断面安全约束下发电可行域实用分析方法

doi:10.11930/j.issn.1004-9649.202001060

中国电力 ›› 2020, Vol. 53 ›› Issue (12): 183-189.DOI: 10.11930/j.issn.1004-9649.202001060

断面安全约束下发电可行域实用分析方法

周星宇¹, 潘学萍¹, 王正风², 陈得治³

1. 河海大学能源与电气学院，江苏南京 211100;
2. 国网安徽省电力有限公司，安徽合肥 230061;
3. 中国电力科学研究院有限公司，北京 100192

收稿日期:2020-01-13 修回日期:2020-06-12 发布日期:2020-12-16
作者简介:周星宇(1995—)，男，硕士研究生，从事电力系统分析与运行研究，E-mail：zxy2416469670@163.com;潘学萍(1972—)，女，通信作者，教授，博士生导师，从事新能源电力系统建模及分析研究，E-mail：xueping_pan@hhu.edu.cn;王正风(1976—)，男，博士，高级工程师(教授级)，从事调度计划工作，E-mail：wangzf0016@ah.sgcc.com.cn
基金资助:
国家自然科学基金资助项目(含主动负荷的综合负荷在线建模，51837004)

A Practical Method for Analyzing Feasible Generation Region under Security Constraint of Key Transmission Line Section

ZHOU Xingyu¹, PAN Xueping¹, WANG Zhengfeng², CHEN Dezhi³

1. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;
2. State Grid Anhui Electric Power Company, Hefei 230061, China;
3. China Electric Power Research Institute, Beijing 100192, China

Received:2020-01-13 Revised:2020-06-12 Published:2020-12-16
Supported by:
This work is supported by National Natural Science Foundation of China (Basic Research on the On-line Modeling of the Synthesis Electric Load Containing Active Loads, No.51837004)

摘要/Abstract

摘要： 针对市场环境下调度计划月度安全校核存在时间跨度大、负荷以及新能源出力预测精度差、交易电量的不确定程度高等问题，提出构建发电可行域的工程实用方法。首先，基于各发电机出力相对于关键断面的有功灵敏度，结合机组的地理位置，对全网机组进行分群；然后，提出构建发电可行域的基态潮流确定方法；在此基础上，以主导发电机群的总出力为横坐标，以系统总负荷为纵坐标，构建系统在不同负荷水平下的主导发电机群发电可行域；最后，根据系统运行方式对发电可行域进行在线修正。以某省级电网为例，验证所提方法的可行性。

关键词: 调度计划, 月度安全校核, 关键断面, 发电可行域, 灵敏度

Abstract: Under power market circumstances, the monthly safety check of dispatch schedule faces many problems, such as long time span, poor forecast accuracy of power load and new energy power, and high uncertainty of trading energy. Therefore, a practical constructing method for feasible generation region is proposed in this paper. Firstly, the generator units in the whole grid are clustered based on the active power sensitivity of each generator unit relative to the key transmission line, and combined with the unit's geographic location. Secondly, the base power flow determination method for building feasible generation region is proposed. Furthermore, the feasible generation region of leading generator cluster under different load levels is built with the total active power output of leading cluster and the total load set as the horizontal coordinates and vertical coordinates, respectively. Finally, the feasible generation region is revised on-line according the power system’s real operation condition. A provincial power system is used to validate the feasibility of the proposed method in this paper.

Key words: dispatch schedule, monthly security check, key transmission line section, feasible generation region, sensitivity

周星宇, 潘学萍, 王正风, 陈得治. 断面安全约束下发电可行域实用分析方法[J]. 中国电力, 2020, 53(12): 183-189.

ZHOU Xingyu, PAN Xueping, WANG Zhengfeng, CHEN Dezhi. A Practical Method for Analyzing Feasible Generation Region under Security Constraint of Key Transmission Line Section[J]. Electric Power, 2020, 53(12): 183-189.

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断面安全约束下发电可行域实用分析方法

A Practical Method for Analyzing Feasible Generation Region under Security Constraint of Key Transmission Line Section

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A Practical Method for Analyzing Feasible Generation Region under Security Constraint of Key Transmission Line Section

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