
基本信息:
- 专利标题: 基于短路电流裕度的双馈风电场最大可接入容量确定方法
- 专利标题(英):Method for determining maximum accessible capacity of doubly-fed wind farm based on short-circuit current margin
- 申请号:CN201710875869.4 申请日:2017-09-25
- 公开(公告)号:CN109560568A 公开(公告)日:2019-04-02
- 发明人: 李媛媛 , 朱岸明 , 张志刚 , 李晓婷 , 张凌康 , 贾宏刚 , 张鑫 , 薛谦谦 , 王明 , 宋云亭 , 白露 , 吉平 , 罗利 , 李晓珺 , 王勇 , 邱丽萍
- 申请人: 中国电力科学研究院 , 国网陕西省电力公司经济技术研究院 , 国网甘肃省电力公司嘉峪关供电公司 , 国家电网公司
- 申请人地址: 北京市海淀区清河小营东路15号
- 专利权人: 中国电力科学研究院,国网陕西省电力公司经济技术研究院,国网甘肃省电力公司嘉峪关供电公司,国家电网公司
- 当前专利权人: 中国电力科学研究院,国网陕西省电力公司经济技术研究院,国网甘肃省电力公司嘉峪关供电公司,国家电网公司
- 当前专利权人地址: 北京市海淀区清河小营东路15号
- 代理机构: 北京安博达知识产权代理有限公司
- 代理人: 徐国文
- 主分类号: H02J3/38
- IPC分类号: H02J3/38 ; H02J3/18
The present invention provides a method for determining a maximum accessible capacity of a doubly-fed wind farm based on short-circuit current margin. The method comprises the steps of: determining whether a short-circuit current margin value of each bus in a preset planning scheme is smaller than a short-circuit current margin index or not; if yes, according to the unit step size, increasing thegrid-connected capacity of the wind farm in the preset planning scheme; otherwise, optimizing the preset planning scheme by using the connection mode of the first series and then the grid connection for each wind farm, and determining the maximum accessible capacity of the doubly-fed wind farm after optimization. The technical solution provided by the invention can easily and quickly determine therequirements of the centralized grid-connected points for the installed wind power installation scale to avoid the problem of short-circuit current exceeding the standard of the grid-connected pointafter large-scale wind power centralized access, is applicable for safe and stable assessment of a large-scale power system, has good computability and wide adaptability, and can be also used as a main analysis tool for dispatching operation and planning and design departments.
公开/授权文献:
- CN109560568B 基于短路电流裕度的双馈风电场最大可接入容量确定方法 公开/授权日:2022-01-28
IPC结构图谱:
H | 电学 |
--H02 | 发电、变电或配电 |
----H02J | 供电或配电的电路装置或系统;电能存储系统 |
------H02J3/00 | 交流干线或交流配电网络的电路装置 |
--------H02J3/38 | .由两个或两个以上发电机、变换器或变压器对1个网络并联馈电的装置 |