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Modeling method of power generating system of mixed excited synchronous motor

A technology for hybrid excitation synchronous and power generation systems, which is applied in the fields of controlling generators through magnetic field changes, electrical digital data processing, and special data processing applications. It can solve problems such as difficulties in simulation and analysis of hybrid excitation synchronous motor power generation systems, and speed up the design process. Effect

Active Publication Date: 2012-10-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] The purpose of the present invention is to provide a modeling method that is not only convenient to realize but also can accurately analyze the output characteristics of the hybrid excitation synchronous motor power generation system in view of the difficulty in simulation analysis of the current hybrid excitation synchronous motor power generation system

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  • Modeling method of power generating system of mixed excited synchronous motor
  • Modeling method of power generating system of mixed excited synchronous motor
  • Modeling method of power generating system of mixed excited synchronous motor

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Embodiment Construction

[0023] figure 1 It is a flow chart of the modeling method of hybrid excitation synchronous motor power generation system. Taking a set of 3kVA hybrid excitation synchronous motor power generation system as an example, the following describes the modeling method and process of the hybrid excitation synchronous motor power generation system in detail:

[0024] 1. According to the designed structural parameters of the hybrid excitation synchronous motor, the three-dimensional finite element electromagnetic field simulation model of the hybrid excitation synchronous motor is established first, and then the static field analysis and transient field analysis are carried out respectively. In the static field analysis, after the excitation current is defined, the motor model needs to be meshed, and the mesh mesh is shown as figure 2 shown. On the basis of the static simulation model, the transient field analysis model adds a rotating boundary, defines the mechanical rotating part o...

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Abstract

The invention discloses a modeling method of a generating system of a mixed excited synchronous motor. The method comprises the following steps of: establishing a simulation model of a three-dimensional finite element electromagnetic field of the mixed excited synchronous motor; calculating the synchronous reactance value of the mixed excited synchronous motor under different excitations and different load currents according to a phase potential waveform and a vector diagram of the mixed excited synchronous motor, which are acquired through the coupling analysis of a transient field circuit; establishing a body simulation model of the mixed excited synchronous motor according to a voltage equation of the mixed excited synchronous motor; and adding an output voltage detection module, an excitation current feedback module, a load current feedback compensation calculation module and a load current detection part to form a generating system model of the mixed excited synchronous motor on a basis of the body simulation model of the mixed excited synchronous motor. The modeling method of the mixed excited synchronous electric generating system is particularly suitable for the application research of an airplane generating system and a wind generating system of a novel mixed excited synchronous motor and provides a reference for analyzing the steady-state and dynamic performance of the system and designing the parameters.

Description

technical field [0001] The invention relates to a modeling method of a hybrid excitation synchronous motor power generation system. Background technique [0002] Hybrid excitation synchronous motor is a new type of motor, which strives to inherit the advantages of permanent magnet synchronous motor, and at the same time has the ability to adjust the air gap magnetic field, and has become a new research hotspot in the field of motors. The new type of hybrid excitation synchronous motor has attracted people's attention day by day, and the application research in power systems such as aircraft power generation system and wind power generation system is being carried out at home and abroad. However, in practical applications, hybrid excitation synchronous motors need to form an automatically controlled power generation or electric power system together with a voltage regulation system or a drive control system. System-level simulation analysis is the premise and basis for the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50H02P9/38
Inventor 张卓然杨善水杨春源严仰光
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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