Reliability Research on Idle Speed Synchronization of Large Condenser

doi:10.11930/j.issn.1004-9649.201711231

Abstract

Abstract: The output side of the static frequency converter (SFC) which is not equipped with step-up transformer can reduce the overall cost of installing the condenser, but then the conditions of grid connection will become harsh when the rotor speed is no longer controllable. In order to improve the grid-connected reliability of synchronization, firstly the relationship is established between the inrush current, frequency difference and angular difference, secondly the existence probability of synchronous point are researched on, then some suggestions that select a small lag angle in the positive frequency difference, a small advanced angle in the negative frequency difference and so on are put forward to improve the reliability of synchronization. Based on the example, the existence probabilities and permissible frequency differences are studied that verify the proposed methods can effectively improve the reliability of synchronization.

Key words: condenser, static frequency converter, idle speed, synchronization, grid connection

CLC Number:

TM311

ZENG Xianfeng, HOU Wei, CHEN Jun. Reliability Research on Idle Speed Synchronization of Large Condenser[J]. Electric Power, 2017, 50(12): 38-43.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201711231

https://www.electricpower.com.cn/EN/Y2017/V50/I12/38

References

[1] 孙昕. 中国电力建设技术进展及发展趋势-（上）电网部分[J]. 中国电力,2017,50（3）：1-8.
SUN Xin. Progress and development trend of electric power construction technology in China: part-power grid [J]. Electric Power, 2017, 50(3): 1-8.
[2] 刘振亚,张启平,王雅婷,等. 提高西北新甘青750 kV送端电网安全稳定水平的无功补偿措施研究[J]. 中国电机工程学报,2015,35（5）：1015-1022.
LIU Zhenya, ZHANG Qiping, WANG Yating, et al . Research on reactive compensation strategies for improving stability level of sending-end of 750 kV grid in northwest China [J]. Proceedings of the CSEE, 2015, 35(5): 1015-1022.
[3] 覃琴,郭强,周勤勇,等. 国网“十三五”规划电网面临的安全稳定问题及对策[J]. 中国电力,2015,48（1）：25-32.
QIN Qin, GUO Qiang, ZHOU Qingyong, et al . The security and stability of power grids in 13th five-year planning and count ermeasures [J]. Electric Power, 2015, 48(1): 25-32.
[4] 康世崴,沙志成,刘之华. 关于临沂换流站调相机接入系统关键问题的研究[J]. 国网技术学院学报,2016,19（4）：45-48.
KANG Shiwei, SHA Zhicheng, LIU Zhihua. Research on key issues of rotary condenser access system of Linyi converter station[J]. Journal of State Grid Technology College, 2016, 19(4): 45-48.
[5] 陶大军. 发电电动机静止变频器起动强迫换流阶段若干问题研究[D]. 哈尔滨：哈尔滨理工大学,2013.
TAO Dajun. Research on several issues of generator/motor starting with SFC during forced commutation[D]. Harbin: Harbin University of Science and Technology, 2013.
[6] 郑天文,陈来军,陈天一,等. 虚拟同步发电机技术及展望[J]. 电力系统自动化,2015（21）：165-175.
ZHENG Tianwen, CHEN Laijun, CHEN Tianyi, et al . Review and prospect of virtual synchronous generator technologies[J]. Automation of Electric Power Systems, 2015, 39(21): 165-175.
[7] HART DAVID, NOVOSEL DAMIR. A New frequency tracking and phasor estimation algorithm for generator protection [J]. IEEE Trans on PWRD, 1997, 12(3): 1064-1073.
[8] 金光哲. 大功率同步电动机自控变频式软起动技术研究[D]. 哈尔滨：哈尔滨工业大学,2014.
JIN Guangzhe. Research on technology of self-controlled soft start with variable frequency for high-power synchronous motor[D]. Harbin: Harbin Institute of Technology, 2014.
[9] HOSEON R, BONGSUCK K, JOOHYUN L, et al . A Study of synchronous motor drive using static frequency converter [C]//12th International Power Electronics and Motion Control Conference, EPE-PEMC 2006, Portoroz, Slovenia, Aug. 30-Sept. 1, 2006: 1496-1499.
[10] 王茜茜. 大型同步电机静止变频器软起动控制系统研究[D]. 武汉：华中科技大学,2013.
WANG Xixi. Research on static frequency converter soft-starting control system for large synchronous motors [D]. Wuhan:Huazhong University of Science and Technology, 2013.
[11] 王庆玉,李秀卫. 发电机组同期并列问题研究[J]. 山东电力技术,2009（3）：50-51,61.
WANG Qingyu, LI Xiuwei. The investigation of generator set quasi-same period incorporate in power network[J]. Shandong Electric Power, 2009(3): 50-51, 61.
[12] 高超,郭强,周勤勇,等. “十三五”电力规划中新能源大规模外送的安全稳定问题[J]. 中国电力,2017,50（1）：37-42.
GAO Chao, GUO Qiang, ZHOU Qinyong, et al . The security and stability problems of large-scale outbound power transmission of renewable energy in the 13th five-year power plan[J]. Electric Power, 2017, 50(1): 37-42.
[13] 付巍. 同步发电机并网运行的研究[J]. 机械管理开发,2005（5）：23-24.
FU Wei. Research on synchronous generators combined in the grid [J]. Mechanical Management and Development, 2005(5): 23-24.
[14] PETERSSON T, FRAND K. Starting of large synchronous motor using static frequency converter [J]. Power Apparatus and Systems, 1972(1): 172-179.
[15] 韩富春. 电力系统自动化技术[M]. 北京：水利水电出版社,2003.
[16] 彭晓涛,王少荣,程时杰.高性能微机自动准同期装置[J]. 电力系统自动化,2002,26（9）：75-77.
PENG Xiaotao, WANG Shaorong, CHENG Shijie. A high performance microprocessor-based automatic quasi-synchronization device [J]. Automation of Electric Power Systems, 2002, 26(9): 75-77.
[17] 潘书燕,曹团结,陈永华. 在线路测控单元中实现的准同期功能[J]. 继电器,2003,31（12）：58-60.
PAN Shuyan, CAO Tuanjie, CHEN Yonghua. Necessity of the quasi-synchronization functions in the line monitor and control unit[J]. Relay, 2003, 31(12): 58-60.
[18] 赵永正,代海涛,王安东,等. 高压直流输电系统中调相机的启动与并网策略[J]. 山东电力技术,2017,44（2）：20-22.
ZHAO Yongzheng, DAI Haitao, WANG Andong, et al . Start-up and grid-connection strategies of phase modifiers in HVDC system [J]. Shandong Electric Power, 2017, 44(2): 20-22.
[19] 盛骤,谢式千,潘承毅. 概率论与数理统计[M]. 北京：高等教育出版社,2005.