Title: Power circuit control system of magnetic floation switch magnetic-resistance motor suspensition winding
Application Number: 200610114571 Application Date: 2006.11.15
Publication Number: 1980049 Publication Date: 2007.06.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02P25/08;H02P25/16;H02K3/28
Applicant(s) Name: Beijing Jiaotong Univ. Address:
Inventor(s) Name: Ge Baoming
Attorney & Agent: wuke yu maoyan sheng
Abstract:
    The control system for power circuit includes capacitive voltage self-balanced power circuit (CVPC), two splitting capacitors (SC), IPM intelligent power module, suspension force controller, voltage balance controller, and suspension winding, etc. CVPC is composed of high frequency (Hf) transformer, two power switches with diode connected in inverse parallel and two flywheel diodes. Based on detected voltages of two splitting capacitors, the voltage balance controller drives two power switches connected to windings at primary and secondary sides of Hf transformer respectively so as to implement voltage balance between two SC. Controlling IPM intelligent power module, the suspension force controller controls current of each suspension winding, and suspension force further. Advantages are: suitable to any number of suspensions winding, controlable magnitude and direction of current in each winding, avoiding voltage drift in middle point of SC, and high efficiency etc.
Time: 12
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