Pub Date : 2014-09-01DOI: 10.1109/ISEG.2014.7005600
Narendra Kumar Yegireddy, S. Panda
The proportional-integral-derivative(PID) controllers in the process plants like thermal power plants, biomedical instrumentation is of popular use. The priority of such controllers is obviously a fine tuning as a high degree of industrial expertise is required for any other alternative. So in order to get the best results of PID controllers the optimal tuning of PID gains are required. This paper presents the design and performance analysis of proportional integral derivative (PID) controller for the Automatic Voltage Regulator (AVR) system using multi objective non dominated sorting genetic algorithm-II(NSGA-II). It is required to develop the electronic control system for the synchronous generator for the stable operation of power system. The Automatic Voltage Regulator (AVR) is widely used in electrical power field to obtain the stability and good regulation of the electric system. The characteristics of alternator output required are constant voltage and constant current. To get the constant output, alternator field excitation is controlled by Automatic Voltage Regulator (AVR). The Automatic Voltage Regulator maintains the constant voltage up to certain level of load current independently of generator speed and load. This paper further deals with the robustness analysis of the AVR system tuned by NSGA-II algorithm is performed by varying the time constants of amplifier, exciter, generator and sensor in the range of-50% to +50% insteps of +25%.
{"title":"Design and performance analysis of PID controller for an AVR system using multi-objective non-dominated shorting genetic algorithm-II","authors":"Narendra Kumar Yegireddy, S. Panda","doi":"10.1109/ISEG.2014.7005600","DOIUrl":"https://doi.org/10.1109/ISEG.2014.7005600","url":null,"abstract":"The proportional-integral-derivative(PID) controllers in the process plants like thermal power plants, biomedical instrumentation is of popular use. The priority of such controllers is obviously a fine tuning as a high degree of industrial expertise is required for any other alternative. So in order to get the best results of PID controllers the optimal tuning of PID gains are required. This paper presents the design and performance analysis of proportional integral derivative (PID) controller for the Automatic Voltage Regulator (AVR) system using multi objective non dominated sorting genetic algorithm-II(NSGA-II). It is required to develop the electronic control system for the synchronous generator for the stable operation of power system. The Automatic Voltage Regulator (AVR) is widely used in electrical power field to obtain the stability and good regulation of the electric system. The characteristics of alternator output required are constant voltage and constant current. To get the constant output, alternator field excitation is controlled by Automatic Voltage Regulator (AVR). The Automatic Voltage Regulator maintains the constant voltage up to certain level of load current independently of generator speed and load. This paper further deals with the robustness analysis of the AVR system tuned by NSGA-II algorithm is performed by varying the time constants of amplifier, exciter, generator and sensor in the range of-50% to +50% insteps of +25%.","PeriodicalId":105826,"journal":{"name":"2014 International Conference on Smart Electric Grid (ISEG)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121455250","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 : 2014-09-01DOI: 10.1109/ISEG.2014.7005598
G. Kumar, N. Pindoriya
Outage detection is the first and foremost step in the electric power distribution outage management system (OMS). Unplanned outage detection is very important for improving the distribution system reliability and accessibility. Traditionally, customers' trouble calls are the primary source of outage notification. However, customers report only one third of outages in the first hour of outages. The advanced metering infrastructure (AMI) could send outage notifications almost instantly to the utility and could also give restoration notification when power is restored. AMI data may be corrupted due to communication channel noise and there may also be unnecessary outage notifications due to the temporary outages. In this paper, an algorithm is proposed to filter out the meter notifications due to corrupted data and temporary outages of duration less than one minute. An AMI data filter is modelled by probabilistic and fuzzy membership functions to remove the corrupted data. Integration of distribution supervisory control and data acquisition (SCADA) system with AMI for outage location finding is also proposed by fuzzy membership function based model. Proposed models have been tested on a radial distribution test feeder and results are analysed.
{"title":"Outage management system for power distribution network","authors":"G. Kumar, N. Pindoriya","doi":"10.1109/ISEG.2014.7005598","DOIUrl":"https://doi.org/10.1109/ISEG.2014.7005598","url":null,"abstract":"Outage detection is the first and foremost step in the electric power distribution outage management system (OMS). Unplanned outage detection is very important for improving the distribution system reliability and accessibility. Traditionally, customers' trouble calls are the primary source of outage notification. However, customers report only one third of outages in the first hour of outages. The advanced metering infrastructure (AMI) could send outage notifications almost instantly to the utility and could also give restoration notification when power is restored. AMI data may be corrupted due to communication channel noise and there may also be unnecessary outage notifications due to the temporary outages. In this paper, an algorithm is proposed to filter out the meter notifications due to corrupted data and temporary outages of duration less than one minute. An AMI data filter is modelled by probabilistic and fuzzy membership functions to remove the corrupted data. Integration of distribution supervisory control and data acquisition (SCADA) system with AMI for outage location finding is also proposed by fuzzy membership function based model. Proposed models have been tested on a radial distribution test feeder and results are analysed.","PeriodicalId":105826,"journal":{"name":"2014 International Conference on Smart Electric Grid (ISEG)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116605545","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 : 2014-09-01DOI: 10.1109/ISEG.2014.7005581
P. Sudha Rani, K. Prasadarao, K. Subbarao
In last few years there is growing interest in multilevel topologies, because of many possibilities of expanding areas of power electronics use. It can also extend the application of power converters to higher voltage and power ratio. Multilevel inverters have attractive features like they requires the least number of components among all other Inverters to achieve the same number voltage levels, there exists no EMI problem. The general function of this multilevel inverter is to synthesize a desired voltage from several DC sources. In this paper mainly concentrated on reducing the number of switches and voltage sources. This paper illustrated that comparison between symmetrical and asymmetrical topologies for twenty five level simulations are presented using MATLAB/SIMULINK software.
{"title":"Comparison of symmetrical and asymmetrical multilevel inverter topologies with reduced number of switches","authors":"P. Sudha Rani, K. Prasadarao, K. Subbarao","doi":"10.1109/ISEG.2014.7005581","DOIUrl":"https://doi.org/10.1109/ISEG.2014.7005581","url":null,"abstract":"In last few years there is growing interest in multilevel topologies, because of many possibilities of expanding areas of power electronics use. It can also extend the application of power converters to higher voltage and power ratio. Multilevel inverters have attractive features like they requires the least number of components among all other Inverters to achieve the same number voltage levels, there exists no EMI problem. The general function of this multilevel inverter is to synthesize a desired voltage from several DC sources. In this paper mainly concentrated on reducing the number of switches and voltage sources. This paper illustrated that comparison between symmetrical and asymmetrical topologies for twenty five level simulations are presented using MATLAB/SIMULINK software.","PeriodicalId":105826,"journal":{"name":"2014 International Conference on Smart Electric Grid (ISEG)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123448771","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 : 2014-09-01DOI: 10.1109/ISEG.2014.7005605
R. K. Rao, P. Srinivas, S. Kranthikumar
This paper presents the modeling and simulation of electrical water pumping system using solar energy. Now-a-days PV array is increasingly employed for water pumping system. In this paper, the developed boost converter steps up the voltage produced by the PV array to a value which is suitable to run a single-phase induction motor. The inverter converts DC to AC is controlled by using sinusoidal pulse width modulation (SPWM) technique. By using a LC filter the harmonics are eliminated and pure sine wave is obtained which can be directly used to drive a single-phase induction motor and pump system. The Experimental investigation presented gives the utility of such a drive system. A design of directly coupled solar water pumping system powered from photovoltaic panels, DC to DC Boost converter, full bridge sinusoidal pulse width modulation (SPWM) inverter, LC filter, induction motor and centrifugal pump is presented. The PID feedback controller is used to control the voltage. The model was implemented using MATLABI Simulink with SPWM controlled inverter model.
本文介绍了太阳能电动抽水系统的建模与仿真。目前，光伏阵列越来越多地应用于抽水系统。在本文中，开发的升压变换器将光伏阵列产生的电压升压到适合单相感应电动机运行的值。逆变器采用正弦脉宽调制(SPWM)技术控制直流转交流。采用LC滤波器消除谐波，得到纯净的正弦波，可直接用于驱动单相感应电机和泵系统。实验研究给出了这种驱动系统的实用性。提出了一种由光伏板、DC - DC Boost变换器、全桥正弦脉宽调制(SPWM)逆变器、LC滤波器、感应电机和离心泵供电的直接耦合太阳能水泵系统的设计方案。采用PID反馈控制器对电压进行控制。该模型采用matlab Simulink实现，采用SPWM控制的逆变器模型。
{"title":"Simulation and analysis of electrical water pumping system using solar energy","authors":"R. K. Rao, P. Srinivas, S. Kranthikumar","doi":"10.1109/ISEG.2014.7005605","DOIUrl":"https://doi.org/10.1109/ISEG.2014.7005605","url":null,"abstract":"This paper presents the modeling and simulation of electrical water pumping system using solar energy. Now-a-days PV array is increasingly employed for water pumping system. In this paper, the developed boost converter steps up the voltage produced by the PV array to a value which is suitable to run a single-phase induction motor. The inverter converts DC to AC is controlled by using sinusoidal pulse width modulation (SPWM) technique. By using a LC filter the harmonics are eliminated and pure sine wave is obtained which can be directly used to drive a single-phase induction motor and pump system. The Experimental investigation presented gives the utility of such a drive system. A design of directly coupled solar water pumping system powered from photovoltaic panels, DC to DC Boost converter, full bridge sinusoidal pulse width modulation (SPWM) inverter, LC filter, induction motor and centrifugal pump is presented. The PID feedback controller is used to control the voltage. The model was implemented using MATLABI Simulink with SPWM controlled inverter model.","PeriodicalId":105826,"journal":{"name":"2014 International Conference on Smart Electric Grid (ISEG)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132015312","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 : 2014-09-01DOI: 10.1109/ISEG.2014.7005576
T. L. Bonde, A. Fadnis, D. R. Tutakane
This Paper describes a method of generating two phase supply for two phase inductor motor. The novelty of scheme is a simple algorithm and the scheme can be fabricated as integrator chip iS2MC. Matrix converter (MC) technology is already used in industrial applications, but is limited to three-phase induction motor with three-phase power line. It has no limit on output frequency due to the fact that it uses semiconductor switches with controlled turn-off capability. The circuit which consists of 8 bidirectional switches, enables a two-phase induction motor to be driven by single-phase power line without smoothing capacitors The MC generates independent two-phase voltages controlled by a simple switching algorithm, Two-phase motor driven by MC eliminates start-run capacitors and generates more torque than the three-phase motor. The performance of the system with symmetrical two-phase induction motor was confirmed by simulation.
{"title":"Simulation of two phase matrix converter for driving a two phase induction motor","authors":"T. L. Bonde, A. Fadnis, D. R. Tutakane","doi":"10.1109/ISEG.2014.7005576","DOIUrl":"https://doi.org/10.1109/ISEG.2014.7005576","url":null,"abstract":"This Paper describes a method of generating two phase supply for two phase inductor motor. The novelty of scheme is a simple algorithm and the scheme can be fabricated as integrator chip iS2MC. Matrix converter (MC) technology is already used in industrial applications, but is limited to three-phase induction motor with three-phase power line. It has no limit on output frequency due to the fact that it uses semiconductor switches with controlled turn-off capability. The circuit which consists of 8 bidirectional switches, enables a two-phase induction motor to be driven by single-phase power line without smoothing capacitors The MC generates independent two-phase voltages controlled by a simple switching algorithm, Two-phase motor driven by MC eliminates start-run capacitors and generates more torque than the three-phase motor. The performance of the system with symmetrical two-phase induction motor was confirmed by simulation.","PeriodicalId":105826,"journal":{"name":"2014 International Conference on Smart Electric Grid (ISEG)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127515356","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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