Current transformer control device

Abstract

The invention discloses a current transformer control device. A first digital signal processor (DSP) module is externally connected with a communication interface module, and a data and address bus is connected with a first field programmable gate array (FPGA) module at the same time to receive and transmit various communication data; the first FPGA module is connected with the first and second DSP modules and exchanges data with the first and second DSP modules, and the first FPGA module is connected with a second FPGA module to perform control signal transmission; a dynamic random access memory (DRAM) module is connected with the first DSP module and the second DSP module respectively to realize data exchange of the first and second DSP modules; and the second DSP module is connected with an analog / digital (A / D) module, a digital / analog (D / A) module and the first and second FPGA modules. According to the technical scheme, the current transformer control device has high data acquisition and output capacities, simultaneously has strong universality, has various communication functions and interfaces, and can meet the requirements of various industrial application occasions.

Description

technical field [0001] The invention relates to a device for controlling a converter, in particular to a general-purpose converter control device using DSP and FPGA as the control core, which is widely used in various power systems. Background technique [0002] With the development of power electronics technology, converter devices with nonlinear characteristics and large-capacity dynamic loads are widely used, and the harmonic pollution and reactive power problems in the power grid are becoming increasingly serious, which affects the safe operation of the power grid and industrial and agricultural production. The normal power consumption of the grid, suppression of grid harmonics and reactive power compensation have become an urgent issue. [0003] The basic principle of the static var generator (SVG) is to convert the voltage on the DC side into an output voltage with the same frequency as the grid on the AC side through proper control of the controllable power semiconduc...

AI Technical Summary

Problems solved by technology

The technical solution used in the invention has limited accuracy of analog acquisition, and the communication functions are not diversified enough. Only the CAN controller

[0011] Therefore, in the prior art, a single DSP+single FPGA chip is used for data processing, PWM pulse generation, and communication interface independently, which makes the working conditions of the existing chips more complicated, which easily leads to the excessive use of the core chips of the existing platform, resulting in platform Unstable and unreliable operation

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