Analysis of New Energy Accommodation Capacity of Regional Power Grid with Energy Storage Based on Improved Typical Daily Method

2022 7th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2022-04-01 DOI:10.1109/ACPEE53904.2022.9783846

Xinwei Sun, Bo Zhou, Tianwen Zheng, Wei Wei, Yuting Tian, Lei Pan

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Abstract

The grid-connection of new energy (NE) except hydropower into the power grid shows a rapid development trend, under the goal of "double carbon". In the future, NE will be the major power supply of the power system, and it’s of great significance to accurately assess the regional power grid to the NE accommodation capacity. Therefore, an analysis method of the NE accommodation capacity of the regional power grid with energy storage (ES) based on the typical daily is proposed. Firstly, based on the impact of NE and grid structural features in the regional power grid, the main factors affecting NE accommodation capacity of the regional power grid with ES are analyzed, and the principle of ES to enhance the NE accommodation of regional power grid is analyzed. Secondly, the mathematical model of evaluating the NE accommodation capacity of the regional power grid is built. Finally, for an actual regional power grid, the NE accommodation capacity of the regional power grid under different scenarios is evaluated to substantiate the availability of the method proposed in this paper.

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基于改进典型日法的区域电网储能新能源容纳能力分析

在“双碳”目标下，除水电外的新能源并网呈快速发展趋势。未来，网元将成为电力系统的主要供电电源，准确评估区域电网对网元的容纳能力具有重要意义。为此，提出了一种基于典型日的区域电网储能容网容量分析方法。首先，基于网元对区域电网的影响和电网结构特点，分析了ES对区域电网网元容纳能力的主要影响因素，分析了ES增强区域电网网元容纳能力的原理。其次，建立了评价区域电网NE容纳能力的数学模型;最后，以一个实际的区域电网为例，对不同情景下区域电网的NE容纳能力进行了评估，以验证本文方法的有效性。

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2022 7th Asia Conference on Power and Electrical Engineering (ACPEE)

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