考虑多种终端配置的中低压配电网供电可靠性协同评估

doi:10.12204/j.issn.1000-7229.2022.02.007

电力建设 ›› 2022, Vol. 43 ›› Issue (2): 54-62.doi: 10.12204/j.issn.1000-7229.2022.02.007

考虑多种终端配置的中低压配电网供电可靠性协同评估

刘艳茹¹(), 刘洪²(), 谷毅³(), 韩柳¹(), 滑雪娇²()

1.国网经济技术研究院有限公司,北京市 102209
2.智能电网教育部重点实验室(天津大学),天津市 300072
3.国家电网有限公司,北京市 100031

收稿日期:2021-08-17 出版日期:2022-02-01 发布日期:2022-03-24
通讯作者: 刘艳茹 E-mail:liuyanru@chinsperi.sgcc.com.cn;liuhong@tju.edu.cn;yi-gu@sgcc.com.cn;hanliu@chinasperi.sgcc.com.cn;hhhuaxj@tju.edu.cn
作者简介:刘洪(1979),男,博士,教授,主要研究方向为智能配电系统及综合能源系统的规划与评估,E-mail: liuhong@tju.edu.cn;
谷毅(1975),男,博士,教授级高级工程师,主要研究方向为配电网规划,E-mail: yi-gu@sgcc.com.cn;
韩柳(1975),女,硕士,教授级高级工程师,主要研究方向为智能化规划,E-mail: hanliu@chinasperi.sgcc.com.cn;
滑雪娇(1997),女,硕士研究生,主要研究方向为配电网规划和电力系统可靠性,E-mail: hhhuaxj@tju.edu.cn。
基金资助:
国家电网公司科技项目“面向深度感知与业务协同的配电物联网规划设计及评估技术研究”(5106-202056130A-0-0-00)

Cooperative Evaluation of Power Supply Reliability of Medium and Low Voltage Distribution Network Considering Multiple Terminal Configurations

LIU Yanru¹(), LIU Hong²(), GU Yi³(), HAN Liu¹(), HUA Xuejiao²()

1. State Grid Economics and Technology Research Institute Co., Ltd., Beijing 102209,China
2. Key Laboratory of Smart Grid of Ministry of Education( Tianjin University),Tianjin 300072,China
3. State Grid Corporation of China, Beijing 100031, China

Received:2021-08-17 Online:2022-02-01 Published:2022-03-24
Contact: LIU Yanru E-mail:liuyanru@chinsperi.sgcc.com.cn;liuhong@tju.edu.cn;yi-gu@sgcc.com.cn;hanliu@chinasperi.sgcc.com.cn;hhhuaxj@tju.edu.cn
Supported by:
State Grid Corporation of China Research Program(5106-202056130A-0-0-00)

摘要/Abstract

摘要：

针对现有配电网可靠性评估方法无法整体评估到低压,对配电终端类型考虑不全面的问题,提出一种考虑多种终端配置的中低压可靠性协同评估方法。首先,从评估对象、评估指标以及评估框架三方面说明中低压配电网可靠性协同评估的基本思路;其次,结合馈线分区理念,考虑各类终端对供电可靠性的影响,建立基于多模块智能终端设备配置的故障查找与影响分析逻辑;再次,结合所提故障分析逻辑,提出不同电压等级协同分析的中低压蒙特卡洛可靠性评估方法;最后,以IEEE RBTS BUS-2系统为例,对不同场景下的系统可靠性水平进行了对比分析,验证了所述方法的有效性。

关键词: 配电网可靠性, 协同评估, 配电自动化, 低压配电网

Abstract:

Aiming at the problems that the existing reliability evaluation methods of distribution network cannot fully evaluate low voltage system and the types of distribution terminals are not comprehensively considered, a collaborative evaluation method for medium and low voltage reliability considering multiple terminal configurations is proposed. Firstly, the basic idea of reliability collaborative evaluation of medium and low voltage distribution network is explained from three aspects: evaluation object, evaluation index and evaluation framework. Secondly, combining with the concept of feeder partition and considering the influence of various terminals on power supply reliability, the fault finding and impact analysis logic based on multi-module intelligent terminal device configuration is established. Thirdly, combined with the proposed fault analysis logic, a low- and medium-voltage Monte Carlo reliability assessment method based on collaborative analysis of different voltage levels is proposed. Finally, taking the IEEE RBTS BUS-2 system as an example, a comparative analysis of the system reliability levels in different scenarios is carried out to verify the effectiveness of the method.

Key words: distribution network reliability, collaborative evaluation, distribution automation, low voltage distribution network

中图分类号:

TM712

刘艳茹, 刘洪, 谷毅, 韩柳, 滑雪娇. 考虑多种终端配置的中低压配电网供电可靠性协同评估[J]. 电力建设, 2022, 43(2): 54-62.

LIU Yanru, LIU Hong, GU Yi, HAN Liu, HUA Xuejiao. Cooperative Evaluation of Power Supply Reliability of Medium and Low Voltage Distribution Network Considering Multiple Terminal Configurations[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(2): 54-62.

图/表 14

图1 中低压配电网可靠性协同评估框架

Fig.1 Collaborative reliability evaluation framework for medium and low voltage distribution networks

图2 含多模块智能终端设备的馈线分区

Fig.2 Feeder partitions containing multi-module intelligent terminal devices

图3 馈线段故障后的故障影响查找与分析流程

Fig.3 Flowchart for finding and analyzing the impact of feeder segment fault

表1 故障①—⑥下的最小隔离区区域类型

Table 1 Type of minimum isolation area when fault point is at ①—⑥

图4 配置多种终端的IEEE RBTS BUS-2 配电系统

Fig.4 IEEE RBTS BUS-2 power distribution system with multiple terminals

表2 元件可靠性参数

Table 2 Component reliability parameters

表3 用户基础参数

Table 3 User basic parameters

图5 典型低压配电网结构

Fig.5 Structure of typical low-voltage distribution network

表4 2种场景下系统可靠性指标

Table 4 System reliability indicators in 2 scenarios

表5 400 V母线可靠性参数

Table 5 Reliability parameters of the 400 V bus

表6 低压台区可靠性参数

Table 6 Reliability parameters of low-voltage station

表7 中低压顺序评估与协同评估可靠性指标计算结果

Table 7 Reliability index calculation results of sequential evaluation and collaborative evaluation for medium and low voltage

表8 4种场景下系统可靠性指标与年总费用

Table 8 System reliability indicators and total annual costs in 4 scenarios

表9 接入光伏后前后馈线F1可靠性指标

Table 9 Reliability index of feeder 1 befor and after connecting photovoltaic

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考虑多种终端配置的中低压配电网供电可靠性协同评估

Cooperative Evaluation of Power Supply Reliability of Medium and Low Voltage Distribution Network Considering Multiple Terminal Configurations

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