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-110 is the development module of full digital controlled signal-phase 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 inverter through PSIM simulation verification and SimCoder programming processes.

With the comprehensive capabilities of realizing simulation, design, hardware circuit,
PSIM is a simulation 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 specifications of single-phase inverter development module

Experiments

Experiment 1: Unipolar SPWM Inverter
Experiment objective is to learn the principle of Unipolar SPWM Inverter. Via PEK-110 module, students learn the voltage and current measurement method and the settings of TI F28335 DSP IC pin locations, PWM and A/D hardware as well as to understand how to conduct the control and measurement of DSP’s internal signal by RS-232.

Experiment 2: Stand Alone Inverter with Dual Loop Inductor Current Control

Experiment objective is to learn the module establishment of single-phase inverter and the design of voltage and current loop controllers. After designing hardware SimCoder is utilized to conduct programming.

Experiment 3: Grid Connected Single Phase Inverter

Experiment objective is to understand the basic principle and structure of city grid paralleled with inverter; the design method of phase-locked loop of single-phase paralleled inverter, and the design of voltage and current loop controllers. After the designing city grid paralleled with inverter SimCoder is utilized to conduct programming.

Experiment 4: Bridgeless PFC AC/DC Converter
Experiment objective is to understand the principle of Bridgeless PFC; current loop design; voltage loop design and hardware planning. SimCoder is utilized to conduct programming.

Experiment 5: Full-bridge AC/DC Switching Rectifier
Experiment objective is to understand the principle of Full-bridge AC/DC Switching Rectifier; current loop design, voltage loop design and hardware planning. SimCoder is utilized to conduct programming.