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Lab 3 - Panels

Page Contents

Operation of the DC-DC Converter in Battery Charging Mode - Case A

Understanding the Panel

Figure 9 shows the primary Dashboards panel of the laboratory related to battery charging mode. This panel enables the user to manipulate the entire circuit, retrieve desired values, and observe plotted signals. Initially, all switches are turned off.

Lab3_pic4.png

Figure 9: Case A- Main Dashboards panel.

 

The panel is to be operated as follows.

At the top, there are control parameters and switches for the simulated circuit. The user can modify circuit parameter values and change switch statuses according to the laboratory task. These parameters and switches are summarized in Table 2.

Parameters/Switches

Initial value/Status

Parameters/Switches

Initial value/Status

Switching Frequency (Hz)

22000

Duty Cycle

0.612

Battery Voltage (V)

400

Open/Closed loop

Off

Data Acquisition

Off

Table 2: Circuit parameters and Switches.

The simulation results are shown under five tabs. The tabs named as “Scope 1”, “Scope 2”, “Scope 3”, and “Scope 4” display the steady-state results; while the transient analysis results are displayed in “Scope 5” . The content of scopes of these five tabs are summarized in Tables 3 to 7.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

Mean Output Voltage (V)

Average output voltage

Battery Voltage (V)

Battery voltage

Mean battery current (A)

Average battery current

Table 3: Contents of Scope 1.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

Output Voltage & Mean Output Voltage (V)

Output voltage and its average value

Inductor Voltage & Mean Inductor Voltage (V)

Inductor voltage and its average value

Inductor Current & Mean Inductor Current (A)

Inductor current and its average value

Table 4: Contents of Scope 2.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

DC Current & Mean DC Current (A)

DC current and its average value

Power & Average Power (W)

Active power and its average value

Table 5: Contents of Scope 3.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

Carrier and Duty Cycle

PWM carrier waveform and duty cycle

Pulse1

IGBT-1 pulse

Pulse2

IIGBT-2 pulse

Table 6: Contents of Scope 4.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

Reference Current and Measured Battery Current (A)

Reference current and measured battery current

Error in Current (A)

Error between reference current and measured current

Reference Duty Cycle

Duty cycle

Table 7: Contents of Scope 5.

Under “Scope 4” tab, there is the “Trigger” button, which allows to trig and display the waveforms of triggered scopes for transient operation.

Help Tab

Figure 10 shows the Help tab, in which a summary of the circuit parameters and the circuit configuration are presented.

Buck_help.PNG

Figure 10: Case A- Help Tab.

Harmonic Analysis Using ScopeView

The steps to follow in order to perform harmonic spectrum analysis using this laboratory are presented in Figures 11 to 14. These steps are based on the assumption that the HYPERSIM laboratory model is already open and running.

Figure 11: Selection of ScopeView.

Figure 12: Importing ScopeView template.

Figure 13: Selection of ScopeView template FFT_Lab3_1.

Figure 14: Run ScopeView template.

Operation of the DC-DC Converter in Battery Discharging Mode - Case B

Understanding the Panel

Figure 15 shows the main Dashboards panel of the laboratory related to battery discharging mode. This panel enables the user to manipulate the entire circuit, retrieve desired values, and observe plotted signals. Initially, all switches are turned off.

Figure 15: Case B- Main Dashboards panel.

 

The panel is to be operated as follows.

At the top, there are control parameters and switches for the simulated circuit. The user can modify circuit parameter values and change switch statuses according to the laboratory task. These parameters and switches are summarized in Table 8.

Parameters/Switches

Initial value/Status

Parameters/Switches

Initial value/Status

Duty Cycle

0.367

Battery Voltage (V)

545

Open/Closed loop

Off

Data Acquisition

Off

Table 8: Buck mode- Circuit parameters and Switches.

The simulation results are presented under four tabs. The tabs named as “Scope 1”, “Scope 2”, and “Scope 3” display the steady-state results; while the transient simulation results are shown in “Scope 4” . The content of scopes of these tabs are summarized in Tables 9 to 12.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

DC Link voltage (V)

DC link voltage

Input Voltage & Mean Input Voltage (V)

Input voltage and its average value

Table 9: Case B- Contents of Scope 1.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

DC Link voltage (V)

DC link voltage

Inductor Voltage & Mean Inductor Voltage (V)

Inductor voltage and its average value

Inductor Current & Mean Inductor Current (A)

Inductor current and its average value

Table 10: Case B- Contents of Scope 2.

Scope Label

Displayed Waveforms

Scope Label

Displayed Waveforms

DC Bus Current & Mean DC Current (A)

DC bus current and its average value

DC bus power (W)

Active power (W)

Inductor current & Mean Inductor current (A)

Inductor current and its average value

Table 11: Case B- Contents of Scope 3.

Scope 4 subtab

Scope Label

Displayed Waveforms

Scope 4 subtab

Scope Label

Displayed Waveforms

 

Res1

 

Reference Voltage and Measured DC Bus Voltage (V)

Reference voltage and measured bus voltage

Vdc Error (V)

Error between reference voltage and measured voltage

 

Res2

 

Reference Current and Measured Inductor Current (A)

Reference current and measured inductor current

Reference Duty Cycle

Duty cycle

Table 12: Case B- Contents of Scope 4.

Help Tab

Figure 16 shows the Help tab, in which a summary of the circuit parameters and the circuit configuration are presented.

Figure 16: Case B- Help Tab.

 

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