Dynamic characterization of switched reluctance motor by computer-aided design and electromagnetic transient simulation

Currently, the level of industrial development is determined by the intellectual capacity of the equipment used. To increase the energy efficiency of production in various industries, it is necessary to introduce automated electric drives based on promising switched-reluctance motors. The geometric parameters of the active part of the switched-reluctance motor were calculated. As a criterion, the maximum value of the average value of the electromagnetic moment for the switching period was taken as the basis. Optimal design was carried out by means of the computer-aided design program developed by the author in co-authorship. It, in turn, includes optimization algorithms based on stochastic and deterministic methods. The developed program for optimizing the active part of the switched-reluctance motor was implemented using the Matlab application software package, which directly interacts with the FEMM program for calculating and visualizing electromagnetic processes. Finding the most energy-efficient engine geometry was performed in two stages, in order to determine the geometric parameters of the engine tooth zone that have a dominant influence on the value of the electromagnetic moment, as well as to ensure a guaranteed finding of the global extremum of the target function.

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Design and Dynamic Modelling of PV-Battery Hybrid Systems for Custom Electromagnetic Transient Simulation

Electronics ◽

10.3390/electronics9101651 ◽

2020 ◽

Vol 9 (10) ◽

pp. 1651 ◽

Cited By ~ 3

Author(s):

Seok-Il Go ◽

Joon-Ho Choi

Keyword(s):

Power Systems ◽

Hybrid Systems ◽

Hybrid System ◽

Computer Aided Design ◽

Control Method ◽

Dynamic Modelling ◽

Transient Simulation ◽

Electromagnetic Transients ◽

Electromagnetic Transient ◽

Electromagnetic Transient Simulation

Battery energy storage systems (BESS) can alleviate the unstable effects of intermittent renewable energy systems, such as solar and wind power systems. In addition, a BESS can level the load of the existing utility grid. The penetration rate of this type of system is expected to increase in the future power grid, i.e., the microgrid. In this paper, a modeling technique is proposed that allows users to customize the photovoltaic (PV) battery hybrid systems. A dynamic power system computer-aided design/electromagnetic transients including DC system (PSCAD/EMTDC) model of a PV battery hybrid system is presented in this paper. Dynamic modeling of PV arrays, BESS, maximum power point tracking (MPPT) algorithms, and bidirectional converters are provided as well. The PV model, battery model, and MPPT control model are designed using a user-defined model (UDM) for custom electromagnetic transient simulation. A control method for stabilizing the output of the PV battery hybrid system is proposed. Finally, a PSCAD/EMTDC simulation is conducted to verify the effectiveness of the operating algorithm.

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Detection of Electromechanical Wave Propagation Using Synchronized Phasor Measurements

International Journal of Emerging Electric Power Systems ◽

10.1515/ijeeps-2013-0155 ◽

2014 ◽

Vol 15 (1) ◽

pp. 69-75

Author(s):

Prakash Suryawanshi ◽

Sanjay Dambhare ◽

Ashutosh Pramanik

Keyword(s):

Wave Propagation ◽

Computer Aided Design ◽

Time Delays ◽

Ring System ◽

Electrical Network ◽

Electromagnetic Transient ◽

Propagation Analysis ◽

Electromagnetic Transient Simulation ◽

The Difference ◽

Aided Design

Abstract Considering electrical network as a continuum has become popular for electromechanical wave analysis. This paper reviews the concept of electromechanical wave propagation. Analysis of large number of generator ring system will be an easy way to illustrate wave propagation. The property of traveling waves is that the maximum and minimum values do not occur at the same time instants and hence the difference between these time delays can be easily calculated. The homogeneous, isotropic 10 generator ring system is modeled using electromagnetic transient simulation programs. The purpose of this study is to investigate the time delays and wave velocities using Power System Computer Aided Design (PSCAD)/Electromagnetic Transient Program (EMTP). The disturbances considered here are generator disconnections and line trips.

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