Development Of Power Electronic Controlling Platform Based On Dual-core DSP And FPGA

With the development of power electronic technology, power electronic devices based on conventional silicon are stepping to a new generation of wide band gap devices such as SiC and GaN. However, the new devices have higher requirements for power electronic control platform due to their high switching frequency. It not only requires higher operation speed and control precision, but also needs large capacity data storage and high speed communication. Therefore, it is urgent to develop a high performance power electronic control platform to meet the requirements of the new generation power electronic converter control.Based on the above requirements, DSP+FPGA hardware architecture is used in the design of the platform. As the new member of TI embedded controller C2000 series, F28M36 which is DSP+ARM dual-core architecture is used as the main controller. The DSP kernel is used to execute AD sampling, complex algorithms and PWM control and the ARM kernel is used to achieve external communication and interruption event management. The FPGA is responsible for implementing logic judgment and hardware circuit protection which require fast response. The EDA software Cadence is used because its strict rules are very suitable for completing the design of high speed PCB. Its powerful simulation tools can be used to finish the signal integrity analysis of high speed signals of the system such as Ethernet, SPI, SSI etc. to ensure the high speed signal work reliably and shorten the development cycle of the platform.Function validation software of DSP kernel, ARM kernel and FPGA are programed and a host computer server system based on TCP/IP is developed with VC software. In this way, the control platform can be connected and communicated to the PC software for display which greatly reduces the difficulty of debugging.Finally, all the blocks of the platform developed in this thesis have been tested. The experimental results show that the developed platform meets the requirement of control of current power electronic converter. It works well.