来,周华锋,等. 南方电网网省地三级自动电压协调控制系统研究及应用[J]. 电力系统自动化,2014,38(13):208-215.WANG Bin, GUO Qinglai, ZHOU Huafeng, et al. Applications of coordinated automatic voltage control integrated for regional, provincial and prefectural control centers in china southern power grid [J]. Automation of Electric Power Systems,2014, 38(13): 208- 215.
[5] 陈刚,马爱军,张继红,等. AVC分散控制模式下的变电站电压无功控制研究[J]. 电网技术, 2010, 34(12):187-192.CHEN Gang, MA Aijun, ZHANG Jihong. Voltage and reactive power control in substation under decentralized control mode of AVC[J]. Power System Technology, 2010, 34(12):187-192.
[6] 徐式蕴, 刘津, 赵兵, 等. 藏中电网SVC配置方案及补偿策略分析[J]. 电网技术,2013,37(8):2136-2142.XU Shiyun, LIU Jin, ZHAO Bing, et al. Configuration scheme of static var compensator for central tibet power grid and analysis on compensation strategy[J]. Power System Technology, 2013,37(8):2136-2142.
[7] 史丽萍,曹雪祥,陈丽兵,等. 改进的STATCOM相内直流电容电压平衡控制策略[J].电力系统自动化,2015, 39(2):119-126.SHI Liping, CAO Xuexiang, CHEN Libing, et al. An improved DC capacitor voltage balance control strategy among phases for STATCOM[J]. Automation of Electric Power Systems, 2015, 39(2):119-126.
[8] 郭郓闻,张建设,胡云,等. 大容量分布式STATCOM对南方电网交直流系统影响的实时仿真研究[J]. 高电压技术,2014,40(8):2586-2592.GUO Yunwen, ZHANG Jianshe, HU Yun, et al. Real-time simulation analysis of the impacts of distributed large-capacity STATCOM on AC/DC parallel system in china southern power grid[J]. High Voltage Engineering. 2014,40(8):2586-2592.
[9] 王雷. 无功补偿计算及电压无功投切判据分析[J]. 电力自动化设备,2001(6):17-19.WANG Lei. Var compensation calculation and criterion analysis of voltage & var control[J]. Electric Power Automation Equiment, 2001(6):17-19.
[10] 陈杏灿,程汉湘. 晶闸管投切电容器的盲区及减小盲区的控制策略[J]. 广东电力,2016,29(1):79-82.CHEN Xingcan, CHENG Hanxiang. Dead zone of thyristor switching capacitor and control strategies for reducing dead zone[J]. Guangdong Electric Power, 2016,29(1):79-82.
[11] 李淼. 智能型无功补偿控制器的研制[J].电力电容器, 2005(4): 12-17,24.LI Miao. Development of intelligent reactive compensation controller[J]. Power Capacitor, 2005(4):12- 17,24.
[12] 陈杏灿,程汉湘,彭湃. 智能型TSC的晶闸管可靠触发的分析与研究[J]. 广东电力,2016,29(5) :82-85.CHEN Xingcan, CHENG Hanxiang, PENG Pai. Analysis and research on reliable trigger of intelligent TSC thyristor[J].Guangdong Electric Power,2016,29(5):82-85.
[13] 肖建民,董云龙,卢宇,等 . 统一潮流控制器的 RTDS 仿真试验系统 [J]. 供用电,2017,34(8):33-38. XIAO Jianmin,DONG Yunlong,LU Yu,et al. Simulation test system based on RTDS for unified power flow controller [J]. Distribution & Utilization,2017,34(8):33-38.
[14] 欧开健,张树卿,童陆园,等. 基于并行计算机/RTDS的混合实时仿真不对称故障接口交互与实现[J]. 电工技术学报,2016,31(2):178-185.OU Kaijian, ZHANG Shuqing, TONG Luyuan, et al. Interface method and implementation for asymmetric fault simulation on parallel computer/RTDS-based hybrid simulator [J]. Transactions of China Electrotechnical Society, 2016,31(2):178-185.
[15] 蔡海青,黄立滨,郭琦,等. 直流孤岛运行方式下交流保护装置频率适应性仿真研究[J]. 电力自动化设备,2016,36(3):169-174.CAI Haiqing, HUANG Libin, GUO Qi, et al. Simulation of frequency adaptability for AC protective equipment in islanding mode of HVDC operation[J]. Electric Power Automation Equipment, 2016, 36(3):169-174.
[16] 韩伟强,李战鹰,郭琦,等. 电网运行RTDS分析的可行性及方式探讨[J]. 南方电网技术,2010,4(3):51-56.HAN Weiqiang, LI Zhanying, GUO Qi, et al. Research on the feasibility and mode of RTDS analysis of power system operation[J]. Southern Power System Technology, 2010,4(3):51-56.
[17] 蔡海青,郭琦,张建设,等. 基于RTDS的数字与物理混合仿真接口设计与实现[J]. 南方电网技术,2015,9(11): 52-57.CAI Haiqing, GUO Qi, ZHANG Jianshe, et al. Design and implementation of digital physical hybrid simulation interface based on RTDS[J]. Southern Power System Technology, 2015,9(11): 52-57.
[18] 张志强,苗友忠,李笑蓉,等. 电力系统无功补偿点的确定及其容量优化[J]. 电力系统及其自动化学报,2015,27(3):92-97.ZHANG Zhiqiang, MIAO Youzhong, LI Xiaorong, et al. Location selection of reactive power compensation and compensation capacity optimization[J]. Proceedings of the CSU-EPSA,2015,27(3):92-97.
[19] 郑程拓,丁晓群,郑能,等. 计及主动管理的含风电源主动配电网无功补偿规划[J]. 陕西电力,2017,45(6):30-35. ZHENG Chengtuo,DING Xiaoqun,ZHENG Neng,et al. Reactive power compensation planning for active distribution network with wind power considering active management[J]. Shaanxi Electric Power,2017,45(6):30-35.
[20] 李乐,颜君凯. 典型直流落点无功补偿方式对近区交流系统静态电压稳定影响研究[J]. 智慧电力,2018,46(3):49-54. LI Le,YAN Junkai. Effects of reactive power compensation method on static voltage stability of AC system near region of DC location[J]. Smart Power,2018,46(3):49-54.
[21] 王乙伊. 低压配电网无功补偿方式的研究[J]. 广东电力,2007,20(2):33-36.WANG Yiyi.Research on reactive power compensating modes for low voltage distribution network[J]. Guangdong Electric Power, 2007,20 (2):33-36.