中低压配电网电压控制研究
关键词 中低压配电网 粒子群算法 电压综合控制
毕业论文设计说明书外文摘要
Title Voltage Control Research of the medium and low voltage distribution network
Abstract
Summed up the voltage regulation of medium and low voltage distribution network .Studied the forward and backward substitution method to solve the power flow calculation of distribution network .Discussed the voltage regulating means of distribution network, including the replacement of wires, reactive power compensation, transformer tap adjusting and installation of line voltage regulators. In order to consider the technical and economic benefits of these methods, established the voltage integrated optimization mode with the goal of shortest payback period and minimum voltage deviation. And used improved particle swarm algorithm to solve the mathematical model. Finally, the voltage integrated optimization method was applied to a practical distribution network. The results show that the method is reasonable and effective. After the voltage regulation, voltage indicator of nodes can meet the requirements and power loss of the system has significantly reduced.
Keywords Medium and low voltage distribution network
Particle Swarm Optimization Voltage control
目 次
1 引言 1
1.1 研究的背景和意义 1
1.2 国内外研究现状 1
1.3 本文主要研究工作 3
2 中低压配电网调压原理 4
2.1 中低压配电网简介 4
2.2 中低压配电网调压原理 4
3 中低压配电网潮流计算研究 6
3.1 配电网前推回代潮流计算简介 6
3.2 前推回代法实现步骤 6
3.3 实例计算 8
4 中低压配电网的调压手段 11
4.1 改变变电站低压侧母线电压调压 11
4.2 更换导线调压 11
4.3 无功补偿调压 12
4.3.1 无功功率与电压调整的关系 12
4.3.2 无功功率就地补偿的重要性 13
4.3.3 配电网无功补偿的方式 14
4.3.4 配电网无功补偿的任务 15
4.4 改变配电变压器分接头调压 19
4.5 10kV线路调压器（SVR）调压 20
4.5.1 馈线自动调压器SVR简介： 20
4.5.2 调压器的安装和选型 20
4.5.3 调压器实例应用 21
5 电压综合控制的数学模型 22
5.1 电压综合控制模型概述 22
5.2 电压综合控制模型的目标函数 22