Method for optimization of switching frequency in frequency converters
- Details
- Parent Category: 2021
- Category: Content №1 2021
- Created on 05 March 2021
- Last Updated on 05 March 2021
- Published on 30 November -0001
- Written by V.P.Nerubatskyi, O.A.Plakhtii, D.V.Tugay, D.A.Hordiienko
- Hits: 3663
Authors:
V.P.Nerubatskyi, orcid.org/0000-0002-4309-601X, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
O.A.Plakhtii, orcid.org/0000-0002-1535-8991, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
D.V.Tugay, orcid.org/0000-0003-2617-0297, O.M.Beketov National University of Urban Economy in Kharkiv, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
D.A.Hordiienko, orcid.org/0000-0002-0347-5656, Ukrainian State University of Railway Transport, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (1): 103 - 110
https://doi.org/10.33271/nvngu/2021-1/103
Abstract:
Purpose. To present a methodology for determining the optimal switching frequency in frequency converters and autonomous voltage inverters, the load of which is an asynchronous electric motor. The methodology is based on determining the dependences of static and dynamic power losses in the power switches of the inverter on the switching frequency and the dependence of power losses in the windings of an induction motor on the higher harmonics of currents, which also depend on the switching frequency.
Methodology. Polynomial approximation of the energy characteristics of power transistors. General provisions of the theory of electrical circuits. The determination of additional power losses in the windings of an induction motor from higher harmonics is based on analytical calculation and simulation in the Matlab/Simulink software environment and a specialized program from the manufacturer of power switches Mitsubishi MelcoSim5.1.
Findings. A method for optimizing the frequency of pulse-width modulation in frequency converters, the load of which is an asynchronous motor, is presented according to the criterion of the minimum total power losses in the power transistors of the inverter and the resistance of the motor windings. The proposed calculation technique allows determining the dependence of static and dynamic losses in power IGBT-transistors with a sufficiently high accuracy while being in the MelcoSim software environment. To calculate the losses in the motor, it is shown that the switching frequency of the power switches affects the harmonic distortion factor and the average value of the phase current of the induction motor. Provided that only the first harmonic of the current performs the useful action in an asynchronous motor, the dependence of additional power losses on the switching frequency is given.
Originality. A method for optimizing the frequency of pulse-width modulation by the criterion of minimum additional power losses in the resistance of the motor windings from higher harmonics of the current and static and dynamic losses in the power transistors of the inverter is presented. An analytical dependence of additional power losses in the active resistance of the windings of induction motors as a function of the harmonic distortion factor of the phase current of an autonomous voltage inverter is presented.
Practical value. The presented technique makes it possible to determine the optimal modulation frequency in frequency converters with asynchronous motors and to ensure the minimum total power losses and the maximum value of efficiency in the autonomous voltage inverter asynchronous motor system.
Keywords: switching frequency, higher current harmonics, power losses, coefficient of harmonic distortion, simulation modeling, frequency converter, asynchronous motor
References.
1.Blahnik,V., & Talla,J. (2016). Single-phase synchronization for traction active rectifier. International Conference on Applied Electronics (AE). https://doi.org/10.1109/ae.2016.7577233.
2.Plakhtii,O.A., Nerubatskyi,V.P., Kavun,V.Ye., & Hordiienko,D.A. (2019). Active single-phase four-quadrant rectifier with improved hysteresis modulation algorithm. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 93-98. https://doi.org/10.29202/nvngu/2019-5/16.
3.Ahmadzadeh,., Sabahi,., & Babaei,E. (2017). Modified PWM control method for neutral point clamped multilevel inverters. 14th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 765-768. https://doi.org/10.1109/ECTICon.2017.8096351.
4.Maurya,S., Mishra,D., Singh,K., Mishra,A.K., & Pandey,Y. (2019). An Efficient Technique to reduce Total Harmonics Distortion in Cascaded H-Bridge Multilevel Inverter. 2019 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT). https://doi.org/10.1109/icecct.2019.8869424.
5.Rezinkin,O., Rezinkina,M., Danyluk,A., & Tomashevskyi,R. (2019). Formation of high-voltage pulses with nanosecond fronts in low-impedance loads. 2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON), 464-467. https://doi.org/10.1109/UKRCON.2019.8880015.
6.Bouzida,A., Abdelli,R., & Ouadah,M. (2016). Calculation of IGBT power losses and junction temperature in inverter drive. 2016 8th International Conference on Modelling, Identification and Control (ICMIC), 768-773. https://doi.org/10.1109/icmic.2016.7804216.
7.Onederra,O., Kortabarria,I., deAlegria,I.M., Andreu,J., & Garate,J.I. (2017). Three-phase VSI optimal switching loss reduction using variable switching frequency. IEEE Transactions on Power Electronics, 32(8), 65706576. https://doi.org/10.1109/tpel.2016.2616583.
8.Plakhtii,O., Nerubatskyi,V., Khomenko,I., Tsybulnyk,V., & Syniavskyi,A. (2020). Comprehensive study of cascade multilevel inverters with three level cells. 2020 IEEE 7th International Conference on Energy Smart Systems (ESS), 277-282. https://doi.org/10.1109/ESS50319.2020.9160258.
9.Gervasio,F., Mastromauro,R., & Liserre,M. (2015). Power losses analysis of two-levels and three-levels PWM inverters handling reactive power. IEEE International Conference on Industrial Technology (ICIT), 1123-1128. https://doi.org/10.1109/icit.2015.7125248.
10.Rodder,S., Biswas,M., & Khan,Z. (2016). A modified PWM technique to improve total harmonic distirtion of multilevel inverter. 9th International Conference on Electrical and Computer Engineering (ICECE), 4654. https://doi.org/10.1109/ICECE.2016.7853970.
11.Martinez,C., Lazaro,A., Quesada,I., Lucena,C., Barrado,A., & Vazquez,R. (2012). THD minimization for railway applications through harmonic spectrum optimization. 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC). https://doi.org/10.1109/apec.2012.6166035.
12.Shobini,M.M., Kamala,J., & Rathna, R. (2017). Analysis and simulation of flying capacitor multilevel inverter using PDPWM strategy. 2017 International Conference on Innovative Mechanisms for Industry Applications (ICIMIA), 91-95. https://doi.org/10.1109/ICIMIA.2017.7975578.
13.Ferdowsi,F., Yazdankhah,A.S., & Rohani,H. (2014). Acombinative method to control output power fluctuations of large grid-connected photovoltaic systems. 2014 14th International Conference on Environment and Electrical Engineering. https://doi.org/10.1109/EEEIC.2014.6835875.
14.Plakhtii,O., Nerubatskyi,V., Sushko,D., Hordiienko,D., & Khoruzhevskyi,H. (2020). Improving the harmonic composition of output voltage in multilevel inverters under an optimum mode of amplitude modulation. Eastern-European Journal of Enterprise Technologies, 2(8(104)), 17-24. https://doi.org/10.15587/1729-4061.2020.200021.
15.Yang,S., Wang,P., & Tang,Y. (2017). Feedback linearization-based current control strategy for modular multilevel converters. IEEE Transactions on Power Electronics, 33(1), 161-174. https://doi.org/10.1109/TPEL.2017.2662062.
16.Plakhtii,O.A., Nerubatskyi,V.P., Hordiienko,D.A., & Khoruzhevskyi,H.A. (2020). Calculation of static and dynamic losses in power IGBT-transistors by polynomial approximation of basic energy characteristics. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (2), 82-88. https://doi.org/10.33271/nvngu/2020-2/082.
17.Shruti,K.K., Valsalan,T., & Poorani,S. (2017). Single phase active front end rectifier system employed in three phase variable frequency drive. International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering, 5(1), 121-129. https://doi.org/10.17148/IJIREEICE.
18.Artemenko,M.Y., Batrak,L.M., Polishchuk,S.Y., Mykhalskyi,V.M., & Shapoval,I.A. (2016). The effect of load power factor on the efficiency of three-phase four-wire power system with shunt active filter. 2016 IEEE 36th International Conference on Electronics and Nanotechnology (ELNANO). https://doi.org/10.1109/elnano.2016.7493067.
19.Kazakov,Yu.B., & Shvetsov,N.K. (2015). Calculated analysis of losses in steel asynchronous motors when powered by frequency converters with non-sinusoidal output voltage. ISUE Bulletin, 5, 1-5.
20.Petrenko,A.N., Tanyanskyi,V.I., & Petrenko,N.Y. (2012). Additional power loss in a frequency-controlled induction motor due to voltage higher harmonics. Electrical engineering & electromechanics, 5, 34-35.
21.Kazakov,Yu.B., & Shvetsov,N.K. (2017). Calculating analysis of steel losses in induction motors fed by frequency converters with non-sinusoidal output voltage. International conference Actual problems of electromechanics and electrical technologies APEET2017, 163-168. https://doi.org/10.17588/2072-2672.2015.5.042-046.
22.Lin,D., Zhou,P., Fu,W.N., Badics,Z., & Cendes,Z.J. (2004). A Dynamic Core Loss Model for Soft Ferromagnetic and Power Ferrite Materials in Transient Finite Element Analysis. IEEE Transactions on Magnetics, 40(2), 1318-1321. https://doi.org/10.1109/tmag.2004.825025.
Newer news items:
- Formation of motivational mechanism in strategic management of a diversified enterprise - 05/03/2021 00:36
- Strategic enterprise management based on the modeling of its economic security - 05/03/2021 00:36
- Institutional and socio-economic factors of the educational trend in Ukraine in the context of European integration - 05/03/2021 00:36
- Identification of globalization threats to the economic sovereignty of countries with transition economies - 05/03/2021 00:36
- Company business process optimization as an imperative of its economic security - 05/03/2021 00:36
- Investigation of the possibility of reducing errors in determining the coordinates of objects indoors by multi-frequency method - 05/03/2021 00:36
- Financing of environmental programs for industrial waste management in times of crisis - 05/03/2021 00:36
- Providing the environmental safety by increasing the efficiency of firefighting in unsheltered timber warehouses - 05/03/2021 00:36
- Improvement of the membrane-free electrolysis process of hydrogen and oxygen production - 05/03/2021 00:36
- Mathematical model for forecasting the process of electric power generation by photoelectric stations - 05/03/2021 00:36
Older news items:
- Experimental study on an overhead crane passing a rail track joint - 05/03/2021 00:36
- Shallow tunnel face stability analysis using finite elements - 05/03/2021 00:36
- Dynamic loads in self-aligning gear transmissions of heavy loaded machines - 05/03/2021 00:36
- A deformation mode in a cold rolling condition to provide the necessary texture of the Ti-3Al-2.5V alloy - 05/03/2021 00:36
- Kinetics of quartz sand and its mixtures drying by microwave radiation - 05/03/2021 00:36
- Direct method of studying heat exchange in multilayered bodies of basic geometric forms with imperfect heat contact - 05/03/2021 00:36
- Mathematical modeling of the surface roughness of the grinding wheel during straightening - 05/03/2021 00:36
- The method for determining the parameters of the diagrams of a truncated-wedge destruction of cylindrical samples of rocks - 05/03/2021 00:36
- Influence of technological process parameters on qualitative characteristics of coal thermolysis products - 05/03/2021 00:36
- Analytical studies on constrained particle settling velocity in a water suspension of fly ash from thermal power plants - 05/03/2021 00:36