Power grid security and stability control device and method for realizing man-machine interaction by utilizing MODBUS communication protocol

Abstract

The invention discloses a power grid security and stability control device and method for realizing man-machine interaction by utilizing an MODBUS communications protocol, and belongs to the technical fields of electrical power systems and automation thereof. The device comprises a stability control function module and a man-machine interface module, wherein the stability control function module is used for achieving the function of power grid security and stability control, and the man-machine interface module is used for achieving all the functions of data display and data modification of a monitoring interface; the man-machine interface module is a touch screen supporting a serial port MODBUS communication protocol, the stability control function module and the touch screen are connected through RS485, and data transmission adopts a serial link MODBUS transmission mode. The data transmission is realized through the three steps of initialization, data receiving and processing, and sending. Compared with the prior art, the power grid security and stability control device, disclosed by the invention, overcomes the defects of the man-machine interface of a traditional stability control device, improves the aesthetic property and the operation convenience of the man-machine interface and effectively reduces the development cost and the maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof. More precisely, the invention relates to a power grid safety and stability control device and a human-computer interaction method thereof. Background technique [0002] The power grid security and stability control device (hereinafter referred to as the stability control device) is the control platform of the second and third security defense lines of the power grid, and realizes functions such as regional security and stability control, out-of-step splitting, and frequency and voltage emergency control. [0003] The importance of the stability control device interface has become increasingly prominent, and the human-machine interface has become an inseparable part of the user experience. The traditional safety and stability control device human-machine interface is completely independently developed by the stability control device manufacturer. The communica...

AI Technical Summary

Problems solved by technology

It has the following disadvantages: 1. The interface is not beautiful enough; 2. The operation is not convenient enough; 3. The product development cycle is long; 4. The cost of product development and maintenance is high

[0005] MODBUS is the most popular type of industrial field bus protocol. The MODBUS protocol has been widely used in the field of work control, but the MODBUS protocol has not been used in the internal communication of the stability control device.

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