B. Hongpeechar, W. Krueasuk, A. Poungching-ngam, P. Bhasaputra, W. Pattaraprakorn
{"title":"Feasibility study of micro hydro power plant for rural electrification in Thailand by using axial flux permanent magnet","authors":"B. Hongpeechar, W. Krueasuk, A. Poungching-ngam, P. Bhasaputra, W. Pattaraprakorn","doi":"10.1109/ICUEPES.2011.6497732","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497732","url":null,"abstract":"This paper presents the study to investigate the possibility of the stand-alone micro hydro for low-cost electricity production which can satisfy the energy load requirements of a typical remote and isolated rural area. In this framework, the feasibility study in term of the technical and economical performances of the micro hydro system are determined according to the rural electrification concept. The proposed axial flux permanent magnet (AFPM) generator will be designed for micro hydro under sustainable development to optimize between cost and efficiency by using the local materials and basic engineering knowledge. First of all, the simple simulation of micro hydro model for lighting system is developed by considering the optimal size of AFPM generator. The simulation results show that the optimal micro hydro power plant with 70 W can supply the 9 W compact fluorescent up to 20 set for 8 hours by using pressure of water with 6 meters and 0.141 m3/min of flow rate. Lastly, a proposed micro hydro power plant can supply lighting system for rural electrification up to 525.6 kWh/year or 1,839.60 Baht/year and reduce 0.33 ton/year of CO2 emission.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124743234","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}
{"title":"Production of thermoelectric power from the solid waste of Bhangalii Village","authors":"Mohammad Rafiq Khan, Moeez Burhan","doi":"10.1109/ICUEPES.2011.6497735","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497735","url":null,"abstract":"The work reported in this article was undertaken to study the viability of production of thermoelectric power by incineration of biomass content of Bhangalii Village solid waste. The data concerning the production and disposal of solid waste were collected from Bhangalii Village situated in Union Council No. 6, District Aziz Bhattii Shaheed Town Lahore. The primary data concerning the production of thermoelectric power from the solid waste such as bagasse were collected by visiting Pattoki Sugar Mill. The prices of machinery and equipment were also supplied by the Mill authorities, which were verified by visiting the websites of different local manufacturing companies. The data were used to design the projects subsequently appraised to determine their Benefit to Cost (B/C) Ratio, Net Present Value (NPV) and payback period (PBP). Currently Bhangalii Village consumes 1,481,528kWh of electricity per annum and it produces approximately about 800 tons per annum of solid waste. The electricity that can be produced with this weight and its composition is 247, 267 kWh/annum. The B/C ratio at this scale of production was 0.14, which is less than 1(the reference standard), NPV was-$1,026,444 (below zero) and the payback period infinite. Thus, the project is not feasible in this scenario for the Bhangalii Village. However, the project becomes feasible if the waste produced by some neighboring colonies and not by village itself disposed near the Bhangalii Village is taken into account for the projection because B/C ratio in this case becomes 1.28, NPV $401,808 and PBP1.56 years.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125697870","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}
A. Poungching-ngam, B. Hongpeechar, W. Krueasuk, K. Tirawannawit, P. Bhasaputra, W. Pattaraprakorn
{"title":"The optimal energy and environmental management criteria of used induction motor in Thailand to enhance economic value","authors":"A. Poungching-ngam, B. Hongpeechar, W. Krueasuk, K. Tirawannawit, P. Bhasaputra, W. Pattaraprakorn","doi":"10.1109/ICUEPES.2011.6497760","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497760","url":null,"abstract":"This paper presents the approach to analyze the increasing rate of electrical energy consumption for used induction motor by considering the different maintenance procedures in case of age within and over the lifetime. The sample induction motors are selected to determine the efficiency according to IEEE Standard 112-Method B which the losses of induction motors are evaluated by electrical sensor. The experiment results demonstrate that the reduction rates of performance are 1.50% per year, 2.50% per year and 1.83% per year for induction motor age within lifetime and recommended maintenance procedures, age within lifetime without recommended maintenance procedures and age over lifetime and recommended maintenance procedures, respectively. Furthermore, the declining performance rate of the induction motors age over lifetime and recommended maintenance procedures is acceptable. However the induction motor without recommended maintenance procedures has more losses than the age over lifetime induction motor by 0.67% per year. Regarding to the simulation of induction motor, the energy cost within lifetime in case of both maintenance procedure and without maintenance procedure is 18,266.96, 12,672.99 and 11,283.48 Baht/year for 24, 16 , 8hour/day, severally. In addition, the induction motor used within lifetime and recommended procedure can reduce CO2 emissions up to 3.01Tons/year. Finally, the optimal energy policy and environmental management aspect are enhancing the economic value of used induction motors in Thailand.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132312381","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}
{"title":"The influence of the applied rotor voltage on ride-through capability of doubly fed induction generator","authors":"M. Salles, A. Grilo, J. Cardoso, L. Lessa","doi":"10.1109/ICUEPES.2011.6497743","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497743","url":null,"abstract":"This paper presents a discussion about the large disturbance instability phenomenon of grid-connected doubly fed induction generators. The behavior of squirrel cage induction generator (SCIG) on large disturbance stability depends basically on the ability of the blade pitch angle control and the injection of reactive power during contingency on the network. However, the behavior of the doubly fed induction generator (DFIG) is also affected by the applied rotor voltage. The instability behavior of the SCIG is well documented in the literature, on the other hand this behavior is not well described for the case of DFIG. The analyses performed in this paper evaluate the effect of different rotor voltage applied during grid fault on the DFIG stability. A sensitive study using dynamics simulations was performed to determine the critical fault tolerance time. The results have shown that when enlarging the direct axis voltage the DFIG has better stability performance.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132372909","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}
{"title":"Multilevel grid-connected inverter performance under different modulation strategies","authors":"M. Aware, J. Mane","doi":"10.1109/ICUEPES.2011.6497741","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497741","url":null,"abstract":"In the distributed generation system, DC-DC converters and inverters are used between different sources and the loads. These inverter operation influences the power quality, stability and reliability of a given electrical network. The improvement in the performance can be achieved by using `Multilevel Inverters' in place of conventional two level inverters. In this paper, 3-level and 5-level inverters topologies are compared under different modulation strategies with two-level inverters. When inverters are connected across the DC link to convert suitable energy available from different sources in to the grid, it is essential to utilize the DC bus to its maximum. The performance indices like THD, DC bus utilization and efficiency of an inverter solely depends on its modulation strategies. This paper also investigates the different carrier based modulation techniques used for the multilevel inverters. The inverter losses can be minimized to make more efficient energy conversion by proper implementation of these control strategies.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127566995","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}
V. George, A. Bagaria, Pardeep Singh, S. Pampattiwar, S. Periwal
{"title":"Comparison of CFL and LED lamp - harmonic disturbances, economics (cost and power quality) and maximum possible loading in a power system","authors":"V. George, A. Bagaria, Pardeep Singh, S. Pampattiwar, S. Periwal","doi":"10.1109/ICUEPES.2011.6497742","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497742","url":null,"abstract":"The desire to reduce electrical loading by using energy efficient lighting has resulted in a high level of interest in replacing conventional incandescent lamp with Compact Fluorescent Lamps and LED lamps. However, their high harmonic content was always a problem for the power quality of the power system networks, especially the ones with a considerable share of nonlinear loads. The problem of harmonics cannot be neglected in cases of installations with high lighting load. This paper presents an analysis of harmonics in a network where lighting is one of the main loads. CFLs and LED lamps with electronic gear are characterized by extremely distorted current, with high total current harmonic distortions. Hence they cause a significant voltage distortion in electrical installations. The network is simulated using the impedance network model, in PSCAD®/EMTDC™ software. A comparative analysis is performed on the power quality, maximum loading and economics of CFL lamps and LED lamps.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125324077","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}
{"title":"Electricity retail price in competitive market using the risk-adjusted capital asset pricing model (CAPM): A case of Thailand","authors":"P. Gamonwet, C. Marpaung","doi":"10.1109/ICUEPES.2011.6497712","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497712","url":null,"abstract":"Competitive environment in electricity retail sector helps to promote the efficiency of electricity demand and also provides preferred and affordable electricity price for the customers. However, due to the variation of Market Clearing Price (MCP) in the power supply market there is a hardly avoidable risk for the Electricity Retail Company. The overall objective for this study is to determine and perform preliminary analysis of an efficient electricity retail price in competitive market by using quantitative methods. Capital Asset Pricing Model (CAPM) is used for the financial analysis, while risk factor has been considered by using Risk Adjustment Recovery on Capital (RAROC). According to the using of CAPM and RAROC, the retailer company is expected to make highest return to the investment at the retail price of $24/MWh and is expected to bear highest risk of loss at the retail price of $25/MWh. Moreover, few recommendations are suggested for future work such as adding more variables cost, include transmission and distribution service charges within retail price, and demand bidding should be also integrated for bidding up the MCP.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116782454","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}
{"title":"A hybrid approach based on PSO and EP for proficient solving of Unit Commitment Problem","authors":"R. R. Singh, C. Rajan","doi":"10.1109/ICUEPES.2011.6497763","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497763","url":null,"abstract":"Unit Commitment Problem (UCP) is a nonlinear mixed integer optimization problem used in the scheduling operation of power system generating units subjected to demand and reserve requirement constraints for achieving minimum operating cost. The task of the UC problem is to determine the on/off state of the generating units at every hour interval of the planning period for optimally transmitting the load and reserve among the committed units. The importance for the necessity of a more effective optimal solution to the UCP problem is increasing with the regularly varying demand. Hereby, we propose a hybrid approach which solves the unit commitment problem subjected to necessary constraints and gives the optimal commitment of the units. The possible combination of demand and their corresponding optimal generation schedule can be determined by the PSO algorithm. Being a global optimization technique, Evolutionary Programming (EP) for solving Unit Commitment Problem, operates on a method, which encodes each unit's operating schedule with respect to up/down time. When the demand over a time horizon is given as input to the network it successfully gives the schedule of each unit's commitment that satisfies the demands of all the periods and results in minimum total cost.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116125553","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}
K. Tirawannavit, W. Krueasuk, P. Bhasaputra, W. Pattaraprakorn
{"title":"Energy management for light system in the convenience stores: Case study of gas station in Thailand","authors":"K. Tirawannavit, W. Krueasuk, P. Bhasaputra, W. Pattaraprakorn","doi":"10.1109/ICUEPES.2011.6497774","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497774","url":null,"abstract":"In Thailand, energy conservation has become one of the most challenging issues which are set as the nation agenda. Base on the development of electrical equipment especially, light bulbs, many technologies are proposed to evaluate the economics performance for convenience stores. In this paper, the energy management of lighting system in convenience stores for gas station is studied to enhance the energy efficiency in term of economic with the acceptable standard and regulation of Thailand. According to the existing system, T8 and standard ballast was typically installed in convenience stores for gas station that may be insufficient under energy crisis. The proposed energy management program will be discussed between the typical lighting system controlled by dimmer device and T5 with electronic ballast, which is a recommended technology from Ministry of Energy. In addition, the experimental results from selected gas station are presented in term of the luminance standard and energy conservation of proposed technologies. In the part of technical comparison, the T8 with dimmer device can decrease 38.67% of energy consumption which is better than T5 with electronic ballast. Furthermore, with additional 10% light dimming after midnight, the energy consumption is more reduced almost 10% without customer dissatisfaction. Not only the technical consideration but also the financial analysis is also evaluated in order to understand feasibility in practical implementation.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116858422","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}
{"title":"Performance evaluation of solar crop dryer integrated with solar air heater","authors":"V. Varun","doi":"10.1109/ICUEPES.2011.6497749","DOIUrl":"https://doi.org/10.1109/ICUEPES.2011.6497749","url":null,"abstract":"The aim of the experimental study is to develop a crop dryer with integrated solar air heater for domestic applications. Indirect drying is better than open sun drying in terms of the quality of the product achieved. The apparatus should also be economically viable for small scale farmers. The above evaluation is to be done by drying products like potatoes, tomatoes, onion, coriander and green chilies. The setup consists of collector plate of 1.3×1.6 m made of GI sheet and V-corrugated grooves with double glass cover. The drying chamber is 0.6×0.3×0.6 m (l×b×h) and has three layers of trays for keeping food items. The collector plate is inclined at 32° for year round application. The key parameters for suitable drying are temperature, humidity and flow rate levels. These parameters determine the moisture removal rates which are important to evaluate the appropriate drying duration for a particular food product.","PeriodicalId":262691,"journal":{"name":"2011 International Conference & Utility Exhibition on Power and Energy Systems: Issues and Prospects for Asia (ICUE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127178060","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}