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

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...

AI Technical Summary

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 security system

[0006] The data used by the recorder and playback tester is generally BPA, PSASP and other electromechanical transient simulation software, which is limited by the model and parameters of the original electromechanical transient simulation software. Big limitations

Therefore, it is generally only suitable for verifying the reliability of the software and hardware of the device and the correctness of the policy matching program, and cannot achieve the effect of a comprehensive test

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