计及灵活性不足风险的配电网智能软开关与多类型共享储能协调优化

发电技术

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计及灵活性不足风险的配电网智能软开关与多类型共享储能协调优化

王杰¹，徐立军¹，李笑竹²，樊小朝¹，古丽扎提∙海拉提¹，王维庆²

1．新疆工程学院，新疆维吾尔自治区乌鲁木齐市 830023；2．新疆大学电气工程学院，新疆维吾尔自治区乌鲁木齐市 830017

Coordinated Optimization of Soft Open Point and Multi-type Shared Energy Storage in Distribution Network Considering Flexibility Deficiency Risk

WANG Jie¹，XU Lijun¹，Li Xiaozhu²，FAN Xiaochao¹，AIHAITI∙Gulizati¹，WANG Weiqing²

1. Xinjiang Institute of Engineering, Urumqi 830023, Xinjiang Uygur Autonomous Region, China；2. Xinjiang University，Urumqi 830017. Xinjiang Uygur Autonomous Region, China

摘要/Abstract

摘要：

【目的】为解决高渗透率新能源的接入造成新型配电网运行安全的问题，联合智能软开关、多类型共享储能多种灵活性设备，提出了计及灵活性不足风险的配电网智能软开关与多类型共享储能协调优化运行方法。【方法】首先，阐述了智能软开关与多类型共享储能灵活性资源的灵活调节机理，构建了基于条件风险价值的灵活性不足风险指标。其次，综合考虑灵活性、安全性及经济性指标，建立了新型配电网智能软开关与多类型共享储能协调优化模型。最后在改进的IEEE 33节点系统对提出的方法进行测试。【结果】提出的计及灵活性不足风险的新型配电网智能软开关与多类型共享储能的协调优化方法，能够充分应对新能源出力的波动性和负荷需求的随机性，有效降低新型配电网的有功损耗，提高新型配电网运行的灵活性、安全性与经济性。【结论】所提出的灵活性优化模型将为新型配电系统灵活调度提供较高的实际参考价值。

关键词:

"> 新能源, 新型配电网, 智能软开关, 多类型共享储能, 灵活性, 条件风险价值

Abstract: [Objectives] To solve the problem of safe operation of the new distribution network caused by the access of new energy sources with high penetration, and optimize the operation of multiple flexible devices combining soft open point and multi-type shared energy storage, the paper proposes a coordinated optimization method for soft open point and multi-type shared energy storage devices with consideration of the flexibility deficiency risk. [Methods] Firstly, the flexible regulation mechanism of soft open point and multi-type shared energy storage flexible resources is described, and the index of flexibility deficiency risk based on conditional value-at-risk is established. Secondly, considering flexibility, safety, and economic indexes, a coordinated optimization model for soft open point and multi-type shared energy storage devices in the new distribution network is established. Finally, the proposed method is solved on the improved 33-bus system to verify its effectiveness. [Results] The proposed coordinated optimization method for soft open point and multi-type shared energy storage devices considering the flexibility deficiency risk can effectively deal with the fluctuations of new energy output and the randomness of load demand, reduce active power loss and voltage violation risk of the new distribution network, and improve the flexibility, safety, and economic efficiency of the network operation. [Conclusions] The proposed flexibility optimization model will provide high practical reference value for flexible scheduling of new distribution systems.

Key words:

text-align:justify, "> new energy, new distribution network, soft open point, multi-type shared energy storage, flexibility, conditional value-at-risk

王杰, 徐立军, 李笑竹, 樊小朝, 古丽扎提∙海拉提, 王维庆 . 计及灵活性不足风险的配电网智能软开关与多类型共享储能协调优化[J]. 发电技术.

WANG Jie, XU Lijun, Li Xiaozhu, FAN Xiaochao, AIHAITI∙Gulizati, WANG Weiqing. Coordinated Optimization of Soft Open Point and Multi-type Shared Energy Storage in Distribution Network Considering Flexibility Deficiency Risk[J]. Power Generation Technology.

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