2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)最新文献_第3页

Reactive resource reallocation in DG integrated secondary distribution networks with time-series distribution power flow 时序配电潮流下DG集成二次配电网的无功资源再分配

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042111

Kalpesh A. Joshi, N. Pindoriya

{"title":"Reactive resource reallocation in DG integrated secondary distribution networks with time-series distribution power flow","authors":"Kalpesh A. Joshi, N. Pindoriya","doi":"10.1109/PEDES.2014.7042111","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042111","url":null,"abstract":"While penetration of Distributed Generators (DGs) has been increasing with favorable government policies coupled with technological advances in portable deployment of DGs, the challenges of efficient network operations in secondary distribution networks have also become formidable. Among other issues, the real power penetration from PV and Wind generators causes imbalance between real and reactive power flows in low voltage distribution networks where phase unbalancing and variation in demand-supply have dominant effect on voltage profile, overloads, power factor and losses. This paper attempts to apply sequential time simulations approach by performing distribution power flow simulations for time-series data points of demand and generation over a period of one year at 15 minute intervals. This approach helps in capturing the diurnal and seasonal variability of intermittent power producing DGs and that of load profiles. It also helps in undertaking time integral studies for energy losses, number of switching operations by control devices such as shunt compensators and voltage regulators. The results of this exercise are used to propose different switching strategies to limit voltage limit violations while reducing annual energy losses.","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":"130820922","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

A comparison of seven-level inverter topologies for multilevel DC-AC power conversion 多电平直流-交流功率转换的七电平逆变器拓扑比较

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042043

P. Salodkar, N. Sandeep, P. Kulkarni, R. Udaykumar

{"title":"A comparison of seven-level inverter topologies for multilevel DC-AC power conversion","authors":"P. Salodkar, N. Sandeep, P. Kulkarni, R. Udaykumar","doi":"10.1109/PEDES.2014.7042043","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042043","url":null,"abstract":"Multilevel inverter (MLI) performance is high compared to the conventional two level inverters since they offer high power capability, associated with lower output harmonics and lower commutation losses. However the main drawback of MLI is their increased number of power devices, passive components, complex pulse width modulation control and balancing of capacitor voltages. In this paper the most popular topologies like diode-clamped inverter (neutral-point clamped), cascaded multicell with separate dc sources, and transistor clamped H-Bridge inverter are discussed. A simplified multilevel inverter (Switched Transistor MLI) is proposed and its performance is compared with the above said topologies. Component count and the % total harmonic distortion (THD) of the output voltage are considered as the indexes of the comparative performance. The operating principle of each topology, the most relevant modulation method of all the topologies and the detailed analysis of the proposed Switched Transistor MLI is included. The selection of topology and control techniques depends and varies according to power demands of inverter. Simulation study of all the topologies considered is carried out on MATLAB/SIMULINK platform and the performance of the proposed topology is verified experimentally by the tests performed on a scaled laboratory prototype.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"60 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":"130277151","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: 25

A single stage high gain buck-boost inverter with coupled inductor 带耦合电感的单级高增益降压升压逆变器

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042042

T. Sreekanth, N. L. Narasamma, M. Mishra

引用次数: 9

Experimental implementation of a Doubly Fed Induction Generator used for Voltage Regulation at a remote location 用于远程电压调节的双馈感应发电机的实验实现

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7041994

N. K. S. Naidu, Bhim Singh

引用次数: 18

A novel PC based performance measurement tool for prime movers 一种新颖的基于PC的原动机性能测量工具

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7041970

S. S. Kulkarni, Rahul Sadanand Dhond, V. Mehta

引用次数: 0

Analysis of motor starting in a weak microgrid 弱微电网中电机起动分析

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042127

S. Saiprasad, N. Soni, S. Doolla

{"title":"Analysis of motor starting in a weak microgrid","authors":"S. Saiprasad, N. Soni, S. Doolla","doi":"10.1109/PEDES.2014.7042127","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042127","url":null,"abstract":"Induction motor loads form an integral part of any electrical load network and possess a unique characteristic. The high reactive power drawn from the system by motor during start up causes voltage drop which may affect other loads in the network. This drop is more pronounced in a weak microgrid, which do not have the capability to quickly compensate the drop. The only way to determine voltage drop due to starting current or vice-versa is simulation studies. The initial work is aimed at filling this gap by providing a methodology to determine a relationship between the starting current and the voltage drop as a function of short circuit current values at that point. The impact of motor starting on the voltage profile is studied for a standard network. Subsequently, a control methodology is proposed for an inverter based source to improve the power quality during motor starting. The methodology makes use of the existing infrastructure with limited additional investments, if any to cater to reactive power requirements during motor starting. For study, a network energized by inverter interfaced photovoltaic array and a generator is considered. The studies have been performed based on computer simulation carried out using PSCAD™/EMTDC™ software package.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"2 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114092632","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: 4

A nine level inverter based grid connected solar PV system with voltage boosting 一种基于电压升压的九电平逆变器并网太阳能光伏系统

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042154

P. Chamarthi, V. Agarwal

引用次数: 4

Adaptive Sliding Mode Controller with modified sliding function for DC-DC Boost Converter 基于改进滑动函数的DC-DC升压变换器自适应滑模控制器

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042009

A. Mehta, B. Naik

引用次数: 11

Comparative analysis of quasi Z-source inverter and active bidirectional converter for hybrid electric vehicle application 准z源逆变器与有源双向变换器在混合动力汽车中的应用对比分析

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7041956

Vikram Roy Chowdhury, B. Saritha

引用次数: 4

Three Level Hysteresis Current Controlled VSI for power injection and conditioning in grid connected solar PV systems 并网太阳能光伏发电系统的三电平滞后电流控制VSI

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI: 10.1109/PEDES.2014.7042033

O. Varaprasad, D. Kumar, D. Sarma

{"title":"Three Level Hysteresis Current Controlled VSI for power injection and conditioning in grid connected solar PV systems","authors":"O. Varaprasad, D. Kumar, D. Sarma","doi":"10.1109/PEDES.2014.7042033","DOIUrl":"https://doi.org/10.1109/PEDES.2014.7042033","url":null,"abstract":"The penetration of solar Photo Voltaic (PV) systems to the grid is gradually being increased as an alternative to conventional energy sources. The interfacing of solar PV systems to the grid requires efficient control strategies for the operation, control and Power Quality (PQ) improvement. This paper proposes a three-level Hysteresis Current Control (HCC) strategy for grid connected four leg Voltage Source Inverter (VSI). The main objective of three-level HCC for VSI is to perform solar power injection as well as power conditioning such as compensation of harmonics, reactive power, neutral current and current imbalance. Conventional HCC suffers from variation in switching frequency, whereas the three-level HCC exhibits a considerable reduction in switching frequency variation by considering offset hysteresis band, thus enhances the control performance. Here a three phase four wire supply system connected to both linear and nonlinear unbalanced loads are considered. The efficacy of the proposed control concept is demonstrated with different operating conditions using MATLAB/Simulink© simulation studies.","PeriodicalId":124701,"journal":{"name":"2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"22 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":"131641042","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: 9