Modelling of Electrical Machines by Using a Circuit- Coupled Finite Element Method
نویسنده
چکیده
This paper presents a nonlinear circuit-coupled 2D finite element model for use in the dynamic simulation of electrical machines with multiple sets of windings, connected to an external electrical circuit, and with rotating parts. An inductance is introduced to account for the 3D end effects on phase inductance, due to the end windings and axial fringing field. The model is applied to the simulation of two types of electrical machines, a permanent magnet generator and a switched reluctance motor. The modeling procedures are described and simulation results are presented. The calculated performances are compared with test results to validate the modeling.
منابع مشابه
Cogging Torque Reduction in PMSM Motor by Using Proposed New Auxiliary Winding
Performing fast and accurate methods for modeling the electrical machines has been the subject of several studies and many authors proposed different procedures to attain this aim. Beside the accuracy, the speed of the method is of great concern. On the other hand, the capability of the method to be changed according to the need is another important issue. Finite Element method provides relativ...
متن کاملA Comparison Between Electrical Circuit and Finite Element Modeling Methods for Performance Analysis of a Three-Phase Induction Motor under Voltage Unbalance
Induction motor is the most popular load in the industry, it is very important to study about the effects of voltage quality on induction motor performance. One of the most important voltage quality problems in power system is voltage unbalance. This paper evaluates and compares two methods including finite element method (FEM) and equivalent electrical circuit simulation for investigation ...
متن کاملNovel Axial Flux Brushless Resolver Analysis and Optimization Using 3D Finite Element and d-q Model Method
Resolvers are widely used in electric driven systems especially in high precision servomechanisms. Both encapsulated and pancake resolvers suffer from a major drawback: static eccentricity (SE). This drawback causes a significant increase in resolver output position error (RPE) which could not be corrected electronically. To reduce RPE, this paper proposes a novel structure with axial flux. Pr...
متن کاملFinite Element Model of Hydro Generators Coupled to a Grid Simulation Software
For the simulation of electrical power systems (adjustable speed drives, wind farms, complete grids, etc.) the Kirchhoff’s model is used. Each of the components of this model (transmission line, circuit breaker, electrical machines, etc.) is represented by an equivalent circuit. These equivalent circuit models are unable to take precisely into account the non-linearities of the electrical machi...
متن کاملDesign Study of Piezoelectric Micro-machined Mechanically Coupled Cantilever Filters using a Combined Finite Element and Microwave Circuit Analysis
A new mechanical filter structure is presented which comprises two silicon cantilevers mechanically coupled by a silicon linkage with thin film piezoelectric transducers providing electrical input and output signals. The resonance behaviour of such a structure results in a bandpass filter response, having a band-width determined by the frequency separation between the closely spaced in-phase an...
متن کامل