两类逆变侧控制策略对系统电压与直流主回路设计影响
|
摘要
针对高压直流输电工程逆变站通常采用的定关断角与定电压两类控制策略对系统电压与直流主回路设计的影响进行研究。首先从控制系统原理入手,分析了逆变侧定电压与定关断角两种控制策略的逻辑区别;然后利用电力系统分析计算软件PSD-BPA,模拟了换流站投切滤波器分组的实际工况,明确了两种控制策略在系统电压调节特性方面的差异;最后基于某实际高压直流工程的系统条件和运行参数,借助实时数字仿真系统,校核了定电压与定关断角两种控制策略下系统电压的暂态与稳态恢复特性,进一步验证了相关结论。在此基础上,研究并论证了两种控制策略对于直流换流站无功补偿容量、额定空载直流电压等直流主回路设计基本结论以及主要设备参数的影响。
For an inverter station in a high voltage direct current(HVDC)transmission project,constant-extinction-angle-control and constant-voltage-control strategies are usually adopted. In this paper,the effect of these two control strategies on system voltage and DC main circuit design is studied. First,based on the principle of control system,the logic difference between the two inverter-side control strategies are analyzed. Then,PSD-BPA is used to simulate the working condition when switching filter banks in the converter station,and the differences in the system's voltage regulation characteristics are specified under the two control strategies. Finally,according to the system condition and operation parameters of one real HVDC project,real-time digital simulation(RTDS)system is used to check the voltage recovery characteristics in the transient and steady states under the two control strategies,which further verifies the corresponding conclusions. On this basis,the effect of these two control strategies on the basic conclusions for the DC main circuit design(e.g.,reactive compensation capacity and rated no-load DC voltage of the DC converter station),as well as the main device parameters,is analyzed and verified.
For an inverter station in a high voltage direct current(HVDC)transmission project,constant-extinction-angle-control and constant-voltage-control strategies are usually adopted. In this paper,the effect of these two control strategies on system voltage and DC main circuit design is studied. First,based on the principle of control system,the logic difference between the two inverter-side control strategies are analyzed. Then,PSD-BPA is used to simulate the working condition when switching filter banks in the converter station,and the differences in the system's voltage regulation characteristics are specified under the two control strategies. Finally,according to the system condition and operation parameters of one real HVDC project,real-time digital simulation(RTDS)system is used to check the voltage recovery characteristics in the transient and steady states under the two control strategies,which further verifies the corresponding conclusions. On this basis,the effect of these two control strategies on the basic conclusions for the DC main circuit design(e.g.,reactive compensation capacity and rated no-load DC voltage of the DC converter station),as well as the main device parameters,is analyzed and verified.
引文
[1]刘振亚.特高压交直流电网[M].北京:中国电力出版社,2013.
[2]舒印彪(Shu Yinbiao).中国直流输电的现状及展望(Present status and prospect of HVDC transmission inChina)[J].高电压技术(High Voltage Engineering),2004,30(11):1-2,20.
[3]Chen W J,Cui X.Foreword for the special section on ACand DC ultra high voltage technologies[J].CSEE Journalof Power and Energy Systems,2015,1(3):1-2.
[4]赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2010.
[5]赵书强,董沛毅,蒲莹,等(Zhao Shuqiang,Dong Peiyi,Pu Ying,et al).逆变侧控制策略对换相失败影响的研究(Research on influence of inverter side control strategyon commutation failure)[J].电网技术(Power SystemTechnology),2016,40(12):3840-3848.
[6]杨欢欢,朱林,蔡泽祥,等(Yang Huanhuan,Zhu Lin,CaiZexiang,et al).直流控制对直流系统无功动态特性的影响分析(Influence of HVDC control on HVDC reactivepower dynamic characteristic)[J].电网技术(Power Sys-tem Technology),2014,38(10):2631-2637.
[7]撖奥洋,张滨,孙忠良,等(Han Aoyang,Zhang Bin,SunZhongliang,et al).受端行为对直流输电系统的影响(Influence of operations of receiving system on the DCtransmission system)[J].电力系统及其自动化学报(Pro-ceedings of the CSU-EPSA),2017,29(12):35-41.
[8]常浩,樊纪超(Chang Hao,Fan Jichao).特高压直流输电系统成套设计及其国产化(System design and its local-ization of UHVDC transmission project)[J].电网技术(Power System Technology),2006,30(16):1-5.
[9]蒋维勇,张涛,刘心旸,等.灵州—绍兴±800 k V特高压直流输电工程成套设计书[R].北京:国网北京经济技术研究院,2013.
[10]邱伟钟,杰峰,伍文城(Qiu Weizhong,Jie Feng,WuWencheng).±800 k V云广直流换流站无功补偿与配置方案(Reactive power compensation scheme and its con-figuration for converter station of±800 k V DC powertransmission project from Yunnan to Guangdong)[J].电网技术(Power System Technology),2010,34(6):93-97.
[11]Liu Z H,Yu J,Guo X S,et al.Survey of technologies ofline commutated converter based high voltage direct cur-rent transmission in China[J].CSEE Journal of Power andEnergy Systems,2015,1(2):1-8.
[12]李新年,易俊,李柏青,等(Li Xinnian,Yi Jun,Li Baiq-ing,et al).直流输电系统换相失败仿真分析及运行情况统计(Simulation analysis and operation statistics of com-mutation failure in HVDC transmission system)[J].电网技术(Power System Technology),2012,36(6):266-271.
[13]李亚男,卢亚军,刘心旸,等(Li Yanan,Lu Yajun,LiuXinyang,et al).逆变侧控制策略对换相失败的影响及恢复特性优化研究(Influence of inverter control strategyon commutation failure and recovery characteristic optimi-zation)[J].电力建设(Electric Power Construction),2015,36(9):112-116.
[14]石岩,韩伟,张民,等(Shi Yan,Han Wei,Zhang Min,et al).特高压直流输电工程控制保护系统的初步方案(A preliminary scheme for control and protection systemof UHVDC project)[J].电网技术(Power System Technol-ogy),2007,31(2):11-15,21.
[2]舒印彪(Shu Yinbiao).中国直流输电的现状及展望(Present status and prospect of HVDC transmission inChina)[J].高电压技术(High Voltage Engineering),2004,30(11):1-2,20.
[3]Chen W J,Cui X.Foreword for the special section on ACand DC ultra high voltage technologies[J].CSEE Journalof Power and Energy Systems,2015,1(3):1-2.
[4]赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2010.
[5]赵书强,董沛毅,蒲莹,等(Zhao Shuqiang,Dong Peiyi,Pu Ying,et al).逆变侧控制策略对换相失败影响的研究(Research on influence of inverter side control strategyon commutation failure)[J].电网技术(Power SystemTechnology),2016,40(12):3840-3848.
[6]杨欢欢,朱林,蔡泽祥,等(Yang Huanhuan,Zhu Lin,CaiZexiang,et al).直流控制对直流系统无功动态特性的影响分析(Influence of HVDC control on HVDC reactivepower dynamic characteristic)[J].电网技术(Power Sys-tem Technology),2014,38(10):2631-2637.
[7]撖奥洋,张滨,孙忠良,等(Han Aoyang,Zhang Bin,SunZhongliang,et al).受端行为对直流输电系统的影响(Influence of operations of receiving system on the DCtransmission system)[J].电力系统及其自动化学报(Pro-ceedings of the CSU-EPSA),2017,29(12):35-41.
[8]常浩,樊纪超(Chang Hao,Fan Jichao).特高压直流输电系统成套设计及其国产化(System design and its local-ization of UHVDC transmission project)[J].电网技术(Power System Technology),2006,30(16):1-5.
[9]蒋维勇,张涛,刘心旸,等.灵州—绍兴±800 k V特高压直流输电工程成套设计书[R].北京:国网北京经济技术研究院,2013.
[10]邱伟钟,杰峰,伍文城(Qiu Weizhong,Jie Feng,WuWencheng).±800 k V云广直流换流站无功补偿与配置方案(Reactive power compensation scheme and its con-figuration for converter station of±800 k V DC powertransmission project from Yunnan to Guangdong)[J].电网技术(Power System Technology),2010,34(6):93-97.
[11]Liu Z H,Yu J,Guo X S,et al.Survey of technologies ofline commutated converter based high voltage direct cur-rent transmission in China[J].CSEE Journal of Power andEnergy Systems,2015,1(2):1-8.
[12]李新年,易俊,李柏青,等(Li Xinnian,Yi Jun,Li Baiq-ing,et al).直流输电系统换相失败仿真分析及运行情况统计(Simulation analysis and operation statistics of com-mutation failure in HVDC transmission system)[J].电网技术(Power System Technology),2012,36(6):266-271.
[13]李亚男,卢亚军,刘心旸,等(Li Yanan,Lu Yajun,LiuXinyang,et al).逆变侧控制策略对换相失败的影响及恢复特性优化研究(Influence of inverter control strategyon commutation failure and recovery characteristic optimi-zation)[J].电力建设(Electric Power Construction),2015,36(9):112-116.
[14]石岩,韩伟,张民,等(Shi Yan,Han Wei,Zhang Min,et al).特高压直流输电工程控制保护系统的初步方案(A preliminary scheme for control and protection systemof UHVDC project)[J].电网技术(Power System Technol-ogy),2007,31(2):11-15,21.