含新能源接入的双极柔性直流电网运行特性研究与工程实践Operating Characteristics Research and Engineering Applicationof Voltage Source Converter Based DC GridWith Renewable Source Connected
刘泽洪;郭贤珊;
摘要(Abstract):
作为一种新的电网型式,直流电网与端对端柔性直流工程具有不同的特点。结合世界上首个柔性直流电网工程—张北柔性直流电网试验示范工程,分析了直流电网的稳态和动态运行特性,建立了直流电网的稳态和动态分析模型;然后提出了直流电网的故障防御标准,对直流电网线路故障、换流器故障、直流母线故障等故障特性进行了深入分析,提出了各类故障的处理策略;最后提出了直流电网的控制策略。所开展的研究应用到张北柔性直流电网试验示范工程的建设中,并对后续直流电网工程具有重要的参考意义。
关键词(KeyWords): 直流电网;稳态特性;动态特性;故障防御标准;故障处理策略;控制策略
基金项目(Foundation): 国家重点研发计划项目(2016YFB0900905)~~
作者(Author): 刘泽洪;郭贤珊;
Email:
DOI: 10.13335/j.1000-3673.pst.2020.0254a
参考文献(References):
- [1] Ooi B T,Wang X.Voltage angle lock loop control of the boost type PWM converter for HVDC application[J].IEEE Transactions on Power Electronics,1990,5(2):229-235.
- [2] Lesnicar A,Marquardt R.An innovative modular multilevel converter topology suitable for a wide power range[C]//2003 IEEE Bologna Power Tech Conference.Bologna,Italy:IEEE,2003.
- [3]王姗姗,周孝信,汤广福,等.模块化多电平电压源换流器的数学模型[J].中国电机工程学报,2011,31(24):1-8.Wang Shanshan,Zhou Xiaoxin,Tang Guangfu,et al.Modeling of modular multi-level voltage source converter[J].Proceedings of the CSEE,2011,31(24):1-8(in Chinese).
- [4]李探,赵成勇,AniGole.考虑内部动态特性的MMC小信号模型[J].中国电机工程学报,2016,36(11):2890-2899.Li Tan,Zhao Chengyong,Ani Gole.Small-signal model of the modular multilevel converter considering the internal dynamics[J].Proceedings of the CSEE,2016,36(11):2890-2899(in Chinese).
- [5] Guan M,Xu Z.Modeling and control of a modular multilevel converter-based HVDC system under unbalanced grid conditions[J].IEEE Transactions on Power Electronics,2012,27(12):4858-4867.
- [6] Hagiwara M, Akagi H. Control and experiment of pulsewidth-modulated modular multilevel converters[J]. IEEE Transactions on Power Electronics,2009,24(7):1737-1746.
- [7]孔明,邱宇峰,贺之渊,等.模块化多电平式柔性直流输电换流器的预充电控制策略[J].电网技术,2011,35(11):67-73.Kong Ming,QiuYufeng,He Zhiyuan,et al.Pre-charging control strategies of modular multilevel converter for VSC-HVDC[J].Power System Technology,2011,35(11):67-73(in Chinese).
- [8] Gnanarathna U N,Gole A M,Jayasinghe R P.Efficient modeling of modular multilevel HVDC converters(MMC)on electromagnetic transient simulation programs[J]. IEEE Transactions on Power Delivery,2011,26(1):316-324.
- [9]许建中.模块化多电平换流器电磁暂态高效建模方法研究[D].北京:华北电力大学,2014.
- [10] Zhao Chengyong,XuJianzhong,Li Tan.DC fault ride-through capability analysis of full-bridge MMC-MTDC systems[J].Science China Technological Sciences,2013,43(1):106-114.
- [11] Marquardt R.Modular multilevel converter topologies with DC-short circuit current limitation[C]//Power Electronics and ECCE Asia(ICPE&ECCE),2011 IEEE 8th International Conference on,May 30,2011:1425-1431.
- [12]汤广福,罗湘,魏晓光.多端直流输电与直流电网技术[J].中国电机工程学报,2013,33(10):8-17.Tang Guangfu,Luo Xiang,Wei Xiaoguang.Multi-terminal HVDC and DC-grid technology[J].Proceedings of the CSEE,2013,33(10):8-17(in Chinese).
- [13]董新洲,汤兰西,施慎行,等.柔性直流输电网线路保护配置方案[J].电网技术,2018,42(6):1752-1759.Dong Xinzhou,Tang Lanxi,Shi Shenxing,et al.Configuration scheme of transmission line protection for flexible HVDC grid[J].Power System Technology,2018,42(6):1752-1759(in Chinese).
- [14]朱童,余占清,曾嵘,等.混合式直流断路器模型及其操作暂态特性研究[J].中国电机工程学报,2016,36(1):18-30.Zhu Tong,Yu Zhanqing,ZengRong,et al.Transient model and operation characteristics researches of hybrid DC circuit breaker[J].Proceedings of the CSEE,2016,36(1):18-30(in Chinese).
- [15]鲁晓军.柔性直流电网小信号建模及稳定性分析[D].武汉:华中科技大学,2018.
- [16]杨艳晨,郭剑波,王姗姗.柔性直流电网直流过电压分析及控制策略研究[J].电网技术,2019,43(5):1586-1592.Yang Yanchen,GuoJianbo,Wang Shanshan.Analysis and control strategy of DC overvoltage in MMC-HVDC grid[J].Power System Technology,2019,43(5):1586-1592(in Chinese).