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Pulse-width modulated power converters are currently the most widespread solution in industrial drive applications. The common trend in converter development is to operate all system components at, or - for short durations - even above their rated values. At system configurations where the inverter is operating at its thermal limit different points of operation of a connected machine require special...
Currently, induction motor drives and other symmetrical, three-phase inductive loads are the main applications of matrix converters. If only two loads are connected to matrix converters, the conventional control algorithms cannot be applied as usual due to the unsymmetrical load. To extend the application of matrix converters to unbalanced loads this paper derives a novel angle-modulation strategy...
The paper presents simulation of single-phase cascade multilevel PWM converter topology based on 5-level flying-capacitor (FLC) modules. The cascaded solution provides a high number of output levels and high modularity (power electronics building blocks - PEBB), what gives possibility for flexible operation of converter at various high voltage and high power conditions. Several simulation results...
Applications that require high energy long pulses are frequently produced by using capacitor banks switched to the load by controlled switches such as IGCTs or IGBTs. To ensure low droop the capacitor bank must store significantly more energy than that required for the pulse. For applications with higher pulse energy the capacitor stored energy to ensure adequate pulse flatness can become prohibitively...
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