AC Switch

This section describes single-phase two-level inverter

A block diagram and input parameters for the AC switch component are given in Table 1.

Table 1. AC switch component in the Schematic Editor core library
component component dialog window component properties

AC Switch

  • General
    • Control(Digital inputs, Model)
    • S1 (1..32(64))
    • S2 (1..32(64))
    • S1_logic (active high, active low)
    • S1_logic (active high, active low)
    • _control_property (all high, all low)
    • Gate control enabling
    • Sen (1..32(64))
    • Sen_logic (active high, active low
Weight = 1

Digital inputs, when selected for Control parameter, enables the user to assign gate drive inputs to any of the digital input pins (from 1 to 32(64)). For example, if S1 is set to 1, the digital input pin 1 will be routed to the S1 switch gate. In addition, the S1_logic parameter selects either active high (High-level input voltage VIH turns on the switch), or active low (Low-level input voltage VIL turns on the switch) gate logic, depending on the user’s external controller design.

Model control, when selected for Control parameter, enables the user to set the IGBTs gate drive signals directly from signal processing model. The input pin gates appears on the component. It is 2 element vector input, where first value (index 0) controls S1 gate and second value (index 1) controls S2 gate. When controlled from the model, logic is always active high.

PWM enabling, when checked, enables using an external PWM enabling signal.

Show monitoring variables enables monitoring of voltages inside of the component and the output current.

Digital Alias

If a converter is controlled by digital inputs, an alias for every digital input used by the converter will be created. Digital input aliases will be available under the Digital inputs list alongside existing Digital input signals. The alias will be shown as Converter_name.Switch_name, where Converter_name is name of the converter component and Switch_name is name of the controllable switch in the converter.