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Reduction of self-oscillation in an intermediate electric circuit driven by a voltage-controlled, mains-connected intermediate circuit and corresponding voltage-controlled inverter
Reduction of self-oscillation in an intermediate electric circuit driven by a voltage-controlled, mains-connected intermediate circuit and corresponding voltage-controlled inverter
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机译:减少由电压控制的,与市电相连的中间电路和相应的电压控制的逆变器驱动的中间电路中的自激振荡
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摘要
Two IGBT transistors (T7) for a positive intermediate circuit bus bar and (T8) for a negative intermediate circuit bus bar operate alongside mains power input chokes (LK1-LK3) as switches for disconnecting an intermediate circuit. Each transistor has a recovery diode (D7,D8). These diodes are connected in anti-parallel. A voltage intermediate circuit is balanced by means of Y-capacitors (CY1,CY2). Independent claims are also included for an electric drive mechanism with an intermediate circuit voltage converter and for an intermediate circuit voltage converter.
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