Invention Grant
- Patent Title: Switched reluctance machines with minimum stator core
- Patent Title (中): 具有最小定子铁心的开关磁阻电机
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Application No.: US12601903Application Date: 2008-05-30
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Publication No.: US08901798B2Publication Date: 2014-12-02
- Inventor: Krishnan Ramu , Nimai Lobo , Cheewoo Lee
- Applicant: Krishnan Ramu , Nimai Lobo , Cheewoo Lee
- Applicant Address: US WI Beloit
- Assignee: Regal Beloit America, Inc.
- Current Assignee: Regal Beloit America, Inc.
- Current Assignee Address: US WI Beloit
- Agency: Armstrong Teasdale LLP
- International Application: PCT/US2008/006828 WO 20080530
- International Announcement: WO2008/153832 WO 20081218
- Main IPC: H02K19/12
- IPC: H02K19/12 ; H02K1/14 ; H02K19/10

Abstract:
A two-phase switched reluctance machine is provided using discontinuous core structures as the stator for low-cost, high-performance drives. This discontinuous stator core structure contains short flux paths and maximum overlap between the rotor poles and stator poles in the stator discontinuous core structures, regardless of the rotor position. Example configurations of such core structure include E-core, L-core and I-core configurations. Using less steel and magnet wire than in conventional SRM designs results in cost savings of stator material and winding material. Efficiency of this novel SRM is improved because of shorter flux paths resulting in reduction of core losses and decreased phase resistance resulting in reduction of copper losses. Two-phase simultaneous excitation of the novel SRM can reduce torque ripple during commutation as compared with existing two-phase SRMs.
Public/Granted literature
- US20100141061A1 Switched Reluctance Machines with Minimum Stator Core Public/Granted day:2010-06-10
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