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Static frequency converter simulation modeling method and system

A static frequency converter, simulation modeling technology, applied in instrumentation, computing, electrical digital data processing and other directions

Active Publication Date: 2019-08-16
NR ELECTRIC CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a static frequency converter simulation modeling method and system, which solves the above-mentioned problems existing in the existing models

Method used

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  • Static frequency converter simulation modeling method and system
  • Static frequency converter simulation modeling method and system
  • Static frequency converter simulation modeling method and system

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0040] Such as figure 2 As shown, a static frequency converter simulation modeling method includes the following steps:

[0041] Step 1. Construct the primary circuit model of the static frequency converter according to the actual primary circuit diagram of the static frequency converter.

[0042] According to the actual static frequency converter primary circuit diagram, use the AC power supply model components, switch model components, thyristor three-phase converter bridge, DC reactor model components, transformer model components and synchronous motor model components in RTDS, in RTDS Establish a static inverter primary circuit model, which only reflects the circuit structure.

[0043] S...

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Abstract

The invention discloses a static frequency converter simulation modeling method. The method comprises the following steps: constructing a primary loop model of the static frequency converter; constructing a rotor static friction model; constructing a rotor rotation resistance model; and constructing an excitation control model of the static frequency converter. The invention also discloses a corresponding system. According to the method, a static frequency converter primary loop model is constructed, a rotor static friction force model, a rotor rotation resistance model and a static frequencyconverter excitation control model are also constructed, the circuit structure of the static frequency converter primary loop can be reflected, and the actual working state can also be reflected.

Description

technical field [0001] The invention relates to a static frequency converter simulation modeling method and system, belonging to the technical field of real-time digital dynamic simulation tests. Background technique [0002] Such as figure 1 As shown in the primary circuit diagram of the stationary inverter, the three-phase fully-controlled rectifier bridge and the DC reactor form a DC current source. By controlling the inverter bridge, the DC current is converted into an AC current with a gradually increasing frequency and input to the stator of the synchronous motor. After the rotor is excited, the motor speeds up from standstill to the required speed. Static frequency converters are widely used in the start-up of reversible units in pumped storage power plants. Before the implementation of the static frequency converter project, it is necessary to carry out the control function test and control parameter setting of the static frequency converter control equipment, so i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2119/06G06F30/20
Inventor 闫伟石祥建刘为群吴龙刘腾漫自强黄河清詹亚曙
Owner NR ELECTRIC CO LTD