Flexible DC power transmission system simulation experiment device and method based on FPGA chip platform

Abstract

The invention provides a flexible DC power transmission system simulation experiment device and method based on a FPGA chip platform; the device comprises a valve base controller, a simulation unit plate, a control and interface plate, a wave recorder, an upper computer and a real time digital simulator; the method employs a plurality of software subprograms of the same chip to simulate power unitfaults and to realize unit control board functions in a real valve tower; the method employs the same chip to simultaneously make analogue simulations and unit control, and uses software subprogramsto replace an original unit control chip, thus saving the unit control chip singly used for controlling the valve tower unit; the method is not limited by the unit control chip number, can flexibly configure simulation unit parameters and a topological structure, thus solving the problems that a conventional simulation experiment platform is insufficient in power unit level fault responses and tests.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a simulation experiment device and method for a flexible direct current transmission system based on an FPGA chip platform. Background technique [0002] The simulation experiment of the flexible direct current transmission system uses the software and hardware model with the same physical characteristics as the prototype system to cooperate with the digital simulator for simulation, and draws the test conclusion by simulating the performance of the equipment in the real environment. The main method is to use RTLab (real-time digital simulator) or other similar power electronics simulation systems to form a closed-loop test system for simulation verification, build a test model to simulate various operating conditions and fault states of the actual power system, and test the valve base control. Whether the device can respond correctly to various operating conditions and...

AI Technical Summary

Problems solved by technology

Since the RTLab simulator only sets the most basic switching signal and bypass function for the single power unit simulation model of the valve tower, it does not optimize the actual characteristics of different types of sensors for the power unit modules developed by each manufacturer. The traditional The valve base controller of the simulation platform generally ignores the verification of some specific fault responses of a single power unit. In addition, when the system to be simulated is large in scale, the simulated valve tower generally needs to be connected with the valve tower to be simulated and composed of There are equal numbers of unit control boards and simulation unit boards in the valve tower. Due to the large number of boards, the scale of the simulation system will become very large

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