AN 995: Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for EV Charging Design Example

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ID 784593
Date 9/15/2023
Public
Document Table of Contents
Document Table of Contents x
1. About the Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for Electric Vehicle (EV) Charging Design Example 2. Getting started with the Design Example 3. Functional Description 4. Top-level VHDL Wrapper 5. Simulink Simulation Results 6. Document Revision History for AN 995: Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for EV Charging Design Example
1. About the Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for Electric Vehicle (EV) Charging Design Example x
1.1. FPGA Resource Usage
2. Getting started with the Design Example x
2.1. Software Requirements 2.2. Hardware Requirements 2.3. Downloading the Design 2.4. Installing the Design Example Templates 2.5. Programming the Board with the Design 2.6. Generating HDL Code with MATLAB and HDL Coder
2.5. Programming the Board with the Design x
2.5.1. Running the Design
2.6. Generating HDL Code with MATLAB and HDL Coder x
2.6.1. Generating HDL and QPF Using MATLAB Scripts 2.6.2. Generating HDL and QPF Using MATLAB GUI Tools
3. Functional Description x
3.1. Simscape* Model 3.2. Simulink* Model 3.3. HDL Inputs, Outputs, and Parameters
3.2. Simulink* Model x
3.2.1. AC-DC Converter Controller 3.2.2. Power Electronics 3.2.3. Source Voltage Generator Block 3.2.4. LLC DC-DC Converter
3.2.1. AC-DC Converter Controller x
3.2.1.1. PWM Controller 3.2.1.2. PLL 3.2.1.3. Sample and Hold Block 3.2.1.4. Clarke and Park Transforms
3.2.2. Power Electronics x
3.2.2.1. Six-switch Power Converter 3.2.2.2. Inductors 3.2.2.3. Output Capacitor
1. About the Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for Electric Vehicle (EV) Charging Design Example
2. Getting started with the Design Example
3. Functional Description
4. Top-level VHDL Wrapper
5. Simulink Simulation Results
6. Document Revision History for AN 995: Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for EV Charging Design Example

3.3. HDL Inputs, Outputs, and Parameters

The tables list the inputs, outputs, and PI controller block parameters on the HDL coder block for the Three-phase Boost Bidirectional AC-DC and LLC DC-DC Converter for EV Charging design example
Table 6.  Inputs for HDL Coder Block
Input Signal Name Type Description
clk Clock Input clock for the HDL coder block. Generated by PLL 20 MHz.
reset Reset Active low
clk_enable Enable Active high
Table 7.  Outputs for HDL Coder Block
Output Signal Name Data Type Description

V_R_L_diff

V_Y_L_diff

V_B_L_diff

Fix32_En16 The voltage across inductors for debugging when compared to the input voltage.
V_R, V_Y, V_B Fix32_En16 Three-phase input voltage from the voltage generator block.
I_R, I_Y, I_B Fix32_En16 Measured current in each inductor model block.
I_LOW, I_HIGH Fix32_En16 Sum of the low and high-side switch currents, respectively
VDC_P, VDC_N Fix32_En16 Voltage relative to ground of AC-DC rectifier DC output +/- ports.
VDC Fix32_En16 Output voltage of the AC-DC rectifier.
I_C Fix32_En16 Current measured in the AC-DC rectifier's output capacitor.
I_LOAD Fix32_En16 Current measured in the AC-DC rectifier’s output.
PWM_R, PWM_Y, PWM_B Fix32_En16 AC-DC rectifier controller-generated PWM signals for power transistor switching.
V_LLC_DC Fix32_En16 Output voltage of the LLC DC-DC converter
I_LLC_LOAD Fix32_En16 Load current of the LLC DC-DC converter
Table 8.  PI Controller Block AC-DC Rectifier Parameters
PI Controller Block Parameters Value
Voltage Loop Pgain 0.075
Voltage Loop Igain 22 * Ts
Dcurrent Loop Pgain 11
Dcurrent Loop Igain 500 * Ts
Qcurrent Loop Pgain 12.5
Qcurrent Loop Pgain 500 * Ts
Table 9.  PI Controller Block LLC DC-DC Converter Parameters
PI Controller Block Parameters Value
Pgain 1200
Igain 105
Level Two Title