Pub Date : 2017-08-01DOI: 10.1109/UPEC.2017.8231922
Maxwell Sibanyoni, S. Daniel Chowdhury
Phase locked loop inverter synchronization method is the mostly used synchronization method for both single phase and three phase systems. Recent research has focused on the improvement of the performance of the phase lock loop inverter synchronization method under different grid conditions. The common phase locked loop synchronization techniques such as the Second Order Generalized Integrator based PLL (SOGI-OSG), Enhanced PLL (EPLL) all have certain disadvantages compared to each other and other synchronization techniques. Factors such as noise, low voltage ride and harmonics are part of the faults that inverters need to be able to control. A lot has been done recently to improve the performance of the phase lock loop such as using adaptive filters and other synchronization techniques together with phase lock loop synchronization.
{"title":"Synchronization strategy for single phase inverters for feeding renewable energy in South African National Grid","authors":"Maxwell Sibanyoni, S. Daniel Chowdhury","doi":"10.1109/UPEC.2017.8231922","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231922","url":null,"abstract":"Phase locked loop inverter synchronization method is the mostly used synchronization method for both single phase and three phase systems. Recent research has focused on the improvement of the performance of the phase lock loop inverter synchronization method under different grid conditions. The common phase locked loop synchronization techniques such as the Second Order Generalized Integrator based PLL (SOGI-OSG), Enhanced PLL (EPLL) all have certain disadvantages compared to each other and other synchronization techniques. Factors such as noise, low voltage ride and harmonics are part of the faults that inverters need to be able to control. A lot has been done recently to improve the performance of the phase lock loop such as using adaptive filters and other synchronization techniques together with phase lock loop synchronization.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124254672","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231865
A. Paspatis, G. Konstantopoulos, T. Papadopoulos, V. Nikolaidis
Grid codes are consistently updated in order to increase the operation efficiency of the power system. In many utilities, Low-Voltage-Ride-Through (LVRT) capability of Distributed Energy Resources (DERs) is nowadays a grid code requirement, according to which DERs should stay connected to faulty grid and support the voltage. This paper intends to illustrate the benefits gained from the LVRT capability of DERs to support voltage dynamically under short-circuit conditions. Both synchronous generators and inverter-interfaced DERs are included in the analysis, initially as single grid-connected units and subsequently as generating units connected to a benchmark distribution system. The importance of the synchronous machines voltage regulator parameters and that of the inverter-interfaced DERs' control system is highlighted. Local versus dispersed integration of DERs, the line type of the distribution feeder and the DERs regulator/controller operation are shown to play important role in grid voltage support during short-circuits if DERs are operating independently or together in a distribution system. Relevant conclusions occur from the simulation results.
{"title":"Dynamic grid voltage support from distributed energy resources during short-circuits","authors":"A. Paspatis, G. Konstantopoulos, T. Papadopoulos, V. Nikolaidis","doi":"10.1109/UPEC.2017.8231865","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231865","url":null,"abstract":"Grid codes are consistently updated in order to increase the operation efficiency of the power system. In many utilities, Low-Voltage-Ride-Through (LVRT) capability of Distributed Energy Resources (DERs) is nowadays a grid code requirement, according to which DERs should stay connected to faulty grid and support the voltage. This paper intends to illustrate the benefits gained from the LVRT capability of DERs to support voltage dynamically under short-circuit conditions. Both synchronous generators and inverter-interfaced DERs are included in the analysis, initially as single grid-connected units and subsequently as generating units connected to a benchmark distribution system. The importance of the synchronous machines voltage regulator parameters and that of the inverter-interfaced DERs' control system is highlighted. Local versus dispersed integration of DERs, the line type of the distribution feeder and the DERs regulator/controller operation are shown to play important role in grid voltage support during short-circuits if DERs are operating independently or together in a distribution system. Relevant conclusions occur from the simulation results.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123077467","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8232034
E. Hosseini, S. Alagab, S. Tennakoon
This paper presents a voltage regulated step up Marx DC-DC converter suitable for HVDC offshore wind farm applications. This configuration has the capability to generate a variable high voltage adding controllability to the standard Marx converter with a fixed gain. For voltage control, an auxiliary controlled buck-boost converter was combined with the Marx converter to regulate the output voltage. The studies were carried out by simulating the converter with the design specifications of 6kV to 30kV voltage on LV and HV sides and 5MW rated power. The simulation results showed good voltage stability on the output DC line when the converter input voltage varies.
{"title":"Voltage regulated interleaved Marx topology DC-DC converter","authors":"E. Hosseini, S. Alagab, S. Tennakoon","doi":"10.1109/UPEC.2017.8232034","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8232034","url":null,"abstract":"This paper presents a voltage regulated step up Marx DC-DC converter suitable for HVDC offshore wind farm applications. This configuration has the capability to generate a variable high voltage adding controllability to the standard Marx converter with a fixed gain. For voltage control, an auxiliary controlled buck-boost converter was combined with the Marx converter to regulate the output voltage. The studies were carried out by simulating the converter with the design specifications of 6kV to 30kV voltage on LV and HV sides and 5MW rated power. The simulation results showed good voltage stability on the output DC line when the converter input voltage varies.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115980842","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231996
Abdulwahab Alhamali, M. Farrag, G. Bevan, D. Hepburn
Concerns over global climate changes coupled with growing demand for energy are leading to increased penetration of distributed generation from intermittent sources into low voltage networks. In such cases distribution network (DN) operation will be affected. Consequently, there have been serious concerns over reliability and satisfactory operation of these power systems which contain distributed generation (DG) equipment. Distributed power generated from renewable sources is variable particularly in the case of wind generation or solar energy. The variability affects the stability of the system between supply and consumers. In DN, the losses and voltage drop across the network are significant matters and the DG location has a critical impact on the network operation. So, there is a clear need to optimise the DG size and location in the DN; for example, optimising the number of DG's and co-ordinating their operation can improve voltage drop and network losses. In this paper, an optimisation technique based on the genetic algorithm (GA) in conjunction with the power flow (PF) method is used to improve the DN performance and to identify the best location and size of the DG's. The main goal of the optimisation function is to reduce both the network losses and regulate the voltage level under different loading conditions.
{"title":"Determination of optimal site and capacity of DG systems in distribution network based on genetic algorithm","authors":"Abdulwahab Alhamali, M. Farrag, G. Bevan, D. Hepburn","doi":"10.1109/UPEC.2017.8231996","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231996","url":null,"abstract":"Concerns over global climate changes coupled with growing demand for energy are leading to increased penetration of distributed generation from intermittent sources into low voltage networks. In such cases distribution network (DN) operation will be affected. Consequently, there have been serious concerns over reliability and satisfactory operation of these power systems which contain distributed generation (DG) equipment. Distributed power generated from renewable sources is variable particularly in the case of wind generation or solar energy. The variability affects the stability of the system between supply and consumers. In DN, the losses and voltage drop across the network are significant matters and the DG location has a critical impact on the network operation. So, there is a clear need to optimise the DG size and location in the DN; for example, optimising the number of DG's and co-ordinating their operation can improve voltage drop and network losses. In this paper, an optimisation technique based on the genetic algorithm (GA) in conjunction with the power flow (PF) method is used to improve the DN performance and to identify the best location and size of the DG's. The main goal of the optimisation function is to reduce both the network losses and regulate the voltage level under different loading conditions.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131368888","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231956
E. Gagaoudakis, E. Aperathitis, V. Binas, L. Zouridi, O. Markaki, G. Kiriakidis
Thermal switching has attracted the research interest during the last decades. Phase Changing Materials (PCM) have the ability to vary their electric conductivity upon external stimuli such as heating and as a result they can be used as thermal switchers in transmission lines. Vanadium dioxide (VO2) is a PCM the electrical conductivity of which can be varied by 3–4 orders of magnitude, undergoing an insulator to metal transition (IMT) at a critical transition temperature of 68 oC. In this work VO2 in the form of powder was synthesized by hydrothermal synthesis and was tested as thermal switching material in as far as the critical transition temperature (TC) of IMT and the width (ΔTc) of IMT hysteresis loop are concerned.
{"title":"Transmission lines thermal switches utilizing novel phase changing materials","authors":"E. Gagaoudakis, E. Aperathitis, V. Binas, L. Zouridi, O. Markaki, G. Kiriakidis","doi":"10.1109/UPEC.2017.8231956","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231956","url":null,"abstract":"Thermal switching has attracted the research interest during the last decades. Phase Changing Materials (PCM) have the ability to vary their electric conductivity upon external stimuli such as heating and as a result they can be used as thermal switchers in transmission lines. Vanadium dioxide (VO2) is a PCM the electrical conductivity of which can be varied by 3–4 orders of magnitude, undergoing an insulator to metal transition (IMT) at a critical transition temperature of 68 oC. In this work VO2 in the form of powder was synthesized by hydrothermal synthesis and was tested as thermal switching material in as far as the critical transition temperature (TC) of IMT and the width (ΔTc) of IMT hysteresis loop are concerned.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116979456","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231986
Wattala Fernando, N. Gupta, C. S. Özveren
This paper will initially describe the electricity infrastructure in Sri Lanka, covering history, current status, and future directions. Secondly, it will explore the costs of electricity generated by different sources including initial capital, return on investment, as well as the costs of continuous operation, fuel, and maintenance in the context of Sri Lanka. It will then review the different requirements of base load plant and a peaking plants and how a significant contribution from variable and intermittent Renewable Energy resources can be accommodated for a secure and sustainable energy supply whilst addressing the environmental and economic concerns related to electricity generation. Finally, in will conclude by describing a set of policy options are needed for increasing energy efficiency with measures that are available now and at low or no cost, it's a cheaper option when compared to investment in energy infrastructure.
{"title":"The electricity infrastructure in Sri Lanka then, now and hereafter","authors":"Wattala Fernando, N. Gupta, C. S. Özveren","doi":"10.1109/UPEC.2017.8231986","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231986","url":null,"abstract":"This paper will initially describe the electricity infrastructure in Sri Lanka, covering history, current status, and future directions. Secondly, it will explore the costs of electricity generated by different sources including initial capital, return on investment, as well as the costs of continuous operation, fuel, and maintenance in the context of Sri Lanka. It will then review the different requirements of base load plant and a peaking plants and how a significant contribution from variable and intermittent Renewable Energy resources can be accommodated for a secure and sustainable energy supply whilst addressing the environmental and economic concerns related to electricity generation. Finally, in will conclude by describing a set of policy options are needed for increasing energy efficiency with measures that are available now and at low or no cost, it's a cheaper option when compared to investment in energy infrastructure.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114425385","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231896
F. Paterakis, C. Marouchos, M. Darwish, D. Nafpaktitis
A conventional 3-level PWM Inverter and a Cascaded Multilevel Inverter, both rated at 230Vrms voltage output and 3KW are analysed using the Switching Function. The PWM signal for the 3-level inverter is derived by applying the Switching Function Technique to the equal area principle. For the Cascaded Multilevel Inverter the Switching Function Technique is initially applied to each H-bridge, and then added to derive the overall Switching Function for the Multilevel Inverter output. A new technique is employed to derive the pulse width of each H-bridge converter in order to construct the output voltage. Voltage expressions of the output voltages are derived for both topologies. The switching frequency is chosen to be the same for both inverters. To ensure the same number of commutations over a fundamental cycle for both inverters, the levels of the Multilevel Inverter must be properly selected to meet the PWM frequency of the conventional inverter. Frequency spectrum and expressions of THD of the output voltage are derived. The two inverters are compared in terms of THD and harmonic content of the output voltage. The efficiency is concluded from the number of switching instances and other parameters of the circuit.
{"title":"Comparison of a PWM inverter and a multilevel inverter using the switching function analysis for harmonic content and efficiency","authors":"F. Paterakis, C. Marouchos, M. Darwish, D. Nafpaktitis","doi":"10.1109/UPEC.2017.8231896","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231896","url":null,"abstract":"A conventional 3-level PWM Inverter and a Cascaded Multilevel Inverter, both rated at 230Vrms voltage output and 3KW are analysed using the Switching Function. The PWM signal for the 3-level inverter is derived by applying the Switching Function Technique to the equal area principle. For the Cascaded Multilevel Inverter the Switching Function Technique is initially applied to each H-bridge, and then added to derive the overall Switching Function for the Multilevel Inverter output. A new technique is employed to derive the pulse width of each H-bridge converter in order to construct the output voltage. Voltage expressions of the output voltages are derived for both topologies. The switching frequency is chosen to be the same for both inverters. To ensure the same number of commutations over a fundamental cycle for both inverters, the levels of the Multilevel Inverter must be properly selected to meet the PWM frequency of the conventional inverter. Frequency spectrum and expressions of THD of the output voltage are derived. The two inverters are compared in terms of THD and harmonic content of the output voltage. The efficiency is concluded from the number of switching instances and other parameters of the circuit.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114538396","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231974
Jacques Wattel, M. Tomlinson, J. Beukes, T. Mouton
This paper investigates the use of smart meters to detect hazardous conditions on rural LV networks with a TN-C-S earthing system. Various hazards that can be detected by taking voltage and current measurements at the transformer and customer installations are identified and evaluated. These hazards include PEN conductor failure, transformer LV earth electrode high impedance failure and hazardous conditions that lead to current unbalance. Developmental smart meters were installed on an experimental laboratory feeder. Experimental results show that these hazards can be detected and communicated to the network utility via ZigBee and GPRS.
{"title":"Enabling low voltage network visibility to detect hazards on rural distribution networks","authors":"Jacques Wattel, M. Tomlinson, J. Beukes, T. Mouton","doi":"10.1109/UPEC.2017.8231974","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231974","url":null,"abstract":"This paper investigates the use of smart meters to detect hazardous conditions on rural LV networks with a TN-C-S earthing system. Various hazards that can be detected by taking voltage and current measurements at the transformer and customer installations are identified and evaluated. These hazards include PEN conductor failure, transformer LV earth electrode high impedance failure and hazardous conditions that lead to current unbalance. Developmental smart meters were installed on an experimental laboratory feeder. Experimental results show that these hazards can be detected and communicated to the network utility via ZigBee and GPRS.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121859162","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231882
M. Usman, F. Bignucolo, R. Turri, A. Cerretti
The proliferation of Distributed Energy Resources (DERs) in the Distribution Network (DN) has affected the optimal operation of the grid due to multiple technical issues such as voltage rise, reverse power flow, voltage unbalance, islanding etc. Therefore, optimal management of DERs is becoming a key research area to improve the system power quality. In this context, several active network management schemes have been proposed to mitigate the issues associated with DERs integration into the grid and ultimately reduce the network power losses. This paper provides a comprehensive review of these schemes along with a discussion on the network modelling and load profiling. Further, it also reports the possible future research areas in the field of losses management.
{"title":"Power losses management in low voltage active distribution networks","authors":"M. Usman, F. Bignucolo, R. Turri, A. Cerretti","doi":"10.1109/UPEC.2017.8231882","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231882","url":null,"abstract":"The proliferation of Distributed Energy Resources (DERs) in the Distribution Network (DN) has affected the optimal operation of the grid due to multiple technical issues such as voltage rise, reverse power flow, voltage unbalance, islanding etc. Therefore, optimal management of DERs is becoming a key research area to improve the system power quality. In this context, several active network management schemes have been proposed to mitigate the issues associated with DERs integration into the grid and ultimately reduce the network power losses. This paper provides a comprehensive review of these schemes along with a discussion on the network modelling and load profiling. Further, it also reports the possible future research areas in the field of losses management.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"58 2-3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116758759","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 : 2017-08-01DOI: 10.1109/UPEC.2017.8231980
B. Alamri, C. Marouchos, M. Darwish
While harmonics have adverse effects on both power utilities and customers, harmonic filtering is considered the most widely applied method among different harmonic-mitigation techniques. Passive power filters (PPFs) are currently more economical and commonly applied than active power filters (APFs). The problem of passive power filter (PPF) design is considered to be a combinatorial optimisation problem that can be solved by applying artificial intelligence. For PPF design, heuristic methods are powerful optimisation techniques and have many advantages such as: no requirement for detailed information about the power system and ability to achieve optimum PPF design compared to the conventional method. In addition, the cost of PPF implementation can be added to the optimisation objective, which is not considered in conventional design. The Authors of this paper propose an optimisation model based on genetic algorithm (GA) to design a composite PPF. As a case study, the model is applied to find the optimum filter design at the output of 5-level cascaded H-bridge multilevel invert (CHB-MLI). MATLAB-SIMULINK is used for the modelling and simulation.
{"title":"Optimum design of passive power filter (PPF) at the output of 5-level CHB-MLI using genetic algorithm (GA)","authors":"B. Alamri, C. Marouchos, M. Darwish","doi":"10.1109/UPEC.2017.8231980","DOIUrl":"https://doi.org/10.1109/UPEC.2017.8231980","url":null,"abstract":"While harmonics have adverse effects on both power utilities and customers, harmonic filtering is considered the most widely applied method among different harmonic-mitigation techniques. Passive power filters (PPFs) are currently more economical and commonly applied than active power filters (APFs). The problem of passive power filter (PPF) design is considered to be a combinatorial optimisation problem that can be solved by applying artificial intelligence. For PPF design, heuristic methods are powerful optimisation techniques and have many advantages such as: no requirement for detailed information about the power system and ability to achieve optimum PPF design compared to the conventional method. In addition, the cost of PPF implementation can be added to the optimisation objective, which is not considered in conventional design. The Authors of this paper propose an optimisation model based on genetic algorithm (GA) to design a composite PPF. As a case study, the model is applied to find the optimum filter design at the output of 5-level cascaded H-bridge multilevel invert (CHB-MLI). MATLAB-SIMULINK is used for the modelling and simulation.","PeriodicalId":272049,"journal":{"name":"2017 52nd International Universities Power Engineering Conference (UPEC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115690852","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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