Pub Date : 2015-09-24DOI: 10.1109/ICPACE.2015.7274953
Kashyap Vasudevan, Chandra Shekhar Reddy Atla, K. Balaraman
With the increasing penetration of Distributed Energy Resources (DERs), a fast and reliable Distribution System State Estimation (DSSE) of a distribution system, with reasonable accuracy, has become vital for all planning and operating studies. However, as a distribution system cannot have measurement devices at all nodes, this estimation must rely on least possible measurements. This paper proposes an algorithm to place the optimum number and location of measurement devices on a radial distribution network. The algorithm is based on backward-forward sweep method for the state estimation and a search algorithm for decision making. The possible uncertainties introduced by the measurement devices and the random changes in the loading conditions are considered to yield a reliable solution to the placement problem. The accuracy of the solution is obtained through a Weighted Least Square (WLS) approach. This approach is demonstrated on a benchmark network.
{"title":"Improved State Estimation by optimal placement of measurement devices in Distribution System with DERs","authors":"Kashyap Vasudevan, Chandra Shekhar Reddy Atla, K. Balaraman","doi":"10.1109/ICPACE.2015.7274953","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274953","url":null,"abstract":"With the increasing penetration of Distributed Energy Resources (DERs), a fast and reliable Distribution System State Estimation (DSSE) of a distribution system, with reasonable accuracy, has become vital for all planning and operating studies. However, as a distribution system cannot have measurement devices at all nodes, this estimation must rely on least possible measurements. This paper proposes an algorithm to place the optimum number and location of measurement devices on a radial distribution network. The algorithm is based on backward-forward sweep method for the state estimation and a search algorithm for decision making. The possible uncertainties introduced by the measurement devices and the random changes in the loading conditions are considered to yield a reliable solution to the placement problem. The accuracy of the solution is obtained through a Weighted Least Square (WLS) approach. This approach is demonstrated on a benchmark network.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"1 1","pages":"253-257"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76163387","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274907
Prakash Kumar, Gaurav Jain, D. K. Palwalia
This paper presents genetic algorithm (GA) based maximum power point tracking (MPPT) for photovoltaic (PV) array integrated with battery storage unit (BSU) as power generation unit in standalone mode. PV generation depends on solar irradiance, site location and environmental factors like temperature, wind and. Thus output of PV output is fluctuating in nature and the addition of non linear load make the situation more critical. GA based MPPT for PV generation works for local optimal solution. DC/DC and boost converter has been used to obtain rated desired rated voltage. BSU acts as secondary source to ensure uninterrupted power supply. A suitable three phase voltage source inverter (VSI), at point of common coupling (PCC), provides regulated power supply. Boost converters incorporating proportional controller (PI) increases PV voltage up to 400V. Conventionally used perturb and observe (PO) algorithm has been used for comparative study. Controlled pulse width modulated (PWM) switching pulse for converter unit and single section LC filter at output terminal eliminates harmonic components. To exhibit the system compatibility resistive, reactive, asynchronous induction motor and nonlinear load has been switched at different instants for variable solar irradiance and temperature.
{"title":"Genetic algorithm based maximum power tracking in solar power generation","authors":"Prakash Kumar, Gaurav Jain, D. K. Palwalia","doi":"10.1109/ICPACE.2015.7274907","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274907","url":null,"abstract":"This paper presents genetic algorithm (GA) based maximum power point tracking (MPPT) for photovoltaic (PV) array integrated with battery storage unit (BSU) as power generation unit in standalone mode. PV generation depends on solar irradiance, site location and environmental factors like temperature, wind and. Thus output of PV output is fluctuating in nature and the addition of non linear load make the situation more critical. GA based MPPT for PV generation works for local optimal solution. DC/DC and boost converter has been used to obtain rated desired rated voltage. BSU acts as secondary source to ensure uninterrupted power supply. A suitable three phase voltage source inverter (VSI), at point of common coupling (PCC), provides regulated power supply. Boost converters incorporating proportional controller (PI) increases PV voltage up to 400V. Conventionally used perturb and observe (PO) algorithm has been used for comparative study. Controlled pulse width modulated (PWM) switching pulse for converter unit and single section LC filter at output terminal eliminates harmonic components. To exhibit the system compatibility resistive, reactive, asynchronous induction motor and nonlinear load has been switched at different instants for variable solar irradiance and temperature.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"31 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78999667","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274922
R. Sengupta, V. Prashant, Tapas Chakrabarti, S. Sarkar
This work is concentrated on developing a model of PIN solar cell with some III-V compound material. Two new compound materials are used in this solar cell. One of them consists of Gallium Indium Phospide (GaInP) and Aluminium (Al), which reached the band-gap energy of 4.30eV with an absorption coefficient of 1.69e-4 cm-1. Another one consists of Gallium Arsenide (GaAs) and Aluminium (Al), reaching a band gap energy (Eg) of 4.6 eV and absorption coefficient of 1.81e-4 cm-1. As the band gap energy of the material is increased, the material can absorb more photon energy from the optical source and can convert the optical energy into electrical energy more efficiently. The new modeled PIN solar cell made of AlGaInP/AlGaAs has been developed in SILVACO TCAD which is a virtual fabrication and simulation lab. The cell has achieved the conversion efficiency of 51.50% with a Fill Factor (FF) of 91% under the AM1.5 illumination (1000 suns).
{"title":"Modeling, simulation and comparative study of new compound alloy based P-I-N solar cells - An efficient way of energy management","authors":"R. Sengupta, V. Prashant, Tapas Chakrabarti, S. Sarkar","doi":"10.1109/ICPACE.2015.7274922","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274922","url":null,"abstract":"This work is concentrated on developing a model of PIN solar cell with some III-V compound material. Two new compound materials are used in this solar cell. One of them consists of Gallium Indium Phospide (GaInP) and Aluminium (Al), which reached the band-gap energy of 4.30eV with an absorption coefficient of 1.69e-4 cm-1. Another one consists of Gallium Arsenide (GaAs) and Aluminium (Al), reaching a band gap energy (Eg) of 4.6 eV and absorption coefficient of 1.81e-4 cm-1. As the band gap energy of the material is increased, the material can absorb more photon energy from the optical source and can convert the optical energy into electrical energy more efficiently. The new modeled PIN solar cell made of AlGaInP/AlGaAs has been developed in SILVACO TCAD which is a virtual fabrication and simulation lab. The cell has achieved the conversion efficiency of 51.50% with a Fill Factor (FF) of 91% under the AM1.5 illumination (1000 suns).","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"6 1","pages":"86-89"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74791753","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274927
I. Trivedi, Dhaval K. Thesiya, A. Esmat, Pradeep Jangir
Micro-grids have spread in many distribution systems worldwide. They offer safe and reliable operation for their consumers by managing the micro-grids' power generation and trading with the main grid. Furthermore, micro-grids can help in integrating and promoting for Renewable Energy Sources (RES) and reducing the environmental impacts of traditional centralized generation. This paper proposes multiple environment dispatch problem solution in micro-grids using Ant Colony Optimization (ACO) technique to solve the generation dispatch problem. A combined cost optimization scheme is investigated to minimize both operational cost and emission levels while satisfying the micro-grid's load demand. Furthermore, the proposed multiple environment dispatch problem solution is used to evaluate promoting RES implementation in micro-grids despite of their high capital cost using the combined economic emission dispatch problem. The proposed multiple environment dispatch solution was implemented using MatLab and tested on two case studies with and without RES-Wind Turbine-Solar (WT-PV). The obtained results from the proposed technique are compared with those calculated using other Techniques; Gradient to evaluate the proposed method. The outcomes are evaluated and discussed. Finally, conclusions are reported.
微电网已经在世界范围内的许多配电系统中广泛应用。他们通过管理微电网的发电和与主电网的交易，为用户提供安全可靠的运行。此外，微电网可以帮助整合和促进可再生能源(RES)，减少传统集中式发电对环境的影响。本文提出了一种利用蚁群优化技术求解微电网多环境调度问题的方法。在满足微网负荷需求的前提下，提出了一种综合成本优化方案。在此基础上，利用提出的多环境调度问题方案，结合经济排放调度问题，对微电网在高投资成本条件下促进可再生能源的实施进行了评估。提出的多环境调度解决方案在MatLab中实现，并在两个案例研究中测试了有无RES-Wind - turne - solar (WT-PV)。将该方法的计算结果与其他方法的计算结果进行了比较;提出了梯度评价方法。评估和讨论结果。最后，报告了结论。
{"title":"A multiple environment dispatch problem solution using ant colony optimization for micro-grids","authors":"I. Trivedi, Dhaval K. Thesiya, A. Esmat, Pradeep Jangir","doi":"10.1109/ICPACE.2015.7274927","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274927","url":null,"abstract":"Micro-grids have spread in many distribution systems worldwide. They offer safe and reliable operation for their consumers by managing the micro-grids' power generation and trading with the main grid. Furthermore, micro-grids can help in integrating and promoting for Renewable Energy Sources (RES) and reducing the environmental impacts of traditional centralized generation. This paper proposes multiple environment dispatch problem solution in micro-grids using Ant Colony Optimization (ACO) technique to solve the generation dispatch problem. A combined cost optimization scheme is investigated to minimize both operational cost and emission levels while satisfying the micro-grid's load demand. Furthermore, the proposed multiple environment dispatch problem solution is used to evaluate promoting RES implementation in micro-grids despite of their high capital cost using the combined economic emission dispatch problem. The proposed multiple environment dispatch solution was implemented using MatLab and tested on two case studies with and without RES-Wind Turbine-Solar (WT-PV). The obtained results from the proposed technique are compared with those calculated using other Techniques; Gradient to evaluate the proposed method. The outcomes are evaluated and discussed. Finally, conclusions are reported.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"154 1","pages":"109-115"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74740232","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274969
Hari Om Vishwakarma, K. S. Sajan, Bhaskar Maheshwari, Yougal Deep Dhiman
In this paper an intelligent condition monitoring of induction motor based on the wavelet packet decomposition and time domain features have been presented. The classification has been done using the support vector machine (SVM) on the basis of statistical learning theory. The data has been collected on a 10 HP induction motor in the lab having different bearing defects using piezoelectric type accelerometer. The signal is then processed to extract the time domain and wavelet features. Wavelet packet decomposition is used to extract the features from time-frequency domain. In this work, 3rd level wavelet packet decomposition has been considered. The experimental results shows that the classification of the bearing faults of the induction motor based on wavelet packet decomposition and time domain features and pattern recognition using support vector machine provides a new approach for intelligent bearing fault diagnosis of induction motor. GUI using MATLAB is developed for the work to make it more users friendly.
{"title":"Intelligent bearing fault monitoring system using support vector machine and wavelet packet decomposition for induction motors","authors":"Hari Om Vishwakarma, K. S. Sajan, Bhaskar Maheshwari, Yougal Deep Dhiman","doi":"10.1109/ICPACE.2015.7274969","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274969","url":null,"abstract":"In this paper an intelligent condition monitoring of induction motor based on the wavelet packet decomposition and time domain features have been presented. The classification has been done using the support vector machine (SVM) on the basis of statistical learning theory. The data has been collected on a 10 HP induction motor in the lab having different bearing defects using piezoelectric type accelerometer. The signal is then processed to extract the time domain and wavelet features. Wavelet packet decomposition is used to extract the features from time-frequency domain. In this work, 3rd level wavelet packet decomposition has been considered. The experimental results shows that the classification of the bearing faults of the induction motor based on wavelet packet decomposition and time domain features and pattern recognition using support vector machine provides a new approach for intelligent bearing fault diagnosis of induction motor. GUI using MATLAB is developed for the work to make it more users friendly.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"1 1","pages":"339-343"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76787358","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274947
Sharana Reddy, B. Basavaraja
A Pulse Width Modulation (PWM) Voltage Source Inverter (VSI) fed induction motor drive has superior dynamic characteristics than sine wave driven induction motor. But it has a problem with induced bearing voltage and high frequency bearing current that flows through bearings due to parasitic capacitive coupling that results in premature bearing failure. In many industrial applications the PWM inverters and motors must be at separate locations thus requiring long motor cable, which contributes over voltage and higher common mode voltage at the motor terminal due to voltage reflection phenomenon. Higher common mode voltage results in higher induced shaft voltage and bearing currents. This paper presents simulation and analysis of influence of motor cable length on the magnitude of common mode voltage, bearing voltage and bearing current in two level and three level diode clamped multilevel inverter fed induction motor drive. The dv/dt of common mode voltage and bearing voltage also presented. Simulation is carried out using MATLAB/simulink.
{"title":"Simulation and analysis of common mode voltage, bearing voltage and bearing current in two-level and three-level PWM inverter fed induction motor drive with long cable","authors":"Sharana Reddy, B. Basavaraja","doi":"10.1109/ICPACE.2015.7274947","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274947","url":null,"abstract":"A Pulse Width Modulation (PWM) Voltage Source Inverter (VSI) fed induction motor drive has superior dynamic characteristics than sine wave driven induction motor. But it has a problem with induced bearing voltage and high frequency bearing current that flows through bearings due to parasitic capacitive coupling that results in premature bearing failure. In many industrial applications the PWM inverters and motors must be at separate locations thus requiring long motor cable, which contributes over voltage and higher common mode voltage at the motor terminal due to voltage reflection phenomenon. Higher common mode voltage results in higher induced shaft voltage and bearing currents. This paper presents simulation and analysis of influence of motor cable length on the magnitude of common mode voltage, bearing voltage and bearing current in two level and three level diode clamped multilevel inverter fed induction motor drive. The dv/dt of common mode voltage and bearing voltage also presented. Simulation is carried out using MATLAB/simulink.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"17 1","pages":"221-226"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78615895","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274977
N. Sunitha, K. Ravi, R. Prakash, Pushpanjali
In practice insulators are exposed to various weather conditions throughout the year and they influence surface of the polymeric insulators. This paper deals with study on the leakage current of polluted polymeric insulators. It is well known that polymeric insulators are having very good hydrophobicity. Researchers are presently working on the recovery of hydrophobicity and also on hydrophobicity of polluted polymeric insulators. In this regard, it is to be understood that whether hydrophobicity still persists for medium and heavily polluted polymeric insulators. ie, whether hydrophobicity transfer occurs on a polluted polymer insulators. This experimental investigation is being carried out in order to understand whether hydrophobicity persists for thin, medium and thickly coated polymeric insulators. The paper gives the results of the experiments. It can be observed from the results that thin coating on polymer insulators results in lower current and the thickly coated polymer insulators draws higher currents and the current drawn by the medium coated insulator falls in between.
{"title":"A study on leakage current characteristics of polymeric insulators for different pollution layers","authors":"N. Sunitha, K. Ravi, R. Prakash, Pushpanjali","doi":"10.1109/ICPACE.2015.7274977","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274977","url":null,"abstract":"In practice insulators are exposed to various weather conditions throughout the year and they influence surface of the polymeric insulators. This paper deals with study on the leakage current of polluted polymeric insulators. It is well known that polymeric insulators are having very good hydrophobicity. Researchers are presently working on the recovery of hydrophobicity and also on hydrophobicity of polluted polymeric insulators. In this regard, it is to be understood that whether hydrophobicity still persists for medium and heavily polluted polymeric insulators. ie, whether hydrophobicity transfer occurs on a polluted polymer insulators. This experimental investigation is being carried out in order to understand whether hydrophobicity persists for thin, medium and thickly coated polymeric insulators. The paper gives the results of the experiments. It can be observed from the results that thin coating on polymer insulators results in lower current and the thickly coated polymer insulators draws higher currents and the current drawn by the medium coated insulator falls in between.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"61 1","pages":"383-387"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80590593","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274950
M. Ahmed, A. Usha, I. Shirsi, B. Singh, B. Prakash
This paper is a conversion solution to an advanced development of critical power supply systems in military application. A compact size high power density i.e. 25.26 watt/inch3 DC-DC converter is designed and developed. An appropriate topology of a ZVS based Phase Shifted full -bridge DC-DC converter is selected based on advantages of reduced switching losses and stresses with fixed switching frequency of 100KHZ. A PWM Controller UC1875 is used which has features of programmable output delay for resonant switching action with both voltage and current modes of controlling options. A feed forward voltage mode control is utilized which is easier to design and analyze with good noise margin and stable modulation process and improved line regulation. The Proposed topology is implemented on a hardware prototype with a single output of 30V/10A using input voltage that ranges from 18-36V with an efficiency greater than 80%. An opto-isolation is provided instead of transformer for feedback loop to minimize the size, complexity and cost. A fault tolerant design, this converter host circuit protection features such as over voltage, over current, efficient thermal protection and inbuilt EMI/EMC filters. The converter is realized in a very small size of 102mm×92mm×20.5mm aluminum package.
{"title":"A Feed forward Voltage Mode Controlled ZVS based Phase shifted 300W full bridge DC-DC converter for military application","authors":"M. Ahmed, A. Usha, I. Shirsi, B. Singh, B. Prakash","doi":"10.1109/ICPACE.2015.7274950","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274950","url":null,"abstract":"This paper is a conversion solution to an advanced development of critical power supply systems in military application. A compact size high power density i.e. 25.26 watt/inch3 DC-DC converter is designed and developed. An appropriate topology of a ZVS based Phase Shifted full -bridge DC-DC converter is selected based on advantages of reduced switching losses and stresses with fixed switching frequency of 100KHZ. A PWM Controller UC1875 is used which has features of programmable output delay for resonant switching action with both voltage and current modes of controlling options. A feed forward voltage mode control is utilized which is easier to design and analyze with good noise margin and stable modulation process and improved line regulation. The Proposed topology is implemented on a hardware prototype with a single output of 30V/10A using input voltage that ranges from 18-36V with an efficiency greater than 80%. An opto-isolation is provided instead of transformer for feedback loop to minimize the size, complexity and cost. A fault tolerant design, this converter host circuit protection features such as over voltage, over current, efficient thermal protection and inbuilt EMI/EMC filters. The converter is realized in a very small size of 102mm×92mm×20.5mm aluminum package.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"224 1","pages":"238-243"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75907371","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274987
Sanket K. Gorade, P. Gandhi, S. Kurode
A simplified mechanical model is presented in this paper for Flexible Inverted Pendulum with Tip Mass on Cart (FTPTMC) system. Also control input to be fed to the cart in order to stabilize the inverted flexible pendulum upright with reduced vibrations, is suggested along with. Flexibility of pendulum is accounted by the assumption of linear springs in system structure. Energy approach is used to frame the mathematical model using first principle method. Validation of proposed model is done by comparison of model simulation outputs with experimental results from actual plant. A simple Proportional Integral Derivative (PID) control is then applied to the system achieving output feedback control. In this process, only the cart motion information is fed back to the controller, while the angular displacement data of flexible inverted pendulum is not available. Yet, the pendulum oscillations are controlled and vibrations are reduced by assigning definite motion to the cart. Simulation outputs show that smooth PID controlled cart movement reduces the pendulum oscillations.
{"title":"Modeling and output feedback control of Flexible Inverted Pendulum on Cart","authors":"Sanket K. Gorade, P. Gandhi, S. Kurode","doi":"10.1109/ICPACE.2015.7274987","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274987","url":null,"abstract":"A simplified mechanical model is presented in this paper for Flexible Inverted Pendulum with Tip Mass on Cart (FTPTMC) system. Also control input to be fed to the cart in order to stabilize the inverted flexible pendulum upright with reduced vibrations, is suggested along with. Flexibility of pendulum is accounted by the assumption of linear springs in system structure. Energy approach is used to frame the mathematical model using first principle method. Validation of proposed model is done by comparison of model simulation outputs with experimental results from actual plant. A simple Proportional Integral Derivative (PID) control is then applied to the system achieving output feedback control. In this process, only the cart motion information is fed back to the controller, while the angular displacement data of flexible inverted pendulum is not available. Yet, the pendulum oscillations are controlled and vibrations are reduced by assigning definite motion to the cart. Simulation outputs show that smooth PID controlled cart movement reduces the pendulum oscillations.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"15 1","pages":"436-440"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85412951","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 : 2015-09-24DOI: 10.1109/ICPACE.2015.7274931
S. K. Bhagat, Amresh Kumar, Binod Rai
Stability analysis of a nonlinear dynamic system is a challenging task since long time in power system. However, in this paper Lyapunov function is used to find the stability of a nonlinear system very easily without calculating the exact solution. The Lyapunov function, that analyzes the stability of single machine infinite bus system, is constructed using Krasovskii's method. The results obtained by the proposed method shows the variation in energy contents with the variation in load angles and load voltages, for a particular value of generator rotor angle.
{"title":"Voltage statbility analysis using Lyapunov function obtained by Krasovskii's method","authors":"S. K. Bhagat, Amresh Kumar, Binod Rai","doi":"10.1109/ICPACE.2015.7274931","DOIUrl":"https://doi.org/10.1109/ICPACE.2015.7274931","url":null,"abstract":"Stability analysis of a nonlinear dynamic system is a challenging task since long time in power system. However, in this paper Lyapunov function is used to find the stability of a nonlinear system very easily without calculating the exact solution. The Lyapunov function, that analyzes the stability of single machine infinite bus system, is constructed using Krasovskii's method. The results obtained by the proposed method shows the variation in energy contents with the variation in load angles and load voltages, for a particular value of generator rotor angle.","PeriodicalId":6644,"journal":{"name":"2015 International Conference on Power and Advanced Control Engineering (ICPACE)","volume":"54 1","pages":"134-138"},"PeriodicalIF":0.0,"publicationDate":"2015-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89958960","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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