Active Full Wave Rectifier

Description of the Active Full Wave Rectifier component in Schematic Editor

Figure 1. Component Icon

Schematic Block Diagram

A schematic block diagram of the Active Full Wave Rectifier with corresponding switch arrangement and naming is given in Figure 2.

Weight of an ANPC Leg component for real-time simulation is 1.

Figure 2. Schematic block diagram of an Active Full Wave Rectifier with corresponding switch naming

Control

Selecting Digital inputs as the Control parameter enables assigning gate drive inputs to any of the digital input pins (from 1 to 32(64)). For example, if S1 is assigned to 1, the digital input pin 1 will be routed to the S1 switch gate drive. In addition, the gate_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 drive logic, depending on the design of the external controller. In TyphoonSim, digital signals are read from the internal virtual IO bus. Hence, if some signal is sent to digital ouput 1, it will appear on digital input 1.

Selecting Internal modulator as the Control parameter, enables use of the internal PWM modulator for driving S1 and S2 switches instead of digital input pins. In this configuration, three additional component inputs will be present. The En input is used to enable/disable the internal PWM modulator, while In1 and In2 are used as a reference signal inputs.

Selecting Model as the Control parameter, enables setting of the IGBTs gate drive signals directly from the signal processing model. The input pin gates appears on the component. It is a 2-element vector input, where the first value (index 0) controls the S1 gate and the second value (index 1) controls the S2 gate. When controlled from the model, logic is always active high.

PESB Optimization

The PESB Optimization option is available in certain converter models. When PESB Optimization is enabled, all converter's short circuit state space modes will be merged and treated as the same state space mode. For example, if one converter leg within the three phase converter is short circuited and PESB Optimization is enabled, all of the legs within the three phase converter will also be short circuited. This simplification for short circuit modeling can save a significant amount of matrix memory.

Feature ignored: PESB Optimization is specific for optimization of real-time simulation and it is not applied to TyphoonSim at all. Changing its value will not affect TyphoonSim simulation at all.

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.

Ports

  • A_IN (electrical)
    • AC side input port.
  • B_IN (electrical)
    • AC side input port.
  • OUT (electrical)
    • DC side port.
  • gates (in)
    • Available if model control is selected
    • Vector of 2 input gate signals for switches
  • En (in)
    • Available if Internal modulator control is selected
    • Used to enable/disable internal modulator
  • In1 (in)
    • Available if Internal modulator control is selected
    • Used to specify the modulation signal value for the S1 switch internal modulator
  • In2 (in)
    • Available if Internal modulator control is selected
    • Used to specify the modulation signal value for the S2 switch internal modulator
  • Freq (in)
    • Available if Internal modulator control is selected and Variable carrier frequency is selected as the modulator's operation mode
    • Used to specify the modulator's carrier frequency

General (Tab)

  • Control
    • Specifies how switches are controled. It is possible to choose between: Digital input per swich, Digital input per leg, Internal modulator, and Model
    • More details about each type of control can be found in the Control section
  • If Digital inputs is selected as Control, the following properties can be used:
    • S1
      • Digital input that is used to control the S1 switch
    • S1_logic
      • Logic that will be applied to the control signal for S1
      • Active high or active low
    • S2
      • Digital input that is used to control the S2 switch
    • S2_logic
      • Logic that will be applied to the control signal for S2
      • Active high or active low
    • PWM enabling
      • If enabled, gives a possibility to control if changes in the gate control signal are applied or not
    • Sen
      • Available if Gate control enabling is enabled
      • Digital input that enables/disables switching
    • Sen_logic
      • Available if Gate control enabling is enabled
      • Logic that will be applied to Sen signal
  • If Model is selected as Control, the following properties can be used:
    • Execution rate
      • Defines the period between two updates of gate signals for the component. Gate signals are provided as a signal processing input to component.
  • If Internal modulator is selected as Control, the following properties can be used:
    • Operation mode
      • Specifies the source of the internal modulator carrier frequency
      • If Operation mode is Fixed carrier frequency, then frequency can be specified on the component properties
      • If Operation mode is Variable carrier frequency, then the frequency can be specified using a signal processing port
    • Carrier frequency (Hz)
      • Available if the Operation mode is a Fixed carrier frequency
      • Specifies the internal modulator's carrier frequency
    • Carrier phase offset
      • Specifies the internal modulator's carrier phase offset in degrees.
    • Dead time period
      • Specifies dead time for the internal modulator in seconds
    • Reference signal [min, max]
      • Specifies carrier signal minimal and maximal value
      • Vector containing two values: the minimal carrier signal value, followed by the maximal carrier signal value
    • Load mode
      • Specifies on which event the new value of the modulation signal will be applied in the internal modulator
        • If on min is selected, the new value will be applied when carrier reaches minimal value
        • If on max is selected, the new value will be applied when carrier reaches maximal value
        • If on either is selected, the new value will be applied when carrier reaches minimal or maximal value

Advanced (Tab)

  • PESB Optimization
    • PESB Optimization is specific for optimization of real-time simulation and it is not applied to TyphoonSim at all. Changing its value will not affect TyphoonSim simulation at all.
    • Enables/disables PESB optimization. More details can be found in the dedicated PESB Optimization section.

Extras (Tab)

The Extras tab gives you the opportunity to set Signal Access Management for the component.
Signal visibility is calculated based on the 'signal_access' property and whether or not a parent component in its hierarchy is locked or not. Components that are not contained within locked components expose their signals regardless of the 'signal_access' property. The 'signal_access' property can have one of three values:
  • Public - Components marked as public expose their signals on all levels.
  • Protected - Components marked as protected will hide their signals to components outside of their first locked parent component.
  • Inherit - Components marked as inherit will take the nearest parent 'signal_access' property value that is set to a value other than inherit.