含复杂电源结构省级电力系统电力电量平衡方法
Power Balance Method of Provincial Power System with Complex Generation Structure
李程昊 1张佳伟 2姚德贵 1李晓萌 1葛晟 3吕泉3
作者信息
- 1. 国网河南省电力公司电力科学研究院,郑州 450052
- 2. 国网山东省电力公司东营供电公司,东营 257100
- 3. 大连理工大学电气工程学院,大连 116024
- 折叠
摘要
随着风电、光伏大规模接入电力系统,为计及其出力的不确定性,需要以年为尺度、小时为颗粒度进行电力电量平衡分析.以含复杂电源结构、内部断面限制、外部交直流受电的省级电力系统为对象,提出了一种新的电力电量平衡分析方法.该方法以日周期进行滚动平衡分析,针对特定日:通过对各分区同类电源进行聚合以简化问题、降低求解规模;通过构建火电开机优化模型以在考虑断面限制下以均衡开机为原则确定各分区火电开机容量;通过合理设计优化调度模型以在满足不同分区同类电源均衡调度、同一分区不同种类电源顺序调用原则下实现电力平衡计算.算例以实际省级电力系统数据为基础,验证了该方法的有效性、合理性、快速性.
Abstract
With the large-scale integration of wind and photovoltaic power into power system,it is necessary to perform power balance analysis with annual scale and hourly granularity for taking into account their uncertainty.A new power balance analysis method is proposed in terms of a provincial power system containing a complex power source structure,internal section limitation,and external AC/DC tie lines.The method is based on a rolling balance analysis with a daily cycle.For a specific day,the problem is simplified and the solution scale is reduced by dynamically aggregating similar power sources in each partition.By constructing a thermal power start-up optimization model,the thermal power start-up capacity of each partition is determined based on the principle of balanced start-up under the consideration of section con-straints.By reasonably designing an optimal scheduling model,power balance calculation is achieved while meeting the principles of balanced scheduling of similar power sources in different zones and sequential calling of different types of power sources in the same zone.The example is based on actual provincial power system data and verifies the effective-ness,rationality and rapidity of the method.
关键词
电力电量平衡/复杂电源结构/断面约束/电源聚合/逐日滚动/分区均衡/电源顺序调用Key words
power balance/complex power source structure/transmission section constraint/aggregation of power source/daily rolling/partition equalization/sequential scheduling of power source引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据