A general controller of power electronic system based on dsp+fpga

Abstract

The invention discloses a DSP (Digital Signal Processing) and FPGA (Field Programmable Gate Array)-based universal controller of a power electronic system, and belongs to the technical field of control on power electronic systems. The universal controller comprises a DSP control circuit board (short for a DSP board) and one or more extensible FPGA control circuit board (short for FPGA boards), wherein the FPGA boards are connected to the DSP board through two parallel interfaces with pins of 2*40 in a board-to-board way; the FPGA boards are positioned above the DSP board; more FPGA boards can be upwards stacked and extended through the two parallel interfaces, and other functional circuit boards can also be extended through two digital signal I / O (Input / Output) interfaces in the board-to-board way. The DSP board is used for executing digital signal processing and computation through a control algorithm; the FPGA boards are responsible for generating and outputting PWM (Pulse Width Modulation) pulse driving control signals and carrying out digital signal I / O, analog signal I / O, optical fiber I / O, analog signal modulation and conversion and system fault monitoring and protection. The universal controller disclosed by the invention had the advantages of universality, high extendibility, high openness and high security, supports hardware reprogramming and can be used for controlling power electronic converters of any topological structures.

Description

technical field [0001] The invention belongs to the technical field of power electronic system control, and in particular relates to a power system based on DSP+FPGA (DSP is a digital signal processor, Digital Signal Processing, referred to as DSP; FPGA is a Field Programmable Gate Array, Field Programmable Gate Array, referred to as FPGA). Universal controller for electronic systems. Background technique [0002] Power electronic conversion devices are widely used in motor speed control systems, ground power systems, aircraft and ship power systems. For example, in aircraft power systems, power electronic conversion devices with various topological structures include PWM rectifiers and PWM inverters. Converters and dual PWM converters, with the development of power electronics technology, may be applied to matrix converters and electronic electronic conversion devices with other topologies. There are both commonality and differences between the controllers of power electron...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of lack of versatility and scalability of existing power electronic system controllers, the present invention proposes a general controller, a controller suitable for any power electronic system, which has versatility and high scalability Safety, safety and openness, not only applicable to Buck, Boost and Buck-Boost circuits, PWM rectifiers, PWM inverters and dual-PWM converters, but also applicable to single-stage matrix converters and dual-stage matrix converters, and also applicable to For multilevel rectifiers, multilevel inverters and multilevel matrix converters

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