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Simulation analysis method of electromechanical transient process of electrical power system

A power system and transient process technology, applied in electrical digital data processing, instrumentation, computing, etc., can solve problems such as large changes in system operation, increased power system complexity, and economic losses.

Inactive Publication Date: 2015-06-24
HENAN XINGZHI PATENT SERVICE CO LTD
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Problems solved by technology

[0002] Due to the large geographical span between regional power grids, complex grid structures, large differences in load characteristics, and large changes in system operation modes, the interconnection expansion of regional power grids has also led to a rapid increase in the complexity of the power system, which greatly increases the occurrence of systemic accidents and even large-scale accidents. The probability of large-scale power outage accidents, the occurrence of large-scale power outage accidents will bring great harm to social production and people's lives, and cause huge economic losses

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  • Simulation analysis method of electromechanical transient process of electrical power system
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  • Simulation analysis method of electromechanical transient process of electrical power system

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Embodiment Construction

[0050] The simulation analysis methods of electromechanical transient process in power system include:

[0051] 1. Electromechanical transient simulation modeling

[0052] (1) Composition of the whole system model

[0053] The power system is basically composed of dynamic components such as generators, excitation prime movers, governors, networks, loads, and other control devices. All dynamic elements in the system are independent of each other, and it is the power network that connects them together.

[0054] The system-wide model can be uniformly described mathematically as a system of differential algebraic equations in the following general form:

[0055]

[0056]Among them, x represents the state variable describing the dynamic characteristics of the system in the differential equation; V represents the operating parameter of the system in the algebraic equation system. The whole system model includes a large number of ordinary differential equations and a large num...

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Abstract

Provided is a simulation analysis method of the electromechanical transient process of an electrical power system. An electromechanical transient system model of the electrical power system is established, the electromechanical transient of the electrical power system is simulated through network dividing and solving of differential algebraic equations, simulating calculation is performed according to the simulation process, the electromechanical transient of the electrical power system is analyzed through simulation modeling, and therefore stability and safety of the electric power system are guaranteed.

Description

technical field [0001] The invention relates to the technical field of transient stability analysis of a power system, in particular to a simulation analysis method for an electromechanical transient process of a power system. Background technique [0002] Due to the large geographical span between regional power grids, complex grid structures, large differences in load characteristics, and large changes in system operation modes, the interconnection expansion of regional power grids has also led to a rapid increase in the complexity of the power system, which greatly increases the occurrence of systemic accidents and even large-scale accidents. The occurrence of large-scale power outage accidents will bring great harm to social production and people's lives, and cause huge economic losses. The system design, planning, operation and dispatch of the power system should fully consider the operation stability of the system after a sudden large disturbance. The electromechanica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 马新攀
Owner HENAN XINGZHI PATENT SERVICE CO LTD
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