Invention Grant
- Patent Title: Method of operating an inverter and inverter control arrangement
- Patent Title (中): 运行变频器和变频器控制装置的方法
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Application No.: US12938460Application Date: 2010-11-03
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Publication No.: US08902618B2Publication Date: 2014-12-02
- Inventor: Paul Godridge , Rodney Jones
- Applicant: Paul Godridge , Rodney Jones
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Priority: EP09013909 20091105
- Main IPC: H02M7/5383
- IPC: H02M7/5383 ; H02M7/5387 ; H02J3/38 ; H02M7/44

Abstract:
A method of operating an inverter for converting a DC power into AC power by use of a pulse width modulation switching scheme is provided is disclosed. The inverter is controlled by use of the pulse width modulation switching scheme to provide an alternating current based on a current demand signal defining an alternating current provided by the inverter. An upper current threshold and a lower current threshold are provided. An instantaneous value of the alternating current is measured. When the instantaneous value of the alternating current overshoots the upper current threshold or undershoots the lower current threshold, the pulse width modulation switching scheme is replaced by an amended switching scheme which controls the instantaneous value of the alternating current to be between the upper current threshold and the lower current threshold. The upper current threshold and the lower current threshold oscillate with at least one alternating phase.
Public/Granted literature
- US20110103110A1 Method of operating an inverter and inverter control arrangement Public/Granted day:2011-05-05
Information query
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