考虑电网损耗和电压稳定性的配电网综合节能规划算法

Comprehensive energy-saving planning algorithm for distribution networks considering power grid losses and voltage stability

摘要

针对配电网节能规划中电网损耗与电压稳定性挑战日益凸显的问题,研究旨在提出一种能够兼顾降低网损与提升电压稳定性的综合节能规划算法。通过优化配电网的有功和无功功率协调控制,减少能量损耗并改善电压分布,以提高能源利用效率和供电可靠性。研究构建了以有功损耗最小化和电压偏差最小化为目标的储能优化模型,进而设计了一种综合考虑有功无功协调优化、并增强多种约束条件的节能规划算法。结果显示通过设计算法进行节能规划其控制误差的最小值和最大值分别为0.12、0.15证明了其控制功率输出方面稳定性和精确率较高。不同的干扰项下通过设计算法协调规划所耗费的时间范围为3~8 s证明其提高了配电网协调规划的效率。以上结果证明了设计算法的有效性对于实现可持续能源发展和节能减排具有积极的促进作用。

Abstract

Addressing the increasingly prominent challenges of grid losses and voltage stability in distribution network energy-saving planning, this study aims to propose a comprehensive energy-saving planning algorithm that can simultaneously reduce grid losses and improve voltage stability. By optimizing the coordinated control of active and reactive power in the distribution network, energy losses are reduced and voltage distribution is improved, thereby enhancing energy utilization efficiency and power supply reliability. This study constructs an energy storage optimization model with the objectives of minimizing active power losses and voltage deviations, and then designs an energy-saving planning algorithm that comprehensively considers the coordinated optimization of active and reactive power and enhances various constraints. The results show that the minimum and maximum control errors of energy-saving planning through the design algorithm are 0.12 and 0.15, respectively, proving its high stability and accuracy in controlling power output. Under different interference conditions, the time range for coordinating planning through the design algorithm is 3 s-8 s, proving that it improves the efficiency of distribution network coordination planning. The above results demonstrate the effectiveness of the design algorithm, which has a positive promoting effect on achieving sustainable energy development and energy conservation and emission reduction.

关键词

配电网 / 电网损耗 / 电压稳定性 / 节能规划 / 模型 / 算法

Key words

distribution network / power grid losses / voltage stability / energy saving planning / model / algorithm

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基金资助

江苏省国网科技项目(J2023100)