Introduction: The motor controller in this project has the advantages of high power and high performance, which supports 400V 300A 100 + KW load operation and can be fully compatible with VESC.
The motor controller in the project is a three-phase motor controller. It requires a DC voltage to generate a sine wave of 3 drive motors using the PWM principle, which is similar to a small ESC of the drone and bicycle.
The motor control panel can drive a load circuit of 400V, 300A or more.
Why design this motor controller?
Because we want to be part of the most daring, the most spectacular build, no other open platforms can drive 100 kWh-level engines. What you can get is just a high-power dedicated controller that cannot be adjusted according to your needs. More importantly, you can't see the internal working principle to assess whether the quality of software and hardware reaches your standard.
It can be seen that the current amount of electric car has been bundled with a special motor driver, and we provide our customers with an opportunity to integrate motor drivers to their system, and achieve product vertical opportunities, and save money Cost, improve the quality and integration of the vehicle.
Motor controller work mode?
The motor controller uses the principle of spatial vector modulation (SVM), producing three sine wave-to-drive motor by the PWM principle by battery voltage (high voltage EDC). Through the principle of spatial vector modulation (SVM). Reduces the required switching amount, thereby reducing the switching loss. Although VESC supports the drive motor in the trapezoidal and live control mode, the motor controller we designed works only in the FOC area, which is more suitable for applications.
FOC is about adjusting your sinusoidal wave and the actual field inside the motor, and controls the torque generating current and flux (IQ) of the machine and the flux (IQ). Current (ID). In addition to control loops, you also need a user interface (VESC tool) to configure motor parameters, which will be your debugging and understanding of the machine.
The following is our view:
A more compact, fewer mechanical assembly is achieved, and the ECONODUAL / 17MM IGBT module is achieved.
Independent DC high voltage power supply and phase voltage monitoring are integrated on the board.
Measuring the RF connector of the analog signal.
Independent IGBT fault monitoring device.
Using LED signal lights for overvoltage, overcurrent, and overheating alarms.
Temperature monitoring of IGBT.
The ICE40 FPGA development is performed using the open source toolchain for Sinthesis and HDL.
FPGA is constantly monitoring all fault inputs. If a fault occurs, close all PWM outputs.
Use FPGA to monitor PWM waves. If the transmit command is detected, turn off the PWM.
Use the RJ45 communication mode.
Dual simulation accelerator input.
Double isolated CANBus interface.
BIS absolute encoder support (development under firmware).
Provide an adjustable 15VDC for the gate driver and monitors the voltage.
DAC output with RF connector.
Open circuit drain output for driving small load or relays (e.g., pumps).
More fuses, more TV, more electromagnetic interference filtration.
Here are some high-resolution pictures for reference:
The drawing is a continuous operation design for 400V 300AMP.
Our other product:
