Dynamic emulation of mechanical loads using a vector-controlled induction motor-generator set

Akpolat, Zühtü Hakan; Asher, G.M.; Clare, John

doi:10.1109/41.753776

Cited by 113 publications

(65 citation statements)

References 6 publications

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“…Thus, the methods with closed-loop approaches are being developed and they have been called as dynamic load emulation. The very first method of the dynamic emulation uses an inverse dynamic model of the emulated load, which brings many problems that were explained in [6]. The first method of dynamic emulation with very good results was described in [6], [7] and later in [8].…”

Section: Introductionmentioning

confidence: 99%

“…The very first method of the dynamic emulation uses an inverse dynamic model of the emulated load, which brings many problems that were explained in [6]. The first method of dynamic emulation with very good results was described in [6], [7] and later in [8]. But originally it was developed for the test rig which is considered to have only linear dynamics.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Emulation of Mechanical Loads—An Approach Based on Industrial Drives' Features

Kyslan

Ďurovský

2013

Automatika

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Original scientific paperDynamic emulation of mechanical loads presents a modern and interesting approach for testing and validating performance of electrical drives without a real mechanical load included in the test rig. The paper presents an approach to dynamic emulation of mechanical loads when the load torque and inertia mass of emulated load can be significantly greater than that of laboratory test rig. Closed-loop control of load torque and feedforward compensation of inertia and friction torques are used in a test rig. The approach is focused on the use with standard industrial converters. The described method can be used for design and validation of speed control algorithms in mechatronic applications. Experimental results with the emulation of linear loads are presented in end of the paper.Key words: Dynamic emulation, Test rig, Industrial drive, RT-LAB Dinamička simulacija mehaničkih opterećenja -pristup zasnovan na svojstvima industrijskih elektromotornih pogona. Dinamička simulacija mehaničkih opterećenja predstavlja moderan i zanimljiv pristup testiranju i validaciji ponašanja elektromotornih pogona bez uključenog stvarnog mehaničkog opterećenja u eksperimentalni postav. U radu je predstavljen pristup s dinamičkom simulacijom mehaničkih opterećenja za slučaj kada moment tereta ili moment tromosti simuliranog tereta mogu biti daleko veći od onih dostupnih u eksperimentalnom postavu. U postavu se koristi upravljanje momentom tereta u zatvorenoj petlji uz unaprijednu petlju kompenzacije momenta tromosti i momenata trenja. Pristup je usmjeren na upotrebu standardnih industrijskih pretvarača. Opisana metoda može se koristiti za sintezu i validaciju algoritama za upravljanje po brzini u mehatroničkim primjenama. U radu su predstavljeni eksperimentalni rezultati za slučaj simulacije linearnih tereta.Ključne riječi: dinamička simulacija tereta, eksperimentalni postav, industrijski elektromotorni pogon, RT-LAB

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Emulation of Mechanical Loads—An Approach Based on Industrial Drives' Features

Kyslan

Ďurovský

2013

Automatika

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“…Examples of these industrial applications include reciprocating pumps, escalators, large washing machines and compressors (5). Even if the parameters of such loads are approximately known, the ability to evaluate and test such applications off-site would be advantageous (6).…”

Section: Introductionmentioning

confidence: 99%

“…However, in practice, noise considerations prohibit the use of small time steps for the computation of the inverse dynamics and discretization effects lead to stability problems. Further, it may not always be possible to derive the inverse dynamics of some nonlinear loads (6).…”

Section: Introductionmentioning

confidence: 99%

Neuro-Fuzzy Control of a Dynamometer for the Emulation of Nonlinear Mechanical Loads

Gökbulut¹,

Dandil²

2006

JPOLTEC

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This paper proposes a neuro-fuzzy controller for a vector controlled load machine (dynamometer) which is mechanically coupled to a drive machine for the emulation of nonlinear loads. The main objective is to provide a system for testing of high performance electrical drives under nonlinear loads. The proposed emulation strategy is based on the model reference control approach using an on-line trained Neuro-Fuzzy Controller (NFC). The emulation is placed in the closed speed loop of the drive machine. Varieties of dynamic load models which are the nonlinear functions of the shaft speed are successfully emulated and the generalization capability of the trained NFC is shown. Simulation results showing the excellent performance of the proposed emulation strategy are presented.Keywords: Neuro-fuzzy controller, mechanical load emulation, permanent magnet synchronous motor (PMSM). Doğrusal Olmayan Mekanik Yüklerin Emulasyonu içinDinamometrelerin Sinirsel-Bulanık Denetimi ÖZETBu makalede, doğrusal olmayan yüklerin emulasyonunu yapmak amacıyla bir elektrik motoruna mekanik kuplaj elemanı ile bağlanan vektör denetimli yük makinesinin (dinamometre) sinirsel bulanık ağlarla denetimi gerçekleştirilmiştir. Yük emulasyonun temel amacı, elektrik sürücü sistemlerini test etmek için yük makinesini denetlemek suretiyle arzu edilen bir yük elde etmektir. Önerilen emulasyon yönteminde, gerçek zamanlı olarak eğitilen Sinirsel Bulanık Denetleyiciler (SBD) kullanarak model referans denetim yaklaşımı kullanılmıştır. Sürücü makinenin kapalı çevrim hız denetim döngüsü içerisinde yük emulasyonu gerçekleştirilmiştir. Rotor hızının doğrusal olmayan fonksiyonları ile tanımlanan çeşitli dinamik yüklerin emulasyonu yapılmış ve eğitilmiş SBD' nin farklı yük modellerini genelleme yeteneği gösterilmiştir. Simulasyon sonuçları, önerilen emulasyon yönteminin performansının son derecede iyi olduğunu göstermektedir.Anahtar Kelimeler: Sinirsel bulanık denetleyiciler (SBD), Mekanik yük emulasyonu, Kalıcı mıknatıslı senkron motorlar (KMSM).

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“…The rotor flux is calculated from the machine voltages and currents ("Voltage Model" in Figure 1). The α-β components of the flux are used to calculate the electrical angle θ e for the vector rotators [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. The output is Δτ r which is added to drive the estimation of the rotor time constant to the correct value.…”

Section: Introductionmentioning

confidence: 99%

Sensorless Vector Control of Induction Generators for Variable-Speed Wind Turbines Using Micro-2407

Parida¹,

Nanda²,

Mishra³

2012

EPE

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A sensorless vector-control strategy for an induction generator in a grid-connected wind energy conversion system is presented. The sensorless control system is based on a model reference adaptive system (MRAS) to estimate the rotational speed. In order to tune the MRAS observer and compensate for the parameter variation and uncertainties, a separate estimation of the speed is obtained from the rotor slot harmonics using an algorithm for spectral analysis. This algorithm can track fast dynamic changes in the rotational speed, with high accuracy. Two back to back pulse width modulated (PWM) inverters are used to interface the induction generator with the grid. The front-end converter is also vector controlled. The dc link voltage is regulated using a PI fuzzy controller. The proposed sensorless control strategy has been experimentally verified on a 2.5-kW experimentally set up with an induction generator driven by a wind turbine emulator. The emulation of the wind turbine is performed using a novel strategy that allows the emulation of highorder wind turbine models, preserving all of the dynamic characteristics. The experimental results show the high level of performance obtained with the proposed sensorless vector-control method.

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Dynamic emulation of mechanical loads using a vector-controlled induction motor-generator set

Cited by 113 publications

References 6 publications

Dynamic Emulation of Mechanical Loads—An Approach Based on Industrial Drives' Features

Dynamic Emulation of Mechanical Loads—An Approach Based on Industrial Drives' Features

Neuro-Fuzzy Control of a Dynamometer for the Emulation of Nonlinear Mechanical Loads

Sensorless Vector Control of Induction Generators for Variable-Speed Wind Turbines Using Micro-2407

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