Wound rotor induction machine with an excitation from capacitor energy caused by slip power

Plakhtyna, Omelyan; Kuznyetsov, Oleksiy

doi:10.1109/ukrcon.2017.8100508

Cited by 1 publication

(3 citation statements)

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“…us, it has been successfully applied for the real-time emulation of a synchronous machine [19,20]. In the current work, we summarize the results reported earlier by us in [21][22][23] as well as deepen the mathematical background of our previous works.…”

Section: Introductionmentioning

confidence: 71%

“…Although the detailed description of the study comes outside the scope of the present work, we would like to demonstrate the numerical and computer models' design algorithm for this case study. e analytical expressions and experiments related to the case study were provided by us in [23]. Figure 3(b) is based on the ideas described in [22].…”

Section: Case Study: Doubly Fed Induction Machine With the Fullmentioning

confidence: 99%

“…e matrix of equivalent resistances R s is defined after(23) (5). Average values of potentials of IM outer terminals at the integration step (vectors v 1 and v 2 ) are defined.…”

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confidence: 99%

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Mathematical Model of a Three‐Phase Induction Machine in a Natural abc Reference Frame Utilizing the Method of Numerical Integration of Average Voltages at the Integration Step and Its Application to the Analysis of Electromechanical Systems

Kuznyetsov

2019

Mathematical Problems in Engineering

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Recent advances in the real-time simulation of electric machines are linked with the increase in the operation speed of the numerical models retaining the calculation accuracy. We propose utilizing the method of average voltages at the integration step (AVIS) for the design of a three-phase induction machine’s model in its natural abc reference frame. The method allows for avoiding rotational e.m.f. calculation at every step; in turn, the electromagnetic energy conversion is accounted by the change of flux-linkage. The model is integrated into the object-oriented environment in C++ for designing the computer models of electromechanical systems. The design of the model of an electromechanical system utilizing the proposed approach is explained in an example. The behavior of the numerical models of a three-phase IM has been compared for the set of conventional numerical methods as well as first- and second-order AVIS. It has been demonstrated that both first- and second-order AVIS methods are suitable tools for high-speed applications, namely, AVIS provides higher maximum possible integration step (e.g., first-order AVIS provides 4 times higher than the second-order Runge–Kutta method, and the second-order AVIS provides 2.5 times higher than the first-order method). Therefore, we consider the most preferable order of the AVIS method for the high-speed applications is the second order, while the first order may be a suitable alternative to increase the calculation speed by 30% with the acceptable decrease in the accuracy.

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Section: Introductionmentioning

confidence: 71%

Section: Case Study: Doubly Fed Induction Machine With the Fullmentioning

confidence: 99%