基于线路保护反时限特性的含光伏发电系统风险备用优化模型

doi:10.12096/j.2096-4528.pgt.19006

发电技术 ›› 2020, Vol. 41 ›› Issue (4): 437-446.DOI: 10.12096/j.2096-4528.pgt.19006

基于线路保护反时限特性的含光伏发电系统风险备用优化模型

杨延勇¹(),许强¹,李竹²,候承昊¹,杨秀菊¹,余碧凯^2,*(),雷霞²()

¹ 国网山东省电力公司聊城供电公司, 山东省聊城市 252000
² 西华大学电气与电子信息学院, 四川省成都市 610039

收稿日期:2019-01-10 出版日期:2020-08-31 发布日期:2020-09-01
通讯作者: 余碧凯
作者简介:杨延勇, (1980),男,高级工程师,从事电力规划、评审工作, 982348373@qq.com|雷霞, (1973),女,博士,教授,硕士生导师,主要研究方向为电网弹性、电力市场、电网规划和调度, 274757067@qq.com
基金资助:
国网山东省电力公司科技项目(2018A-070)

Optimal Risk Reserve Dispatch Model Incorporating Photovoltaic Power Based on Inverse-time Line Protection

Yanyong YANG¹(),Qiang XU¹,Zhu LI²,Chenghao HOU¹,Xiuju YANG¹,Bikai YU^2,*(),Xia LEI²()

¹ Liaocheng Power Supply Company, State Grid Shandong Electric Power Company, Liaocheng 252000, Shandong Province, China
² College of Electrical and Electronic Information, Xihua University, Chengdu 610039, Sichuan Province, China

Received:2019-01-10 Published:2020-08-31 Online:2020-09-01
Contact: Bikai YU
Supported by:
Science and Technology Project of State Grid Shandong Electric Power Company(2018A-070)

摘要/Abstract

摘要：

针对光伏并网后容易引起系统的不安全运行，传统的备用配置方法经济性较差的情况，为保证系统在弃光最小化情况下安全运行的同时提高经济性，引入失负荷及弃光风险指标，建立了光伏并网后不同场景下的备用优化模型。该模型以最小化发电成本和备用成本为目标函数，功率平衡、机组特性及可中断负荷等为约束条件，利用线路保护反时限特性将线路潮流约束转化为对应时间尺度的热稳定极限值，综合求解含光伏发电系统中的各种不确定性场景下，线路保护反时限特性所对应的不同响应速度备用优化调度模型。含光伏系统的IEEE 6机30节点系统算例验证了模型的合理性及方法的有效性。

关键词: 光伏并网, 反时限特性, 备用配置, 风险指标, 热稳定极限值

Abstract:

Aiming at the insecurity of photovoltaic (PV) grid-connected system and the high cost of traditional reserve configuration, a reserve optimization model in different scenes of the system was established to improve security and economy. The risks of loss load and solar power curtailment were introduced in the model. The objective function of the model was to minimize the generation and reserve costs within the constraints of power balance, generation unit characteristics and interruptible load. The inverse-time characteristic of line protection was utilized to transform the power flow constraints into the thermal stability limit. The optimal reserve dispatch model with different responding speed of PV grid-connected system was obtained. The rationality of the model and the effectiveness of the method were verified by an IEEE 30 test system with PV.

Key words: PV grid-connected, inverse-time characteristic, reserve configuration, risk indicator, thermal stability limit

中图分类号:

TM615

杨延勇,许强,李竹,候承昊,杨秀菊,余碧凯,雷霞. 基于线路保护反时限特性的含光伏发电系统风险备用优化模型[J]. 发电技术, 2020, 41(4): 437-446.

Yanyong YANG,Qiang XU,Zhu LI,Chenghao HOU,Xiuju YANG,Bikai YU,Xia LEI. Optimal Risk Reserve Dispatch Model Incorporating Photovoltaic Power Based on Inverse-time Line Protection[J]. Power Generation Technology, 2020, 41(4): 437-446.

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基于线路保护反时限特性的含光伏发电系统风险备用优化模型

Optimal Risk Reserve Dispatch Model Incorporating Photovoltaic Power Based on Inverse-time Line Protection

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