发明授权
- 专利标题: Low distortion control for a VSCF generating system
- 专利标题(中): VSCF发电系统的低失真控制
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申请号: US285423申请日: 1988-12-16
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公开(公告)号: US4956598A公开(公告)日: 1990-09-11
- 发明人: Bradley J. Recker , Thong-Meng Cheng , Derrick I. Roe , Christopher J. Rozman
- 申请人: Bradley J. Recker , Thong-Meng Cheng , Derrick I. Roe , Christopher J. Rozman
- 申请人地址: IL Rockford
- 专利权人: Sundstrand Corporation
- 当前专利权人: Sundstrand Corporation
- 当前专利权人地址: IL Rockford
- 主分类号: H02P9/14
- IPC分类号: H02P9/14 ; H02M5/27
摘要:
Prior variable speed constant frequency (VSCF) generating systems which utilize an inverter to derive constant frequency power from variable frequency power developed by a generator driven by a prime mover have controlled system output voltage by controlling the excitation of the generator. Such a control technique, however, does not provide voltage regulation of individual phases and minimize undesirable distortion in the system output. In order to overcome the foregoing problem, a control for a VSCF system having a generator and an inverter which receives DC power from a rectifier coupled to the generator controls switches in the inverter to maintain the voltage of the AC power developed by the inverter at a desired level and controls the power applied to an exciter of the generator to maintain the voltage of the DC power at a particular level relative to the voltage of the AC power developed thereby. Distortion in the inverter output is thereby minimized.
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