Invention Grant
- Patent Title: Method and device in frequency converter
- Patent Title (中): 变频器中的方法和装置
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Application No.: US12626413Application Date: 2009-11-25
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Publication No.: US07884582B2Publication Date: 2011-02-08
- Inventor: Tero Viitanen
- Applicant: Tero Viitanen
- Applicant Address: FI Helsinki
- Assignee: ABB OY
- Current Assignee: ABB OY
- Current Assignee Address: FI Helsinki
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: FI20086142 20081128
- Main IPC: G05F1/70
- IPC: G05F1/70 ; H02M7/217
Abstract:
A method in connection with a frequency converter for correcting the power factor of the frequency converter, and a power factor correction unit. The method includes connecting the power factor correction unit between a rectifier bridge of the frequency converter and the supplying AC voltage network, generating with the power factor correction unit DC voltage from the AC voltage of the supply network and feeding the generated DC voltage to the frequency converter via the rectifier bridge of the frequency converter.
Public/Granted literature
- US20100142238A1 METHOD AND DEVICE IN FREQUENCY CONVERTER Public/Granted day:2010-06-10
Information query
IPC分类:
