Electric power telemechanical device RTU and method for implementing automatic voltage control of generating plant

Abstract

The invention discloses an electric power telemechanical apparatus RTU and a method for realizing the automatic voltage control of the power plant. The inventive electric power telemechanical apparatus includes a central control module, a remote signalling module, a telemetering module, a remote regulating module and a remote control module, wherein the central control module includes a communication submodule, a data bank submodule and an automatic voltage control submodule, which generates the control signal for adjusting the wattless production output of the generating set, based on the data stored in the data bank submodule, and transmits the control signals to the remote regulating module or the remote control module through the communication submodule, then transmits to the generating set which participates in the voltage control through the remote regulating module or the remote control module, realizes the automatic voltage control. The invention gives full play to the function of the electric power telemechanical apparatus, reduces the amount of the situ hardware units, increases the operational precision of the data in the AVC adjusting process.

Description

technical field [0001] The invention relates to a power remote control device of a power plant and a method for realizing automatic voltage control of the power plant by using the power remote control device. Background technique [0002] In recent years, the power system has invested a lot of energy in improving the power quality and voltage level. However, with the increasing scale of the power grid, in the past, the reactive power and voltage control was performed manually by the operating personnel on duty based on their operating experience and simple logical judgment. Mode has been difficult to achieve the effect of optimal control, and can not meet the requirements of the grid. Therefore, it is necessary to comprehensively consider various voltage regulation methods to adjust the voltage of the whole network in real time. The automatic voltage control (AVC) system will solve the problem of reactive voltage control of large-scale power grids from the system level. [...

AI Technical Summary

Problems solved by technology

The advantage of receiving the AVC target command from the dispatching AVC master station through the electric remote control device is to directly use the existing and mature dispatching channel and the mature communication protocol of the power remote control device to receive the AVC target command and load curve of the dispatching master station; the disadvantage is that after The power remote control device needs to communicate with the power remote control device of different manufacturers to receive data

If the special AVC device of the power plant communicates directly with the dispatching AVC master station, the AVC of the power plant and the power remote control device are relatively independent, but the communication with the master station needs to be increased, which will increase the channel investment

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