Pub Date : 2014-10-23DOI: 10.1109/UPEC.2014.6934759
K. Knezović, M. Marinelli, R. Møller, P. B. Andersen, C. Traholt, F. Sossan
With conventional generating units being replaced by renewable sources which are not required to provide same high level of ancillary services, there is an increasing need for additional resources to achieve certain standards regarding frequency and voltage. This paper investigates the potential of incorporating electric vehicles (EVs) in a low voltage distribution network with high penetration of photovoltaic installations (PVs), and focuses on analysing potential voltage support functions from EVs and PVs. In addition, the paper evaluates the benefits that reactive power control may provide with addressing the issues regarding voltage control at the expense of increased loading. Analysed real Danish low voltage network has been modelled in Matlab SimPowerSystems and is based on consumption and PV production data measured individually for number of households.
{"title":"Analysis of voltage support by electric vehicles and photovoltaic in a real Danish low voltage network","authors":"K. Knezović, M. Marinelli, R. Møller, P. B. Andersen, C. Traholt, F. Sossan","doi":"10.1109/UPEC.2014.6934759","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934759","url":null,"abstract":"With conventional generating units being replaced by renewable sources which are not required to provide same high level of ancillary services, there is an increasing need for additional resources to achieve certain standards regarding frequency and voltage. This paper investigates the potential of incorporating electric vehicles (EVs) in a low voltage distribution network with high penetration of photovoltaic installations (PVs), and focuses on analysing potential voltage support functions from EVs and PVs. In addition, the paper evaluates the benefits that reactive power control may provide with addressing the issues regarding voltage control at the expense of increased loading. Analysed real Danish low voltage network has been modelled in Matlab SimPowerSystems and is based on consumption and PV production data measured individually for number of households.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134241385","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934666
R. Mechouma, H. Aboub, B. Azoui
The multilevel multi-string inverter has gained much attention in recent years due to its advantages in lower switching loss, better electromagnetic compatibility, higher voltage capability, and lower harmonics. Solar Energy is one of the favorable renewable energy resources and the multilevel inverter has been proven to be one of the important enabling technologies in photovoltaic (PV) utilization. This paper proposes a three phase nine levels NPC grid connected photovoltaic inverter topology with a multicarrier dual reference pulse-width modulated (PWM) control scheme. Eight carrier waves of the same frequency and different amplitudes are compared with two references (a sine wave and its opposite) for generating the control signals of the switches. Some DC/DC boost converters are used to amplify the voltage produced by the photovoltaic generators. Each of these converters is controlled by an MPPT algorithm in order to track the maximum power point of the GPV. Results of simulation in Matlab environment are given and discussed.
{"title":"Multicarrier wave dual reference very low frequency PWM control of a nine levels NPC multi-string three phase inverter topology for photovoltaic system connected to a medium electric grid","authors":"R. Mechouma, H. Aboub, B. Azoui","doi":"10.1109/UPEC.2014.6934666","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934666","url":null,"abstract":"The multilevel multi-string inverter has gained much attention in recent years due to its advantages in lower switching loss, better electromagnetic compatibility, higher voltage capability, and lower harmonics. Solar Energy is one of the favorable renewable energy resources and the multilevel inverter has been proven to be one of the important enabling technologies in photovoltaic (PV) utilization. This paper proposes a three phase nine levels NPC grid connected photovoltaic inverter topology with a multicarrier dual reference pulse-width modulated (PWM) control scheme. Eight carrier waves of the same frequency and different amplitudes are compared with two references (a sine wave and its opposite) for generating the control signals of the switches. Some DC/DC boost converters are used to amplify the voltage produced by the photovoltaic generators. Each of these converters is controlled by an MPPT algorithm in order to track the maximum power point of the GPV. Results of simulation in Matlab environment are given and discussed.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130294089","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934713
T. Papadopoulos, Georgios C. Christoforidis, D. Micu, L. Czumbil
In this work a comprehensive study of the electromagnetic interference problem on a metallic pipeline exposed to medium voltage underground cable systems is presented. Simulations are carried out using the well-known software package ATP-EMTP and results of the induced voltages on the metallic pipeline are presented for several operating conditions and configurations. Results show that the induced voltages significantly depend on the cable configuration, whereas high and hazardous voltage levels may be arise as the asymmetry in the cable flowing currents increases with the worst case being the single-phase to ground fault.
{"title":"Medium-voltage cable inductive coupling to metallic pipelines: A comprehensive study","authors":"T. Papadopoulos, Georgios C. Christoforidis, D. Micu, L. Czumbil","doi":"10.1109/UPEC.2014.6934713","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934713","url":null,"abstract":"In this work a comprehensive study of the electromagnetic interference problem on a metallic pipeline exposed to medium voltage underground cable systems is presented. Simulations are carried out using the well-known software package ATP-EMTP and results of the induced voltages on the metallic pipeline are presented for several operating conditions and configurations. Results show that the induced voltages significantly depend on the cable configuration, whereas high and hazardous voltage levels may be arise as the asymmetry in the cable flowing currents increases with the worst case being the single-phase to ground fault.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114209762","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934720
Y. Bhavanam, Peter Berresford, G. Taylor, Jill Langsman
This paper is based on real time EV charging infrastructure development that took place at Brunel University, which is located in west of London, UK. The aim of this paper is to establish the policy making process that has stages of an initial student-staff interest survey, records of the consultation process with EV owners, results of competitive benchmarking with other HEI's and the discussion on Type 2 Mode 3 charging stations which are 240V, 32A, 7kW, 50Hz compliant with IEC 62196 and ISO 14443 Mifare standards. The first time ever PAYG concept of POD Point Ltd is explained. Benefits of using PAYG concept for charging EV are mentioned. Various other factors that played major role were also considered as follows: deciding the tariff of the electricity used by the EV owners, charging cable compatibility with charging station, hours of operation, creation of new enforcement rules and recommendations to provide incentives that recognise and motivate EV community.
{"title":"A novel policy making proposition for EV charging infrastructure management at HEI's","authors":"Y. Bhavanam, Peter Berresford, G. Taylor, Jill Langsman","doi":"10.1109/UPEC.2014.6934720","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934720","url":null,"abstract":"This paper is based on real time EV charging infrastructure development that took place at Brunel University, which is located in west of London, UK. The aim of this paper is to establish the policy making process that has stages of an initial student-staff interest survey, records of the consultation process with EV owners, results of competitive benchmarking with other HEI's and the discussion on Type 2 Mode 3 charging stations which are 240V, 32A, 7kW, 50Hz compliant with IEC 62196 and ISO 14443 Mifare standards. The first time ever PAYG concept of POD Point Ltd is explained. Benefits of using PAYG concept for charging EV are mentioned. Various other factors that played major role were also considered as follows: deciding the tariff of the electricity used by the EV owners, charging cable compatibility with charging station, hours of operation, creation of new enforcement rules and recommendations to provide incentives that recognise and motivate EV community.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117316099","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934813
Sacerdotianu Dumitru, Hurezeanu Iulian, Purcaru Ion
The reliability of transformer units and extending their life depend greatly on the degree of monitoring of their functional parameters with a view to determining the proper predictive maintenance measures, according to their interpretation. The achievements presented in this paper are the result of continuous upgrading which consisted in: increasing calculation accuracy, replacing the fixed point calculation by calculation in floating point, increasing calculation accuracy by replacing 10-byte CAN with 16-byte CAN, increasing the speed of acquisition-calculation by allocating the acquisition and calculation functions, increasing the sampling rate, increasing the speed and security of data transmission from the local monitoring system to the central processing unit by introducing the fiber optic support, increasing the data storage space on flash memory units and providing the possibility of monitoring system software configuration, depending on the monitored parameters and the reference specific elements of the application. The paper presents a compact embedded and local version with fiber optic support implementation within the circuits for processing the information in the field corresponding to the local monitoring equipment of transformer units. The presented version is of integrated equipment implemented for a power transformer monitoring system. The central unit is a single casting structure adapted for easy fastening on electric panels, overall dimensions approx. 280mm × 230mm × 100mm.
{"title":"Compact local system designed for power transformer monitoring — Type MONITRA control process","authors":"Sacerdotianu Dumitru, Hurezeanu Iulian, Purcaru Ion","doi":"10.1109/UPEC.2014.6934813","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934813","url":null,"abstract":"The reliability of transformer units and extending their life depend greatly on the degree of monitoring of their functional parameters with a view to determining the proper predictive maintenance measures, according to their interpretation. The achievements presented in this paper are the result of continuous upgrading which consisted in: increasing calculation accuracy, replacing the fixed point calculation by calculation in floating point, increasing calculation accuracy by replacing 10-byte CAN with 16-byte CAN, increasing the speed of acquisition-calculation by allocating the acquisition and calculation functions, increasing the sampling rate, increasing the speed and security of data transmission from the local monitoring system to the central processing unit by introducing the fiber optic support, increasing the data storage space on flash memory units and providing the possibility of monitoring system software configuration, depending on the monitored parameters and the reference specific elements of the application. The paper presents a compact embedded and local version with fiber optic support implementation within the circuits for processing the information in the field corresponding to the local monitoring equipment of transformer units. The presented version is of integrated equipment implemented for a power transformer monitoring system. The central unit is a single casting structure adapted for easy fastening on electric panels, overall dimensions approx. 280mm × 230mm × 100mm.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116078755","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934802
Tianqi Zhang, Chuanyue Li, Jun Liang
This paper achieves flexible power flow control by inserting a DC voltage to a line of MTDC transmission. A thyristor based power flow control device is designed to generate this inserted DC voltage. Three-phase six-pulse rectifier using thyristor can convert an AC voltage from AC generator or AC grid to a DC voltage. Power exchange occurs between the AC voltage terminal and DC grids without causing extra power losses which would be found if an inserted resistance is used. A control system is designed for the device and for the power flow control. This design is simulated by using PSCAD/MTDC and evaluated under different operation conditions. The control system is evaluated. Power flow control method is evaluated. This simulation proves the capability of the device to control the power flow effectively.
{"title":"A thyristor based series power flow control device for multi-terminal HVDC transmission","authors":"Tianqi Zhang, Chuanyue Li, Jun Liang","doi":"10.1109/UPEC.2014.6934802","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934802","url":null,"abstract":"This paper achieves flexible power flow control by inserting a DC voltage to a line of MTDC transmission. A thyristor based power flow control device is designed to generate this inserted DC voltage. Three-phase six-pulse rectifier using thyristor can convert an AC voltage from AC generator or AC grid to a DC voltage. Power exchange occurs between the AC voltage terminal and DC grids without causing extra power losses which would be found if an inserted resistance is used. A control system is designed for the device and for the power flow control. This design is simulated by using PSCAD/MTDC and evaluated under different operation conditions. The control system is evaluated. Power flow control method is evaluated. This simulation proves the capability of the device to control the power flow effectively.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"646 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123288252","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934747
S. I. Vagropoulos, Alexandros Kleidaras, A. Bakirtzis
This paper assesses the financial viability of an investment on Electric Vehicle Charging Stations (EVCSs) from a commercial/industrial workplace with a parking lot, which acts as a reseller that purchases energy from the grid and then sells energy to the Electric Vehicle (EV) owners at a new flat rate tariff. Investment cost drivers (expected EVCSs costs, anticipated EV charging needs, EVCSs operational life etc.) are specified by associated market researches. Two typical capital budgeting methods applied to discounted cash flows, the internal rate of return (IRR) and the net present value (NPV) method, are used to measure the investment's profitability. Level II charging installations (3.3 kW and 7.2 kW) are examined and the case focuses on a Greek facility thus, retail-tariffs contracts of the biggest Greek electricity retailer and EV penetration scenarios for Greece are considered. Results about the investment profitability are derived, followed by remarks on strategies that can increase facility's profit. As the EVSCs market is still immature, a sensitivity analysis for various parameters is carried out to better support the economic results. The key profit determinants are identified.
{"title":"Financial viability of investments on electric vehicle charging stations in workplaces with parking lots under flat rate retail tariff schemes","authors":"S. I. Vagropoulos, Alexandros Kleidaras, A. Bakirtzis","doi":"10.1109/UPEC.2014.6934747","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934747","url":null,"abstract":"This paper assesses the financial viability of an investment on Electric Vehicle Charging Stations (EVCSs) from a commercial/industrial workplace with a parking lot, which acts as a reseller that purchases energy from the grid and then sells energy to the Electric Vehicle (EV) owners at a new flat rate tariff. Investment cost drivers (expected EVCSs costs, anticipated EV charging needs, EVCSs operational life etc.) are specified by associated market researches. Two typical capital budgeting methods applied to discounted cash flows, the internal rate of return (IRR) and the net present value (NPV) method, are used to measure the investment's profitability. Level II charging installations (3.3 kW and 7.2 kW) are examined and the case focuses on a Greek facility thus, retail-tariffs contracts of the biggest Greek electricity retailer and EV penetration scenarios for Greece are considered. Results about the investment profitability are derived, followed by remarks on strategies that can increase facility's profit. As the EVSCs market is still immature, a sensitivity analysis for various parameters is carried out to better support the economic results. The key profit determinants are identified.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123913541","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934764
N. K. Neto, I. C. Figueiró, A. Abaide, D. Bernardon, L. Canha, A. S. Silveira, R. Pressi
The power system is changing. Classic methodologies applied for planning the distribution system should be adapted in an environment of Smart Grids. In this sense, an accurate forecast of energy demand will be essential to the utilities in this new grid model, being prepared for insertion of electric vehicles (EV), distributed generation (DG) and strategies on the demand side management (DSM). Therefore, this paper aims to evaluate and discuss the main challenges that energy companies in the Brazilian electric sector will face in the coming years. The impact of new variables in load forecast are presented as well as forecasting methodologies that have been studied and applied, aiming to identify establish guidelines to the utilities in their future studies of load forecast and system planning.
{"title":"Smart grid and the prospects of electricity demand forecast in Brazilian distribution system","authors":"N. K. Neto, I. C. Figueiró, A. Abaide, D. Bernardon, L. Canha, A. S. Silveira, R. Pressi","doi":"10.1109/UPEC.2014.6934764","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934764","url":null,"abstract":"The power system is changing. Classic methodologies applied for planning the distribution system should be adapted in an environment of Smart Grids. In this sense, an accurate forecast of energy demand will be essential to the utilities in this new grid model, being prepared for insertion of electric vehicles (EV), distributed generation (DG) and strategies on the demand side management (DSM). Therefore, this paper aims to evaluate and discuss the main challenges that energy companies in the Brazilian electric sector will face in the coming years. The impact of new variables in load forecast are presented as well as forecasting methodologies that have been studied and applied, aiming to identify establish guidelines to the utilities in their future studies of load forecast and system planning.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125124237","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934626
S. Balasubramaniam, Jun Liang, C. E. Ugalde-Loo
Increased offshore wind penetration has raised the need of multi-terminal high-voltage direct-current (MTDC) grids. An MTDC system will enable cross-border energy exchange where the excessive energy can be transferred between countries, increasing the functionality and reliability of the network. However, as the number of terminals and branches increases, power flow management becomes a challenge. To improve reliability and efficiency, power flow needs to be rescheduled between terminals. This can be achieved by introducing a power flow controller (PFC). In this paper, an insulated-gate bipolar transistor based series PFC is proposed. A PFC is basically a low power rated controllable voltage source connected in series with a DC line. It enables the regulation of grid power flow via a small series voltage injection. A four-terminal MTDC system is modelled using Simulink/ SimPowerSystems to test the impact of the proposed device. This is analysed under two different control strategies for the voltage source converter-based terminals; namely, master-slave and voltage droop control. Simulation results show that the PFC is capable of enhancing the system performance by suitably redirecting the power flow at the point of connection. Moreover, the results clearly illustrate that the converter control modes effectively affect the power flow in the MTDC grid.
{"title":"An IGBT based series power flow controller for multi-terminal HVDC transmission","authors":"S. Balasubramaniam, Jun Liang, C. E. Ugalde-Loo","doi":"10.1109/UPEC.2014.6934626","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934626","url":null,"abstract":"Increased offshore wind penetration has raised the need of multi-terminal high-voltage direct-current (MTDC) grids. An MTDC system will enable cross-border energy exchange where the excessive energy can be transferred between countries, increasing the functionality and reliability of the network. However, as the number of terminals and branches increases, power flow management becomes a challenge. To improve reliability and efficiency, power flow needs to be rescheduled between terminals. This can be achieved by introducing a power flow controller (PFC). In this paper, an insulated-gate bipolar transistor based series PFC is proposed. A PFC is basically a low power rated controllable voltage source connected in series with a DC line. It enables the regulation of grid power flow via a small series voltage injection. A four-terminal MTDC system is modelled using Simulink/ SimPowerSystems to test the impact of the proposed device. This is analysed under two different control strategies for the voltage source converter-based terminals; namely, master-slave and voltage droop control. Simulation results show that the PFC is capable of enhancing the system performance by suitably redirecting the power flow at the point of connection. Moreover, the results clearly illustrate that the converter control modes effectively affect the power flow in the MTDC grid.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130875747","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 : 2014-10-23DOI: 10.1109/UPEC.2014.6934643
Qingqing Yang, C. Gu, S. Le Blond, Jianwei Li
Distributed solar photovoltaic panels (PV) installed on the roofs of domestic houses generate electricity from sunlight, which is important for both decarbonization and electricity bill reduction. This paper proposes a new control approach to enable high density solar PV generation to be connected to low voltage (LV) networks more efficiently by working closely with in-home battery. The charging and discharging periods are crucially important for improving the efficiency of the PV battery. An optimal control scheme for energy storage systems in LV networks is introduced to facilitate demand response (DR). The method described also regulates thermal violation and voltage violation caused by PV generation. Finally, the paper uses a five node LV network and typical household profiles to demonstrate the effectiveness of the proposed control strategy. The benefits in terms of load shift are shown under three different configurations by using a selected lithium-ion battery.
{"title":"Control scheme for energy storage in domestic households","authors":"Qingqing Yang, C. Gu, S. Le Blond, Jianwei Li","doi":"10.1109/UPEC.2014.6934643","DOIUrl":"https://doi.org/10.1109/UPEC.2014.6934643","url":null,"abstract":"Distributed solar photovoltaic panels (PV) installed on the roofs of domestic houses generate electricity from sunlight, which is important for both decarbonization and electricity bill reduction. This paper proposes a new control approach to enable high density solar PV generation to be connected to low voltage (LV) networks more efficiently by working closely with in-home battery. The charging and discharging periods are crucially important for improving the efficiency of the PV battery. An optimal control scheme for energy storage systems in LV networks is introduced to facilitate demand response (DR). The method described also regulates thermal violation and voltage violation caused by PV generation. Finally, the paper uses a five node LV network and typical household profiles to demonstrate the effectiveness of the proposed control strategy. The benefits in terms of load shift are shown under three different configurations by using a selected lithium-ion battery.","PeriodicalId":414838,"journal":{"name":"2014 49th International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130069682","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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