Power converter utilizing digital control is the development trend of the present industrial products. Digital control can elevate the function and performance of power converter to increase product’s added value. More and more power converters are using the digital control technology. The objective of this course kit is to provide a learning platform for power converter using digital control. Users, via PSIM software and simulation, learn the principle, analysis and design of power converter.
Furthermore, the SimCoder tool of PSIM can be used to convert control circuit to digital control program as well as to operate a second simulation for circuit, which will be replaced by DSP. Finally, control program, via simulation verification, can be burned into DSP chip. DSP, via control and communications, verifies the correctness of designed circuit and controller.
PEK-530 is the development module of full digital controlled micro-grid inverter, aiming at the training of circuit analysis, design, simulation and experiment for researchers to conduct problem-oriented learning. The quantitative design of power circuit and controller is based upon converter’s specifications. Users can further understand the related technology of micro-grid inverter through PSIM simulation verification and SimCoder programming processes.
With the comprehensive capabilities of realizing simulation, design, hardware circuit, PSIM is simulated software specifically designed for systems such as power electronics, motor driver and power conversion. PSIM features comprehensive functions, complete components, fast simulation, accurate simulation results and easy to use, and this software is often used by the international academics and industries for education and research.
Experiment 1: Three Phase SVPWM Inverter
To get to know the principle of three phase SPWM and SVPWM. Realize the measurements of voltage and current via PEK-530 module, and learn the TI F28335 DSP IC pins, PWM and A/D hardware setting. Also understand how to proceed to DSP internal signal control and measurement via RS-232.
Experiment 2: Three Phase Stand-alone Inverter
To get to know the way for modeling of three phase stand-alone inverter, and learn the design of both voltage loop and current loop controllers, further proceeding to the code programming via SimCoder, after well mapping out the hardware.
Experiment 3: Three Phase Grid-connected Inverter
To get to know the fundamental with structure of three phase grid- connected inverter, and learn not only the design method of phase- lock loop, but the design of both voltage loop and current loop controllers as well, further proceeding to the code programming via SimCoder, after well mapping out the grid connected inverter.
Experiment 4: PQ Control of Three-phase Grid-connected Inverter
In essence, PQ control decouples real power and reactive power before controlling them respectively. PEK-530 is able to proceed to code programming via SimCoder, after well mapping out the PQ control.
Experiment 5: P-ω and Q-V Droop control of Three Phase Stand-alone Inverter
To learn the P-ω and Q-V droop control, and proceed to code programming via SimCoder, after well mapping out the PEK-530.
Experiment 6: Parallel Operation of Multiple Stand-alone Inverters with Virtual Impedance and Droop Control Method
To get to know the parallel operation of multiple stand-alone inverters, and implement parallel operation for 2 sets of inverters, further proceeding to code programming via SimCoder, after well mapping out the PEK-530.
