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New Predictive Control Stategy for PWM-Inverters
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| Author(s) |
O. Niermeyer; D. Schröder |
| Abstract |
Applying two self-commutated inverters, one at the lineside and one at the machineside allows the full four-quadrant-operation of a speed controlled ac-motor drive at a very high total power factor on the lineside. With frequent speed changes the efficiency of the drive system is increased, due to the feedback of energy to the line. Also the lineside PWM-inverter is able to compensate reactive power demand from other parallel connected loads. The line current vector control calculates on line optimized pulse pattern to keep the three line currents within a preset hysteresis to the reference values. During steady state load condition the optimal switching state prediction results in minimized inverter losses and a low line distortion factor. Nevertheless the dynamic behaviour is only restricted by the inverter limitations. |
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| Filename: | Unnamed file |
| Filesize: | 3.613 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-03-01 by System |
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