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Verification platform for control and protection algorithm of high voltage direct current power transmission system

A high-voltage direct current transmission and protection algorithm technology, which is applied in general control systems, electrical test/monitoring, control/regulation systems, etc., can solve the small scale of low-power physical prototype systems, the danger of short-circuit fault tests, and the inconvenience of system parameters and topology and other problems, to achieve the effect of powerful parallel computing capability and easy algorithm development

Inactive Publication Date: 2015-05-06
STATE GRID CORP OF CHINA +1
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Problems solved by technology

But the main problem of this method is that it is very inconvenient to change the parameters and topology of the system, the scale of the low-power physical prototype system is generally relatively small, and it is dangerous to do various short-circuit fault tests at the same time

Method used

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  • Verification platform for control and protection algorithm of high voltage direct current power transmission system
  • Verification platform for control and protection algorithm of high voltage direct current power transmission system
  • Verification platform for control and protection algorithm of high voltage direct current power transmission system

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Embodiment Construction

[0020] The specific implementation of the present invention is illustrated by the realization and verification of the control and protection algorithm of the 12-pulse HVDC transmission system.

[0021] figure 2 Shown is the concrete structure and connection mode of the example of the present invention. The power system real-time simulator adopts the ADPSS (Advanced Digital Power System Simulator) of the Chinese Academy of Electric Power Research Institute, which is composed of multiple computer servers. Real-time simulation of electronic systems. The simulator workstation is responsible for the construction of the HVDC system model and the distribution of simulation tasks among the servers, and it communicates with the server group through the network. The control and protection strategy of the HVDC transmission system is implemented using a PXI industrial computer, the chassis model is PXIe 1082, and the CPU module model is PXIe 8135. This CPU module is equipped with a 4-...

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Abstract

The invention discloses a verification platform for a control and protection algorithm of a high voltage direct current power transmission system. The verification platform is composed of a power system real-time emulator, an emulator workstation, a PXI industrial computer and a PXI upper computer. The verification platform utilizes the real-time emulator to replace a miniature small-power actual high voltage direct current power transmission system, and overcomes the limitation that the theoretical physics is difficult to change the parameters and topological structure of the system and a short trouble test is dangerous to perform. The platform selects the PXI industrial computer to serve as the implementing platform of the high voltage direct current control and protection algorithm to replace an expensive direct current control and protection deice; meanwhile the PXI industrial computer has the advantages of being easy to develop algorithm and call the parameters online. The platform plays a very important role in the control and protection algorithm verification and parameter setting of the high voltage direct current power transmission system.

Description

technical field [0001] The invention relates to a high-voltage direct current transmission system control and protection algorithm verification platform, which belongs to the technical field of power system control and simulation. Background technique [0002] The thyristor-based high-voltage direct current transmission system (HVDC) plays a very important role in the long-distance and large-capacity power transmission in our country. For example, a large part of the electric energy generated by the hydropower stations in the middle and upper reaches of the Yangtze River is transmitted to East China through the high-voltage direct current transmission system. load center. Although the thyristor-based high-voltage direct current transmission system has been operating in the actual system, since HVDC itself is a strong nonlinear system, and the mechanism of its interaction with the AC system is also very complicated, its control and protection It has always been a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02G05B23/02
Inventor 舒展陈波苏永春周宁
Owner STATE GRID CORP OF CHINA
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