Hybrid real-time simulation method for continuous long-time steady operation of power system

A hybrid real-time, power system technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of stability, steady-state error, lack of solutions, etc., and achieve the effect of stability guarantee

Inactive Publication Date: 2010-12-29
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

Research and analysis show that the hybrid real-time simulation closed-loop interactive computing system itself has objective stability problems, steady-state errors, and hybrid simulation steady-state flat startup. However, there is no research on quantitative analysis of it, and there is a lack of perfect solutions.

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  • Hybrid real-time simulation method for continuous long-time steady operation of power system
  • Hybrid real-time simulation method for continuous long-time steady operation of power system
  • Hybrid real-time simulation method for continuous long-time steady operation of power system

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Embodiment Construction

[0024] The hybrid real-time simulation method of the continuous long-term stable operation of the power system proposed by the present invention comprises the following steps:

[0025] (1) Establish a hybrid real-time simulation interactive computing system for the power system, divide the power system into the electromagnetic transient side system and the electromechanical transient side system from the sub-network interface, and establish an analytical analysis model for the above hybrid real-time simulation interactive computing system, The analytical analysis model includes the first simulation interface quantity interaction and processing system and the first port response model of the above-mentioned electromagnetic transient side system, and the second simulation interface quantity interaction and processing system and the second port response model of the above-mentioned electromechanical transient side system ;

[0026] (2) Describe the state space of the above analyt...

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Abstract

The invention relates to a hybrid real-time simulation method for continuous long-time steady operation of a power system, and belongs to the technical field of transient simulation of the power system. The method comprises the following steps of: establishing a hybrid real-time simulation interactive computing system and a resolution analysis model for the power system, dividing the power system into an electromagnetic transient side system and an electromechanical transient side system at a meshing interface, analyzing the characteristic value of a state matrix in the resolution analysis model to obtain a computing system mode, judging the mode, setting a one-order inertia system according to the judgment result, verifying the steady gain in the resolution analysis model, and setting a scale factor according to the verification result so as to realize flat start. According to the method, the hybrid simulation can be steadily performed; the method ensures that the hybrid real-time simulation has no steady error so that the hybrid real-time simulation can be continuously performed for long time, and does not affect the simulation of transient and dynamic processes of the hybrid real-time simulation; and the method can ensure that the hybrid real-time simulation reaches a steady state in 3 seconds after closing a loop, and can perform more than 8 hours of continuous hybrid real-time simulation.

Description

technical field [0001] The invention relates to a hybrid real-time simulation method for continuous long-term stable operation of a power system, belonging to the technical field of power system transient simulation. Background technique [0002] The electromagnetic transient process and the electromechanical transient process contained in the transient behavior and process of the power system are organically combined and are a continuous process, which is difficult to separate completely. In modern power systems, the coupling of these transient processes is closer. In the power system, the electromagnetic transient process and the electromechanical transient process occur simultaneously and affect each other. If the two can be combined and considered together, it will not only help to understand the dynamic characteristics of the transient stability process of large systems, but also help Understand the transient change process of a specific part of a large system. Especia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 洪潮张树卿
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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