A test device for digital instrument control system of nuclear power plant

Abstract

The invention discloses a testing device of a nuclear power station digitized instrument and control system. The testing device relates to the field of automation control and comprises a control device and a signal processing device, wherein the control device comprises an industrial control computer, a collection card installed in the industrial control computer and a control software controlling the testing process; the signal processing device comprises a layplate and a conditioning card; two ends of the layplate are connected with the collection card and the conditioning card through signal wires respectively; and the other end of the conditioning card is connected with a DCS (data communication system) control cabinet to be tested through a signal wire. The testing device adopts the DCS control cabinet or process system as a unit for testing, and can enable all the signals to be simultaneously connected into the testing device for finishing all the test items of the DCS control cabinet or the process system by one time, thus improving testing efficiency and saving human resource. The control method shows the testing state and expected result in real time, the simulation software can simulate the control loop of the process system, and the control accuracy and control effect of the process system state testing can be set according to the needs.

Description

technical field [0001] The invention relates to the field of automation control, in particular to a test device for simultaneously detecting all signal points in a digital instrument control cabinet of a nuclear power plant. Background technique [0002] As the key equipment of nuclear power unit, the DCS (Digital Instrument Control System) of nuclear power plant is an important part of nuclear power plant. DCS interconnects various controllers, instruments and instrumentation equipment on site. DCS includes protection system, control system, safety shutdown system, Guarantee system and auxiliary system and other parts, each system uses the required instruments and control equipment to complete the automatic detection and control functions of most of the nuclear power plant process, so the safe, reliable and economical operation of the nuclear power plant unit depends to a large extent on the DCS Performance level, the DCS process is complicated, there are many parameters fo...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low efficiency and high cost of manual testing of DCS control cabinets in nuclear power plants in the prior art, and few control points for one integrated test, the present invention provides an integrated test device that can simultaneously test all signal points on a DCS control cabinet at one time, and can be used according to Increase or decrease the test port according to the number of target objects, and at the same time output offset signals to expand the test range. The specific scheme is as follows: a test device for a digital instrument and control system of a nuclear power plant, including a control device and a signal processing device, characterized in that the The control device includes an industrial computer, an acquisition card installed inside the industrial computer, and control software for controlling the testing process. The signal processing device includes a distribution board and a conditioning board. board connection, the other end of the conditioning board is connected to the DCS control cabinet under test through the signal line

Images