Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401382
P. Tripathi, G. Pillai, H. Gupta
Presence of TCSC (Thyristor-Controlled Series Compensator) compensated transmission lines is increasing in modern power systems due to their benefits like increased power flow capacity but these benefits come at the cost of difficulty in protection of the transmission line. This paper presents a new method using SVM (Support Vector Machine) for fault classification in such line. This method is compared with existing SVM based methods and higher classification accuracy has been achieved. The improved accuracy is achieved by changing the architecture and input of the classifier. Genetic Algorithm (GA) is used to search globally optimum value of SVM parameters. Effect of sampling frequency and data window length on proposed scheme is also analyzed.
{"title":"New method for fault classification in TCSC compensated transmission line using GA tuned SVM","authors":"P. Tripathi, G. Pillai, H. Gupta","doi":"10.1109/POWERCON.2012.6401382","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401382","url":null,"abstract":"Presence of TCSC (Thyristor-Controlled Series Compensator) compensated transmission lines is increasing in modern power systems due to their benefits like increased power flow capacity but these benefits come at the cost of difficulty in protection of the transmission line. This paper presents a new method using SVM (Support Vector Machine) for fault classification in such line. This method is compared with existing SVM based methods and higher classification accuracy has been achieved. The improved accuracy is achieved by changing the architecture and input of the classifier. Genetic Algorithm (GA) is used to search globally optimum value of SVM parameters. Effect of sampling frequency and data window length on proposed scheme is also analyzed.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132419012","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401373
T. Leveringhaus, T. Breithaupt, L. Hofmann
Fast growing power capacities from renewable energies forced by Renewable energy laws and the finiteness of conventional resources lead to fundamental modifications of the power systems. This development combined with a slow proceeding in building new transmission lines and increasing international energy trading activities made network congestions became a daily problem of TSOs in the past years. This paper describes a new method for managing congestions by using a physically based superposition method. This method has the advantage to provide its results very fast, so it could also be used in online network management, but does not have disadvantages with regard to its accuracy. The method can be enhanced to find a solution at optimal costs. The method is firstly deduced from the basic equations of power flow calculation and is secondly applied to a dataset of the Interconnected Network of ENTSO-E within a case study. The results impressively demonstrate the performance of the method.
{"title":"Physically based congestion management by powerflow superposition methods at optimal cost","authors":"T. Leveringhaus, T. Breithaupt, L. Hofmann","doi":"10.1109/POWERCON.2012.6401373","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401373","url":null,"abstract":"Fast growing power capacities from renewable energies forced by Renewable energy laws and the finiteness of conventional resources lead to fundamental modifications of the power systems. This development combined with a slow proceeding in building new transmission lines and increasing international energy trading activities made network congestions became a daily problem of TSOs in the past years. This paper describes a new method for managing congestions by using a physically based superposition method. This method has the advantage to provide its results very fast, so it could also be used in online network management, but does not have disadvantages with regard to its accuracy. The method can be enhanced to find a solution at optimal costs. The method is firstly deduced from the basic equations of power flow calculation and is secondly applied to a dataset of the Interconnected Network of ENTSO-E within a case study. The results impressively demonstrate the performance of the method.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130183015","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401396
H. Zaini, S. Ghoneim
Computerized grounding analysis in uniform and two-layer soil types became widespread in the eighties, mainly because of the enhanced accuracy, speed and flexibility afforded by the use of modem computers. In this paper, an old but more accurate and practical technique is used for calculating the grounding resistance (Rg) as well as the Earth Surface Potential (ESP) of the grounding grids in two-layer soil which based upon the apparent resistivity of the two layer soil. This technique is based on the Current Simulation Method (CSM). This technique is used because of the current distribution on the electrode is not uniform when this current is injected into the grounding grid. The Current Simulation Method is analogous to the Charge Simulation Method. The validation of the method is described by a comparison with the results in literatures.
{"title":"Earth surface potential and grounding resistance for grounding grid in two-layer model soil","authors":"H. Zaini, S. Ghoneim","doi":"10.1109/POWERCON.2012.6401396","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401396","url":null,"abstract":"Computerized grounding analysis in uniform and two-layer soil types became widespread in the eighties, mainly because of the enhanced accuracy, speed and flexibility afforded by the use of modem computers. In this paper, an old but more accurate and practical technique is used for calculating the grounding resistance (Rg) as well as the Earth Surface Potential (ESP) of the grounding grids in two-layer soil which based upon the apparent resistivity of the two layer soil. This technique is based on the Current Simulation Method (CSM). This technique is used because of the current distribution on the electrode is not uniform when this current is injected into the grounding grid. The Current Simulation Method is analogous to the Charge Simulation Method. The validation of the method is described by a comparison with the results in literatures.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128937801","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401400
G. Gajjar, S. Soman
Measurements of power system quantities available through wide area measurement systems enables direct observations of power system electromechanical oscillations. But the raw observations data need to be processed to obtain the quantitative measures required to make any inference regarding the power system state. This paper presents some results on oscillation mode identification applied to a wide area frequency measurements system. We discuss the method using rotational invariant techniques for oscillatory mode identifications and issues involved in dealing with low signal to noise ratio. Finally some results on real measurements are presented with our inference on them.
{"title":"Power system oscillation modes identifications from wide area frequency measurement system","authors":"G. Gajjar, S. Soman","doi":"10.1109/POWERCON.2012.6401400","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401400","url":null,"abstract":"Measurements of power system quantities available through wide area measurement systems enables direct observations of power system electromechanical oscillations. But the raw observations data need to be processed to obtain the quantitative measures required to make any inference regarding the power system state. This paper presents some results on oscillation mode identification applied to a wide area frequency measurements system. We discuss the method using rotational invariant techniques for oscillatory mode identifications and issues involved in dealing with low signal to noise ratio. Finally some results on real measurements are presented with our inference on them.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132711434","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401302
M. Mandala, C. P. Gupta
In a competitive power market, the task of an independent system operator (ISO) is to ensure full dispatches of the contracted power are carried out reliably. However, if it threatens the system security then ISO makes decision on the re-dispatch of the contracted power i.e., Congestion Management. This paper proposes an optimal congestion management approach with reactive power support in a deregulated hybrid electricity market. The aim of the proposed work is to minimize deviations from preferred transaction schedules and hence the re-dispatch cost. The values of Transmission Congestion Distribution factors (TCDFs) are used to select re-dispatch of generators then minimization of re-dispatch cost is performed using Particle swarm optimization (PSO) and Particle swarm optimization with Time Varying Accelerating Coefficients (PSO-TVAC). Generator reactive power support is considered to lower the re-dispatch cost. Numerical results on test systems namely South African 18-bus and IEEE 118 bus systems are presented for illustration purpose. The comprehensive experimental results prove that re-dispatch cost is reduced with GENCOS reactive power support and PSO-TVAC is one among the challenging optimization methods which is indeed capable of obtaining higher quality solutions for the proposed problem.
{"title":"Transmission congestion management with reactive power support in hybrid electricity market","authors":"M. Mandala, C. P. Gupta","doi":"10.1109/POWERCON.2012.6401302","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401302","url":null,"abstract":"In a competitive power market, the task of an independent system operator (ISO) is to ensure full dispatches of the contracted power are carried out reliably. However, if it threatens the system security then ISO makes decision on the re-dispatch of the contracted power i.e., Congestion Management. This paper proposes an optimal congestion management approach with reactive power support in a deregulated hybrid electricity market. The aim of the proposed work is to minimize deviations from preferred transaction schedules and hence the re-dispatch cost. The values of Transmission Congestion Distribution factors (TCDFs) are used to select re-dispatch of generators then minimization of re-dispatch cost is performed using Particle swarm optimization (PSO) and Particle swarm optimization with Time Varying Accelerating Coefficients (PSO-TVAC). Generator reactive power support is considered to lower the re-dispatch cost. Numerical results on test systems namely South African 18-bus and IEEE 118 bus systems are presented for illustration purpose. The comprehensive experimental results prove that re-dispatch cost is reduced with GENCOS reactive power support and PSO-TVAC is one among the challenging optimization methods which is indeed capable of obtaining higher quality solutions for the proposed problem.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133175770","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401393
Hui Ren, Xiaozhou Fan, D. Watts, Xingchen Lv
Power systems are set to undergo dramatic changes driven by several factors ranging from climate change to technological developments. It is expected that networks will become more flexible to deal with increasing uncertainties, in those coming from future generation technologies and their locations as well as those from system operation practices. These developments will require fundamental changes in the way power systems are planned. This paper introduces a method of flexible transmission network planning with the traditional corrective control action assumed in the course of network planning. A two-stage solution algorithm is proposed combing Genetic Algorithm and Monte Carlo simulation. Candidate planning schemes are decided by Genetic Algorithm. Monte Carlo simulation and sensitivity method are used to find the most vulnerable part of the network, and then decides the amended control devices needed to be installed to achieve the optimum objective function and satisfy operational constraints (for each tested planning scheme). Discrete constraints associated with voltage control devices are included to make the simulation more realistic. The most flexible planning scheme is then defined as the one which needs the least investment on extra control devices. The proposed approach is implemented on an 18- bus test system and its feasibility is demonstrated.
{"title":"Flexible transmission planning considering growing uncertainties from Renewable energy integration","authors":"Hui Ren, Xiaozhou Fan, D. Watts, Xingchen Lv","doi":"10.1109/POWERCON.2012.6401393","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401393","url":null,"abstract":"Power systems are set to undergo dramatic changes driven by several factors ranging from climate change to technological developments. It is expected that networks will become more flexible to deal with increasing uncertainties, in those coming from future generation technologies and their locations as well as those from system operation practices. These developments will require fundamental changes in the way power systems are planned. This paper introduces a method of flexible transmission network planning with the traditional corrective control action assumed in the course of network planning. A two-stage solution algorithm is proposed combing Genetic Algorithm and Monte Carlo simulation. Candidate planning schemes are decided by Genetic Algorithm. Monte Carlo simulation and sensitivity method are used to find the most vulnerable part of the network, and then decides the amended control devices needed to be installed to achieve the optimum objective function and satisfy operational constraints (for each tested planning scheme). Discrete constraints associated with voltage control devices are included to make the simulation more realistic. The most flexible planning scheme is then defined as the one which needs the least investment on extra control devices. The proposed approach is implemented on an 18- bus test system and its feasibility is demonstrated.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115692036","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401404
C. H. Lin, C. S. Chen, W. Hsieh, C. Hsu, H. Chuang, C. Ho
The penetration level of a PV system is often limited due to the violation of voltage variation introduced by the large intermittent power generation. This paper discusses the use of distribution static compensator (DSTATCOM) to compensate reactive power during peak solar irradiation to prevent voltage violation so that the PV penetration level of a distribution feeder can be increased to fully utilize solar energy. The PV power generation is simulated according to the hourly solar irradiation and temperature data provided by the weather bureau. The voltage variation at the point of common coupling (PCC) is also derived by executing the 3-φ load flow analysis to investigate the maximum PV power injection without causing a voltage violation problem. When using the proposed voltage control scheme of the DSTATCOM during high solar irradiation periods, the total power generation and total energy delivered by the PV system over a 1-year period are determined according to the annual duration of solar irradiation. The annual cash flow from sales of PV power, the DSTATCOM installation cost, the O&M cost over the system life cycle, and the capital investment in the PV system are then used to calculate the net present value (NPV) of the PV project. With the proposed voltage control to perform reactive power compensation of the DSTATCOM, the optimal installation capacity of PV systems can be determined by maximizing the net present value of the system so that better cost effectiveness of the PV project and better utilization of solar energy can be obtained.
{"title":"Optimization of photovoltaic penetration with DSTATCOM in distribution systems","authors":"C. H. Lin, C. S. Chen, W. Hsieh, C. Hsu, H. Chuang, C. Ho","doi":"10.1109/POWERCON.2012.6401404","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401404","url":null,"abstract":"The penetration level of a PV system is often limited due to the violation of voltage variation introduced by the large intermittent power generation. This paper discusses the use of distribution static compensator (DSTATCOM) to compensate reactive power during peak solar irradiation to prevent voltage violation so that the PV penetration level of a distribution feeder can be increased to fully utilize solar energy. The PV power generation is simulated according to the hourly solar irradiation and temperature data provided by the weather bureau. The voltage variation at the point of common coupling (PCC) is also derived by executing the 3-φ load flow analysis to investigate the maximum PV power injection without causing a voltage violation problem. When using the proposed voltage control scheme of the DSTATCOM during high solar irradiation periods, the total power generation and total energy delivered by the PV system over a 1-year period are determined according to the annual duration of solar irradiation. The annual cash flow from sales of PV power, the DSTATCOM installation cost, the O&M cost over the system life cycle, and the capital investment in the PV system are then used to calculate the net present value (NPV) of the PV project. With the proposed voltage control to perform reactive power compensation of the DSTATCOM, the optimal installation capacity of PV systems can be determined by maximizing the net present value of the system so that better cost effectiveness of the PV project and better utilization of solar energy can be obtained.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114773870","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401275
C. Henville, K. Ward
Addition of series compensation to transmission lines will increase the power transfer capabilities of the lines. However the existing transmission line protection systems on both the compensated lines and nearby uncompensated lines can be significantly affected. The security of the protection on the adjacent lines can be compromised and both the security and the dependability of the protection on the compensated line can also be threatened. When compensation is being considered for existing lines to increase their transfer capacity, the lowest cost solution would be to retain the existing protection systems with minimum modifications. This paper describes two studies that were completed to identify the minimum upgrade work required to ensure reliable protection applications and settings considering the impact of proposed series compensation projects.
{"title":"Scoping protection modifications for series capacitor projects in New Zealand's South Island","authors":"C. Henville, K. Ward","doi":"10.1109/POWERCON.2012.6401275","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401275","url":null,"abstract":"Addition of series compensation to transmission lines will increase the power transfer capabilities of the lines. However the existing transmission line protection systems on both the compensated lines and nearby uncompensated lines can be significantly affected. The security of the protection on the adjacent lines can be compromised and both the security and the dependability of the protection on the compensated line can also be threatened. When compensation is being considered for existing lines to increase their transfer capacity, the lowest cost solution would be to retain the existing protection systems with minimum modifications. This paper describes two studies that were completed to identify the minimum upgrade work required to ensure reliable protection applications and settings considering the impact of proposed series compensation projects.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114675744","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401446
M. Reza, M. Ciobotaru, V. Agelidis
This paper presents a comparative analysis of three different quadrature signal generators such as the frequency locked loop (FLL) based linear Kalman filter (LKF) (LKF-FLL), the second order generalized integrator (SOGI) and FLL based quadrature signal generator (QSG) (SOGI-FLL) and the extended Kalman filter (EKF). In the LKF-FLL technique, the FLL is integrated with the LKF, where the LKF tracks the orthogonal waveforms of the gird voltage fundamental component based on the fundamental frequency estimated by the FLL. The LKF-FLL technique provides better steady state results and also takes smaller convergence time during the transients as compared to the SOGI-FLL and the EKF techniques. Moreover, the LKF-FLL technique is less complex than the EKF. Synthetically generated grid voltage waveforms are used in MATLAB/Simulink to depict the superior performance of the LKF-FLL technique.
{"title":"Frequency adaptive linear Kalman filter for fast and accurate estimation of grid voltage parameters","authors":"M. Reza, M. Ciobotaru, V. Agelidis","doi":"10.1109/POWERCON.2012.6401446","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401446","url":null,"abstract":"This paper presents a comparative analysis of three different quadrature signal generators such as the frequency locked loop (FLL) based linear Kalman filter (LKF) (LKF-FLL), the second order generalized integrator (SOGI) and FLL based quadrature signal generator (QSG) (SOGI-FLL) and the extended Kalman filter (EKF). In the LKF-FLL technique, the FLL is integrated with the LKF, where the LKF tracks the orthogonal waveforms of the gird voltage fundamental component based on the fundamental frequency estimated by the FLL. The LKF-FLL technique provides better steady state results and also takes smaller convergence time during the transients as compared to the SOGI-FLL and the EKF techniques. Moreover, the LKF-FLL technique is less complex than the EKF. Synthetically generated grid voltage waveforms are used in MATLAB/Simulink to depict the superior performance of the LKF-FLL technique.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"26 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116404701","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}
Pub Date : 2012-10-01DOI: 10.1109/POWERCON.2012.6401434
K. Ogawa, K. Ishikawa, A. Yokoyama, T. Shinji, S. Tsujita
Because of the global warming issue, the attention to renewable energy such as photovoltaic generations has increased. It is assumed that a lot of photovoltaic generations will be installed in the future according to Japanese government plans to install 28GW by 2020 and 53GW by 2030. However, it is expected that, when the load demand is low, surplus power occurs in the power system with a large penetration of photovoltaic generations. This issue is generally called “surplus power issue”. In the previous study, it was shown that the cost increase for absorbing surplus power by the existing DHC is inexpensive when it is assumed that the capacity of the DHC is constant. However, the initial construction cost of equipment must be considered from the viewpoint of the total cost of the DHC. In this paper, the DHC contribution considering the initial cost of equipment is studied.
{"title":"A study on the contribution to surplus power issue by District Heating and Cooling system considering the initial cost of equipment","authors":"K. Ogawa, K. Ishikawa, A. Yokoyama, T. Shinji, S. Tsujita","doi":"10.1109/POWERCON.2012.6401434","DOIUrl":"https://doi.org/10.1109/POWERCON.2012.6401434","url":null,"abstract":"Because of the global warming issue, the attention to renewable energy such as photovoltaic generations has increased. It is assumed that a lot of photovoltaic generations will be installed in the future according to Japanese government plans to install 28GW by 2020 and 53GW by 2030. However, it is expected that, when the load demand is low, surplus power occurs in the power system with a large penetration of photovoltaic generations. This issue is generally called “surplus power issue”. In the previous study, it was shown that the cost increase for absorbing surplus power by the existing DHC is inexpensive when it is assumed that the capacity of the DHC is constant. However, the initial construction cost of equipment must be considered from the viewpoint of the total cost of the DHC. In this paper, the DHC contribution considering the initial cost of equipment is studied.","PeriodicalId":176214,"journal":{"name":"2012 IEEE International Conference on Power System Technology (POWERCON)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125869872","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}
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