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CONTROL PROCESS AND TRIGGER EQUIPMENT FOR DAMPING RESONANT VIBRATIONS OF A PARALLEL-RESONANT CIRCUIT FOR A PULSE-CONTROLED INVERTER OF A C URRENT-SOURCE INVERTER
CONTROL PROCESS AND TRIGGER EQUIPMENT FOR DAMPING RESONANT VIBRATIONS OF A PARALLEL-RESONANT CIRCUIT FOR A PULSE-CONTROLED INVERTER OF A C URRENT-SOURCE INVERTER
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机译：电流源逆变器脉冲控制逆变器并联谐振电路阻尼谐振的控制过程和触发装置
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摘要
A control process and trigger equipment damps resonant oscillations of a parallel-resonant circuit for a pulse-controlled inverter of a current-source inverter. The pulse-controlled inverter contains turnoff current-converter switches and is linked to an inductive and to a capacitive load. This inductive and capacitive load forms a parallel-resonant circuit. A modulation mode is selected from several stored modulation modes from the system frequency (f1) of the converter current (IR). Depending upon a calculated factor (f1/fres) and the selected modulation mode, switching angles (.alpha.1, .alpha.2, ..., .alpha.n) are determined depending upon system frequency by means of stored, preset switching angles. From these switching angles the control times for the pulse-controlled inverter are then generated. Thus, the pulse edges of a selected modulation mode can be adjusted with the system frequency as a function of frequency, enabling the resonant oscillations to be adequately damped over the entire system frequency range.
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