Pub Date : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113044
Ritika Agarwal, Anjali Uppal, Pavitra Sharma, C. Narasimhan, Sohan S. Beldar, Jeyabalan Velandy
Ester oils are becoming potential alternatives for mineral oil due to their better biodegradability, higher fire point, higher moisture tolerance and continuous overloading capabilities. With the increase in its popularity, it becomes important for transformer, reactor, instrument transformer manufacturer and power utilities to understand the complete insulating properties of natural esters and their impact on insulation design. In this paper, behavior of natural ester oil under positive and negative polarities of lightning impulse waveshape are analyzed with respect to mineral oil. The breakdown strength of the mineral oil is considered as a benchmark. Two types of natural esters are used for comparison of impulse waveshape of polarity results with mineral oil. The impulse tests are performed with vertical configuration test cell under completely divergent field using sphere-needle electrode configuration with various gaps between the electrodes. The impulse breakdown data obtained from all the impulse polarity tests are statistically analyzed by 3 parameter weibull distribution in order to establish the 1% breakdown voltages for natural ester oil and mineral oil. Furthermore, electrical stress analysis is performed based on 1% breakdown voltages resulting in calculation of utilization factor by using FEM technique.
{"title":"Behavior of Natural Ester Oil under Negative and Positive Lightning Impulse Stress","authors":"Ritika Agarwal, Anjali Uppal, Pavitra Sharma, C. Narasimhan, Sohan S. Beldar, Jeyabalan Velandy","doi":"10.1109/PIICON49524.2020.9113044","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113044","url":null,"abstract":"Ester oils are becoming potential alternatives for mineral oil due to their better biodegradability, higher fire point, higher moisture tolerance and continuous overloading capabilities. With the increase in its popularity, it becomes important for transformer, reactor, instrument transformer manufacturer and power utilities to understand the complete insulating properties of natural esters and their impact on insulation design. In this paper, behavior of natural ester oil under positive and negative polarities of lightning impulse waveshape are analyzed with respect to mineral oil. The breakdown strength of the mineral oil is considered as a benchmark. Two types of natural esters are used for comparison of impulse waveshape of polarity results with mineral oil. The impulse tests are performed with vertical configuration test cell under completely divergent field using sphere-needle electrode configuration with various gaps between the electrodes. The impulse breakdown data obtained from all the impulse polarity tests are statistically analyzed by 3 parameter weibull distribution in order to establish the 1% breakdown voltages for natural ester oil and mineral oil. Furthermore, electrical stress analysis is performed based on 1% breakdown voltages resulting in calculation of utilization factor by using FEM technique.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130596818","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112961
Muhammed Faisal Rahman, P. Nirgude
The presence of particle in transformer oil can cause significant problem to insulation system of transformer which can lead to a partial discharge inception and further extend to a complete breakdown. Many studies primarily considered the spherical particle for the investigation to understand the effect of particle in oil. Contribution towards understanding the effect of irregular-shaped particle in oil are very limited. This paper introduces a modified general equation for irregular-shaped particle motion in transformer oil. Additionally, the charge transfer and discharge mechanism of particle under uniform and non-uniform field is also investigated. The newly modified equation is more general in nature and can be used for any shape of particle motion in oil whereas the existing equation mainly explained for spherical particle. The electrostatic Coulomb force experienced on the irregular-shaped particle explicitly discussed in the presented work. The modified equation also includes the electric field gradient force component and thus can be considered valid for any particle in transformer oil under different type of field configurations.
{"title":"Irregular-shaped Particle Motion and Charge Transfer Mechanism in Transformer Oil under Varying Field","authors":"Muhammed Faisal Rahman, P. Nirgude","doi":"10.1109/PIICON49524.2020.9112961","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112961","url":null,"abstract":"The presence of particle in transformer oil can cause significant problem to insulation system of transformer which can lead to a partial discharge inception and further extend to a complete breakdown. Many studies primarily considered the spherical particle for the investigation to understand the effect of particle in oil. Contribution towards understanding the effect of irregular-shaped particle in oil are very limited. This paper introduces a modified general equation for irregular-shaped particle motion in transformer oil. Additionally, the charge transfer and discharge mechanism of particle under uniform and non-uniform field is also investigated. The newly modified equation is more general in nature and can be used for any shape of particle motion in oil whereas the existing equation mainly explained for spherical particle. The electrostatic Coulomb force experienced on the irregular-shaped particle explicitly discussed in the presented work. The modified equation also includes the electric field gradient force component and thus can be considered valid for any particle in transformer oil under different type of field configurations.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114327776","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112886
Bhim Singh, R. Kushwaha
In this paper, a bridgeless (BL) Cuk converter with low component count is presented for front-end power factor correction (PFC) in E-rickshaw battery charger. A flyback converter is used at the next stage to control the current through the e-rickshaw battery. This front-end BL Cuk converter uses only one switch, and one diode for bridgeless operation. The numbers of magnetic components in the converter, are reduced to half than that in a conventional two switch BL Cuk converter based E-rickshaw battery chargers. Therefore, the total component count is significantly reduced than the conventional one. This BL Cuk converter has the additional advantage of reduced switch voltage stress when compared to conventional BL converters. This BL PFC converter and the isolated converter are selected to operate in discontinuous conduction mode (DCM). An 850W prototype of this EV charger is tested at steady state and over the varying supply voltages. The improved performance of this BL Cuk converter is observed with reduced voltage stress, higher efficiency over the conventional BL converters on the account of low conduction losses.
{"title":"A High Power Quality Battery Charger for Light Electric Vehicle based on Improved BL Cuk Converter with Low Component Count","authors":"Bhim Singh, R. Kushwaha","doi":"10.1109/PIICON49524.2020.9112886","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112886","url":null,"abstract":"In this paper, a bridgeless (BL) Cuk converter with low component count is presented for front-end power factor correction (PFC) in E-rickshaw battery charger. A flyback converter is used at the next stage to control the current through the e-rickshaw battery. This front-end BL Cuk converter uses only one switch, and one diode for bridgeless operation. The numbers of magnetic components in the converter, are reduced to half than that in a conventional two switch BL Cuk converter based E-rickshaw battery chargers. Therefore, the total component count is significantly reduced than the conventional one. This BL Cuk converter has the additional advantage of reduced switch voltage stress when compared to conventional BL converters. This BL PFC converter and the isolated converter are selected to operate in discontinuous conduction mode (DCM). An 850W prototype of this EV charger is tested at steady state and over the varying supply voltages. The improved performance of this BL Cuk converter is observed with reduced voltage stress, higher efficiency over the conventional BL converters on the account of low conduction losses.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"518 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116244572","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112953
A. Aggarwal, M. Saini
As per mitigation aspects, recognition of the events which cause various power quality disturbances holds more significance as compared to recognition of those power quality disturbances. So, this paper proposes an approach for recognition of events which causes voltage sag. This work designs new orthogonal signal-adapted wavelet basis using vector quantization for more efficacious multiresolution analysis of input signals. From filterbank of designed wavelets, most optimal wavelet basis for a particular input signal is chosen by adopting the criterion of maximum energy-to-Shannon-entropy ratio. Multiresolution analysis of the input signal using selected wavelet basis produces more distinguishing and informative feature set to be classified by naive Bayes classifier. The proposed method has achieved good classification accuracy even in the presence of noise which proves its robustness for real-time applications.
{"title":"Recognition of Voltage Sag Causes using Vector Quantization based Orthogonal Wavelet","authors":"A. Aggarwal, M. Saini","doi":"10.1109/PIICON49524.2020.9112953","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112953","url":null,"abstract":"As per mitigation aspects, recognition of the events which cause various power quality disturbances holds more significance as compared to recognition of those power quality disturbances. So, this paper proposes an approach for recognition of events which causes voltage sag. This work designs new orthogonal signal-adapted wavelet basis using vector quantization for more efficacious multiresolution analysis of input signals. From filterbank of designed wavelets, most optimal wavelet basis for a particular input signal is chosen by adopting the criterion of maximum energy-to-Shannon-entropy ratio. Multiresolution analysis of the input signal using selected wavelet basis produces more distinguishing and informative feature set to be classified by naive Bayes classifier. The proposed method has achieved good classification accuracy even in the presence of noise which proves its robustness for real-time applications.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"23 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131805532","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113068
A. Usman, V. Sharma, Bharat Singh Rajpurohit
The continuous operation of a Permanent Magnet (PM) Brushless DC (BLDC) motor in industrial applications get subjected to unfavorable environmental conditions. This includes physical and thermal stresses leading to the emergence of fault. Faults on the rotor side is generally inflicted by the change in magnetic coercivity (HC) leading to the demagnetization of a PM in the machine. The effect of demagnetization brings a significant change in the motor characteristics performance including phase currents and motor back-EMF. This paper shall therefore, elaborate on the effect of demagnetization fault on the harmonics of current and back-EMF of the BLDC motor. The demagnetization faults taken in our study are uniform and extreme demagnetization effects. On the occurrence of these two faults the change in THD and percentage share of harmonics are being analyzed in order to draw an inference for the detection and classification of demagnetization faults in the motor. The outcomes obtained are further compared with the motor characteristics under healthy operation to have distinct identification to fault.
{"title":"Harmonic Analysis of a BLDC Motor Under Demagnetization Fault Conditions","authors":"A. Usman, V. Sharma, Bharat Singh Rajpurohit","doi":"10.1109/PIICON49524.2020.9113068","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113068","url":null,"abstract":"The continuous operation of a Permanent Magnet (PM) Brushless DC (BLDC) motor in industrial applications get subjected to unfavorable environmental conditions. This includes physical and thermal stresses leading to the emergence of fault. Faults on the rotor side is generally inflicted by the change in magnetic coercivity (HC) leading to the demagnetization of a PM in the machine. The effect of demagnetization brings a significant change in the motor characteristics performance including phase currents and motor back-EMF. This paper shall therefore, elaborate on the effect of demagnetization fault on the harmonics of current and back-EMF of the BLDC motor. The demagnetization faults taken in our study are uniform and extreme demagnetization effects. On the occurrence of these two faults the change in THD and percentage share of harmonics are being analyzed in order to draw an inference for the detection and classification of demagnetization faults in the motor. The outcomes obtained are further compared with the motor characteristics under healthy operation to have distinct identification to fault.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132644247","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113054
S. Saha, V. Mukherjee
In this paper, a novel optimization technique, namely, multi-objective modified symbiotic organisms search (MOMSOS) is proposed for optimal allocation of distributed generation (DG) units in radial distribution system (RDS). Three renewable DG units, such as, solar photovoltaic, wind turbine and biomass system are considered for integration into the RDS. The process of DG integration is guided by minimization of four operational objectives, such as, annual energy loss, annual investment and operating cost, annual electricity purchase cost and total voltage deviation of the system. In this study the hourly variation in generation of renewable sources and system load are considered for realistic planning. The simulation results on 69-node RDS show the effectiveness of the proposed approach as it successfully determines the optimal locations and sizes of the DG units while im proving the system performance.
{"title":"A Novel Meta-heuristic for Optimal Allocation of Distributed Generation in Balanced Distribution Network Considering Hourly Load Variation","authors":"S. Saha, V. Mukherjee","doi":"10.1109/PIICON49524.2020.9113054","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113054","url":null,"abstract":"In this paper, a novel optimization technique, namely, multi-objective modified symbiotic organisms search (MOMSOS) is proposed for optimal allocation of distributed generation (DG) units in radial distribution system (RDS). Three renewable DG units, such as, solar photovoltaic, wind turbine and biomass system are considered for integration into the RDS. The process of DG integration is guided by minimization of four operational objectives, such as, annual energy loss, annual investment and operating cost, annual electricity purchase cost and total voltage deviation of the system. In this study the hourly variation in generation of renewable sources and system load are considered for realistic planning. The simulation results on 69-node RDS show the effectiveness of the proposed approach as it successfully determines the optimal locations and sizes of the DG units while im proving the system performance.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130747021","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112958
Jeyabalan Velandy, Ankita Garg, C. Narasimhan
Ester oil is becoming a substitute to replace mineral oil for transformers due to higher fire safe, environmental friendly, higher thermal stability and or longer insulation life (transformer life). The chemical composition and molecular structure of ester oil groups of natural ester oil and synthetic ester oil are entirely different from commonly used petroleum based mineral oil. The higher viscous nature of ester oil will increase the oil temperature rise, winding temperature rise, winding gradient and hot-spot temperature due to less convective heat transfer. Hence, the internal and external cooling modes of transformer needs to be analyzed extensively by transformer manufacturer to get an advantageous of ester oil for transformer applications. In this paper, Thermal Hydraulic Network Model (THNM) is effectively utilized to predict top oil temperature rise, bottom oil temperature rise, winding temperature rise, oil flow rate and hot-spot temperature on 12.5/16MVA, 132/11kV transformer winding geometry with different types of ester oil and comparing its results with mineral oil under steady state conditions. In addition, effect of different types of cooling fan mounting arrangements (vertical and horizontal manner) on 4 radiators with 3 cooling fan and 4 radiators with 4 fan are analyzed and its results are compared for ester oil and mineral oil. Temperature rise test is also performed to validate the THNM results.
{"title":"Thermal Performance of Ester Oil Transformers with Different Placement of Cooling Fan","authors":"Jeyabalan Velandy, Ankita Garg, C. Narasimhan","doi":"10.1109/PIICON49524.2020.9112958","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112958","url":null,"abstract":"Ester oil is becoming a substitute to replace mineral oil for transformers due to higher fire safe, environmental friendly, higher thermal stability and or longer insulation life (transformer life). The chemical composition and molecular structure of ester oil groups of natural ester oil and synthetic ester oil are entirely different from commonly used petroleum based mineral oil. The higher viscous nature of ester oil will increase the oil temperature rise, winding temperature rise, winding gradient and hot-spot temperature due to less convective heat transfer. Hence, the internal and external cooling modes of transformer needs to be analyzed extensively by transformer manufacturer to get an advantageous of ester oil for transformer applications. In this paper, Thermal Hydraulic Network Model (THNM) is effectively utilized to predict top oil temperature rise, bottom oil temperature rise, winding temperature rise, oil flow rate and hot-spot temperature on 12.5/16MVA, 132/11kV transformer winding geometry with different types of ester oil and comparing its results with mineral oil under steady state conditions. In addition, effect of different types of cooling fan mounting arrangements (vertical and horizontal manner) on 4 radiators with 3 cooling fan and 4 radiators with 4 fan are analyzed and its results are compared for ester oil and mineral oil. Temperature rise test is also performed to validate the THNM results.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131651430","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9113031
Amit Kumar, Utkarsh Sharma, Bhim Singh
The bridgeless isolated power factor corrected (PFC) SEPIC converter based ceiling fan with DC link voltage of 48V, shows the better power quality and less power consumption. It consists of an electromagnetic interference (EMI) filter, high frequency isolation transformer in series with a voltage source inverter and a permanent magnet brushless DC (PMBLDC) motor. This topology is designed in discontinuous inductor current mode (DCIM) of operation with input power of 30W. This ceiling fan is taking power one third of a single phase induction motor. The power quality performances are found good for this topology based ceiling fan. This topology for the ceiling fan is simulated with simple voltage follower control technique. To control the speed of PMBLDC motor, DC link voltage is sensed and it varies up to 48V. The turn’s ratio of high frequency transformer and inductor are selected such a manner that the switch stress of the converter switches should be minimum. The MATLAB simulation results are shown to validate the design of a bridgeless isolated PFC SEPIC converter based ceiling fan.
{"title":"BLDC Motor Ceiling Fan Using a Bridgeless Isolated PFC SEPIC Converter","authors":"Amit Kumar, Utkarsh Sharma, Bhim Singh","doi":"10.1109/PIICON49524.2020.9113031","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9113031","url":null,"abstract":"The bridgeless isolated power factor corrected (PFC) SEPIC converter based ceiling fan with DC link voltage of 48V, shows the better power quality and less power consumption. It consists of an electromagnetic interference (EMI) filter, high frequency isolation transformer in series with a voltage source inverter and a permanent magnet brushless DC (PMBLDC) motor. This topology is designed in discontinuous inductor current mode (DCIM) of operation with input power of 30W. This ceiling fan is taking power one third of a single phase induction motor. The power quality performances are found good for this topology based ceiling fan. This topology for the ceiling fan is simulated with simple voltage follower control technique. To control the speed of PMBLDC motor, DC link voltage is sensed and it varies up to 48V. The turn’s ratio of high frequency transformer and inductor are selected such a manner that the switch stress of the converter switches should be minimum. The MATLAB simulation results are shown to validate the design of a bridgeless isolated PFC SEPIC converter based ceiling fan.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115586123","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112914
V. Dhiman, S. Shivam
In recent times due to the extensive utilization of renewable energy resources, the requirement of grid connection of DC microgrid and AC microgrid becomes very decisive. This paper is proposed an enhanced two-stage coordination control scheme for a bidirectional interlinking converter (BIC) to overcome the problem of efficiency during the interconnection of DC and AC microgrids. The first stage of control scheme is depended upon the P-V/Q-f droop control method, it is used when link-impedance is mainly resistive in nature. The second stage of control scheme is comprised to compensate for the deviation of voltage and current, which are depending upon load under grid connected mode and islanding mode. While changing the load on the AC side under grid connected mode, the operation is transferred to islanding mode. The two-stage control scheme is also utilized for bifurcation of active and reactive power. The proposed control scheme is verified in MATLAB/ Simulink environment.
{"title":"Enhanced Two-stage Coordination Control of AC/DC Hybrid Microgrid","authors":"V. Dhiman, S. Shivam","doi":"10.1109/PIICON49524.2020.9112914","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112914","url":null,"abstract":"In recent times due to the extensive utilization of renewable energy resources, the requirement of grid connection of DC microgrid and AC microgrid becomes very decisive. This paper is proposed an enhanced two-stage coordination control scheme for a bidirectional interlinking converter (BIC) to overcome the problem of efficiency during the interconnection of DC and AC microgrids. The first stage of control scheme is depended upon the P-V/Q-f droop control method, it is used when link-impedance is mainly resistive in nature. The second stage of control scheme is comprised to compensate for the deviation of voltage and current, which are depending upon load under grid connected mode and islanding mode. While changing the load on the AC side under grid connected mode, the operation is transferred to islanding mode. The two-stage control scheme is also utilized for bifurcation of active and reactive power. The proposed control scheme is verified in MATLAB/ Simulink environment.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115693118","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 : 2020-02-01DOI: 10.1109/PIICON49524.2020.9112895
A. Usman, B. Rajpurohit
This paper shall illustrate on the design and development of a BLDC motor drive using Hybrid Analytical- Numerical based modeling methods. The proposed hybrid methodology shall adopt both, Electrical Equivalent Circuit (EEC) and Numerical Method (NM) based techniques for having better accuracy with less computational time. The developed BLDC motor is operated using a Field Programmable Gate Array (FPGA) based control drive adopting Hysteresis Current Control (HCC) technique. The FPGA based PI speed controller sense the speed of the motor through Hall Effect sensors of the BLDC motor and generate reference current for the HCC. The generated reference current and the hysteresis controller response results in switching pulses for the 120-degree Voltage Source Inverter (VSI) of a motor drive. The FPGA based PI speed controller is designed effectively to withstand the changes in speed during the dynamic conditions of the motor. Therefore, the proposed controller can be used in industries to withstand the fault conditions in the drive and maintain the steady speed response of a motor under operation. The experimental investigation of a BLDC motor drive operated with the FPGA based algorithm developed on Xilinx ISE tool, is carried out for validating the outcomes obtained.
{"title":"Design and Control of a BLDC Motor drive using Hybrid Modeling Technique and FPGA based Hysteresis Current Controller","authors":"A. Usman, B. Rajpurohit","doi":"10.1109/PIICON49524.2020.9112895","DOIUrl":"https://doi.org/10.1109/PIICON49524.2020.9112895","url":null,"abstract":"This paper shall illustrate on the design and development of a BLDC motor drive using Hybrid Analytical- Numerical based modeling methods. The proposed hybrid methodology shall adopt both, Electrical Equivalent Circuit (EEC) and Numerical Method (NM) based techniques for having better accuracy with less computational time. The developed BLDC motor is operated using a Field Programmable Gate Array (FPGA) based control drive adopting Hysteresis Current Control (HCC) technique. The FPGA based PI speed controller sense the speed of the motor through Hall Effect sensors of the BLDC motor and generate reference current for the HCC. The generated reference current and the hysteresis controller response results in switching pulses for the 120-degree Voltage Source Inverter (VSI) of a motor drive. The FPGA based PI speed controller is designed effectively to withstand the changes in speed during the dynamic conditions of the motor. Therefore, the proposed controller can be used in industries to withstand the fault conditions in the drive and maintain the steady speed response of a motor under operation. The experimental investigation of a BLDC motor drive operated with the FPGA based algorithm developed on Xilinx ISE tool, is carried out for validating the outcomes obtained.","PeriodicalId":422853,"journal":{"name":"2020 IEEE 9th Power India International Conference (PIICON)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114821529","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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