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1
Content available Calculation of a Torque Ripple in Two-Phase Asynchronous Motor Supplied by a PWM Controlled Inverter
100%
Záskalický P.
Maszyny Elektryczne : zeszyty problemowe
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2013
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tom Nr 2(99)
163--166
EN
The paper deals with steady state analysis of electromagnetic torque ripples of a two-phase induction machine, which is supplied by an IGBT transistors half-bridge connected inverter. The inverter’s output voltage is controlled by a PWM of the input DC voltage. The complex Fourier series analysis of the inverter’s output voltage was made, to obtain a spectrum of the harmonic supply voltages. The different voltage harmonic was applied to the two-phase asynchronous machine model to obtain the electromagnetic torque waveforms for various operation conditions.
2
Content available Analytical Method of a Calculation of a Torque Ripple of a Two-Phase Asynchronous Motor Supplied by a PWM Controlled Inverter
100%
Záskalický P.
Maszyny Elektryczne : zeszyty problemowe
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2013
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tom Nr 4(100), cz. 2
131--135
EN
The paper deals with steady state calculation of torque and currents ripples of a two-phase asynchronous machine, which is supplied by an IGBT transistors half-bridge connected inverter. The inwerter output voltage is controlled by a PWM of the input DC voltage. The complex Fourier series analysis of the inverter output voltage was made, to obtain a spectrum of the harmonic supply voltages. The different voltage harmonic was applied to the two-phase induction machine model to obtain the electromagnetic torque and currents waveforms for various operation conditions.
3
Content available Analytical method of a calculation of a torque ripple a two-phase pmsm supplied by a pwm controlled inverter
100%
Záskalický P.
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tom Nr 1(94)
125-130
EN
The paper deal with steady-state analysis of a two-phase permanent magnet synchronous motor (PMSM) drive with a voltage-source inverter is presented. A complex Fourier series approach is used to predict the inverter output voltage and line current waveform. Assuming the output inverter's voltage is controlled by a pulse-width modulation (PWM). The permanent magnet synchronous motor model is obtained from its analogy to the fixed-excited synchronous motor. From the induced voltage and line current waveforms the electromagnetic torque ripple waveform is calculated.
4
Content available Torque ripple calculation of two-phase im supplied by three-leg VSI inverter
100%
Záskalický P.
Maszyny Elektryczne : zeszyty problemowe
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2017
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tom Nr 3 (115)
13--17
EN
The proposed paper deals with steady state estimation of a electromagnetic torque ripples and a current waveform of a two-phase induction motor (IM), which is supplied by an three-leg voltage source IGBT bridge connected inverter (VSI). The complex Fourier series analysis of the inverter’s output voltage was made, to obtain an analytical formula of supply voltage waveform. The space phasor theory has been applied to the two-phase induction machine model to obtain electromagnetic torque and supply current waveforms for various operation states.
5
Content available Study of current space phasor trajectory of the three-phase asynchronous motor with one phase open circuit fault
100%
Záskalický P.
Maszyny Elektryczne : zeszyty problemowe
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2016
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tom Nr 3 (111)
147--151
EN
The presented paper deals with the calculation of space phasor trajectory of the magnetization current of induction machine supplied by a converter under open-phase fault. To explore possibilities to reduce the impact of failure on the function of the machine is a winding node connected to zero point. Under open phase fault it is another possibility to improve behavior of the two-phase operation. There is still to apply a circular rotating magnetic field to the machine by imposing a 60o phase shift between the stator currents of the two supplied stator windings.
6
Content available remote Calculation of a Torque Ripple a Three-Phase Asynchronous Motor Supplied by a PWM Controlled Inverter
100%
Záskalický P.
Maszyny Elektryczne : zeszyty problemowe
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2014
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tom Nr 2(102)
53--58
EN
The paper deals with steady state analysis of electromagnetic torque ripples of a three-phase induction machine, which is supplied by an IGBT transistors bridge connected inverter. The inverter’s output voltage is controlled by a PWM of the input DC voltage. The complex Fourier series analysis of the inverter’s output voltage was made, to obtain a spectrum of the harmonic supply voltages. The different voltage harmonic was applied to the two-phase asynchronous machine model to obtain the electromagnetic torque waveforms for various operation conditions.
7
Content available Complex fourier series mathematical model of a universal motor supplied by an IGBT transistor
63%
Záskalický P. , Kaňuch J.
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tom Nr 1(94)
33-37
EN
The present contribution shows an analytical method of the calculus of the torque ripple and current waveforms of a universal motor supplied by an IGBT chopper. The chopper output voltage waveform is formulated by the Fourier series. The armature reaction of the motor is included in the calculus. The motor performance is computed using the circuit parameters determined by measurements. The calculated current waveforms are compared with the measured ones.
8
Content available Complex Fourier Series Mathematical Model of a Universal Motor Supplied by a Triac
63%
Záskalický P. , Kaňuch J.
Maszyny Elektryczne : zeszyty problemowe
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2013
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tom Nr 2(99)
159--162
EN
The present contribution shows an analytical method of the calculus of the torque ripple and current waveforms of a universal motor supplied by a triac directly from the network. The triac output voltage waveform is formulated by the complex Fourier series. The armature reaction of the motor is included in the calculus. The motor performance is computed using the circuit parameters determined by measurements. The calculated current waveforms are compared with the measured ones.
9
Content available Control of hybrid and electrical vehicle with five-phase AC motor
51%
Dobrucký B. , Záskalický P. , Pavlásek P.
Autobusy : technika, eksploatacja, systemy transportowe
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2017
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tom R. 18, nr 6
1191--1195, CD
EN
The paper deals with control of series HEV hybrid- and BEV electric vehicles including electronic differential and five-phase traction induction electrical motors. Possibilities of dynamical and directional servo control are greater because of five-phase machines offer some inherent advantages over their three-phase counterpart. Major advantages of using a five-phase machine instead of three-phase ones consists in their higher torque density, greater efficiency, and fault tolerance. Other advantage includes reduced electromagnetic torque pulsation, and reduction in the required rating per inverter leg. Noise characteristics of the five-phase drives are better when compared with the three-phase ones.
PL
W artykule omówiono sterowanie pojazdami elektrycznymi hybrydowymi i HEV typu HEV, w tym elektronicznymi i pięciofazowymi silnikami indukcyjnymi trakcyjnymi. Możliwości dynamicznego i kierunkowego sterowania serwomechanizmem są większe dzięki maszynom pięciofazowym oferującym pewne zalety związane z ich odpowiednikiem trójfazowym. Główne zalety używania maszyny pięciofazowej zamiast trójfazowej polega na ich wyższej gęstości momentu obrotowego, większej wydajności i odporności na uszkodzenia. Inną zaletą jest zmniejszenie pulsacji momentu elektromagnetycznego i zmniejszenie wymaganej wartości znamionowej na stopę falownika. Charakterystyka hałasu napędów pięciodniowych jest lepsza w porównaniu z silnikami trójfazowymi.
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