基于短路容量量化评估的大规模新能源直流送端电网运行方式优化方法

TM721.1; 直流送端电网中需保证一定数量的常规机组提供短路容量以平抑电压波动,而开机容量过大将挤占新能源消纳空间,为电网运行方式优化带来了难题.对此,基于支路潮流法揭示了暂态过电压与直流母线短路容量的关系,推导出保证一定暂态过电压水平的最小母线短路容量的量化算法,提出了利用常规机组短路电流权重指数作为考虑短路容量约束的机组优化组合权重因子,给出了常规机组开机方式与各条直流短路容量需求之间的量化关联关系.基于该方法建立了考虑直流近区短路容量约束的机组组合优化模型,采用机组组合优化算法统筹考虑各种约束,优化机组开机方式,在保证安全稳定运行的基础上实现了新能源最大消纳.最后以西北某省级电网为例...

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Published in电力自动化设备 Vol. 41; no. 12; pp. 123 - 129
Main Authors 牛拴保, 柯贤波, 任冲, 霍超, 王智伟, 张钢, 卫琳
Format Journal Article
LanguageChinese
Published 国家电网公司西北分部,陕西西安710048%国家电网公司西北分部,陕西西安710048 10.12.2021
西安交通大学电气工程学院,陕西西安710079
Subjects
特高压直流;暂态过电压;短路容量;机组组合;优化
Online AccessGet full text
ISSN1006-6047
DOI10.16081/j.epae.202108016

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Abstract TM721.1; 直流送端电网中需保证一定数量的常规机组提供短路容量以平抑电压波动,而开机容量过大将挤占新能源消纳空间,为电网运行方式优化带来了难题.对此,基于支路潮流法揭示了暂态过电压与直流母线短路容量的关系,推导出保证一定暂态过电压水平的最小母线短路容量的量化算法,提出了利用常规机组短路电流权重指数作为考虑短路容量约束的机组优化组合权重因子,给出了常规机组开机方式与各条直流短路容量需求之间的量化关联关系.基于该方法建立了考虑直流近区短路容量约束的机组组合优化模型,采用机组组合优化算法统筹考虑各种约束,优化机组开机方式,在保证安全稳定运行的基础上实现了新能源最大消纳.最后以西北某省级电网为例验证了所提方法的有效性及优越性.
AbstractList TM721.1; 直流送端电网中需保证一定数量的常规机组提供短路容量以平抑电压波动,而开机容量过大将挤占新能源消纳空间,为电网运行方式优化带来了难题.对此,基于支路潮流法揭示了暂态过电压与直流母线短路容量的关系,推导出保证一定暂态过电压水平的最小母线短路容量的量化算法,提出了利用常规机组短路电流权重指数作为考虑短路容量约束的机组优化组合权重因子,给出了常规机组开机方式与各条直流短路容量需求之间的量化关联关系.基于该方法建立了考虑直流近区短路容量约束的机组组合优化模型,采用机组组合优化算法统筹考虑各种约束,优化机组开机方式,在保证安全稳定运行的基础上实现了新能源最大消纳.最后以西北某省级电网为例验证了所提方法的有效性及优越性.
Author 卫琳
柯贤波
霍超
牛拴保
任冲
王智伟
张钢
AuthorAffiliation 西安交通大学电气工程学院,陕西西安710079;国家电网公司西北分部,陕西西安710048%国家电网公司西北分部,陕西西安710048
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KE Xianbo
ZHANG Gang
HUO Chao
NIU Shuanbao
WEI Lin
WANG Zhiwei
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Title 基于短路容量量化评估的大规模新能源直流送端电网运行方式优化方法
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