Optimal selection of high voltage transmission connected to island systems

2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS) Pub Date : 2016-10-01 DOI:10.1109/PMAPS.2016.7764127

Xiaoxi Li, Xin Zhang, Yunting Song, Wei Tang, Yinshun Wang, Jingjing Wang, Xiaofei Hu, Cheng Yang

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Abstract

The development of high voltage technology provides technical conditions for the transmission of offshore new energy, but it is necessary to consider the operation status of power grid when we decide the way of grid connection. This paper focuses on the stability of the system and evaluates three access form - the high voltage alternating current (HVAC), traditional direct current (DC) and flexible DC transmission. Evaluation index and evaluation system are established. The evaluation index selects indicators from three aspects of static security, transient stability and short circuit capacity. Evaluation system is based on math method. It gets the indicators' weight through the game theory and uses intuitionistic fuzzy theory combining strict fitting degree to get the optimization choice. The theoretical analysis is based on the actual island model, evaluated through BPA simulations. Simulation results are presented to validate the expected performance of the proposed evaluation method.

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孤岛系统高压输电的优化选择

高压技术的发展为海上新能源的传输提供了技术条件，但在确定并网方式时需要考虑电网的运行状况。本文着重分析了系统的稳定性，并对高压交流电(HVAC)、传统直流输电(DC)和柔性直流输电三种接入方式进行了评价。建立了评价指标和评价体系。评价指标从静态安全性、暂态稳定性和短路容量三个方面选取指标。评价体系基于数学方法。通过博弈论得到各指标的权重，并结合严格拟合度的直觉模糊理论得到最优选择。理论分析基于实际岛屿模型，并通过BPA模拟进行评估。仿真结果验证了所提评价方法的预期性能。

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2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)

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