1. Three Phase Inverter
Electrical power inversion is the process of converting DC voltages into AC power sources. This is most commonly used when supplying AC power from DC sources such as batteries and DC power supplies. This can be achieved using Switching and Control circuits to produce a signal of the required amplitude and frequency. Multisim allows the modelling of the circuit and PWM signal, so that the required output can be generated.
This is most commonly achieved by a three-phase inverter, which is essentially the combination of three single phase converters. The switch operation of a three-phase inverter is controlled so that they act at each 60 deg point of the output waveform. In the example below we have used a three-phase PWM supply to generate PWM signals at the required phase.
2. Transient Analysis
NI Multisim comes with a range of pre-built analysis models. The transient analysis allows us to understand the operation of the inverter and how this leads to the development of the AC signal.
The analysis models built into Multisim allows for the characterization of circuits ensuring the optimum circuit design is chosen. The analysis results are based on the industry standard SPICE simulation models, more details of which can be found within the SPICE Simulation Fundamentals Whitepaper series.