
基本信息:
- 专利标题: 一种高低压复合故障下直驱机组穿越方法
- 专利标题(英):Ride-through method for direct-drive unit under high-low-voltage compound faults
- 申请号:CN201510066619.7 申请日:2015-02-09
- 公开(公告)号:CN104638674A 公开(公告)日:2015-05-20
- 发明人: 刘海舰 , 肖鹏 , 刘刚 , 孙健 , 梁燕 , 高亚春 , 朱斯 , 马步云 , 程林志 , 杨杨 , 史航 , 卢仁宝
- 申请人: 许继集团有限公司 , 许继电气股份有限公司 , 许昌许继风电科技有限公司 , 国网新源张家口风光储示范电站有限公司 , 国家电网公司
- 申请人地址: 河南省许昌市许继大道1298号
- 专利权人: 许继集团有限公司,许继电气股份有限公司,许昌许继风电科技有限公司,国网新源张家口风光储示范电站有限公司,国家电网公司
- 当前专利权人: 许继集团有限公司,许继电气股份有限公司,许昌许继风电科技有限公司,国网新源张家口风光储示范电站有限公司,国家电网公司
- 当前专利权人地址: 河南省许昌市许继大道1298号
- 代理机构: 郑州睿信知识产权代理有限公司
- 代理人: 胡泳棋
- 主分类号: H02J3/38
- IPC分类号: H02J3/38 ; H02J3/12
The invention relates to a ride-through method for direct-drive unit under high-low-voltage compound faults. The ride-through method comprises the following steps: when a power network has a low-voltage fault, performing a reactive prior control strategy for reactive support by the unit through an unbalance control strategy to enable the voltage of the power network to recover; when the voltage of the power network recovers to exceed rated voltage and is positioned in a safe controllable area, adopting a constant voltage control scheme; when the voltage of the power network is continuously increased to be beyond the safe controllable range of a converter device for the unit, controlling a DC-Chopper circuit to unload for maintaining the power balance. The safety of the converter for the unit is guaranteed, and the ride-through of the direct-drive unit under the high-low-voltage compound faults is realized.
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 |