Establishing method and system of VBR (voltage behind reactance) electromagnetic transient simulation model of synchronous generator

A technology for electromagnetic transient simulation and synchronous generators, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as slow simulation speed

Inactive Publication Date: 2018-09-25
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and system for establishing a VBR electromagnetic transient simulation model of a synchronous generator to solve the problem of slow simulation speed

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  • Establishing method and system of VBR (voltage behind reactance) electromagnetic transient simulation model of synchronous generator
  • Establishing method and system of VBR (voltage behind reactance) electromagnetic transient simulation model of synchronous generator
  • Establishing method and system of VBR (voltage behind reactance) electromagnetic transient simulation model of synchronous generator

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] The purpose of the present invention is to provide a method and system for establishing a VBR electromagnetic transient simulation model of a synchronous generator, so as to speed up the simulation speed while ensuring the simulation accuracy.

[0068] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanyin...

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Abstract

The invention discloses an establishing method and a system of a VBR (voltage behind reactance) electromagnetic transient simulation model of a synchronous generator. The method comprises the steps ofacquiring rotational frequency, a d-axis self-inductance coefficient, a d-axis damping winding inductance value, a q-axis mutual inductance coefficient, and a q-axis damping winding inductance value,calculating a d-axis subtranient potential and a q-axis subtranient potential, calculating an overall subtranient potential, acquiring a stator winding inductance parameter of the synchronous generator, determining a stator state equation, acquiring a rotor state equation of winding magnetic linkage, acquiring a rotor motion equation of the winding magnetic linkage, and establishing the VBR electromagnetic transient simulation model of the synchronous generator according to the stator state equation, the rotor state equation of the winding magnetic linkage and the rotor motion equation of thewinding magnetic linkage. The establishing method and the system can increase a simulation speed on the premise of ensuring simulation precision.

Description

technical field [0001] The invention relates to the technical field of power system simulation, in particular to a method and system for establishing a voltage source impedance (Voltage Behind Reactance, VBR) electromagnetic transient simulation model of a synchronous generator. Background technique [0002] For a power system of a certain scale, electromagnetic transient simulation faces a contradiction between simulation speed and simulation accuracy. Therefore, people continue to improve the electromagnetic transient model of each component of the power system. The synchronous generator is an important part of the power system. The VBR electromagnetic transient model of the synchronous generator is derived on the basis of the classic model of the synchronous generator. Compared with the original model, the VBR electromagnetic transient model of the synchronous generator is derived The selected state variable is more direct, and the simulation accuracy is higher; while the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 姚蜀军汪燕韩民晓占鹏黄闻而达
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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