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Design of a temperature-insensitive digitally-controlled oscillator for on-chip reference clock 片上参考时钟温度不敏感数字控制振荡器的设计
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349928
Chih-Taoy Jung, Yingchieh Ho
{"title":"Design of a temperature-insensitive digitally-controlled oscillator for on-chip reference clock","authors":"Chih-Taoy Jung, Yingchieh Ho","doi":"10.1109/IESES.2018.8349928","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349928","url":null,"abstract":"This paper presents a 0.4V temperature-insensitive digitally-controlled ring oscillator (DCO) for on-chip reference clock circuit. Based on a modified bootstrapped ring oscillator (BTRO), temperature variation can be further decreased without calibration, where BTRO is operated at near-threshold voltage. A binary-weighted tree-controlled resistor network (BWTRN) is performed to achieve an 8bit high-linearity DCO with BTRO. The proposed DCO is fabricated in TSMC 90 nm CMOS process with a core area of 0.013 mm2. The simulation results in typical corner demonstrate that the DCO oscillates max/min frequency of 105.6MHz/60.7MHz at 0.4 V Vdd and consumes 8.77μW/4.44μW. The maximum temperature variation of the single code is 329 ppm, and its maximum DNL variation is 0.67 LSB. Even for all process corners, the maximum temperature variation among all control codes is 8%.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130914472","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
Analysis of electric vehicle stability effectiveness on wheel force with BLDC motor drive 无刷直流电机驱动下电动汽车轮力稳定性效果分析
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349873
R. Behera, Rustam Kumar, Srirama Murthy Bellala, P. Raviteja
{"title":"Analysis of electric vehicle stability effectiveness on wheel force with BLDC motor drive","authors":"R. Behera, Rustam Kumar, Srirama Murthy Bellala, P. Raviteja","doi":"10.1109/IESES.2018.8349873","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349873","url":null,"abstract":"The focus of this paper is to develop effective control strategies to improve driving dynamics and slope of the road based on the mechanical dynamic study. The proposed control strategy stabilizes the wheels forces through control of brushless DC motor drive (BLDC). For stabilizing the 3 wheeler and structural advantages that BLDC motors are connected directly to the tires. The proposed system is studied analytically and a laboratory prototype is built to verify the effectiveness of the proposed control system. Few typical simulation and experimental results are presented.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114793333","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
Battery storage system with active filtering function based on the conservative power theory for wind generators 基于保守功率理论的风力发电机有源滤波蓄电池储能系统
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349844
Tiago Davi Curi Buasarello, J. Pomilio
{"title":"Battery storage system with active filtering function based on the conservative power theory for wind generators","authors":"Tiago Davi Curi Buasarello, J. Pomilio","doi":"10.1109/IESES.2018.8349844","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349844","url":null,"abstract":"This paper presents a three-phase Battery Storage System (BSS) with active filtering function. The primary function of the BSS is to compensate power fluctuation from a Wind Generator (WG) system. The BSS activates the active filter function in specific moments during its operation. The BSS decision-algorithm and the control strategy are described. The Conservative Power Theory (CPT) is used to compute the active output power of the BSS and the WG System. The WG is connected to a 12.4 kV grid (phase-to-ground) while the BSS is connected to this grid through a 60Hz-transformer. The active filtering function is limited to mitigate the 5th and 7th harmonics from nonlinear loads to avoid large increasing on the RMS current of the BSS transformer. The BSS can perform its primary function simultaneously with active filtering. Simulation results show the efficacy of the BSS to operate in combination to a WG system.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117123836","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: 5
Assessment of cost of unserved energy for Sri Lankan industrial sector 斯里兰卡工业部门未使用能源的成本评估
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349885
D. P. Colambage, H. Y. Ranjit Perera
{"title":"Assessment of cost of unserved energy for Sri Lankan industrial sector","authors":"D. P. Colambage, H. Y. Ranjit Perera","doi":"10.1109/IESES.2018.8349885","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349885","url":null,"abstract":"The main function of a power system is to supply electricity to its customers at an adequate level of reliability and quality. Adequate level is the level of reliability and quality agreed upon by the stakeholders balancing the needs and costs of supply. Economic development of a country requires reduced frequency and duration of outages of supply and such improvements support the development in return. If such improvements are made, even a higher tariff is likely to be accepted by the customers. The Cost of Unserved Energy is one of the key economic evaluation parameters for deciding the required level of reliability of the power system. The need for an up to date study on this scope is strongly felt. This research presents the outcomes of a study for Assessment of Cost of Unserved Energy for Sri Lanka. The study is based on consumer survey method. The analysis has been done into three separate categories of electricity consumers as Industry, Commercial and Domestic. This research paper presents the results of Industry sector. Industry category is subdivided and results are presented separately for momentary, planned and unplanned electricity interruptions. It is expected that the results of this study helps the power sector to provide a better service, taking into consideration, the views of the customers and the national importance of electricity as an esential ingredient for economic growth.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128342624","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: 1
Current-type Power Hardware in the Loop (PHIL) evaluation for smart transformer application 智能变压器应用的电流型电力硬件在环(PHIL)评估
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349933
Giovanni de Carne, G. Buticchi, Marco Liserre
{"title":"Current-type Power Hardware in the Loop (PHIL) evaluation for smart transformer application","authors":"Giovanni de Carne, G. Buticchi, Marco Liserre","doi":"10.1109/IESES.2018.8349933","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349933","url":null,"abstract":"The development of power electronics and power systems due to the massive integration of renewable energy sources is challenging the distribution grids. Among several concepts, the Smart Transformer (ST), a solid-state transformer with advanced control and communication capabilities, has been investigated by several researchers. A great challenge of this kind of system is the possibility to test the effectiveness of the physical system under a broad spectrum of operating conditions. For this reason, the Power Hardware in the Loop (PHIL) concept can be adopted to emulate the behavior of a distribution grid connected to the ST. In this case, because the low-voltage stage of the ST is voltage controlled, the test setup must be current-controlled. In this paper, the current-controlled PHIL setup is analyzed. The theorethical analysis is carried out and preliminary results obtained with the PHIL facilities are presented, highlighting how the current-controlled PHIL can be an effective means to study the ST.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128295652","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: 6
DFIG wind turbine grid connected for frequency and amplitude control in a smart grid 在智能电网中，DFIG风力发电机组并网进行频率和幅度控制
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349903
J. Cortajarena, J. De Marcos, P. Alkorta, O. Barambones, J. Cortajarena
{"title":"DFIG wind turbine grid connected for frequency and amplitude control in a smart grid","authors":"J. Cortajarena, J. De Marcos, P. Alkorta, O. Barambones, J. Cortajarena","doi":"10.1109/IESES.2018.8349903","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349903","url":null,"abstract":"Power generated from wind is a fast growing renewable source of the world energy consumption. A double feed induction generator (DFIG) used in wind turbines, provides dynamic and static active and reactive power support. In this paper, the droop control technique is used to regulate the grid amplitude and frequency according to the criteria defined for the smart grid supervisor. Wind turbine will operate in an unloaded maximum power curve, and according to the reserved active power to correct the frequency deviation, the limit of the reactive power or voltage amplitude correction will be explained. In addition, the offset adjustment of the encoder and the stator synchronization and connection to the grid will be explained. The connection process to the grid and the regulation of a real 7.5kW DFIG is performed controlling the active and reactive powers to their reference values. For that, a platform based on a real-time interface with the DS1103 board is used.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127519164","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: 8
Efficiency analysis of a 7.7 kW inductive wireless power transfer system with parallel displacement 7.7 kW并联感应无线电力传输系统效率分析
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349911
D. Vincent, Soma Chakraborty, P. Huynh, S. Williamson
{"title":"Efficiency analysis of a 7.7 kW inductive wireless power transfer system with parallel displacement","authors":"D. Vincent, Soma Chakraborty, P. Huynh, S. Williamson","doi":"10.1109/IESES.2018.8349911","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349911","url":null,"abstract":"This paper provides an efficiency model of a 7.7 kW inductive wireless charging system based on the variations in transmitting and receiving coil alignment. The design and selection of electrical and geometrical parameters for the proposed model have been outlined. The 490 mm diameter magnetic couplers were simulated at an air gap of 165 mm. The system achieved 97% coupler-coupler efficiency under ideal conditions and zero misalignment. The performance of proposed couplers were investigated for 45 mm, 90 mm, 180 mm and 250 mm horizontal displacement in 3D finite element analysis. This model operates at a switching frequency of 85 kHz and employs a single capacitor series-parallel resonant compensation to minimize the VA rating of the supply and to maximize the power transfer capability. The prototype follows the SAE J2954 specification for a level 2 wireless power transfer system.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132135523","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
Discovering the structure of cascade propagation in power grids 发现电网中串级传播的结构
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349887
R. Ghanbari, M. Jalili, Xinghuo Yu
{"title":"Discovering the structure of cascade propagation in power grids","authors":"R. Ghanbari, M. Jalili, Xinghuo Yu","doi":"10.1109/IESES.2018.8349887","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349887","url":null,"abstract":"Power systems are often prone to cascade failures, i.e. rapid propagation of failures that start from a set of nodes. Discovery of the pathway that cascade goes through in power systems will give the network planners a realistic insight to predict the extension route of cascade and deter it from expansion before it leads to a catastrophic blackout. In this manuscript we study the mechanism of cascade failures' propagation in power systems. A complex network model is applied to represent power systems where bus bars (generator, loads and transformers) can be considered as nodes and the transmission lines as links connecting these nodes. As benchmark networks we consider IEEE 57 and 118 bus test networks. A maximum flow based model is used to find the central edges. We study the way a cascade is propagated in a power system. We find that at initial steps, the cascade gets propagated locally, but as the cascade proceeds through the network, its pattern changes to a global expansion.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121760737","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: 1
Cloud motion tracking system using low-cost sky imager for PV power ramp-rate control 基于低成本天空成像仪的云运动跟踪系统用于光伏发电斜坡率控制
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349927
Can Zhang, Yang Du, Xiaoyang Chen, D. Lu
{"title":"Cloud motion tracking system using low-cost sky imager for PV power ramp-rate control","authors":"Can Zhang, Yang Du, Xiaoyang Chen, D. Lu","doi":"10.1109/IESES.2018.8349927","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349927","url":null,"abstract":"Passing cloud results in rapid changes in solar irradiance. The intermittency of PV power output has drawn serious concern as the PV system installation increases significantly. Consequently, power ramp-rate control (PRRC) is introduced as the regulation to avoid significant power fluctuations. These requirements are driving an increasing demand for short-term PV power forecasting. Sky imager has been used as an effective tool to predict the cloud motion, then to forecast the PV power. However, the high cost of sky imager system and long image processing delay are still hindering its application in PRRC. In this paper, a low-cost cloud motion tracking system has been designed and developed. Ultra short-term cloud motion forecasting has been achieved in sub-minute level which can be used in PRRC application. The proposed method improves the forecasting accuracy by multiple cloud centroids tracking. The effectiveness of the proposed method has been verified by the practical experiment results.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133448000","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: 14
A new UPS topology for multi-megawatt medium voltage power protection 用于多兆瓦中压电源保护的新型UPS拓扑结构
2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES) Pub Date : 1900-01-01 DOI: 10.1109/IESES.2018.8349882
R. Turner, N. Elliott
{"title":"A new UPS topology for multi-megawatt medium voltage power protection","authors":"R. Turner, N. Elliott","doi":"10.1109/IESES.2018.8349882","DOIUrl":"https://doi.org/10.1109/IESES.2018.8349882","url":null,"abstract":"The footprint and electrical power needed to protect and run a large critical power facility has increased over the past decade. The established technologies are expensive and inefficient and facility owners are looking for a new approach. One solution is to push the power protection up the network to medium voltage (MV). Today this can be done with Diesel rotary Uninterruptible Power Supply (DRUPS), but a new unique approach is to apply a static UPS at MV in a highly efficient new UPS topology. This paper presents ABB's new “ZISC” architecture and the PCS120 MV UPS product.","PeriodicalId":146951,"journal":{"name":"2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134443074","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: 1
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