发明授权
US5138247A Reactive power compensating apparatus with higher harmonic suppressing
function
失效
具有较高谐波抑制功能的反应电力补偿装置
- 专利标题: Reactive power compensating apparatus with higher harmonic suppressing function
- 专利标题(中): 具有较高谐波抑制功能的反应电力补偿装置
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申请号: US760364申请日: 1991-09-16
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公开(公告)号: US5138247A公开(公告)日: 1992-08-11
- 发明人: Yoshirou Tanoue , Akira Kawaguchi
- 申请人: Yoshirou Tanoue , Akira Kawaguchi
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX2-248214 19900918
- 主分类号: G05F1/70
- IPC分类号: G05F1/70 ; H02J3/01 ; H02J3/18 ; H02M1/12
摘要:
Higher harmonic power components and fundamental wave reactive power components are derived from a load voltage and current, using theory (instantaneous p-q theory) regarding instantaneous real power and instantaneous imaginary power. Gains are then obtained which make the higher harmonic power components and fundamental wave reactive power components not exceed predetermined limit values. The higher harmonic power components and fundamental wave reactive power components are respectively multiplied by the gains to obtain limited higher harmonic power components and fundamental wave reactive power components. An output current command is generated in accordance with the limited higher harmonic power components and fundamental wave reactive power components. The output current command is supplied to an inverter which in turn supplies a compensation current to the power system.
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