Real-time simulated test research method for security and stability control of power grid

A real-time simulation and stable control technology, which is applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as inability to connect, insufficient simulation accuracy, and inability to perform closed-loop testing, achieving high precision and fast simulation response Effect

Active Publication Date: 2012-10-03
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

But its main disadvantages are: 1) Only offline simulation can be performed, and real-time simulation cannot be performed; 2) The component controller model is limited, custom modeling cannot be customized, and the simulation accuracy is not enough; 3) Only the expected control logic can be implemented by software Realized, so that the open-loop test can be carried out, but the closed-loop test cannot be carried out; 4) It cannot be directly connected with the hardware device of the secur

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  • Real-time simulated test research method for security and stability control of power grid
  • Real-time simulated test research method for security and stability control of power grid
  • Real-time simulated test research method for security and stability control of power grid

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Embodiment Construction

[0066] Such as figure 1 As shown, it is a schematic diagram of the real-time simulation test method of the power grid security and stability technology of the present invention. The real-time simulator in the embodiment of the present invention is RTDS developed by Canada RTDS Company.

[0067] (1) Real-time simulation test of wide-area oscillation decoupling system of Yunnan small hydropower group in China Southern Power Grid

[0068] China Southern Power Grid's Yunnan small hydropower group wide-area oscillation decoupling system is a stability control technology independently developed by China Southern Power Grid based on wide-area phasor measurement for low-frequency oscillation monitoring and control. It belongs to the stability technology of the third line of defense of the power system. In the process of its research and development, it is necessary to test and improve the correctness and completeness of the principle of system oscillation separation, especially the c...

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Abstract

The invention provides a real-time simulated test research method for security and stability control of a power grid. The real-time simulated test research method comprises a large power grid real-time simulation model and parameter establishing method, a multi-time scale multi-area stability control technology comprehensive coordination method, and a wide area stability system real-time simulation scene establishing technology. The method provided by the invention is characterized in that a real-time simulation system is connected with an actual alternative-current/direct-current control protection device and a security and stability control device is used for development and test on the security control. With the adoption of the real-time simulated test research method provided by the invention, an important supporting platform is provided for the development and the test on the security control of the large-size power grid; and the principle research of the stability technology, the scheme design of the stability system, the comprehensive test of a stability device, the comprehensive verification of a control target, and the dynamical property analysis of the power grid can be perfectly combined.

Description

technical field [0001] The invention relates to the field of safety and stability control technology and real-time simulation of electric power system, and more specifically relates to a real-time simulation experiment research method for power grid safety and stability control. Background technique [0002] The dynamic characteristics of modern large-scale power grids are complex, and the safety and stability control systems put into operation are of various types and large in scale. The research and design of safety and stability technology, the test of safety and stability systems, and the verification of control strategies require a lot of work and difficulty. However, the research and development and test methods of the existing security system have great limitations. The existing test and research methods of power grid stability control technology generally include power system offline digital simulation, relay protection tester, dynamic model test and wave recording a...

Claims

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Application Information

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IPC IPC(8): G05B17/02
Inventor 郭琦韩伟强曾勇刚吴小辰李伟李建设黄河张勇徐光虎赵晋泉
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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