Pub Date : 2017-05-01DOI: 10.1109/CPE.2017.7915239
G. Rigatos, P. Siano, M. Jovanović, S. Ademi, P. Wira, Z. Tir
A nonlinear H-infinity (optimal) control approach is proposed for the problem of control of Synchronous Reluctance Machines (SRMs). Approximate linearization is applied to the dynamic model of the Synchronous Reluctance Machine, round a local operating point. To accomplish this linearization Taylor series expansion and the computation of the associated Jacobian matrices are performed. The robustness of the control scheme assures that the modelling error due to truncation of higher order terms from the Taylor expansion will be compensated. Next, an H-infinity feedback controller is designed. After solving an algebraic Riccati equation at each iteration of the control algorithm, the feedback gain is computed. Lyapunov stability analysis proves that the control loop satisfies an H-infinity tracking performance criterion. This in turn signifies elevated robustness to model uncertainty and external perturbations. Moreover, under moderate conditions it is proven that the control loop is globally asymptotically stable.
{"title":"Nonlinear optimal control for Synchronous Reluctance Machines","authors":"G. Rigatos, P. Siano, M. Jovanović, S. Ademi, P. Wira, Z. Tir","doi":"10.1109/CPE.2017.7915239","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915239","url":null,"abstract":"A nonlinear H-infinity (optimal) control approach is proposed for the problem of control of Synchronous Reluctance Machines (SRMs). Approximate linearization is applied to the dynamic model of the Synchronous Reluctance Machine, round a local operating point. To accomplish this linearization Taylor series expansion and the computation of the associated Jacobian matrices are performed. The robustness of the control scheme assures that the modelling error due to truncation of higher order terms from the Taylor expansion will be compensated. Next, an H-infinity feedback controller is designed. After solving an algebraic Riccati equation at each iteration of the control algorithm, the feedback gain is computed. Lyapunov stability analysis proves that the control loop satisfies an H-infinity tracking performance criterion. This in turn signifies elevated robustness to model uncertainty and external perturbations. Moreover, under moderate conditions it is proven that the control loop is globally asymptotically stable.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126863926","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 : 2017-05-01DOI: 10.1109/CPE.2017.7915211
H. Khalfalla, S. Ethni, M. Al-Greer, V. Pickert, M. Armstrong, Van Thang Phan
This paper presents an adaptive proportional resonant (PR) controller for single phase grid connected inverter that adapts its control parameters to grid impedance variations. Forth order band bass filter is designed and then integrated with the adaptive scheme for on-line detection of any variations in the resonance frequency. The estimated frequency is then processed by statistical signal processing operation to identify the variations in the grid impedance. For the on-line tuning of the PR parameters, a look-up table technique is utilized and its parameters are linked with the estimated impedance values. Simulation results based on MATLAB environment clearly verify the effectiveness of the proposed control scheme for 2 kW grid connected inverter system.
{"title":"An adaptive proportional resonant controller for single phase PV grid connected inverter based on band-pass filter technique","authors":"H. Khalfalla, S. Ethni, M. Al-Greer, V. Pickert, M. Armstrong, Van Thang Phan","doi":"10.1109/CPE.2017.7915211","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915211","url":null,"abstract":"This paper presents an adaptive proportional resonant (PR) controller for single phase grid connected inverter that adapts its control parameters to grid impedance variations. Forth order band bass filter is designed and then integrated with the adaptive scheme for on-line detection of any variations in the resonance frequency. The estimated frequency is then processed by statistical signal processing operation to identify the variations in the grid impedance. For the on-line tuning of the PR parameters, a look-up table technique is utilized and its parameters are linked with the estimated impedance values. Simulation results based on MATLAB environment clearly verify the effectiveness of the proposed control scheme for 2 kW grid connected inverter system.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131773947","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915253
A. Ayad, P. Karamanakos, R. Kennel, José R. Rodríguez
This paper proposes a direct model predictive control (MPC) strategy to control the bidirectional quasi-Z-source inverter (BqZSI) driving a permanent magnet synchronous machine (PMSM) for electric vehicle applications. The dq machine currents are simultaneously controlled with the capacitor voltage and inductor current of the dc side. The physical model of the BqZSI with PMSM is first derived which encompasses different operating modes and states of the BqZSI. To examine the performance of the proposed control scheme at steady-state and transient operation, simulations based on MATLAB/Simulink are conducted. The results indicate that the proposed control scheme offers a very good steady-state performance as well as fast dynamic responses during transients.
{"title":"Direct model predictive control of bidirectional quasi-Z-source inverters fed PMSM drives","authors":"A. Ayad, P. Karamanakos, R. Kennel, José R. Rodríguez","doi":"10.1109/CPE.2017.7915253","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915253","url":null,"abstract":"This paper proposes a direct model predictive control (MPC) strategy to control the bidirectional quasi-Z-source inverter (BqZSI) driving a permanent magnet synchronous machine (PMSM) for electric vehicle applications. The dq machine currents are simultaneously controlled with the capacitor voltage and inductor current of the dc side. The physical model of the BqZSI with PMSM is first derived which encompasses different operating modes and states of the BqZSI. To examine the performance of the proposed control scheme at steady-state and transient operation, simulations based on MATLAB/Simulink are conducted. The results indicate that the proposed control scheme offers a very good steady-state performance as well as fast dynamic responses during transients.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129129522","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915163
A. Elserougi, A. Abdel-Khalik, Shehab Ahmed, A. Massoud
The underwater pulsed arc discharge is one of the effective methods in water treatment applications. In pulsed arc discharge, a pulsed output in the range of 1–10 kV is typically applied across the water treatment chamber electrodes with a gap of several millimeters range between these electrodes, while the pulsed load current is above 1kA. The employed pulse generator should not only be capable of generating a high-voltage level, but also withstand the corresponding high-current stresses. In this paper, a multi-module high-voltage pulse generator is proposed for pulsed arc discharge-based water treatment system. The proposed generator consists of n synchronized groups fed from isolated dc sources, while their outputs are connected in series forming a high voltage pulsed output. Each group consists of m parallel-in parallel-out identical synchronized modules to share the current. Each module consists of a boost converter followed by a Capacitor-Diode Voltage Multiplier (CDVM) which is followed by chopping Insulated Gate Bipolar Transistor (IGBT). Each module is controlled to ensure a regulated dc output voltage across its terminals, a sinusoidal input grid current, and unity input power factor. In the proposed scheme, relatively low-voltage low-current IGBTs and diodes can be employed to generate the high-voltage high-current pulsed output. The simulation results for a 30kW system are presented to show the viability of the proposed approach.
{"title":"AC-powered multi-module high-voltage pusle-generator with sinusoidal input current for water treatment via underwater pulsed arc discharge","authors":"A. Elserougi, A. Abdel-Khalik, Shehab Ahmed, A. Massoud","doi":"10.1109/CPE.2017.7915163","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915163","url":null,"abstract":"The underwater pulsed arc discharge is one of the effective methods in water treatment applications. In pulsed arc discharge, a pulsed output in the range of 1–10 kV is typically applied across the water treatment chamber electrodes with a gap of several millimeters range between these electrodes, while the pulsed load current is above 1kA. The employed pulse generator should not only be capable of generating a high-voltage level, but also withstand the corresponding high-current stresses. In this paper, a multi-module high-voltage pulse generator is proposed for pulsed arc discharge-based water treatment system. The proposed generator consists of n synchronized groups fed from isolated dc sources, while their outputs are connected in series forming a high voltage pulsed output. Each group consists of m parallel-in parallel-out identical synchronized modules to share the current. Each module consists of a boost converter followed by a Capacitor-Diode Voltage Multiplier (CDVM) which is followed by chopping Insulated Gate Bipolar Transistor (IGBT). Each module is controlled to ensure a regulated dc output voltage across its terminals, a sinusoidal input grid current, and unity input power factor. In the proposed scheme, relatively low-voltage low-current IGBTs and diodes can be employed to generate the high-voltage high-current pulsed output. The simulation results for a 30kW system are presented to show the viability of the proposed approach.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128422114","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915150
A. Khalyasmaa, Yan V. Sandakov, O. Kotov
The paper is concerned with the analysis of the overhead transmission lines failures statistics as well as the analysis of the seasonal change in the failure intensity. The developed three-winding transformers models designed for the electrical networks structural reliability calculation are presented.
{"title":"Special models in the structural reliability calculations of electric grids","authors":"A. Khalyasmaa, Yan V. Sandakov, O. Kotov","doi":"10.1109/CPE.2017.7915150","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915150","url":null,"abstract":"The paper is concerned with the analysis of the overhead transmission lines failures statistics as well as the analysis of the seasonal change in the failure intensity. The developed three-winding transformers models designed for the electrical networks structural reliability calculation are presented.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128615963","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915177
S. Bayhan, H. Abu-Rub
In general, the distributed generation (DG) inverters can operate in parallel in islanded microgrids through droop characteristic based control technique. This control technique is suitable for long distance DG inverters to achieve proper power sharing while ensuring good voltage regulation. On the other hand, the traditional droop control shows some disadvantages, such as the requirement for multi-loop feedback control, which results in complex controller design and slow dynamic response. To overcome this drawback, model predictive based droop control technique is presented in this paper. To verify the control technique performance, simulation studies are performed with Matlab/Simulink.
{"title":"Model predictive droop control of distributed generation inverters in islanded AC microgrid","authors":"S. Bayhan, H. Abu-Rub","doi":"10.1109/CPE.2017.7915177","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915177","url":null,"abstract":"In general, the distributed generation (DG) inverters can operate in parallel in islanded microgrids through droop characteristic based control technique. This control technique is suitable for long distance DG inverters to achieve proper power sharing while ensuring good voltage regulation. On the other hand, the traditional droop control shows some disadvantages, such as the requirement for multi-loop feedback control, which results in complex controller design and slow dynamic response. To overcome this drawback, model predictive based droop control technique is presented in this paper. To verify the control technique performance, simulation studies are performed with Matlab/Simulink.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128865195","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915224
H. Komurcugil, S. Bayhan, H. Abu-Rub
This paper presents a Lyapunov-function based control approach with cascaded proportional-resonant (PR) controller for single-phase grid-tied LCL-filtered quasi-Z-source inverter (qZSI). The proposed control approach guarantees the global stability of the closed-loop system and zero steady-state error in the grid current. The reference values for the inverter current and capacitor voltage are generated by using cascaded connected PR controllers. As a consequence of using PR controllers, the need for performing derivative operations and estimating grid side inductance and capacitance is eliminated which, in turn, achieves zero steady-state error in the grid current. The shoot through control of the qZSI is achieved by the simple boost control technique. Computer simulations are conducted to show that the proposed control approach provides a good steady-state and dynamic performance in achieving the required control objectives.
{"title":"Lyapunov-function based control approach with cascaded PR controllers for single-phase grid-tied LCL-filtered quasi-Z-source inverters","authors":"H. Komurcugil, S. Bayhan, H. Abu-Rub","doi":"10.1109/CPE.2017.7915224","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915224","url":null,"abstract":"This paper presents a Lyapunov-function based control approach with cascaded proportional-resonant (PR) controller for single-phase grid-tied LCL-filtered quasi-Z-source inverter (qZSI). The proposed control approach guarantees the global stability of the closed-loop system and zero steady-state error in the grid current. The reference values for the inverter current and capacitor voltage are generated by using cascaded connected PR controllers. As a consequence of using PR controllers, the need for performing derivative operations and estimating grid side inductance and capacitance is eliminated which, in turn, achieves zero steady-state error in the grid current. The shoot through control of the qZSI is achieved by the simple boost control technique. Computer simulations are conducted to show that the proposed control approach provides a good steady-state and dynamic performance in achieving the required control objectives.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128893876","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915233
B. Reznikov, V. Galanina, R. Polichshuk, A. Ruderman
Capacitor natural voltage balancing in multilevel converters is a potentially attractive feature because it does not require capacitor voltage measurement and balancing control effort. The paper addresses DC-DC step-down Flying Capacitor Converter average balanced capacitor voltages for inductance dominated LR-loads (or resistive LC-filtered ones). Capacitor voltage unbalances, or offsets compared to their expected theoretical balanced values, impose overstress on semiconductor devices and compromise output voltage quality. It is demonstrated that the unbalance problem may practically occur for 3 flying capacitor converters for relatively small resistance of inductance dominated LR-load when using modulation strategies different from classic carrier-based phase-shifted lead and lag ones. Motivation for such strategies may be improving natural balancing dynamics rate. Symbolic time domain analysis is carried out for a demo case of a three capacitor DC-DC step-down converter in a small parameter approximation. Average capacitor voltage offset expressions clearly demonstrate the dependences on load parameters and capacitances for different switching sequences.
{"title":"Re-visiting naturally balanced average capacitor voltages in multilevel DC-DC converters","authors":"B. Reznikov, V. Galanina, R. Polichshuk, A. Ruderman","doi":"10.1109/CPE.2017.7915233","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915233","url":null,"abstract":"Capacitor natural voltage balancing in multilevel converters is a potentially attractive feature because it does not require capacitor voltage measurement and balancing control effort. The paper addresses DC-DC step-down Flying Capacitor Converter average balanced capacitor voltages for inductance dominated LR-loads (or resistive LC-filtered ones). Capacitor voltage unbalances, or offsets compared to their expected theoretical balanced values, impose overstress on semiconductor devices and compromise output voltage quality. It is demonstrated that the unbalance problem may practically occur for 3 flying capacitor converters for relatively small resistance of inductance dominated LR-load when using modulation strategies different from classic carrier-based phase-shifted lead and lag ones. Motivation for such strategies may be improving natural balancing dynamics rate. Symbolic time domain analysis is carried out for a demo case of a three capacitor DC-DC step-down converter in a small parameter approximation. Average capacitor voltage offset expressions clearly demonstrate the dependences on load parameters and capacitances for different switching sequences.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131996740","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915159
S. Dabour, A. Abdel-Khalik, Shehab Ahmed, A. Massoud
This paper introduces a new transformerless converter topology for Multiphase-Based Wind Energy Conversion Systems (WECSs). In this topology, a twelve-phase induction generator is integrated to the grid using dual Nine-Switch Converters (NSCs) connected in series forming a high voltage cascaded dc-link. For this generator phase number, this topology reduces the total number of semiconductor devices in the machine side converter by 25% than conventional topologies, where four three-phase two-level voltage source converters are typically needed. Moreover, it offers a high ac-dc boosting capability, which facilities a transformerless system operation. The twelve-phase induction generator can be regarded as dual symmetrical six-phase windings with a spatial displacement of 30°. Therefore, each NSC controls each six-phase winding set. The dc-link midpoint balancing is achieved based on controlling the (x−y) current components of the two winding groups. The proposed topology and its control system are analyzed and simulated under different operating cases using MATLAB/SIMULINK.
{"title":"A new dual series-connected Nine-Switch Converter topology for a twelve-phase induction machine wind energy system","authors":"S. Dabour, A. Abdel-Khalik, Shehab Ahmed, A. Massoud","doi":"10.1109/CPE.2017.7915159","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915159","url":null,"abstract":"This paper introduces a new transformerless converter topology for Multiphase-Based Wind Energy Conversion Systems (WECSs). In this topology, a twelve-phase induction generator is integrated to the grid using dual Nine-Switch Converters (NSCs) connected in series forming a high voltage cascaded dc-link. For this generator phase number, this topology reduces the total number of semiconductor devices in the machine side converter by 25% than conventional topologies, where four three-phase two-level voltage source converters are typically needed. Moreover, it offers a high ac-dc boosting capability, which facilities a transformerless system operation. The twelve-phase induction generator can be regarded as dual symmetrical six-phase windings with a spatial displacement of 30°. Therefore, each NSC controls each six-phase winding set. The dc-link midpoint balancing is achieved based on controlling the (x−y) current components of the two winding groups. The proposed topology and its control system are analyzed and simulated under different operating cases using MATLAB/SIMULINK.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134638946","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 : 2017-04-28DOI: 10.1109/CPE.2017.7915197
Aly A. Abdel Aziz, R. Hamdy, A. Abdel-Khalik, Mohamed Y Abdel Fattah
In this paper, a three phase delta connected self-excited induction generator (SEIG) excited by two capacitors and feeding a single phase load is investigated in both transient and steady state cases. Using symmetrical components analysis, two simple formulas are derived to calculate the required values of the two capacitors that result in balanced stator phase currents under rated conditions, which eliminates the torque pulsation due to single phase loading. The dynamic model of the proposed connection in the stationary dq reference frame is also presented in details. The system model is built and simulated using MATLAB/SIMULINK. The simulation results are presented and experimentally verified under different conditions.
{"title":"Investigation of a three-phase self-excited induction generator feeding single-phase loads","authors":"Aly A. Abdel Aziz, R. Hamdy, A. Abdel-Khalik, Mohamed Y Abdel Fattah","doi":"10.1109/CPE.2017.7915197","DOIUrl":"https://doi.org/10.1109/CPE.2017.7915197","url":null,"abstract":"In this paper, a three phase delta connected self-excited induction generator (SEIG) excited by two capacitors and feeding a single phase load is investigated in both transient and steady state cases. Using symmetrical components analysis, two simple formulas are derived to calculate the required values of the two capacitors that result in balanced stator phase currents under rated conditions, which eliminates the torque pulsation due to single phase loading. The dynamic model of the proposed connection in the stationary dq reference frame is also presented in details. The system model is built and simulated using MATLAB/SIMULINK. The simulation results are presented and experimentally verified under different conditions.","PeriodicalId":259750,"journal":{"name":"2017 11th IEEE International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126415108","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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