Fixed Cost Allocation of Distribution Network based on Risk induced by New Energy Access

2023 IEEE International Conference on Power Science and Technology (ICPST) Pub Date : 2023-05-05 DOI:10.1109/ICPST56889.2023.10165464

Wenjuan Niu, Guiyuan Xue, Chen Chen, Xiaojun Zhu, Zheng Xu, Jian Tan, Hao Ming

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Abstract

The installed capacity of wind power station and photovoltaic power station increases rapidly worldwide, which not only alleviates the energy crisis but also brings great challenges to the distribution network. This paper proposes a fixed cost allocation method for distribution network considering new energy access risk. Firstly, the state model and output probability model of each component of distribution network are established. Based on the non-sequential Monte Carlo simulation method, the probabilistic power flow calculation is carried out, and the node voltage-limited risk and active power-limited risk are obtained as the risk indexes of distribution network. The entropy weight method is used to calculate the weight of each risk index, and the comprehensive risk evaluation index is obtained. Finally, a model of equitable distribution of fixed cost among all responsible parties is established. Taking IEEE 14-bus system as an example, the risks and costs caused by different subjects of new energy are analyzed, so as to realize effective risk measurement and fair cost distribution to a greater extent.

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基于新能源接入风险的配电网固定成本分配

风电和光伏电站的装机容量在全球范围内迅速增长，在缓解能源危机的同时，也给配电网带来了巨大的挑战。本文提出了一种考虑新能源接入风险的配电网固定成本分摊方法。首先，建立了配电网各组成部分的状态模型和输出概率模型;基于非序贯蒙特卡罗模拟方法，进行概率潮流计算，得到节点限电压风险和有功限功率风险作为配电网的风险指标。采用熵权法计算各风险指标的权重，得到综合风险评价指标。最后，建立了固定成本在各责任主体之间的公平分配模型。以IEEE 14总线系统为例，分析新能源不同主体所带来的风险和成本，从而在更大程度上实现有效的风险计量和公平的成本分配。

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2023 IEEE International Conference on Power Science and Technology (ICPST)

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