- 专利标题: ELECTRICAL POWER SYSTEM CONVERTER CONTROL
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申请号: US17950423申请日: 2022-09-22
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公开(公告)号: US20230124932A1公开(公告)日: 2023-04-20
- 发明人: Francisco Javier CHIVITE ZABALZA , David R. TRAINER , Mark SWEET , Matthew C. MORRIS , Zafer JARRAH , James A. CAMPBELL
- 申请人: ROLLS-ROYCE plc
- 申请人地址: GB London
- 专利权人: ROLLS-ROYCE plc
- 当前专利权人: ROLLS-ROYCE plc
- 当前专利权人地址: GB London
- 优先权: GB2115016.4 20211020
- 主分类号: F02C6/00
- IPC分类号: F02C6/00 ; H02M5/458 ; H02M7/219 ; H02M1/00 ; H02M1/12 ; H02J3/02 ; B64D27/10 ; B64D27/24
摘要:
An electrical power system includes: an electrical machine to output AC; DC electrical network; power electronics converter connected between the AC output of the electrical machine and the DC electrical network and having a phase leg having first and second branches respectively having first and second bi-directional MOSFETs; and controller controlling switching of the first and second bi-directional MOSFETs of each phase leg of the converter so that current is commutated between the phase leg first and second branches rectifying the AC input to DC to supply the DC electrical network with DC electrical power. The controller is responsive to a determination to the effect that there is a fault in the DC electrical network, to control the switching of each phase leg first and second bi-directional MOSFETs to switch the converter into a crow-bar configuration in which electrical machine current does not flow to the DC network.