Six-Pulse Gate Multiplexer

Multiplex gate input signals to Converter block

Libraries:
Simscape / Electrical / Semiconductors & Converters / Converters

Description

The Six-Pulse Gate Multiplexer block routes gate voltage signals to the six switching devices in a Converter (Three-Phase) block. The block multiplexes the six separate gate signals into a single vector.

When you switch the block inputs to electrical ports, the block shows additional electrical reference input ports. The additional electrical reference ports are associated with the individual phase voltages that connect to the high-side switching devices in the Converter (Three-Phase) block and the negative DC voltage common to each low-side switching device in the Converter (Three-Phase) block.

Examples

Asynchronous Machine Direct Torque Control

Control an asynchronous machine (ASM) using the direct-torque control method. A PI-based speed controller supplies the torque reference. The direct-torque controller generates the inverter pulses.

Open Model

SM Torque Control

Control the torque in a synchronous machine (SM) based electrical-traction drive. A high-voltage battery feeds the SM through a controlled three-phase converter for the stator windings and a controlled four quadrant chopper for the rotor winding. An ideal angular velocity source provides the load. The Control subsystem uses an open-loop approach to control the torque and a closed-loop approach to control the current. At each sample instant, the torque request is converted to relevant current references. The current control is PI-based. The simulation uses several torque steps in both motor and generator modes. The task scheduling is implemented as a Stateflow® state machine. The Visualization subsystem contains scopes that allow you to see the simulation results.

Open Model

SM Velocity Control

Control the rotor angular velocity in a synchronous machine (SM) based electrical-traction drive. A high-voltage battery feeds the SM through a controlled three-phase converter for the stator windings and a controlled four quadrant chopper for the rotor winding. An ideal torque source provides the load. The Control subsystem includes a multi-rate PI-based cascade control structure which has an outer angular-velocity-control loop and three inner current-control loops. The task scheduling in the Control subsystem is implemented as a Stateflow® state machine. The Visualization subsystem contains scopes that allow you to see the simulation results.

Open Model

Synchronous Reluctance Machine Torque Control

Control the torque in a synchronous reluctance machine (SynRM) based electrical drive. A high-voltage battery feeds the SynRM through a controlled three-phase converter. An ideal angular velocity source provides the load. The Control subsystem uses an open-loop approach to control the torque and a closed-loop approach to control the current. At each sample instant, the torque request is converted to relevant current references using the maximum torque per Ampere strategy. The current control is PI-based. The simulation uses torque steps in both the motor and generator modes. The Visualization subsystem contains scopes that allow you to see the simulation results.

Open Model

Three-Phase Two-Level PWM Generator

Use the PWM Generator (Three-phase, Two-level) to control a Converter. The inputs to the PWM Generator are reference AC waveforms and a DC-link voltage of 400 V. There is one time scope for the controller waveforms.

Open Model

Three-Phase Voltage-Sourced Converter (FLB)

Model a three-phase voltage-sourced converter that uses Fixed Low-side Bias (FLB) modulation. This modulation scheme minimizes 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.

Open Model

Ports

Input

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Ga(H),Gb(H),Gc(H) — Ga(H),Gb(H),Gc(H)
physical signal

Physical signal ports associated with the gate terminal of the Converter (Three-Phase) block high-side switching devices.

Dependencies

To enable this port, set Gate-control port to PS.

Ga(L),Gb(L),Gc(L) — Ga(L),Gb(L),Gc(L)
physical signal

Physical signal ports associated with the gate terminal of the Converter (Three-Phase) block low-side switching devices.

Dependencies

To enable this port, set Gate-control port to PS.

Conserving

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Ga(H),Gb(H),Gc(H) — Ga(H),Gb(H),Gc(H)
electrical

Electrical conserving ports associated with the gate terminals of the Converter (Three-Phase) block high-side switching devices.