格库电气化铁路接入对新疆电网电压不平衡影响分析及治理措施

doi:10.11985/2022.04.034

摘要/Abstract

摘要：

为解决库格铁路对新疆巴州若羌片区电网产生的电能质量问题，消除谐波和三相电压不平衡度对电网造成的危害，根据国网巴州供电公司对若羌片区电网三相电压不平衡调查报告，采用PSASP软件，对电力机车过境若羌地区引起的三相电压不平衡以及电压越变情况进行仿真计算。以此为依据，提出采取电网分列运行方式，达到增加电铁与常规用户负荷电气距离、减少电铁冲击负荷对常规用户的影响的目的。通过Fluke 1760三相电能质量记录仪对各站点的谐波、三相电压不平衡度进行现场测试及电能质量评估，并提出了针对若羌片区电网三相电压不平衡度问题的治理措施，有效解决了格库电气化铁路接入巴州电网后的电能质量问题。

关键词: 格库铁路, 新疆电网, 电能质量, 治理措施

Abstract:

In order to solve the power quality problem caused by the Kuge Railway to the power grid in Ruoqiang area of Bazhou, Xinjiang, and eliminate the harm caused by harmonics and three-phase voltage imbalance to the grid, according to three-phase voltage imbalance investigation report of State Grid Bazhou Power Supply Company for the Ruoqiang power grid, PSASP software is used to simulate and calculate the three-phase voltage imbalance and voltage surging caused by electric locomotives passing through the Ruoqiang area. Based on this, a separate grid operation method is adopted to increase the number of electric railways and the electrical distance of the conventional user load, reduce the impact of the electric railway load on the conventional users. Using the Fluke 1760 three-phase power quality recorder, the harmonics and three-phase voltage unbalance of each site are tested on site and power quality evaluation is performed, and the treatment measures for the three-phase voltage unbalance of the Ruoqiang area power grid are put forward, which effectively solve the power quality problem after the Geku railway is connected to the Bazhou power grid.

Key words: Geku railway, Xinjiang power grid, power quality, governance measures

中图分类号:

TM561

克帕依吐·吐尔逊, 焦春雷, 李明, 陈旭, 许雷. 格库电气化铁路接入对新疆电网电压不平衡影响分析及治理措施[J]. 电气工程学报, 2022, 17(4): 318-326.

KEPAIYITULLA·Tursun, JIAO Chunlei, LI Ming, CHEN Xu, XU Lei. Analysis and Control Measures of the Influence of the Grid Connection of Geku Electrified Railway on the Voltage Unbalance of Xinjiang Power Grid[J]. Journal of Electrical Engineering, 2022, 17(4): 318-326.

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参考文献 20

[1]	于坤山. 电气化铁路供电与电能质量[M]. 北京: 中国电力出版社, 2010.
	YU Kunshan. Electrified railway power supply and power quality[M]. Beijing: China Electric Power Press, 2010.
[2]	陈伟. 关于电气化铁路负载对电网电能质量影响的研究[J]. 电子测试, 2016(Z1):64-65.
	CHEN Wei. Research on the influence of electrified railway load on power quality of power grid[J]. Electronic Testing, 2016(Z1):64-65.
[3]	国家市场监督管理总局, 中国国家标准化管理委员会. GB/T 755—2019 旋转电机定额和性能[S]. 北京: 中国标准出版社, 2019.
	State Administration for Market Regulation, Standardization Administration of the People’s Republic of China. GB/T 755—2019 Rotating electrical machines—Rating and performance[S]. Beijing: China Standards Press, 2019.
[4]	中华人民共和国国家能源局. DL/T 1773—2017 电力系统电压和无功电力技术导则[S]. 北京: 中国标准出版社, 2017.
	National Energy Administration. DL/T 1773—2017 Technical guide for electric power system voltage and reactive compensation[S]. Beijing: China Standards Press, 2017.
[5]	中华人民共和国国家能源局. DL/T 1375—2014 电能质量评估技术导则三相电压不平衡[S]. 北京: 中国标准出版社, 2014.
	National Energy Administration. DL/T 1375—2014 Technical guide for power quality assessment—Three-phase voltage unbalance[S]. Beijing: China Standards Press, 2014.
[6]	于希军, 王鹏举, 武丙顺. 电气化铁路牵引负荷对电网电能质量的影响[J]. 中国新通信, 2018, 20(21):35-39.
	YU Xijun, WANG Pengju, WU Bingshun. The influence of electrified railway traction load on power quality of power grid[J]. China New Telecommunications, 2018, 20(21):35-39.
[7]	马天娇, 李青, 张明江, 等. 基于莫合泉变电站实测数据分析电气化铁路对电网电能质量的影响[J]. 黑龙江电力, 2021, 43(5):412-415.
	MA Tianjiao, LI Qing, ZHANG Mingjiang, et al. Analyze the influence of electrified railway on power quality of power grid based on the measured data of Mohequan substation[J]. Heilongjiang Electric Power, 2021, 43(5):412-415.
[8]	张峥, 白洋, 易鹏. 格库铁路供电系统对新疆电网电能质量的影响分析[J]. 黑龙江电力, 2017(4):323-326.
	ZHANG Zheng, BAI Yang, YI Peng. Analysis of the influence of the power supply system of Geku railway on the power quality of Xinjiang power grid[J]. Heilongjiang Electric Power, 2017(4):323-326.
[9]	李兴荣. 牵引变电所电能质量分析及治理措施探讨[J]. 电工技术, 2019(3):116-119.
	LI Xingrong. Discussion on power quality analysis and treatment measures of traction substation[J]. Electrical Engineering Technology, 2019(3):116-119.
[10]	刘莹. 电气化铁路接入对电网电能质量的影响评估及治理研究[D]. 济南: 山东大学, 2014.
	LIU Ying. Evaluation and evaluation of the impact of electrified railway access on the power quality of the power grid governance research[D]. Jinan: Shandong University, 2014.
[11]	罗杰. 电气化铁路的电能质量问题及改进措施[J]. 大众用电, 2019, 34(4):29-30.
	LUO Jie. Power quality problems of electrified railways and improvement measures[J]. Popular Utilization of Electricity, 2019, 34(4):29-30.
[12]	张策, 刘莉, 王达, 等. 电气化铁路对电网谐波影响及抑制措施分析[J]. 沈阳工程学院学报, 2018, 14(1):50-55.
	ZHANG Ce, LIU Li, WANG Da, et al. Analysis of the influence of electrified railway on power grid harmonics and suppression measures[J]. Journal of Shenyang Institute of Technology, 2018, 14(1):50-55.
[13]	刘剑, 黄小庆, 曹一家, 等. 三相SVC在电气化铁路电能质量治理中的应用[J]. 电力系统及其自动化学报, 2011(6):26-32.
	LIU Jian, HUANG Xiaoqing, CAO Yijia, et al. Application of three-phase SVC in power quality management of electrified railway[J]. Proceedings of the CSU-EPSA, 2011(6):26-32.
[14]	周水金, 翟严. 高速电气化铁路对电网运行影响的测试[J]. 现代企业, 2018(11):96-97.
	ZHOU Shuijin, ZHAI Yan. Test of the influence of high-speed electrified railway on power grid operation[J]. Modern Enterprise, 2018(11):96-97.
[15]	周胜军, 于坤山, 冯满盈, 等. 电气化铁路供电电能质量测试主要结果分析[J]. 电网技术, 2009(13):59-62.
	ZHOU Shengjun, YU Kunshan, FENG Manying, et al. Analysis of the main results of the power quality test of the electrified railway power supply[J]. Power System Technology, 2009(13):59-62.
[16]	游剑辉. 电气化铁路对电网的影响分析[J]. 青海电力, 2012, 31(3):41-46.
	YOU Jianhui. Analysis of the impact of electrified railway on power grid[J]. Qinghai Electric Power, 2012, 31(3):41-46.
[17]	米晓东, 刘毅敏, 赵文华. 电气化铁路负荷对电网负荷特性的影响分析[J]. 山西电力, 2014(4):28-30.
	MI Xiaodong, LIU Yimin, ZHAO Wenhua. Analysis of the influence of electrified railway load on power grid load characteristics[J]. Shanxi Electric Power, 2014(4):28-30.
[18]	徐鹏, 张林, 王天佑. 电气化铁路产生的谐波对电网电能质量的影响[J]. 硅谷, 2013, 6(10):64-65.
	XU Peng, ZHANG Lin, WANG Tianyou. The influence of harmonics generated by electrified railways on power quality of power grid[J]. Silicon Valley, 2013, 6(10):64-65.
[19]	韦启锋. 电气化铁路牵引供电对电网的影响及其应对措施[J]. 广西电业, 2012(11):99-104.
	WEI Qifeng. The impact of electrified railway traction power supply on power grid and its countermeasures[J]. Guangxi Electric Power, 2012(11):99-104.
[20]	王同勋, 于坤山. 电气化铁路负荷对电网电能质量的影响及对策[J]. 供用电, 2009, 26(3):8-12.
	WANG Tongxun, YU Kunshan. The influence of electrified railway load on power quality of power grid and countermeasures[J]. Power Supply and Consumption, 2009, 26(3):8-12.

序号	牵引变	额定电压/kV	牵引变相序	电网相序	短路容量/(MV·A)
序号	牵引变	额定电压/kV	牵引变相序	电网相序	2019年设计数据	2021年设计数据
	SEKL	110	ABC	CAB	637	454
2	AEJS	110	ABC	BCA	538	266
3	WT	220	ABC	ABC	1 036	617
4	NEG	220	ABC	CAB	1 195	739
5	ML	110	ABC	BCA	578	365
6	RQ	110	ABC	ABC	1 422	805
7	YTK	220	ABC	CAB	478	1 234
8	KEDB	110	ABC	BCA	717	373
9	TGSB	110	ABC	ABC	711	635
10	TYZ	110	ABC	CAB	578	439
11	KD	110	ABC	BCA	1 095	822

序号	变电站名称	线路名称	运行方式调整前		运行方式调整后
序号	变电站名称	线路名称	最大值(%)	95%概率值(%)	最大值(%)	95%概率值(%)
1	110 kV QL变	LN线	5.16	3.07	4.32	2.24
2	220 kV TD变	TD牵一线	6.33	2.96	8.55	3.63

序号	牵引站	线路名称	设计最大臂电流/A
1	SEKL	110SM牵一线	694.75
2	AEJS	110MA牵一线	692.25
3	WT	220ZW牵一线	1377.3
4	NEG	220ZN牵一线	691.88
5	ML	110TDM牵一线	692.82
6	RQ	110TDR牵一线	657.28
7	YTK	220LY牵二线	347.15
8	KEDB	110LKK牵一线	347.36
9	TGBS	110LKT牵一线	693.81
10	TYZ	110WT牵二线	644.08
11	KD	110HK牵线	688.33

母线名	各站负序电压不平衡度(%)
母线名	TD分列运行	TD和LB分列运行	某水泥厂由且末接带
SEKL	22.75	27.91	16.75
AEJS	24.64	29.58	18.72
WT	20.57	25.98	14.49
NEG	19.7	25.2	13.58
ML牵引站	19.7	25.2	10.27
RQ牵引站	17.7	23.43	8.06
YTK	9.63	16.36	7.53
KEDB	8.02	8.73	6.92
TGBS	7.63	8.34	6.54
TYZ	3.33	3.33	3.28
KD	3.15	3.28	2.96
QM11	22.66	27.84	16.65
QM21	21.17	26.51	15.09
YZ21	19.52	25.05	13.39
TD21	15.03	21.09	8.76
TD11	17.32	23.09	7.65
QL11	4.2	2.2	7.22(QL12为0)
RQ水泥11	4.19	2.19	0
TRRQ风	2.84	0	4.9
ZY	3.66	1.91	0(ZY12为5.76)
DTRQ风	3.01	1.57	4.77

牵引站名称	牵引供电线路名称	最大三相电压不平衡度(%)	负序电流/A	负序电流限值/A
SEKL	110 kV MS牵一线	7.89	130	99(65)
AEJS	110 kV MA牵一线	7.94	168	62(41)
WT	220 kV ZW牵一线	6.48	65	64(42)
NEG	220 kV ZN牵一线	6.32	47	77(50)
ML	110 kV TDM牵一线	6.28	186	79(52)
若羌	110 kV TDR牵一线	6.33	138	152(99)