Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850949
R. Beres, Xiongfei Wang, F. Blaabjerg, C. Bak, Marco Liserre
In this paper two promising LCL based filter topologies are evaluated against the well-known LCL with a damping resistor. The filters are designed for high power applications where the frequency modulation index is relatively low. The first topology is the selective resonant LCL filter which aim is to minimize the damping losses by bypassing the resistor at the fundamental and switching frequencies while preserving high attenuation at higher frequencies. A new design procedure is proposed for the selective resonant LCL filter. The presence of multi-tuned traps in the second topology aims to decrease the total size of the filter reactive elements while meeting current harmonic standards. It is found that selective resonant LCL filter provide much lower damping losses compared to the LCL filter with simple resistor topology. Additionally, for the trap topology a minimum switching frequency is determined which ensure that reduction in size of the filter is possible. The theoretical analysis is demonstrated by frequency analysis and time domain simulations.
{"title":"Comparative analysis of the selective resonant LCL and LCL plus trap filters","authors":"R. Beres, Xiongfei Wang, F. Blaabjerg, C. Bak, Marco Liserre","doi":"10.1109/OPTIM.2014.6850949","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850949","url":null,"abstract":"In this paper two promising LCL based filter topologies are evaluated against the well-known LCL with a damping resistor. The filters are designed for high power applications where the frequency modulation index is relatively low. The first topology is the selective resonant LCL filter which aim is to minimize the damping losses by bypassing the resistor at the fundamental and switching frequencies while preserving high attenuation at higher frequencies. A new design procedure is proposed for the selective resonant LCL filter. The presence of multi-tuned traps in the second topology aims to decrease the total size of the filter reactive elements while meeting current harmonic standards. It is found that selective resonant LCL filter provide much lower damping losses compared to the LCL filter with simple resistor topology. Additionally, for the trap topology a minimum switching frequency is determined which ensure that reduction in size of the filter is possible. The theoretical analysis is demonstrated by frequency analysis and time domain simulations.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130102591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850908
M. Iordache, L. Dumitriu, R. Voiculescu, D. Nicolae, N. Galan, S. Deleanu, D. Carpenter
This paper presents results regarding the influence of the magnetic core saturation on the steady state performances of the induction machine (IM). The assessment is done through simulations performed with an IM model developed with the use of state equations and modified nodal equations. When analyzing the induction motor operating at steady state, we've considered a modified version of the well-known Π (Steinmetz) per-phase equivalent circuit. In the modified circuit, the magnetizing inductance is considered as a current-controlled nonlinear inductor, while the rotor resistor as a time-variable resistor. For simulations we used two software packages: ENCAP (Electrical Nonlinear Circuit Analysis, which is based upon modified nodal equations) and SYSEG (Symbolic State Equation Generation, which is based upon state equations). The state equations can be integrated through an existing routine from MATLAB/Simulink package. The features of the above mentioned programs include the Fourier analysis capabilities, with the direct application to calculating the harmonics of every order present in the current and voltage waveforms. Following the computing of harmonic content, we assessed the steady state characteristics (power factor, efficiency, etc) of the induction motor.
{"title":"Saturated induction machine steady-state performance assessment through simulations","authors":"M. Iordache, L. Dumitriu, R. Voiculescu, D. Nicolae, N. Galan, S. Deleanu, D. Carpenter","doi":"10.1109/OPTIM.2014.6850908","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850908","url":null,"abstract":"This paper presents results regarding the influence of the magnetic core saturation on the steady state performances of the induction machine (IM). The assessment is done through simulations performed with an IM model developed with the use of state equations and modified nodal equations. When analyzing the induction motor operating at steady state, we've considered a modified version of the well-known Π (Steinmetz) per-phase equivalent circuit. In the modified circuit, the magnetizing inductance is considered as a current-controlled nonlinear inductor, while the rotor resistor as a time-variable resistor. For simulations we used two software packages: ENCAP (Electrical Nonlinear Circuit Analysis, which is based upon modified nodal equations) and SYSEG (Symbolic State Equation Generation, which is based upon state equations). The state equations can be integrated through an existing routine from MATLAB/Simulink package. The features of the above mentioned programs include the Fourier analysis capabilities, with the direct application to calculating the harmonics of every order present in the current and voltage waveforms. Following the computing of harmonic content, we assessed the steady state characteristics (power factor, efficiency, etc) of the induction motor.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129666738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850905
C. Freitag, T. Leibfried
In this paper a hysteresis model for electrical steel based on a numerical Fourier expansion of the magnetic field as function of magnetic polarization and frequency is proposed. The model setup relies on measured data. A single sheet tester is used for gauging hysteresis curves from minor to major loops with a frequency range starting at 50 Hz up to 250 Hz. The polarization is controlled to be cosinusoidal, as required by the standard IEC 60404-3. Whereas the magnetic polarization has a cosine waveform the corresponding magnetic field has a non-sinusoidal waveform. As a matter of the non-linear dependence between polarization and field, all harmonics are part of the magnetic field. A Fourier analysis of the magnetic field delivers harmonics as summation of cosine and sine waves. Two relationships can be found: one between the amplitudes of these waves and the amplitude of the polarization and another between the amplitudes of these waves and the frequency of the polarization. They are described via cubic spline interpolation. With an interpolation for each harmonic, the magnetic field is created as a sum of cosine and sine functions. Measured and modeled hysteresis loops are compared. The error of the model is determined. Finally, a hysteresis model for electrical steel is developed which is able to calculate a magnetic field for arbitrary polarization amplitudes and frequencies. Measured and modeled hysteresis loops are compared. The error of the model is determined. Finally, a hysteresis model for electrical steel is developed which is able to calculate a magnetic field for arbitrary polarization amplitudes and frequencies.
{"title":"Advanced magnetic hysteresis model describing polarization and frequency dependence","authors":"C. Freitag, T. Leibfried","doi":"10.1109/OPTIM.2014.6850905","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850905","url":null,"abstract":"In this paper a hysteresis model for electrical steel based on a numerical Fourier expansion of the magnetic field as function of magnetic polarization and frequency is proposed. The model setup relies on measured data. A single sheet tester is used for gauging hysteresis curves from minor to major loops with a frequency range starting at 50 Hz up to 250 Hz. The polarization is controlled to be cosinusoidal, as required by the standard IEC 60404-3. Whereas the magnetic polarization has a cosine waveform the corresponding magnetic field has a non-sinusoidal waveform. As a matter of the non-linear dependence between polarization and field, all harmonics are part of the magnetic field. A Fourier analysis of the magnetic field delivers harmonics as summation of cosine and sine waves. Two relationships can be found: one between the amplitudes of these waves and the amplitude of the polarization and another between the amplitudes of these waves and the frequency of the polarization. They are described via cubic spline interpolation. With an interpolation for each harmonic, the magnetic field is created as a sum of cosine and sine functions. Measured and modeled hysteresis loops are compared. The error of the model is determined. Finally, a hysteresis model for electrical steel is developed which is able to calculate a magnetic field for arbitrary polarization amplitudes and frequencies. Measured and modeled hysteresis loops are compared. The error of the model is determined. Finally, a hysteresis model for electrical steel is developed which is able to calculate a magnetic field for arbitrary polarization amplitudes and frequencies.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129872972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850882
I. Vlad, A. Câmpeanu, S. Enache, M. Enache
Very important are the energy analyses at the rheostatic starting of the existing wound rotor three-phase asynchronous motors, used for driving the long belt-type carriers, which have a difficult and long-duration starting. A factory producing static converters proposes to the customer a modernization of the starting by using a single-phase rheostat and a three-phase bridge in the rotor. That is why, the authors of the paper have carried out this study which analyzes the classical rheostatic starting and the starting proposed as a modernization. The investment aspect and the costs of the whole starting period have been analyzed on the basis of the data filled in the technical card of the machine. The paper contains some simulations with quantitative and qualitative information regarding the electrical energy losses and the duration of the starting, which are an important percent in the operation expenses. The modernization proposed by that factory for the asynchronous motor analyzed here means that the expenses afferent to the starting process exceed with 10.7% the existing variant. The measurements performed in the laboratory for the rheostatic starting of a low power asynchronous motor, attest the validity of the mathematical model and of the simulations presented in the paper.
{"title":"Energy aspects and monitoring of asynchronous motors starting","authors":"I. Vlad, A. Câmpeanu, S. Enache, M. Enache","doi":"10.1109/OPTIM.2014.6850882","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850882","url":null,"abstract":"Very important are the energy analyses at the rheostatic starting of the existing wound rotor three-phase asynchronous motors, used for driving the long belt-type carriers, which have a difficult and long-duration starting. A factory producing static converters proposes to the customer a modernization of the starting by using a single-phase rheostat and a three-phase bridge in the rotor. That is why, the authors of the paper have carried out this study which analyzes the classical rheostatic starting and the starting proposed as a modernization. The investment aspect and the costs of the whole starting period have been analyzed on the basis of the data filled in the technical card of the machine. The paper contains some simulations with quantitative and qualitative information regarding the electrical energy losses and the duration of the starting, which are an important percent in the operation expenses. The modernization proposed by that factory for the asynchronous motor analyzed here means that the expenses afferent to the starting process exceed with 10.7% the existing variant. The measurements performed in the laboratory for the rheostatic starting of a low power asynchronous motor, attest the validity of the mathematical model and of the simulations presented in the paper.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130808565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850953
A. Argeseanu, Florin Valentin Traian Nica, E. Ritchie, K. Leban
This paper proposes a new construction for transverse flux machines (TFM) using a rounded surfaces core geometry. The new concept has been developed for TFM with U core geometry. In this case a new analytic design procedure was proposed. The analytic design of the new TFM construction is further improved by FEM modelling and analysis. Using the new concept, a significant reduction of the active materials is obtained. The innovative geometry also provides a uniform magnetic field in the core structure. According to the comparison of both the TFM with prismatic and rounded core geometries the new proposed concept is more attractive for the direct-drive wind turbine application.
{"title":"A new geometrical construction using rounded surfaces proposed for the transverse flux machine for direct drive wind turbine","authors":"A. Argeseanu, Florin Valentin Traian Nica, E. Ritchie, K. Leban","doi":"10.1109/OPTIM.2014.6850953","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850953","url":null,"abstract":"This paper proposes a new construction for transverse flux machines (TFM) using a rounded surfaces core geometry. The new concept has been developed for TFM with U core geometry. In this case a new analytic design procedure was proposed. The analytic design of the new TFM construction is further improved by FEM modelling and analysis. Using the new concept, a significant reduction of the active materials is obtained. The innovative geometry also provides a uniform magnetic field in the core structure. According to the comparison of both the TFM with prismatic and rounded core geometries the new proposed concept is more attractive for the direct-drive wind turbine application.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130818649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6851010
M. Baba, C. Lascu, I. Boldea, F. Blaabjerg
This paper presents a control strategy for four switch three-phase Z-source Inverter with parallel and series Z-source network fed 0.5 kW induction motor drive with V/f control and the algorithm to control the dc boost, split capacitor voltage balance and the ac output voltage. The proposed control algorithm is validated through simulation and experiment.
{"title":"Parallel and series 4 switch Z-source converters in induction motor drives","authors":"M. Baba, C. Lascu, I. Boldea, F. Blaabjerg","doi":"10.1109/OPTIM.2014.6851010","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6851010","url":null,"abstract":"This paper presents a control strategy for four switch three-phase Z-source Inverter with parallel and series Z-source network fed 0.5 kW induction motor drive with V/f control and the algorithm to control the dc boost, split capacitor voltage balance and the ac output voltage. The proposed control algorithm is validated through simulation and experiment.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117121182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6851004
S. Mischie
The paper presents the acoustic source localization in a 2D rectangular room by using the measured acoustic impulse response. Two cases are considered: a corner of a room and a corridor. In each case, a theoretical analysis based on image source model is presented. To identify the source position, until some ambiguities, a single acoustic impulse response is required. To overcome these ambiguities, two additional impulse responses are needed. The three impulse responses can be obtained in the same time or by sequential measurements, two at a time. Experimental results obtained by real measurements which prove the theoretical ideas are presented.
{"title":"On acoustic source localization in a reverberant environment based on image method","authors":"S. Mischie","doi":"10.1109/OPTIM.2014.6851004","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6851004","url":null,"abstract":"The paper presents the acoustic source localization in a 2D rectangular room by using the measured acoustic impulse response. Two cases are considered: a corner of a room and a corridor. In each case, a theoretical analysis based on image source model is presented. To identify the source position, until some ambiguities, a single acoustic impulse response is required. To overcome these ambiguities, two additional impulse responses are needed. The three impulse responses can be obtained in the same time or by sequential measurements, two at a time. Experimental results obtained by real measurements which prove the theoretical ideas are presented.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125827513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6851000
M. Krug, Johannes Hartmann, L. Groll, U. Gengenbach, J. Nagel, G. Bretthauer
This paper describes the design of a digital, model-based dual-mode controller for a low-power, synchronous buck converter for battery-powered applications. In feedforward mode, the controller drives to new operating points as fast as possible without exceeding the maximum allowed battery current. The desired output voltage can be determined digitally and can be changed during operation time for dynamic voltage scaling (DVS) capability. In feedback mode, a significant reduction of the analog to digital converter (ADC) sampling rate is achieved by using a model-based approach. The model also estimates the load current, thus no current sensing is required. Furthermore, the model preserves the output voltage from limit cycles, although a low-resolution pulse width modulation (PWM) is used. A gain-scheduling scheme of the PI controller optimizes the control performance of the nonlinear behavior of the converter and keeps the adjustment energy after a load step in a range the battery can accomplish. Known load changes of the application are additionally taken into account to further improve voltage stability. The control algorithm has been implemented in a field programmable gate array (FPGA) and is tested together with a buck converter. ADC sampling rate is chosen 10x smaller than switching frequency of the converter and a battery with a maximum current drain of 40mA is used. The transient load response shows a maximum voltage drop of 10mV for known and 80mV for unknown load steps with a recovery time of 70μs. Efficiency of low-power switching regulators is improved over conventional digital designs by using slow ADCs and a low-resolution PWM.
{"title":"Model-based dual-mode controller for low-power buck converters","authors":"M. Krug, Johannes Hartmann, L. Groll, U. Gengenbach, J. Nagel, G. Bretthauer","doi":"10.1109/OPTIM.2014.6851000","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6851000","url":null,"abstract":"This paper describes the design of a digital, model-based dual-mode controller for a low-power, synchronous buck converter for battery-powered applications. In feedforward mode, the controller drives to new operating points as fast as possible without exceeding the maximum allowed battery current. The desired output voltage can be determined digitally and can be changed during operation time for dynamic voltage scaling (DVS) capability. In feedback mode, a significant reduction of the analog to digital converter (ADC) sampling rate is achieved by using a model-based approach. The model also estimates the load current, thus no current sensing is required. Furthermore, the model preserves the output voltage from limit cycles, although a low-resolution pulse width modulation (PWM) is used. A gain-scheduling scheme of the PI controller optimizes the control performance of the nonlinear behavior of the converter and keeps the adjustment energy after a load step in a range the battery can accomplish. Known load changes of the application are additionally taken into account to further improve voltage stability. The control algorithm has been implemented in a field programmable gate array (FPGA) and is tested together with a buck converter. ADC sampling rate is chosen 10x smaller than switching frequency of the converter and a battery with a maximum current drain of 40mA is used. The transient load response shows a maximum voltage drop of 10mV for known and 80mV for unknown load steps with a recovery time of 70μs. Efficiency of low-power switching regulators is improved over conventional digital designs by using slow ADCs and a low-resolution PWM.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"75 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114254672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850995
Boruz Mircea Alexandru, M. Mihai, Ciontu Marian, Mircea Ion
This paper aims to develop and update the methodology for calculating the stress to which the internal insulation of power transformer is subjected during lightning impulse test. Power transformer internal isolation consists of insolating intervals of oil impregnated paper, transformer board and oil. In whole, the transformer's insulation must withstand the voltage testing levels prescribed by the standards. One of the methods for determining the internal stress of various parts of the power transformer's insulation is by using mathematical models.
{"title":"Calculation methods for lightning impulse voltage distribution in power transformers","authors":"Boruz Mircea Alexandru, M. Mihai, Ciontu Marian, Mircea Ion","doi":"10.1109/OPTIM.2014.6850995","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850995","url":null,"abstract":"This paper aims to develop and update the methodology for calculating the stress to which the internal insulation of power transformer is subjected during lightning impulse test. Power transformer internal isolation consists of insolating intervals of oil impregnated paper, transformer board and oil. In whole, the transformer's insulation must withstand the voltage testing levels prescribed by the standards. One of the methods for determining the internal stress of various parts of the power transformer's insulation is by using mathematical models.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125963440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-22DOI: 10.1109/OPTIM.2014.6850985
B. Ulejczyk
A dielectric barrier discharge powered by pulsed power supply system was used for the decomposition of tetrachloromethane, trichloromethane and trichloroethylene. The study was performed in atmospheric air with concentration of water vapor 0.4%. The effect of specific energy on overall halocarbons conversion and selectivity of halocarbons conversion to carbon dioxide, carbon monooxide, chlorine and hydrogen chloride was studied. In studied system the increase of the specific energy increased the selectivity of halocarbons conversion to carbon dioxide and chlorine. For the specific energy ~7 kJ/mol, the maximum conversions of tetrachloromethane, trichloromethane and trichlorothylene were 66, 60 and 93% respectively.
{"title":"Decomposition of halocarbons in the pulsed dielectric barrier discharge","authors":"B. Ulejczyk","doi":"10.1109/OPTIM.2014.6850985","DOIUrl":"https://doi.org/10.1109/OPTIM.2014.6850985","url":null,"abstract":"A dielectric barrier discharge powered by pulsed power supply system was used for the decomposition of tetrachloromethane, trichloromethane and trichloroethylene. The study was performed in atmospheric air with concentration of water vapor 0.4%. The effect of specific energy on overall halocarbons conversion and selectivity of halocarbons conversion to carbon dioxide, carbon monooxide, chlorine and hydrogen chloride was studied. In studied system the increase of the specific energy increased the selectivity of halocarbons conversion to carbon dioxide and chlorine. For the specific energy ~7 kJ/mol, the maximum conversions of tetrachloromethane, trichloromethane and trichlorothylene were 66, 60 and 93% respectively.","PeriodicalId":298237,"journal":{"name":"2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"418 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133437898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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