Coordination and Consumption Method of Multi-regional Interconnected Power System with Wind Power

2021 China International Conference on Electricity Distribution (CICED) Pub Date : 2021-04-07 DOI:10.1109/CICED50259.2021.9556738

Jingru Yan, J. Zhu, Ran Li, Tianying Chen, Xueqing Zhou, Ze Li

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引用次数: 1

Abstract

New energy which is low-cost, clean and environmentally-friendly has been widely used due to the rapid increase of energy demand and environmental pollution caused by traditional fossil energy. However, the volatility, randomness and intermittence of distributed energy bring great challenges to the power system. This paper proposed a multi-scenarios decentralized coordination method of multi-regional interconnected power system with wind power, which can achieve the purpose of multi-regional coordinated consumption of wind power in the power grid. Firstly, the economic dispatch model of certain scenario under wind power forecasting scenario was established, and the analytical target cascading method was used for decentralized coordination and optimization of the model. Secondly, to modify and optimize the the economic dispatch model of certain scenario, the uncertain scenarios of wind power were generated by multi-scenarios method, which formed the economic dispatch model of error scenarios. Finally, the optimal generation scheduling scheme of the power network was calculated by the cyclic iteration of decentralized coordination optimization and error correction optimization. The example results showed that proposed coordination and consumption method of multi-regional interconnected power system with wind power can solve the problems of uncertainty of wind power and the large-scale wind power consumption effectively.

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风电多区域互联电力系统的协调与消纳方法

由于能源需求的快速增长和传统化石能源造成的环境污染，低成本、清洁、环保的新能源得到了广泛的应用。然而，分布式能源的波动性、随机性和间歇性给电力系统带来了巨大的挑战。本文提出了一种多区域风电互联电力系统的多场景分散协调方法，可实现电网中风电多区域协调消纳的目的。首先，建立风电预测情景下某情景的经济调度模型，采用目标级联分析方法对模型进行分散协调和优化;其次，对确定情景下的经济调度模型进行修正和优化，采用多情景法生成风电的不确定情景，形成误差情景下的经济调度模型;最后，通过分散协调优化和纠错优化的循环迭代，计算出电网的最优发电调度方案。算例结果表明，所提出的多区域风电互联电力系统协同消纳方法能有效解决风电不确定性和大规模风电消纳问题。

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来源期刊

2021 China International Conference on Electricity Distribution (CICED)

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