mchv230vac1.5kw-33ak128mc106-acim-foc-pll v1.0.0
Release Highlights
This is the first version of code for sensorless field oriented control of ACIM using PLL estimator on MCHV-230VAC-1.5KW Development Board (EV78U65A) with dsPIC33AK128MC106 MC DIM (EV68M17A).
The code is set up for running a LEESON 3-Phase Induction Motor (230V, 60Hz, 1/3HP, 1.4A). The motor is tested under no load conditions. To achieve optimal performance under loaded conditions, the control parameters in the firmware may need additional tuning.
Features Added\Updated
- Code flow is managed by State Machines to allow seamless integration of load-specific algorithms and application-specific communication interfaces
- Integrates two variants of flux weakening,
- Voltage Feedback Method (PI controller-based magnetizing current generation to maintain operation within the voltage limit circle)
- Inverse Speed Method (Computes magnetizing current based on inverse relation to speed reference)
- DC bus voltage compensation
- Over Current Fault
- Software limit on the phase current
- DC Bus current protection using dsPIC� features such as PWM PCI, comparator and DAC