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-550 is the development module of full digital controlled three-phase PV 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 single-phase PV 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.

The experiments with the PEK-550:

• Experiment 1 : Three Phase SVPWM Inverter
  To get to know the main circuit of three phase inverter, and learn three- phase SPWM, SVPWM as well as three phase axis transformation. To realize the DSP digital control circuit planning and learn the method of digital control programming via PEK-550 module. To well get familiar with the experiment devices and software manipulation.
• Experiment 2 : Three Phase Boost Stand-alone Inverter
  To get to know the way for modeling of three phase 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 of three phase grid-connected inverter, 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 three phase grid connected inverter.
• Experiment 4 : PV Boost Converter
  To get to know the characteristics of PV module and diversified MPPT method, and learn the code programming of Perturb and Observe method, further verifying the experiment result via step-up converter of PEK-550.
• Experiment 5 : Three Phase Islanding Protection Inverter
  To get to know the purpose and way to test verification of PV islanding protection, further proceeding to the code programming via SimCoder, after well mapping out the hardware.
• Experiment 6 : Three Phase PV Grid-Connected Inverter
  To get to know the fundamental with structure of three phase PV grid- connected inverter, and synthesize step-up converter with three-phase inverter to form the experiment of three phase PV grid-connected inverter, further proceeding to the code programming via SimCoder, after well planning.