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2012 10th International Power & Energy Conference (IPEC)最新文献

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Autonomous appliance scheduling based on time of use probabilities and load clustering 基于时间使用概率和负荷聚类的自主设备调度
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523236
C. Adika, Lingfeng Wang
{"title":"Autonomous appliance scheduling based on time of use probabilities and load clustering","authors":"C. Adika, Lingfeng Wang","doi":"10.1109/ASSCC.2012.6523236","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523236","url":null,"abstract":"The ultimate smart grid will operate autonomously by implementing intelligent decision-making schemes with as little consumer intervention as possible. Its success will be heavily reliant on accurate real-time information exchange between the grid and the consumers. Customers will be expected to submit energy demand schedules to actively monitor energy price signals and participate in energy bids and respond to energy management signals in real time. This kind of smart grid-user interaction will be overwhelming and can result in consumer apathy. There is therefore a need to develop intelligent systems that will execute all these tasks without the active involvement of the consumer. This paper proposes such an approach. Demand response scheme by smart scheduling of household electrical appliances is presented. The scheduler calculates individual device hourly probabilities that it uses to automatically generate optimal schedules. An optimal schedule is considered to be the one that meets the consumer's deadlines while ensuring energy cost savings to the customer.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125001689","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
The influence of cable capacitance, generator neutral grounding and zig-zag transformer to third harmonic produced by synchronous generator 电缆电容、发电机中性点接地和锯齿形变压器对同步发电机产生三次谐波的影响
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523297
M. Abdullah, N. H. Hamid, Z. Baharudin, M. A. Razak, M. Hisham
{"title":"The influence of cable capacitance, generator neutral grounding and zig-zag transformer to third harmonic produced by synchronous generator","authors":"M. Abdullah, N. H. Hamid, Z. Baharudin, M. A. Razak, M. Hisham","doi":"10.1109/ASSCC.2012.6523297","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523297","url":null,"abstract":"Salient pole synchronous generator is one of harmonic sources that causes various power system harmonic problem especially related to neutral. This paper aims to study the characteristics of third harmonic voltage and current from generator when connected to balanced load via cable, generator load connection with different generator neutral grounding resistor and generator load connection shunted by zig-zag transformer. Lab scale experiments have been conducted to vary all parameters related to cable capacitor and generator neutral grounding resistor under various combined resistive and inductive load. Cable capacitance which depends on cable length, size and number of parallel cable, combined with load impedance determines the third harmonic current magnitude. The presence of cable capacitance that interact with generator inductance resulted to series harmonic resonance at 9th and 15th harmonic order that causes high 9th and 15th harmonic current flowing between generator and cable capacitor. Generator neutral grounding resistor can effectively reduce the third harmonic in the phase and neutral. However care should be taken not to use very high generator neutral grounding resistor that can also restrict earth fault current that may pose problem to the sensitivity of earth fault protection system. Zig-zag transformer efficiently divert third harmonic current from generator to enter the load but high circulating third harmonic current between generator and zig-zag transformer may pose heating problem to the equipments.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124356828","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
Design of purchasing costs analysis system for grid companies 电网公司采购成本分析系统的设计
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523281
Yanmin Guo, Ping Shao, Junhong Guo, JingPeng Cai
{"title":"Design of purchasing costs analysis system for grid companies","authors":"Yanmin Guo, Ping Shao, Junhong Guo, JingPeng Cai","doi":"10.1109/ASSCC.2012.6523281","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523281","url":null,"abstract":"In order to master the structure of electric purchasing costs, plenty of purchasing data stored in the database of Power Market Operation System are analyzed, which distributed in all kinds of applications originally. Conventional stat method, factor analysis method and marginal analysis method are used to analyze and exploit historical data. On this basis, Web pages are designed to show analysis results with multi-dimensions, multi-caliber and multi-time accumulative type. According to flexible Combination of table, curve, pie chart and bar chart, pages will explain the structure of purchasing costs, the factors that affect the total cost and the average price and the marginal income of the transaction from different angles. All of these provide the conditions for the further optimizing purchasing costs of power grid companies.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126255511","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: 0
Dynamic study of a battery change-over scheme of a windfarm containing dual BESS 双BESS风电场电池转换方案的动力学研究
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523268
D. Yao, S. S. Choi, K. Tseng, T. Lie
{"title":"Dynamic study of a battery change-over scheme of a windfarm containing dual BESS","authors":"D. Yao, S. S. Choi, K. Tseng, T. Lie","doi":"10.1109/ASSCC.2012.6523268","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523268","url":null,"abstract":"The wind farm-dual-battery energy storage systems (BESS) described in [1] is studied in greater detail for those instances when the battery banks change-over. The primary design objective of the wind farm-BESS scheme is to realize the dispatchability of wind generation. The scheme requires two BESS modules to inter-change between charging-discharging modes. A new power flows control strategy is designed to cater for the battery switching-over operation while practical constraints on the charging-discharging of the BESS are considered. A dynamic study is included to illustrate the strategy.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115829572","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: 7
Policies and initiatives for carbon neutrality in nordic heating and transport systems 北欧供暖和运输系统碳中和的政策和倡议
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523234
J. Møller, Qiuwei Wu, J. Østergaard, A. Nielsen, Yi Ding
{"title":"Policies and initiatives for carbon neutrality in nordic heating and transport systems","authors":"J. Møller, Qiuwei Wu, J. Østergaard, A. Nielsen, Yi Ding","doi":"10.1109/ASSCC.2012.6523234","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523234","url":null,"abstract":"Policies and initiatives promoting carbon neutrality in the Nordic heating and transport systems are presented. The focus within heating systems is the propagation of heat pumps while the focus within transport systems is initiatives regarding electric vehicles (EVs). It is found that conversion to heat pumps in the Nordic region rely on both private economic and national economic incentives. Initiatives toward carbon neutrality in the transport system are mostly concentrated on research, development and demonstration for deployment of a large number of EVs. All Nordic countries have plans for the future heating and transport systems with the ambition of realizing carbon neutrality.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131768198","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
Relationship between generator affinity and voltage profile improvement 发电机亲和力与电压分布改善的关系
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523310
T. Sikiru, A. Jimoh, Y. Hamam, J. Agee, R. Ceschi
{"title":"Relationship between generator affinity and voltage profile improvement","authors":"T. Sikiru, A. Jimoh, Y. Hamam, J. Agee, R. Ceschi","doi":"10.1109/ASSCC.2012.6523310","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523310","url":null,"abstract":"This paper demonstrates the relationship between generator affinity and voltage profile improvement. Circuit theory and the partitioned Y-admittance matrix were used to derive the generator affinity for power system networks. Results show that the lowest voltages occur at buses without generator affinity. Locating generators (pseudo generators) such that buses are within generators affinities significantly improves the overall voltage profile.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133459601","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
An adaptive emergency control method for interconnected power grids against frequency decline and system blackout 一种针对频率下降和系统停电的互联电网自适应应急控制方法
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523308
Ansi Wang, Yong Tang, Huadong Sun, Wei Wu, Jun Yi
{"title":"An adaptive emergency control method for interconnected power grids against frequency decline and system blackout","authors":"Ansi Wang, Yong Tang, Huadong Sun, Wei Wu, Jun Yi","doi":"10.1109/ASSCC.2012.6523308","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523308","url":null,"abstract":"The occurrence of a large disturbance in a power system can lead to a decline in the system frequency due to a real power deficiency or generation-load imbalance. The emergency control action is required to stop the system degradation immediately and minimize the impact to the system. In this paper, an adaptive emergency control method is proposed to prevent the system excess frequency decline and even the large blackout. It consists of two main stages. In the first stage, the real-time triggering criterion deciding whether to trigger the adaptive control is presented by predicting the frequency excursion. The second stage aims to designing an optimal emergency control strategy, which eliminates the imbalance power whilst minimizing the control cost. The strategy cannot be limited by the traditional offline control strategy table. The effectiveness of the proposed emergency control method is demonstrated via numerical example on the inter-connected power grid of the North Grid of China and the Central Grid of China. The proposed method can be executed in a simple and efficient way because the complex transient time-domain simulations of large-scale power system can be avoided.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114541633","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: 7
Modeling the consumer of the future — A dynamic simulation approach 为未来的消费者建模——一种动态仿真方法
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523276
L. Pinto, J. Szczupak, R. Semolini, R. Mandredini, R. Massaro
{"title":"Modeling the consumer of the future — A dynamic simulation approach","authors":"L. Pinto, J. Szczupak, R. Semolini, R. Mandredini, R. Massaro","doi":"10.1109/ASSCC.2012.6523276","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523276","url":null,"abstract":"Consumer behavior is usually modeled by past dynamics, extracted from historical records. This paper proposes a new paradigm: the model of the consumer of the future, subject to patterns, choices, technology and possibilities never ever experienced - and therefore not obtainable from the past. Furthermore, we present a new model, based on dynamic simulation techniques, able to capture the future evolutions and consumer's reactions. A case study with the Brazilian pre-salt oil exploitation, its impacts on country's economy - and, therefore, on energy consumption patterns - illustrates the potentiality of the described concepts and models.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124290069","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: 0
Control of a 3-phase 4 wire grid connected converter with active power filter and var compensation functionality for nonlinear loads 具有有源滤波和无功补偿功能的三相四线电网连接变流器的非线性负载控制
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523303
Sakda Prommeuan, V. Kinnares, C. Charumit
{"title":"Control of a 3-phase 4 wire grid connected converter with active power filter and var compensation functionality for nonlinear loads","authors":"Sakda Prommeuan, V. Kinnares, C. Charumit","doi":"10.1109/ASSCC.2012.6523303","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523303","url":null,"abstract":"This paper presents control of real power and reactive power together with active filter functionality of a grid connected voltage source converter for 3-phase, 4 wire system in order to eliminate harmonic currents associated with non-linear load in each phase. A classical instantaneous real and reactive power control method is used together with a harmonic elimination technique. A three-phase voltage source converter is used to control the reference current based on fixed hysteresis band current control. The active and reactive power are independently controlled whilst the grid current is compensated to be nearly sinusoidal waveform. The simulation results verify the correctness of operation for the proposed functions using MATLAB/Simulink.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122858368","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
Investigation of VRB-ESS integrated with hybrid power system for building VRB-ESS与建筑混合动力系统集成的研究
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523313
Wynn Chen, Jiyun Zhao
{"title":"Investigation of VRB-ESS integrated with hybrid power system for building","authors":"Wynn Chen, Jiyun Zhao","doi":"10.1109/ASSCC.2012.6523313","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523313","url":null,"abstract":"Beneficial in terms of improved reliability, energy services, operational life and energy efficiency, VRB-ESS and its integrated power system have brought forth the highest form of perfection in generation and distribution. This paper analyzes the interaction among components of hybrid power system (HPS), as well as the relative size of the components that is used efficiently at an optimum rate. Using developed Microsoft excel methodology, the different HPSs have been simulated for the building load profile and aim to optimize the averaged unit energy cost - US$ per kWh for each configuration of HPS.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129271596","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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