System Block Diagram

As seen below in Figure 2-1, the operation of the electric drive system relies on four component blocks. “Block 1” is the dsPIC30F6010a microcontroller, which operates the SVM software to control the optically isolated gate-drive circuit seen in “Block 2.” The gate-drive circuit forwards the control signals to the 3-phase inverter. The inverter is seen in “Block 3,” and provides the 3-phase AC voltage and current by converting its' input DC voltage to AC and driving the motor. “Block 4” is the diagnostics and communications block. This block uses CANBUS communications to provide information to the user about the operation of the inverter and motor. Also, this block is used for initial setup and tuning of the drive system.

Figure 2-1

Block 3

Block 1

Block 2

Block 4

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