Invention Application
US20140098449A1 METHOD FOR DETECTING ISLANDING OPERATION OF DISTRIBUTED POWER GENERATOR
有权
用于检测分布式发电机的岛屿运行的方法
- Patent Title: METHOD FOR DETECTING ISLANDING OPERATION OF DISTRIBUTED POWER GENERATOR
- Patent Title (中): 用于检测分布式发电机的岛屿运行的方法
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Application No.: US14049751Application Date: 2013-10-09
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Publication No.: US20140098449A1Publication Date: 2014-04-10
- Inventor: Janne HELLBERG , Kimmo Heinonen , Jari Uusimäki
- Applicant: ABB Oy
- Applicant Address: FI Helsinki
- Assignee: ABB Oy
- Current Assignee: ABB Oy
- Current Assignee Address: FI Helsinki
- Priority: EP12187942.3 20121010
- Main IPC: G01R31/28
- IPC: G01R31/28
Abstract:
A method and an arrangement are disclosed for detecting islanding operation of a distributed power generator. The method can include determining a frequency of a grid to which the distributed power generator is connected, measuring a rate of change of the frequency of the grid at an output of the distributed power generator, determining a threshold value for an alteration speed, comparing the rate of change of the frequency of the grid with the threshold value, and detecting islanding operation when the measured rate of change of the frequency exceeds the threshold value for a certain time period.
Public/Granted literature
- US09494637B2 Method for detecting islanding operation of distributed power generator Public/Granted day:2016-11-15
Information query
