Pub Date : 2012-09-13DOI: 10.1109/APCET.2012.6302005
G. Satheesh, T. Reddy, C. Babu
In this present paper, a decoupled method for a fixed switching frequency direct torque control (DTC) using four level inverter is discussed. In this approach the four level voltages are generated by using cascaded connection of two conventional two level inverters which are fed with the unequal dc link voltages. Controlling of the two inverters feeding the open end winding induction motor is easier than compared to the controlling of inverter voltages in the other multi level inverters. However, the proposed DTC scheme does not require the sector information of the estimated fundamental stator voltage vector and its relative position with respect to the stator flux vector. Simulation results clearly demonstrate a better dynamic and simplicity in numerical calculations of the proposed method.
{"title":"Four level decoupled SVPWM based direct torque control (DTC) of open end induction motor drive","authors":"G. Satheesh, T. Reddy, C. Babu","doi":"10.1109/APCET.2012.6302005","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302005","url":null,"abstract":"In this present paper, a decoupled method for a fixed switching frequency direct torque control (DTC) using four level inverter is discussed. In this approach the four level voltages are generated by using cascaded connection of two conventional two level inverters which are fed with the unequal dc link voltages. Controlling of the two inverters feeding the open end winding induction motor is easier than compared to the controlling of inverter voltages in the other multi level inverters. However, the proposed DTC scheme does not require the sector information of the estimated fundamental stator voltage vector and its relative position with respect to the stator flux vector. Simulation results clearly demonstrate a better dynamic and simplicity in numerical calculations of the proposed method.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121338723","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302002
C. H. Krishna, J. Amarnath, S. Kamakshaiah
In this paper, a simplified space vector pulse width modulation (SVPWM) method has been developed for three-phase three-level voltage source inverter fed to direct torque controlled (DTC) induction motor drive. The space vector diagram of three-level inverter is simplified into two-level inverter. So the selection of switching sequences is done as conventional two-level SVPWM method. Where in conventional direct torque control (CDTC), the stator flux and torque are directly controlled by the selection of optimal switching modes. The selection is made to restrict the flux and torque errors in corresponding hysteresis bands. In spite of its fast torque response, it has more flux, torque and current ripples in steady state. To overcome the ripples in steady state, a space vector based pulse width modulation (SVPWM) methodology is proposed in this paper. The proposed SVPWM method reduces the computational burden and reduces the total harmonic distortion compared with 2-level one and the conventional one also. To strengthen the voice simulation is carried out and the corresponding results are presented.
{"title":"Simplified SVPWM algorithm for neutral point clamped 3-level inverter fed DTC-IM drive","authors":"C. H. Krishna, J. Amarnath, S. Kamakshaiah","doi":"10.1109/APCET.2012.6302002","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302002","url":null,"abstract":"In this paper, a simplified space vector pulse width modulation (SVPWM) method has been developed for three-phase three-level voltage source inverter fed to direct torque controlled (DTC) induction motor drive. The space vector diagram of three-level inverter is simplified into two-level inverter. So the selection of switching sequences is done as conventional two-level SVPWM method. Where in conventional direct torque control (CDTC), the stator flux and torque are directly controlled by the selection of optimal switching modes. The selection is made to restrict the flux and torque errors in corresponding hysteresis bands. In spite of its fast torque response, it has more flux, torque and current ripples in steady state. To overcome the ripples in steady state, a space vector based pulse width modulation (SVPWM) methodology is proposed in this paper. The proposed SVPWM method reduces the computational burden and reduces the total harmonic distortion compared with 2-level one and the conventional one also. To strengthen the voice simulation is carried out and the corresponding results are presented.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"72 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126104896","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302024
S. Bhattacharya, P. Saha, G. Panda
The advent of rising electrical energy consumption gave rise to a steady increase in the demand on power generation. So, in addition to conventional power generation units a number of renewable energy units are increasingly being integrated into the system. A wind electrical generation system is the most cost competitive of all the environmentally clean and safe renewable energy sources in world. The stator of the wind energy conversion systems generally Doubly Fed Induction Generator (DFIG) is directly are connected to the grid through Voltage Source Converters (VSC) to make variable speed operation possible. The stator of the generator is directly connected to the grid while the rotor is connected through a back-to-back converter which is dimensioned to stand only a fraction of the generator rated power. The rotor side converter (RSC) usually provides active and reactive power control of the machine while the grid-side converter (GSC) keeps the voltage of the DC-link constant. In the linear controller for DFIG, a vector-control scheme for the grid-side PWM converter and Instantaneous Reactive Power Theory(IRPT) for rotor-side PWM converter is applied. The proposed model of the linear controller and the conventional linear controller using Synchronous Reference Frame Theory(SRF) are both simulated in MATLAB/Simulink platform. A comparative study is done between the linear controller using SRF theory and the proposed linear controller in order to show how the proposed linear controller improves the performance of the grid connected Doubly Fed Induction Generator (DFIG).
{"title":"A novel linear controller for grid connected doubly fed induction generator (DFIG)","authors":"S. Bhattacharya, P. Saha, G. Panda","doi":"10.1109/APCET.2012.6302024","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302024","url":null,"abstract":"The advent of rising electrical energy consumption gave rise to a steady increase in the demand on power generation. So, in addition to conventional power generation units a number of renewable energy units are increasingly being integrated into the system. A wind electrical generation system is the most cost competitive of all the environmentally clean and safe renewable energy sources in world. The stator of the wind energy conversion systems generally Doubly Fed Induction Generator (DFIG) is directly are connected to the grid through Voltage Source Converters (VSC) to make variable speed operation possible. The stator of the generator is directly connected to the grid while the rotor is connected through a back-to-back converter which is dimensioned to stand only a fraction of the generator rated power. The rotor side converter (RSC) usually provides active and reactive power control of the machine while the grid-side converter (GSC) keeps the voltage of the DC-link constant. In the linear controller for DFIG, a vector-control scheme for the grid-side PWM converter and Instantaneous Reactive Power Theory(IRPT) for rotor-side PWM converter is applied. The proposed model of the linear controller and the conventional linear controller using Synchronous Reference Frame Theory(SRF) are both simulated in MATLAB/Simulink platform. A comparative study is done between the linear controller using SRF theory and the proposed linear controller in order to show how the proposed linear controller improves the performance of the grid connected Doubly Fed Induction Generator (DFIG).","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115851314","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302066
G. Naresh, M. Ramalinga Raju, M. Sai Krishna
Power system stabilizers (PSSs) are used to generate supplementary control signals for the excitation system to damp electromechanical oscillations. This paper presents an Artificial Bee Colony (ABC) optimization based approach for tuning the parameters of PSSs in multi-machine power systems. The stabilizers are tuned to simultaneously shift the undamped and lightly damped electromechanical modes of all plants to a prescribed zone in the s-plane. A multi-objective problem is formulated to optimize a composite set of objective functions comprising the damping factor and the damping ratio of lightly damped electromechanical modes. The performance and robustness of optimized PSS using ABC algorithm is then, tested on New England New York 16-machine, 68-bus system under different operating conditions. Eigenvalue analysis and nonlinear time domain simulation results shows the effectiveness and robustness of the proposed ABCPSS over CPSS under different operating conditions and system configurations.
{"title":"Design and parameters optimization of multi-machine power system stabilizers using Artificial Bee Colony Algorithm","authors":"G. Naresh, M. Ramalinga Raju, M. Sai Krishna","doi":"10.1109/APCET.2012.6302066","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302066","url":null,"abstract":"Power system stabilizers (PSSs) are used to generate supplementary control signals for the excitation system to damp electromechanical oscillations. This paper presents an Artificial Bee Colony (ABC) optimization based approach for tuning the parameters of PSSs in multi-machine power systems. The stabilizers are tuned to simultaneously shift the undamped and lightly damped electromechanical modes of all plants to a prescribed zone in the s-plane. A multi-objective problem is formulated to optimize a composite set of objective functions comprising the damping factor and the damping ratio of lightly damped electromechanical modes. The performance and robustness of optimized PSS using ABC algorithm is then, tested on New England New York 16-machine, 68-bus system under different operating conditions. Eigenvalue analysis and nonlinear time domain simulation results shows the effectiveness and robustness of the proposed ABCPSS over CPSS under different operating conditions and system configurations.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123696175","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302039
F. Khan, J. Sundara Rajan, M. Ansari, P. Shahsadi Asra
Dibenzyl Disulfide (DBDS) is one of several sulfur compounds known to cause copper corrosion in transformers. Breakdown of the DBDS to benzyl mercaptan or a DBDS-Copper complex can still cause corrosion of copper and the formation of copper sulfide. The primary effect of the presence of corrosive sulfur species in insulating oil is the formation of copper sulfide (Cu2S) on the surface of copper conductors and its subsequent migration through the insulating paper layers, leading to electrical faults. The main compound known to cause copper corrosion leading to the formation of copper sulfide is dibenzyl disulfide (DBDS). The use of metal passivators, such as Irgamet 39TM as an additive to oil is a typical mitigation technique for suppressing the formation of copper sulfide. The addition of metal passivators to oil does not reduce or eliminate DBDS. Experimental study has been carried out to describe the role of DBDS in leakage current and breakdown of oil insulation.
{"title":"An experimental study on the effects of DBDS in transformer oil of power transformers","authors":"F. Khan, J. Sundara Rajan, M. Ansari, P. Shahsadi Asra","doi":"10.1109/APCET.2012.6302039","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302039","url":null,"abstract":"Dibenzyl Disulfide (DBDS) is one of several sulfur compounds known to cause copper corrosion in transformers. Breakdown of the DBDS to benzyl mercaptan or a DBDS-Copper complex can still cause corrosion of copper and the formation of copper sulfide. The primary effect of the presence of corrosive sulfur species in insulating oil is the formation of copper sulfide (Cu2S) on the surface of copper conductors and its subsequent migration through the insulating paper layers, leading to electrical faults. The main compound known to cause copper corrosion leading to the formation of copper sulfide is dibenzyl disulfide (DBDS). The use of metal passivators, such as Irgamet 39TM as an additive to oil is a typical mitigation technique for suppressing the formation of copper sulfide. The addition of metal passivators to oil does not reduce or eliminate DBDS. Experimental study has been carried out to describe the role of DBDS in leakage current and breakdown of oil insulation.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121617672","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302036
P. U. Reddy, M. Lakshmikantha Reddy, S. Sivanagaraju, P. Raju
This paper describes an approach for modelling of automatic voltage regulator using the forward/backward sweep-based algorithms for unbalanced radial distribution systems. Power loss indices are first found at each branch except source bus and the bus that has the highest power loss index are picked as the best location for the voltage regulators placement. To obtain the tap position of the voltage regulators that maintain the voltages within the limits of the unbalanced radial distribution systems by minimizing an objective function, consisting of power loss. PSO is used to find the selection of tap position of the voltage regulators. An algorithm makes the initial selection, installation and tap position setting of the voltage regulators to provide a good voltage profile and to minimize power loss along the distribution network. The effectiveness of the proposed method is illustrated on a test system of 25 bus unbalanced radial distribution systems.
{"title":"Optimal location of voltage regulators in unbalanced radial distribution system for loss minimization using particle swarm optimization","authors":"P. U. Reddy, M. Lakshmikantha Reddy, S. Sivanagaraju, P. Raju","doi":"10.1109/APCET.2012.6302036","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302036","url":null,"abstract":"This paper describes an approach for modelling of automatic voltage regulator using the forward/backward sweep-based algorithms for unbalanced radial distribution systems. Power loss indices are first found at each branch except source bus and the bus that has the highest power loss index are picked as the best location for the voltage regulators placement. To obtain the tap position of the voltage regulators that maintain the voltages within the limits of the unbalanced radial distribution systems by minimizing an objective function, consisting of power loss. PSO is used to find the selection of tap position of the voltage regulators. An algorithm makes the initial selection, installation and tap position setting of the voltage regulators to provide a good voltage profile and to minimize power loss along the distribution network. The effectiveness of the proposed method is illustrated on a test system of 25 bus unbalanced radial distribution systems.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126861677","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302008
V. A. Lakshmi, T. Reddy, G. Satheesh, V. Reddy, M. Kalavathi
This paper presents a simplified space vector based pulse width modulation (SVPWM) techniques for the mitigation of common mode voltage (CMV) in direct torque controlled induction motor drive. In the proposed PWM method, simplified near state PWM algorithm (NSPWM) and active zero state based PWM algorithm (AZPWM6) is considered and the proposed algorithms switching times are calculated from the sampled phase voltages. Hence it reduces the complexity involved in calculation of sector and angle identification in comparison with the conventional space vector modulation technique. Moreover, in the proposed PWM algorithms active voltage vectors are used for the composition of reference voltage vector. To validate the proposed algorithm, simulation studies have been carried out using MATLAB-Simulink and results have been presented.
{"title":"Simplified space vector based voltage modulation techniques for the mitigation of common mode voltage in induction motor drives","authors":"V. A. Lakshmi, T. Reddy, G. Satheesh, V. Reddy, M. Kalavathi","doi":"10.1109/APCET.2012.6302008","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302008","url":null,"abstract":"This paper presents a simplified space vector based pulse width modulation (SVPWM) techniques for the mitigation of common mode voltage (CMV) in direct torque controlled induction motor drive. In the proposed PWM method, simplified near state PWM algorithm (NSPWM) and active zero state based PWM algorithm (AZPWM6) is considered and the proposed algorithms switching times are calculated from the sampled phase voltages. Hence it reduces the complexity involved in calculation of sector and angle identification in comparison with the conventional space vector modulation technique. Moreover, in the proposed PWM algorithms active voltage vectors are used for the composition of reference voltage vector. To validate the proposed algorithm, simulation studies have been carried out using MATLAB-Simulink and results have been presented.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"75 11-12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132025947","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 : 2012-09-13DOI: 10.1109/APCET.2012.6301989
R. K. Pandey, D. S. Chaitanya
This paper presents an acceptable solution for Available Transfer Capability (ATC) enhancement. This has been accomplished with Static Synchronous Series Compensation (SSSC) and Unified Power Flow Controller (UPFC). The optimal usage of SSSC and UPFC leads to maximization of Total Transfer Capability (TTC). To illustrate the applicability of proposed approach and gain confidence, a case study has been done on a modified IEEE 30 bus system divided into two areas with eight interconnecting transmission lines using PSAT (Power System Analysis Tool Box) software. Calculations of ATC have been done with PSAT. The results demonstrate the capability of approach in ATC enhancement which may form a basis for existing transmission lines upgradation.
{"title":"An effective approach for ATC enhancement with FACTS device - A case study","authors":"R. K. Pandey, D. S. Chaitanya","doi":"10.1109/APCET.2012.6301989","DOIUrl":"https://doi.org/10.1109/APCET.2012.6301989","url":null,"abstract":"This paper presents an acceptable solution for Available Transfer Capability (ATC) enhancement. This has been accomplished with Static Synchronous Series Compensation (SSSC) and Unified Power Flow Controller (UPFC). The optimal usage of SSSC and UPFC leads to maximization of Total Transfer Capability (TTC). To illustrate the applicability of proposed approach and gain confidence, a case study has been done on a modified IEEE 30 bus system divided into two areas with eight interconnecting transmission lines using PSAT (Power System Analysis Tool Box) software. Calculations of ATC have been done with PSAT. The results demonstrate the capability of approach in ATC enhancement which may form a basis for existing transmission lines upgradation.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"102 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113985096","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 : 2012-09-13DOI: 10.1109/APCET.2012.6301992
P. Kayal, S. Chanda, T. Das, A. Şen, C. K. Chanda
The objective of congestion management is to take actions or control measures in order to avoid line overloading of transmission networks. A restructuring based congestion management technique has been proposed in this paper. Proposed methodology can ensure an appropriate level of voltage stability enhancement of network. Minimization of system power losses is also obtained. A novel voltage stability index is derived in this paper which can quantify the condition of whole system on the viewpoint of voltage collapse. The effectiveness of the proposed method is illustrated on IEEE 14-bus reliability test system.
{"title":"Congestion management in transmission network on viewpoint of voltage stability enhancement","authors":"P. Kayal, S. Chanda, T. Das, A. Şen, C. K. Chanda","doi":"10.1109/APCET.2012.6301992","DOIUrl":"https://doi.org/10.1109/APCET.2012.6301992","url":null,"abstract":"The objective of congestion management is to take actions or control measures in order to avoid line overloading of transmission networks. A restructuring based congestion management technique has been proposed in this paper. Proposed methodology can ensure an appropriate level of voltage stability enhancement of network. Minimization of system power losses is also obtained. A novel voltage stability index is derived in this paper which can quantify the condition of whole system on the viewpoint of voltage collapse. The effectiveness of the proposed method is illustrated on IEEE 14-bus reliability test system.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123890048","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 : 2012-09-13DOI: 10.1109/APCET.2012.6302014
B. K. Sahu, P. Mohanty, S. Panda, S. Kar, N. Mishra
This paper deals with the design of Proportional, Integral, and Derivative (PID) controller to an Automatic Voltage Regulator (AVR) tuned by recently developed Simplified Particle Swarm Optimization algorithm so called, Many Optimizing Liaisons (MOL) algorithm. MOL simplifies the original PSO by randomly choosing the particle to update, instead of iterating over the entire swarm thus eliminating the particle's best known position and making it easier to tune the behavioural parameters. The proposed method is compared with the earlier used PSO algorithm. For performance studies; Transient response analysis, Bode plot analysis and Root locus analysis are explained in details. The robustness analysis is done by varying the time constants of amplifier, exciter, generator & sensor in the range of -50% to + 50% with a step size of 25% respectively. The results of these analyses using the MOL algorithm are found to be better with respect to the analysis of the PID controller using PSO algorithm.
{"title":"Design and comparative performance analysis of PID controlled automatic voltage regulator tuned by many optimizing liaisons","authors":"B. K. Sahu, P. Mohanty, S. Panda, S. Kar, N. Mishra","doi":"10.1109/APCET.2012.6302014","DOIUrl":"https://doi.org/10.1109/APCET.2012.6302014","url":null,"abstract":"This paper deals with the design of Proportional, Integral, and Derivative (PID) controller to an Automatic Voltage Regulator (AVR) tuned by recently developed Simplified Particle Swarm Optimization algorithm so called, Many Optimizing Liaisons (MOL) algorithm. MOL simplifies the original PSO by randomly choosing the particle to update, instead of iterating over the entire swarm thus eliminating the particle's best known position and making it easier to tune the behavioural parameters. The proposed method is compared with the earlier used PSO algorithm. For performance studies; Transient response analysis, Bode plot analysis and Root locus analysis are explained in details. The robustness analysis is done by varying the time constants of amplifier, exciter, generator & sensor in the range of -50% to + 50% with a step size of 25% respectively. The results of these analyses using the MOL algorithm are found to be better with respect to the analysis of the PID controller using PSO algorithm.","PeriodicalId":184844,"journal":{"name":"2012 International Conference on Advances in Power Conversion and Energy Technologies (APCET)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126802442","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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