考虑主变电所资源共享的城市轨道交通供电系统无功补偿方案
李立颖1周丹1林珊1邹大云2金海奇2解凯2戚贺3张戬3
Reactive Power Compensation Scheme for Urban Rail Power Supply System Considering Main Substation Resource Sharing
LI Liying1ZHOU Dan1LIN Shan1ZOU Dayun2JIN Haiqi2XIE Kai2QI He3ZHANG Jian3
-
作者信息:1.广州地铁设计研究院股份有限公司， 510010， 广州
2.南京南瑞继保电气有限公司， 211102， 南京
3.西南交通大学电气工程学院， 611756， 成都
-
Affiliation:1.Guangzhou Metro Design & Research Institute Co., Ltd., 510010, Guangzhou, China
2.NR Electric Co., Ltd., 211102, Nanjing, China
3.School of Electrical Engineering, Southwest Jiaotong University, 611756, Chengdu, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2024.02.010
-
中图分类号/CLCN:U231.8
-
栏目/Col:学术专论
摘要:
［目的］当城市轨道交通供电系统的主变电所资源共享时，能够节省供电系统的投资成本。在此背景下，为使PCC(公共连接点)的功率因数达到标准，需要对不同阶段的主变电所资源共享无功补偿方案进行研究。［方法］以某城市地铁线路的供电系统为例，根据行车计划和供电系统结构，推算出PCC处在全日功率因数达标的情况下，主变电所资源共享前后的最小无功功率补偿量。提出考虑主变电所资源共享的无功补偿设置方案，以主变电所资源共享前后的最小无功功率补偿量满足补偿需求为基础，以SVG(静止无功发生器)容量最小为目标，确定SVG和电抗器或电容器的安装容量。［结果及结论］在案例线路的供电系统中，1#主变电所主变压器供电分区无功补偿装置的实际配置为：电抗器容量为6.0 Mvar；SVG容量为1.0 Mvar；2#主变压器供电分区无功补偿装置的配置为：电抗器容量为3.0 Mvar；SVG容量为0.5 Mvar。所提供电系统无功补偿方案将总计容量为9.0 Mvar的SVG装置替换成电抗器，在满足无功补偿需求的同时降低了投资成本。
Abstracts:
［Objective］ The resource sharing among main substations in urban rail transit power supply system can lead to significant cost savings. In this context, it is essential to investigate reactive power compensation schemes for different phases of main substation resource sharing to ensure that the power factor at the PCC (point of common coupling) meets the standards. ［Method］ Taking the power supply system of a city's metro line as example, based on the train schedule and power supply system structure, the minimum reactive power compensation required at PCC before and after main substation resource sharing under daily power factor compliance is calculated. A reactive power compensation setting scheme considering main substation resource sharing is proposed, based on the minimum reactive power compensation that meets the compensation requirements before and after main substation resource sharing, with the goal to minimize SVG (static var generators) capacity, determining the installation capacity of SVG and reactor or capacitator. ［Result & Conclusion］ In the power supply system of the case study line, the actual configuration of the reactive power compensation devices for the 1# main substation main transformer power supply zone is as follows: reactor capacity is 6.0 Mvar, and SVG capacity is 1.0 Mvar. For the 2# main transformer power supply zone, the configuration is a reactor capacity of 3.0 Mvar and an SVG capacity of 0.5 Mvar. The proposed reactive power compensation scheme replaces a total capacity of 9.0 Mvar SVG devices with reactors, meeting the reactive power compensation requirements while reducing investment costs.
- 上一篇: 高铁物流运输模式及其可行性
- 下一篇: 深圳地铁全力推进各领域高质量发展
过刊浏览
资料下载
友情链接