2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)最新文献_第9页

A single-stage solar PV power fed Open-End Winding Induction Motor pump drive with MPPT 带MPPT的单级太阳能光伏供电开放式绕组感应电机泵驱动

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7041977

Ramsha Karampuri, Sachin Jain, V. T. Somasekhar

{"title":"A single-stage solar PV power fed Open-End Winding Induction Motor pump drive with MPPT","authors":"Ramsha Karampuri, Sachin Jain, V. T. Somasekhar","doi":"10.1109/PEDES.2014.7041977","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7041977","url":null,"abstract":"In this paper a single-stage solar Photo Voltaic (PV) system feeding the power to an Open-End Winding Induction Motor (OEWIM) via a dual-inverter is presented. The OEWIM is coupled to a centrifugal pump for water pumping application. The dual-inverter fed OEWIM is chosen, as it requires low debus voltage which helps in optimal arrangement of PV modules, which could avoid large strings. In the proposed system a single PV source is connected to both the inverters, which results in zero-sequence current and hence the harmonics in the system. So as to nullify the zero-sequence current in the average sense Sample-Averaged Zero-sequence Elimination (SAZE) Pulse Width Modulation (PWM) technique is adopted. This algorithm ensures the clamping of one of the inverter when the other is being switched; this reduces the switching losses and efficiency may increase which is important factor to be considered in PV system. Also the above algorithm reduces the current ripple at higher modulation indices. The modulation index is tuned by using Maximum Power Point Tracking (MPPT) algorithm for the variations in the insolation and ambient temperature. The detailed explanation of the control algorithm for the proposed system and its simulation results under different environmental conditions are presented.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128895844","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}

引用次数: 13

Detection and identification of stator inter-turn faults in three-phase induction motor in presence of supply unbalance condition 供电不平衡情况下三相异步电动机定子匝间故障的检测与识别

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042142

N. R. Devi, D. Sarma, P. Rao

{"title":"Detection and identification of stator inter-turn faults in three-phase induction motor in presence of supply unbalance condition","authors":"N. R. Devi, D. Sarma, P. Rao","doi":"10.1109/PEDES.2014.7042142","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042142","url":null,"abstract":"Induction machines play a vital role in process industries due to their low cost, ruggedness and low maintenance. Even though the induction machine is very reliable, many failures can occur due to their non-ideal operating conditions. Literature survey reveals that stator faults occupy a prominent place among the reasons for such failures. In particular, an undetected stator inter-turn fault may progressively lead to a permanent damage of the machine. Hence, early detection of stator inter-turn faults is essential for preventing damage to the adjacent coils and the core of the stator. Also, detection of stator inter-turn faults in the presence of supply unbalance is another challenging task. This paper proposes a new adaptive approach based on wavelet multi-resolution analysis for detecting and identifying the stator inter-turn faults. A fault index is defined based on the slope of detail coefficients to compare with an adaptive threshold for setting the flags. A fault is detected when the flag count reaches 6 over a moving window of 10 samples. Severity of the fault is identified by defining a sensitivity index based on the three phase energies of 4th level approximate coefficients. The proposed method is verified by using experimental data considering supply unbalance as well. Results indicate the effectiveness of the proposed method.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129065350","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}

引用次数: 2

Coupled inductor based derivatives of Current-Fed Switched Inverter 基于耦合电感的电流型开关逆变器导数

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042029

S. Nag, S. Mishra

引用次数: 1

A grid simulator to evaluate control performance of grid-connected inverters 一种评估并网逆变器控制性能的电网模拟器

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042076

B. A. Karuppaswamy, Srinivas Gulur, V. John

引用次数: 18

A single-phase two-stage grid interfaced SPV system with adjustable DC link voltage for VSC under non ideal grid conditions 非理想电网条件下直流链路电压可调的单相两级电网接口SPV系统

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7041983

Chinmay Jain, Bhim Singh

{"title":"A single-phase two-stage grid interfaced SPV system with adjustable DC link voltage for VSC under non ideal grid conditions","authors":"Chinmay Jain, Bhim Singh","doi":"10.1109/PEDES.2014.7041983","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7041983","url":null,"abstract":"This paper deals with single phase grid interfaced SPV (Solar Photo Voltaic) system. A two stage power circuit topology is used in the presented work, in which the first stage is a boost converter, which serves the purpose of MPPT (Maximum Power Point Tracking) and the second stage is a PV inverter which serves the purpose of feeding extracted energy into the grid. A feed-forward term for solar contribution is used to improve the dynamic response. The PV inverter DC link voltage is continuously adjusted according to PCC (Point of Common Coupling) voltage, which in turn helps in reduction of power losses. A PI (Proportional Integral) controller is used to regulate the DC link voltage to desired reference voltage. The system is modeled and simulated on MATLAB based platform. A wide range of simulation results are shown to demonstrate all features of proposed system. The system is tested considering realistic non ideal grid conditions. The proposed system is advantageous in cases of frequent and sustained grid voltage variations (such is the case of far radial ends of Indian grid). The performance of proposed system is found satisfactory for wide variation of grid voltage. The THD (Total Harmonics Distortion) of grid current has been found well under IEEE-519 standard.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120948724","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}

引用次数: 11

Voltage regulation and stabilization of DC/DC buck converter under constant power loading 恒功率负载下DC/DC降压变换器的稳压与稳定

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042054

Suresh Singh, D. Fulwani

引用次数: 15

Optimal DG placement in unbalanced mesh distribution system for loss reduction and voltage profile improvement 不平衡网格配电系统中减损和改善电压分布的DG优化配置

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042015

B. R. Teja, Ashwani Kumar

引用次数: 6

Electrical source emulation using modular multilevel converter 采用模块化多电平转换器的电源仿真

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042022

M. R. Sreejith, M. Chandorkar

{"title":"Electrical source emulation using modular multilevel converter","authors":"M. R. Sreejith, M. Chandorkar","doi":"10.1109/PEDES.2014.7042022","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042022","url":null,"abstract":"Source emulation is a power level hardware-in-the-loop simulation of different electrical sources. In this method, the mathematical model for an electrical source is solved in real time, and power electronic converter is used to emulate the source characteristics. Source emulation helps in performing the realistic evaluation of different active front-end power electronic converters and grid connected power electronic converters for renewable energy generation systems. Thus, it ensures increased reliability and quality and more efficient development of systems, with reduced testing cost and risk. This paper discusses a source emulator using one of the multilevel converters called modular multilevel converter (MMC). MMC has a modular arm structure with cascade connection of multiple bidirectional chopper cells with floating capacitors. The control and modulation of MMC should be selected such that the sub-module capacitor voltages are equal and independent of load conditions. In the source emulator, an over-current limiting control by virtual resistance principle is implemented to avoid the test equipment damage. The simulation results for the source emulator acting as a grid emulator producing different conditions such as voltage dips, unbalanced voltages, over voltages, frequency changes and harmonic disturbances are presented. The emulation of a synchronous generator is also discussed with simulation results.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127022498","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}

引用次数: 11

Inter leaved buck converter based active power filter control using artificial neural network 基于间叶降压变换器的有源滤波控制

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042017

D. Suresh, S. Singh

{"title":"Inter leaved buck converter based active power filter control using artificial neural network","authors":"D. Suresh, S. Singh","doi":"10.1109/PEDES.2014.7042017","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042017","url":null,"abstract":"This paper present a novel shunt active power filter based on the interleaved buck DC to AC converter. The `shoot through' problem mainly occurs in the conventional active power filter when the same limb of the switches are fired at the simultaneously. The problems encountered with `shoot through' are reduced efficiency, increased temperature in the power switches and electromagnetic interference (EMI). However, the conventional active power filters suffer from `shoot through'. In order to avoid the `shoot through' dead time control could be introduced but it deteriorates the harmonic compensation level. An active power filter based on interleaved buck DC to AC converter with neural network based controller is presented. The compensation process proposed is simple, which is based on sensing line currents and regulating the dc link voltage. Artificial neural network (ANN) control is used to control the dc link voltage in place of the conventional PI controller. The ANN controller trained using data from PI controller. The performance of the ANN controller is compared with the PI controller by MATLAB/Simulink simulation study.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124272319","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}

引用次数: 3

Investigation of ANN tuned PI speed controller of a modified DTC induction motor drive 改进型直接转矩感应电机驱动的人工神经网络调谐PI速度控制器研究

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042146

A. Verma, Bhim Singh, Deepti Yadav

引用次数: 8