This is the base model for analysis workflow examples.
Control the RMS voltage in a load-side converter. The load is provided by a three-phase series RL element. The Control subsystem uses a PI-based cascade control structure with two control loops, an outer voltage control loop and an inner current control loop. The simulation uses step references. The Scopes subsystem contains scopes that allow you to see the simulation results.
A three-phase bridge cycloconverter. The cycloconverter consists of 36 thyristors and has the capacity to lower the frequency of the input voltage. The Control subsystem implements the cycloconverter RMS voltage control. It also provides pulse generation for the firing of the thyristors. The Visualization subsystem contains scopes that allow you to see the simulation results. The simulation time, t, is 1 second. The load increases when Load1 switches on at t = 0.75 seconds.
A three-phase matrix converter that drives a static load and draws unity power factor at the source. The Scopes subsystem contains scopes that allow you to see the simulation results.
Control in open-loop a three-phase modular multilevel converter (MMC). Each MMC arm consist of eight half-bridge submodules. A wye-connected series RLC structure provides the load to the system.
Model a three-phase voltage-sourced converter that uses Fixed Low-side Bias (FLB) modulation. This modulation scheme minimises the switching in the converter as at any given time one phase is not being pulse modulated. The trade-off is the need for narrower pulses for a given level of acceptable harmonics. The model can be used to support selection of suitable values for L, C and the pulse modulation scheme parameters.
Model a three-phase voltage-sourced converter that uses Sinusoidal Pulse-Width Modulation (SPWM). This modulation scheme compares a reference sine wave with a higher-frequency repeating triangle wave in order to generate the pulses. The model can be used to support selection of suitable values for L, C and the pulse modulation scheme parameters.
A thyristor-based rectifier.
Control a twelve-pulse thyristor rectifier. Two thyristor converters are connected to a Wye-Delta-Wye transformer on the input. A Thyristor 12-Pulse Generator block generates the gate signals for the two converters.
Control a Vienna rectifier. The Vienna rectifier subsystem consists of three-phase legs. Each leg has one power switch and six power diodes. The Control subsystem implements a closed-loop control strategy for the Vienna rectifier using space-vector modulation. Total simulation time is 0.1 s. At time 0.1 s, the Vienna Rectifier is engaged. At times 0.4 s and 0.6 s, the load steps up on the DC side.
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