Invention Grant
- Patent Title: Control of an electrical machine
- Patent Title (中): 电机控制
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Application No.: US13250302Application Date: 2011-09-30
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Publication No.: US08841876B2Publication Date: 2014-09-23
- Inventor: Mark Edward Leaver , Yu Chen , Tuncay Celik
- Applicant: Mark Edward Leaver , Yu Chen , Tuncay Celik
- Applicant Address: GB Malmesbury
- Assignee: Dyson Technology Limited
- Current Assignee: Dyson Technology Limited
- Current Assignee Address: GB Malmesbury
- Agency: Morrison & Foerster LLP
- Priority: GB1016687.4 20101004
- Main IPC: H02P1/46
- IPC: H02P1/46 ; H02P6/00 ; H02P6/14 ; H02P23/00
Abstract:
A method of controlling an electrical machine that includes exciting a phase winding with a supply voltage, and freewheeling the phase winding when current in the phase winding exceeds a threshold. The threshold is then adjusted in response to changes in the supply voltage and/or the speed of the electrical machine. Additionally, a control system that implements the method and an electrical machine comprising the control system are described.
Public/Granted literature
- US20120081064A1 CONTROL OF AN ELECTRICAL MACHINE Public/Granted day:2012-04-05
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