Powerless voltage automatic control system for area power grid

A technology of automatic voltage control and regional power grid, applied in the direction of AC network voltage adjustment, reactive power compensation, etc., can solve the problem of not realizing the horizontal and vertical coordination of grid reactive power, and reduce labor intensity, network loss and operating cost. , The effect of improving the voltage qualification rate

Inactive Publication Date: 2008-01-16
SHANGHAI JIAO TONG UNIV
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  • Claims
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Problems solved by technology

Its shortcomings are reflected in the fact that the above method basically belongs to the method of reactive power com

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  • Powerless voltage automatic control system for area power grid
  • Powerless voltage automatic control system for area power grid
  • Powerless voltage automatic control system for area power grid

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Example Embodiment

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation modes and specific operating procedures are given, but the scope of protection of the present invention is not limited to the following Mentioned examples.

[0030] As shown in Figure 1, the system of this embodiment is located in a dispatch center or a centralized control center, and the control of the capacitor banks and transformer taps of the substation is realized through the SCADA system.

[0031] As shown in Figure 2, when this embodiment is applied, two servers and three workstations are used, where the servers use the UNIX operating system, and the workstations use the NT operating system.

[0032]As shown in Figure 3, this embodiment is composed of a database module, a communication module, an analysis and calculation modu...

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Abstract

The invention belongs to the electric power technology field and relates to a regional power grid reactive power automatic control system. The system comprises a database module, a communication module, an analysis calculation module, a graphical display module, a statement management module as well as a system administration module; wherein, the communication module receives a measured data forwarded from a data acquisition and control system and sends the data to the calculation analysis module and at the same time stores the data in the database module; the analysis calculation module analyzes and calculates the measured data, forms a reactive voltage control strategy, and then downloads the data through the communication module; meanwhile, the data is transmitted to the graphical display module through the communication module to display the calculation analysis and the controlled result; the statement management module realizes the control result query, display and print; the system management module realizes the management to the whole system through the communication module. The invention can realize the automatic control of the whole process, thus eliminating the working intensity of the site operation personnel and improving the production efficiency.

Description

technical field [0001] The invention relates to a system used in the field of electric power technology, in particular to an automatic control system for reactive power and voltage of a regional power grid. Background technique [0002] As the SCADA (Data Acquisition and Control) system is becoming more and more perfect and mature, the accuracy of remote signaling and telemetry data is continuously improved, the remote control is more reliable, and the state estimation module realizes the online monitoring of power grid measurement, making the regions based on SCADA system The grid reactive voltage automatic control system (AVC system for short, the same below) is realized. The AVC system monitors the load change of the network, performs optimal calculation of reactive power and voltage under the condition of ensuring that the bus voltage is qualified, and combines the expert experience of the dispatcher to provide a complete control strategy. By changing the output of the c...

Claims

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Application Information

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IPC IPC(8): H02J3/16
CPCY02E40/34Y02E40/30
Inventor 王承民金义雄李宏仲刘涌段建民
Owner SHANGHAI JIAO TONG UNIV
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