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2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)最新文献

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Dynamic Stochastic EPEC Model for Competition of Dominant Producers in Generation Expansion Planning 发电扩展规划中优势厂商竞争的动态随机EPEC模型
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617107
J. Valinejad, M. Marzband, T. Barforoshi, J. Kyyrä, E. Pouresmaeil
{"title":"Dynamic Stochastic EPEC Model for Competition of Dominant Producers in Generation Expansion Planning","authors":"J. Valinejad, M. Marzband, T. Barforoshi, J. Kyyrä, E. Pouresmaeil","doi":"10.1109/EFEA.2018.8617107","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617107","url":null,"abstract":"This paper aims to presents dynamic stochastic an equilibrium problem with equilibrium constraints (DSEPEC) model to invistigate the generation capacity expansion at a certain time horizon and the presence of dominant producers. The DSEPEC model is proposed while there is an uncertainty in the predicted demand, and it is modeled based on discrete Markov model. Each dominant producer is modeled by a bi-level optimization problem so that the first level and the second level provide models for the investment and operation decisions, respectively. The supply function equilibrium (SFE) is used for short-term electricity market. Then, each bi-level model is convert to dynamic stochastic mathemathical problem with equilibrium constraints (DSMPEC). To convert DSEPEC to an auxiliary MILP problem, Karush-Kuhn-Tucker (KKT) conditions as well as primal-dual transformation. A sample two-buses power network is employed for simulation and necessary analysis to confirm the efficiency of the proposed framework.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114661762","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
Assessment of a Mechanical Pretreatment to Enhance Biogas Production from the Noxious Weed Eichhornia Crassipes on Industrial Scale 工业规模下机械预处理提高有毒杂草棘草沼气产量的研究
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617059
P. Dell'Omo, V. Spena, Sabatino La Froscia
{"title":"Assessment of a Mechanical Pretreatment to Enhance Biogas Production from the Noxious Weed Eichhornia Crassipes on Industrial Scale","authors":"P. Dell'Omo, V. Spena, Sabatino La Froscia","doi":"10.1109/EFEA.2018.8617059","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617059","url":null,"abstract":"The effects of a mechanical pretreatment were determined on the methane yield of water hyacinth. The feedstock was pretreated using a two stages dry milling process and the experiments were performed at a mass flow rate of about 750 kg h−1. Untreated and pretreated materials were both anaerobically digested in batch reactors under mesophilic conditions for 28 days. The cumulative biogas production from pretreated hyacinth exceeded 141.8 Nm3 tr−1 of volatile solids, showing a +44.5% gain compared to the raw material. Such a gain resulted above the known range for size reduction pretreatments and the energy consumption for treatment was only 14.5% of the electric energy output from the processed materials. The net primary energy output from pretreated hyacinth was enhanced by 28.7% respect the untreated feedstock, showing that the investigated pretreatment might be successfully used to improve anaerobic digestion of water hyacinth on an industrial scale.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115197654","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
An Overview of Wave Energy Technologies in the Mauritian Context 波浪能源技术在毛里求斯的概述
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617087
D. Mawooa, L. Latchoomun, R. G. Kaully, K. Busawon
{"title":"An Overview of Wave Energy Technologies in the Mauritian Context","authors":"D. Mawooa, L. Latchoomun, R. G. Kaully, K. Busawon","doi":"10.1109/EFEA.2018.8617087","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617087","url":null,"abstract":"Small Island developing states like Mauritius are very vulnerable to climate change as well as to fluctuating fossil fuels prices in the international market. Mauritius is targeting 35% mixed renewable energy generation by 2025. This work will focus on different types of wave energy converter (WEC) that can be used to supplement the existing local electrical energy grid. The key dimensions of a WEC are analyzed with respect to their ocean environment, namely, shore, nearshore and offshore and coupled to their working principles. Furthermore, the pros and cons of such devices are considered and much efforts have also been made to summarize the current status and future potentials of wave as an alternative renewable energy option for Mauritius.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"526 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116219889","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
Sensorless Flux Observer-Based Fault Detection of Induction Machines 基于无传感器磁链观测器的感应电机故障检测
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617075
J. M. Masala, K. Busawon, M. Jovanović, R. Binns
{"title":"Sensorless Flux Observer-Based Fault Detection of Induction Machines","authors":"J. M. Masala, K. Busawon, M. Jovanović, R. Binns","doi":"10.1109/EFEA.2018.8617075","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617075","url":null,"abstract":"In this paper, we introduce a strategy for the design of a sensorless flux observer-based fault detection system for use with induction motors. To synthesise the flux observer for this machine, we use a third order model for induction machines expressed in term of complex differential equations. Since the equation of the rotor speed of the induction motor is complicated to analyse, we replace it by its behavioural model for the design of the flux observer. Moreover, we use the synthesised observer in order to investigate the effects of two common types of faults (i.e. voltage sag and the stator inter-turn short-circuit) that can occur in these machines. The validity of the proposed methodology is assessed via simulation results using a model of the induction motor.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115447041","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
Role of Virtual Power Plants in Capacity Markets 虚拟电厂在容量市场中的作用
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617062
Ankur Majumdar, S. Khadem
{"title":"Role of Virtual Power Plants in Capacity Markets","authors":"Ankur Majumdar, S. Khadem","doi":"10.1109/EFEA.2018.8617062","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617062","url":null,"abstract":"The steady increase of renewable penetration has brought down the price of the wholesale electricity market. However, due to the intermittent nature of the renewables, the conventional generations are required to maintain flexibility in times of scarcity. In order to resolve this reliability problem, the independent system operator (ISO) plans in advance to facilitate building new capacity in long-term through capacity markets. The flexible conventional generations lack incentives to maintain operation and build new generations due to low revenue from the energy and ancillary services markets. This paper proposes an idea to incorporate renewable generations in the capacity markets within the virtual power plant model as capacity market units. The proposed idea increases the flexibility of renewable generation output with and/or without energy storage systems. Therefore, it will be particularly beneficial for ISO to increase the renewable capacity in the generation mix.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123314350","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
Deterministic Approach for Generation and Transmission Expansion Planning 发电和输电扩展规划的确定性方法
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617109
C. Sima, G. Lazaroiu, V. Dumbrava, G. Lazaroiu, C. Panait, M. Roscia
{"title":"Deterministic Approach for Generation and Transmission Expansion Planning","authors":"C. Sima, G. Lazaroiu, V. Dumbrava, G. Lazaroiu, C. Panait, M. Roscia","doi":"10.1109/EFEA.2018.8617109","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617109","url":null,"abstract":"In this paper, the Generation and Transmission Expansion Planning (G&TEP) problem, considering two case studies, is analyzed. In the first case, the GEP and TEP problems are considered separately, while in the second GEP and TEP problems are solved together, thus G&TEP problem appears. The objective function of the mixed-integer linear programming (MILP) problem is minimizing the expected generation costs, load-shedding costs and investment costs. The planner can modify the presented mathematical model in order to satisfy any other system requirements considering G&TEP problem. The approach presented in this paper is a deterministic static one. The investment decision is considered to be made at the beginning of the planning horizon.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123427760","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
Plannable Demand Load in Size Optimisation of Hybrid Renewable Energy Systems 混合可再生能源系统规模优化中的可规划需求负荷
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617048
A. Maheri, Abdihakim Bokah
{"title":"Plannable Demand Load in Size Optimisation of Hybrid Renewable Energy Systems","authors":"A. Maheri, Abdihakim Bokah","doi":"10.1109/EFEA.2018.8617048","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617048","url":null,"abstract":"Size optimisation of hybrid renewable energy systems (HRES) is aimed at finding a solution which supplies a reliable power with minimum cost for a predefined demand load. In industrial applications, the demand load is mainly due to the operation of machines. In many cases there is some level of flexibility in the scheduling of the operation of machines. In other words, the demand load can have different forms. This is in contrary to the common practice in which the demand load is assumed to have a fixed profile. This paper presents the results of a preliminary study on the effect of including the flexibility in load scheduling in size optimization of HRES.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123613931","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
Some Remarks on Bottom-Up Methodology for Energy Efficiency Action Plans 关于能源效益行动计划自下而上方法的几点意见
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617091
M. Stamenić, Djordje S. Čantrak, Novica Z. Janković, M. Lečić
{"title":"Some Remarks on Bottom-Up Methodology for Energy Efficiency Action Plans","authors":"M. Stamenić, Djordje S. Čantrak, Novica Z. Janković, M. Lečić","doi":"10.1109/EFEA.2018.8617091","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617091","url":null,"abstract":"Energy efficiency is one of the key elements of European Union (EU) energy policy. It contributes all key objectives of the EU energy policy, like safety in energy supply, cut down of energy import of EU countries, reduction of the carbon dioxide and other GHG gases, increasing the renewable energy sources share in primary energy consumption. European Commission (EC) presented in December 2003 directives of the European Parliament and Council for the end users. The paper presents a bottom-up methodology for energy efficiency improvements in building sector in Serbia. This methodology is based on the harmonized bottom-up method, reffering to four stages calculation. It is defined in the project “Evaluation and monitoring for the EU directive on energy end-use efficiency and energy services” with a set of calculations and case applications. According to the National Energy Efficiency Action Plan (NEEAP) total indicative target for Republic of Serbia for the period between 2010 and 2018 is 9% of the average final energy consumption (0.7524 Mtoe) where the baseline for calculations is 2008.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123948390","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
Selective Harmonic Elimination in a 5-Level Single Phase Converter with FPGA Based Controller 基于FPGA控制器的5电平单相变换器的选择性谐波消除
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617082
V. Castiglia, R. Miceli, G. Schettino, M. G. Cimoroni, C. Buccella, Carlo Cecati
{"title":"Selective Harmonic Elimination in a 5-Level Single Phase Converter with FPGA Based Controller","authors":"V. Castiglia, R. Miceli, G. Schettino, M. G. Cimoroni, C. Buccella, Carlo Cecati","doi":"10.1109/EFEA.2018.8617082","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617082","url":null,"abstract":"Multilevel converters are becoming popular in high-power applications such as motor drives, renewable energy systems and distribution systems. Among all modulation techniques, selective harmonic elimination methods offer high quality voltage waveforms with operations at low switching frequency, hence, they are especially suitable for high-power applications. In this paper, a new analytical expression for the SHE problem formulated for a five-level converter is introduced, which is able to calculate the exact value of the switching angles. After a mathematical description of the proposed approach, this manuscript reports simulation and experimental results and analysis showing achievable results.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124070859","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
Model Predictive-Based Direct Battery Control in PV Fed Quasi Z-Source Inverters 基于模型预测的光伏准z源逆变器电池直接控制
2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA) Pub Date : 2018-09-01 DOI: 10.1109/EFEA.2018.8617084
Abderezak Lashab, D. Sera, João Martins, J. Guerrero
{"title":"Model Predictive-Based Direct Battery Control in PV Fed Quasi Z-Source Inverters","authors":"Abderezak Lashab, D. Sera, João Martins, J. Guerrero","doi":"10.1109/EFEA.2018.8617084","DOIUrl":"https://doi.org/10.1109/EFEA.2018.8617084","url":null,"abstract":"A model predictive-based control strategy for the quasi-Z-source inverter (qZSI) with battery for photovoltaic (PV) power conversion system is proposed in this paper. Usually, in the control of the battery-assisted qZSI, only the injected power to the grid and the maximum power point tracking of the PV are controlled. The battery charges, discharges, or floats depending on the available PV power and demanded power. Thus, a low-frequency current ripple is generated on top of the ripple caused by the shoot through state in the second inductor L2 and the battery. In the proposed approach, the battery current is directly controlled. The power injection is fulfilled with the maximum power capture from PV panels, along with a decoupled active and reactive power control. The validity of the proposed method is proved by using a detailed simulation model, showing a no low-frequency current ripple in both the inductor L2 and battery.","PeriodicalId":447143,"journal":{"name":"2018 5th International Symposium on Environment-Friendly Energies and Applications (EFEA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128447388","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: 12
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