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Voltage reactive real-time control system of regional power grid and enclosed loop control method thereof

A real-time control system, voltage and reactive power technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation and other directions, can solve problems such as system voltage drop, voltage collapse, system loss of synchronization, etc., to reduce network loss.

Active Publication Date: 2011-11-23
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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AI Technical Summary

Problems solved by technology

However, the operating voltage level of the system depends on the balance of system reactive power. Insufficient reactive power will cause the system voltage to drop. , resulting in a voltage collapse leading to catastrophic accidents in which the system collapses due to loss of synchronization

Method used

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  • Voltage reactive real-time control system of regional power grid and enclosed loop control method thereof
  • Voltage reactive real-time control system of regional power grid and enclosed loop control method thereof
  • Voltage reactive real-time control system of regional power grid and enclosed loop control method thereof

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] figure 1 It is a schematic diagram of the overall structure of the real-time control system of voltage and reactive power of the regional power grid of the present invention, including a SCADA system connected to the power system, an EMS system connected to the SCADA system, and also includes:

[0018] The power grid simulation system connected to the SCADA system is used to receive the real-time data collected by the SCADA system on the power system, and then model according to the hybrid system theory to complete the simulation of the real-time control of the voltage and reactive power of the power system. The modeling objects include Generators, lines, asynchronous motors, static var compensators, on-load tap changer transformers, phase-shifting transfor...

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Abstract

The invention discloses a voltage reactive real-time control system of a regional power grid and a control method thereof. The system comprises an SCADA (supervisory control ad data acquisition) system, an EMS (enhanced massage service) system, a power grid simulation system and a power grid test system, wherein the SCADA system is connected with a power system; the EMS system is connected with the SCADA system; the power grid simulation system is connected with the SCADA system, and is used for finishing the simulation of voltage reactive real-time control of the power system; and the power grid test system is respectively connected with the power grid simulation system, the EMS system and the SCADA system, and is used for finishing the reactive control optimal scheme of the power system. According to the invention, nonlinearity complex behavior of the simulation power system from the aspect of full grid is performed, the generation of the final control scheme is finished by a test system, and voltage stable operation of the power system is controlled remotely or controlled through remote regulation; and the system and method have great significance in power grid stability, safety operation of power equipment and industrial and agricultural production.

Description

technical field [0001] The invention relates to the technical field of power grid automatic control, in particular to a real-time control system for voltage and reactive power of a regional power grid and a closed-loop control method thereof. Background technique [0002] With the gradual development of the economy, the country's electricity load is increasing day by day, and the economic operation of the power grid has also been paid more and more attention. Reducing power grid loss, improving power system transmission efficiency, economy of power system operation, and control automation level have become the focus of attention. [0003] Using effective means to reduce network loss and improve system voltage level has become a topic directly related to the economic benefits of electric power enterprises. Power system voltage and reactive power control is a problem related to ensuring power supply quality, meeting user reactive power requirements and system voltage stabilit...

Claims

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Application Information

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IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 周伊琳陈炯聪胡亚平孙建伟陈扬
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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