研究目的
To develop a universal control system for semiconductor power converters based on programmable logic devices (PLD) and a microcontroller, focusing on shared functional modules, implementation features, and control algorithms to improve reliability and flexibility.
研究成果
The developed universal control system, combining PLDs and a microcontroller, offers advantages in noise immunity, reliability, flexibility, and compactness. It is suitable for various semiconductor power converters and can be implemented using domestic components. Future work could focus on expanding compatibility and optimizing for higher power applications.
研究不足
The control system requires external components like level drivers for signal transmission and analog-to-digital converters, as PLDs lack analog units. Implementation may be constrained by the logical capacity of PLDs, necessitating careful selection of devices. The system is designed for a specific range of power converters and may need adjustments for broader applications.
1：Experimental Design and Method Selection:
The study involved designing a control system using PLDs and a microcontroller, with simulation in environments like PSIM 9, VSM ISIS7 Proteus, and ALTERA Quartus II to model and verify the logic and functionality.
2：Sample Selection and Data Sources:
Mathematical models of control systems for rectifiers and inverters were developed and simulated. An experimental sample was created and tested with a low-power three-phase inverter and load simulator.
3：List of Experimental Equipment and Materials:
Equipment includes PLDs (e.g., EPM1270T144, EP1C3T144), microcontrollers (e.g., AT89S8253), analog-to-digital converters, oscilloscopes for waveform capture, and components for printed circuit boards.
4：Experimental Procedures and Operational Workflow:
Steps included simulation of control algorithms, hardware implementation on PLDs, software development in assembler, prototyping of PCBs, and joint testing with an inverter to obtain oscillograms of control pulses and output voltages.
5：Data Analysis Methods:
Analysis involved reviewing oscillograms to assess signal formation and system performance in various modes, using simulation tools to calculate logical capacity and verify theoretical models.
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