Pub Date : 2016-12-01DOI: 10.1109/SASG.2016.7849673
A. Althobaiti, M. Armstrong, M. Elgendy
In recent years, there has been a rapid increase in the number of photovoltaic (PV) three phase inverter systems being to grid connected. Keeping the highly quality waveform and low harmonic distortion of the current waveform during abnormal condition is one of the most challenging. To achieve this target, a current control technique is carefully considered. This paper present a simple method to compensate the reactive power to the grid connected inverter to deal with abnormal grid condition. The control system using space vector modulation (SVM) with the more recently adopted Proportional Resonant controller (PR). The proposed technique will show an effective method for grid-connected application. Simulation results will demonstrate the effectiveness of the proposed technique.
{"title":"Space vector modulation current control of a three-phase PV grid-connected inverter","authors":"A. Althobaiti, M. Armstrong, M. Elgendy","doi":"10.1109/SASG.2016.7849673","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849673","url":null,"abstract":"In recent years, there has been a rapid increase in the number of photovoltaic (PV) three phase inverter systems being to grid connected. Keeping the highly quality waveform and low harmonic distortion of the current waveform during abnormal condition is one of the most challenging. To achieve this target, a current control technique is carefully considered. This paper present a simple method to compensate the reactive power to the grid connected inverter to deal with abnormal grid condition. The control system using space vector modulation (SVM) with the more recently adopted Proportional Resonant controller (PR). The proposed technique will show an effective method for grid-connected application. Simulation results will demonstrate the effectiveness of the proposed technique.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114663837","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849657
A. Baras, Russell K. Jones, Ayman Alqahtani, M. Alodan, King Abdullah
Saudi Arabia is blessed with a large amount of solar irradiation. However, as a dry desert region, soiling tends to accumulate on photovoltaic (PV) panels reducing the output energy, creating a concern for solar plant developers on how and when to clean the plant, and raising doubt about the economic feasibility of solar energy in Saudi Arabia. K-A-CARE has conducted a 3-year soiling measurement campaign in Rumah, Saudi Arabia, and in this work, detailed analysis of soiling losses from one year of data is reported. These losses are then used in an economic analysis of the cost of soiling for optimal cleaning intervals. The results show that soiling results in little economic loss given proper attention to cleaning.
{"title":"Measured soiling loss and its economic impact for PV plants in central Saudi Arabia","authors":"A. Baras, Russell K. Jones, Ayman Alqahtani, M. Alodan, King Abdullah","doi":"10.1109/SASG.2016.7849657","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849657","url":null,"abstract":"Saudi Arabia is blessed with a large amount of solar irradiation. However, as a dry desert region, soiling tends to accumulate on photovoltaic (PV) panels reducing the output energy, creating a concern for solar plant developers on how and when to clean the plant, and raising doubt about the economic feasibility of solar energy in Saudi Arabia. K-A-CARE has conducted a 3-year soiling measurement campaign in Rumah, Saudi Arabia, and in this work, detailed analysis of soiling losses from one year of data is reported. These losses are then used in an economic analysis of the cost of soiling for optimal cleaning intervals. The results show that soiling results in little economic loss given proper attention to cleaning.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128457118","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849686
Abdullah A. Al Jahil, D. Giarratano
Critical infrastructure organizations depend on Industrial Control Systems (ICS) by using operational technologies developed for business systems in their daily processes. This has provided an increased opportunity for cyber attacks against the critical systems they operate. Attack sources can vary from those that are state-sponsored, terrorist, unaware or disgruntled employees, and many more. Most such incidents go unnoticed or undisclosed. The recent shutdown of Ukrainian Grid, first publicly disclosed in Electrical Grid, proves that cyber threats to electrical grids are real and no longer fictional. Cyber risks to electrical grids that run critical infrastructure such as airports and hospitals need to be seriously considered and several necessary actions must be taken to protect grid availability.
{"title":"Improvement of cyber-security measures in National Grid SA substation process control","authors":"Abdullah A. Al Jahil, D. Giarratano","doi":"10.1109/SASG.2016.7849686","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849686","url":null,"abstract":"Critical infrastructure organizations depend on Industrial Control Systems (ICS) by using operational technologies developed for business systems in their daily processes. This has provided an increased opportunity for cyber attacks against the critical systems they operate. Attack sources can vary from those that are state-sponsored, terrorist, unaware or disgruntled employees, and many more. Most such incidents go unnoticed or undisclosed. The recent shutdown of Ukrainian Grid, first publicly disclosed in Electrical Grid, proves that cyber threats to electrical grids are real and no longer fictional. Cyber risks to electrical grids that run critical infrastructure such as airports and hospitals need to be seriously considered and several necessary actions must be taken to protect grid availability.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126945903","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849676
A. Yousef, G. El-Saady, Farag K. Abu-Elyouser
This research described a PV system supplied a large scale interconnected grid. A PV array is connected to AC grid via a DC-DC boost converter and a three-phase three-level Voltage Source Converter (VSC). Maximum Power Point Tracking (MPPT) is implemented in the boost converter by means of a Simulink model using the integral regulator technique. The fuzzy logic control are using to control of voltage source converter. Also a conventional PID control is using to damp a variation of output voltage. PV array delivering a maximum power at 1000 W/m⁁2 sun irradiance. Boost converter increasing voltage from PV natural voltage DC at maximum powe. Switching duty cycle is optimized by a MPPT controller that uses the integral regulator' technique. This MPPT system automatically varies the duty cycle in order to generate the required voltage to extract maximum power. A three phase VSC converts the 500 V DC link voltage to 260 V AC and keeps unity power factor. The VSC control system uses two control loops: an external control loop which regulates DC link voltage to 250 V and an internal control loop which regulates Id and Iq grid currents (active and reactive current components). Id current reference is the output of the DC voltage external controller. Iq current reference is set to zero in order to maintain unity power factor. Vd and Vq voltage outputs of the current controller are converted to three modulating signals used by the PWM Generator. The control system uses a sample time of 100 microseconds for voltage and current controllers as well as for the PLL synchronization unit. Pulse generators of Boost and VSC converters use a fast sample time of 1 microsecond in order to get an appropriate resolution of PWM waveforms. The power full of proposed fuzzy control is fast than conventional PID control.
{"title":"Fuzzy logic controller for a photovoltaic array system to AC grid connected","authors":"A. Yousef, G. El-Saady, Farag K. Abu-Elyouser","doi":"10.1109/SASG.2016.7849676","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849676","url":null,"abstract":"This research described a PV system supplied a large scale interconnected grid. A PV array is connected to AC grid via a DC-DC boost converter and a three-phase three-level Voltage Source Converter (VSC). Maximum Power Point Tracking (MPPT) is implemented in the boost converter by means of a Simulink model using the integral regulator technique. The fuzzy logic control are using to control of voltage source converter. Also a conventional PID control is using to damp a variation of output voltage. PV array delivering a maximum power at 1000 W/m⁁2 sun irradiance. Boost converter increasing voltage from PV natural voltage DC at maximum powe. Switching duty cycle is optimized by a MPPT controller that uses the integral regulator' technique. This MPPT system automatically varies the duty cycle in order to generate the required voltage to extract maximum power. A three phase VSC converts the 500 V DC link voltage to 260 V AC and keeps unity power factor. The VSC control system uses two control loops: an external control loop which regulates DC link voltage to 250 V and an internal control loop which regulates Id and Iq grid currents (active and reactive current components). Id current reference is the output of the DC voltage external controller. Iq current reference is set to zero in order to maintain unity power factor. Vd and Vq voltage outputs of the current controller are converted to three modulating signals used by the PWM Generator. The control system uses a sample time of 100 microseconds for voltage and current controllers as well as for the PLL synchronization unit. Pulse generators of Boost and VSC converters use a fast sample time of 1 microsecond in order to get an appropriate resolution of PWM waveforms. The power full of proposed fuzzy control is fast than conventional PID control.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130514223","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849689
M. Abduh, A. B. Hassan, A. Sheikh
Saudi Aramco electrical control and monitoring system evolved to Power Systems Automation (PSA). The first implementation of PSA was in 2009 following Saudi Aramco Internal Standard 126 imbued with IEC-61850 standard. Since then, search for new automation solution did not stop and the Company's cyber security level of maturity has increased, questing for improved cyber security measures. This document translates the knowledge gained since the implementation of PSA following Standard 126. It describes the current PSA architecture and drives recommendations to enhance the system to what Saudi Aramco envisions of an optimized PSA. Saudi Aramco Optimized PSA calls for increased reliability, rapid deployment, complete segregation between Substation and Control Room, reduced Total Cost of Ownership (TCO) and improved security. It induces Company's transition to the next level of future Substation Automation System.
{"title":"Saudi Aramco vision of optimized power system automation (PSA)","authors":"M. Abduh, A. B. Hassan, A. Sheikh","doi":"10.1109/SASG.2016.7849689","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849689","url":null,"abstract":"Saudi Aramco electrical control and monitoring system evolved to Power Systems Automation (PSA). The first implementation of PSA was in 2009 following Saudi Aramco Internal Standard 126 imbued with IEC-61850 standard. Since then, search for new automation solution did not stop and the Company's cyber security level of maturity has increased, questing for improved cyber security measures. This document translates the knowledge gained since the implementation of PSA following Standard 126. It describes the current PSA architecture and drives recommendations to enhance the system to what Saudi Aramco envisions of an optimized PSA. Saudi Aramco Optimized PSA calls for increased reliability, rapid deployment, complete segregation between Substation and Control Room, reduced Total Cost of Ownership (TCO) and improved security. It induces Company's transition to the next level of future Substation Automation System.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125502565","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849670
Ahmed Nasr Zeinhom
Flexible Alternating Current Transmission Systems (FACTS) are extensively used recently for improvement of large interconnected power systems performance in smart grids. Unified Power Flow Controller (UPFC) is the most versatile FACTS device which achieves a full-control of all of the transmission system parameters. UPFC is used with state-of-the-art control algorithms to optimize the dynamic performance of long-distance, bulk-power interconnection lines (bottlenecks). In this paper, the UPFC is investigated for a real 380 kV, 400 km, double-circuit tie transmission line connecting the central and western networks in the Kingdom of Saudi Arabia (KSA). Genetic Algorithm (GA) technique is used for optimal sizing and optimal allocation of the UPFC for the real system. Furthermore, the impacts of the presence of the UPFC on the existing protection system are assessed and feasible solutions are presented to overcome these challenges. MATLAB/SIMULINK is used to formulate the problem and to determine the optimum parameters and location of the UPFC. Simulation results are presented, discussed, and finally recommendations are given for an improvement of the interconnection system performance in terms of voltage profile and stability margin.
{"title":"Optimal sizing and allocation of Unified Power Flow Controller (UPFC) for enhancement of Saudi Arabian interconnected grid using Genetic Algorithm (GA)","authors":"Ahmed Nasr Zeinhom","doi":"10.1109/SASG.2016.7849670","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849670","url":null,"abstract":"Flexible Alternating Current Transmission Systems (FACTS) are extensively used recently for improvement of large interconnected power systems performance in smart grids. Unified Power Flow Controller (UPFC) is the most versatile FACTS device which achieves a full-control of all of the transmission system parameters. UPFC is used with state-of-the-art control algorithms to optimize the dynamic performance of long-distance, bulk-power interconnection lines (bottlenecks). In this paper, the UPFC is investigated for a real 380 kV, 400 km, double-circuit tie transmission line connecting the central and western networks in the Kingdom of Saudi Arabia (KSA). Genetic Algorithm (GA) technique is used for optimal sizing and optimal allocation of the UPFC for the real system. Furthermore, the impacts of the presence of the UPFC on the existing protection system are assessed and feasible solutions are presented to overcome these challenges. MATLAB/SIMULINK is used to formulate the problem and to determine the optimum parameters and location of the UPFC. Simulation results are presented, discussed, and finally recommendations are given for an improvement of the interconnection system performance in terms of voltage profile and stability margin.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116212359","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849682
Shankar V. Achanta, Larry Thoma, R. Rice, Dana Rippon
Modern power systems rely on precise and accurate time signals for efficient operation. Time-based measurement of power system signals is now possible with high-speed signal sampling combined with precise time sources. This paper describes advances in time sources, protocols, and distribution methods supported by modern substation clocks. It also describes how each of these time sources and protocols is characterized for performance. Affordable time technology for power utilities has advanced from milliseconds of accuracy 40 years ago to a few tens of nanoseconds in the past few years. Time distribution capabilities have improved as well with new ways of distributing time over local-area and wide-area networks. Technologies like traveling wave fault location (TWFL) have been in existence for decades but did not advance for years. With advances in precise and accurate time sources as well as distribution, there has been a fresh look at TWFL. Applications based on TWFL, synchrophasors, and Sampled Values can now take advantage of nanosecond timing accuracies. These solutions depend on reliable substation clocks designed, built, and tested with the same rigor as other protection and automation equipment in the substation. This paper also describes some of the common failure modes for substation clocks and their recovery mechanisms, including how these conditions are tested prior to deployment. Substation clocks need to withstand the same electrical and environmental stress conditions that protective relays are designed to withstand. This paper describes test setups with pass/fail criteria to characterize substation-hardened clocks during these conditions.
{"title":"Is your clock ticking all the time? Characterizing substation-hardened clocks for automation","authors":"Shankar V. Achanta, Larry Thoma, R. Rice, Dana Rippon","doi":"10.1109/SASG.2016.7849682","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849682","url":null,"abstract":"Modern power systems rely on precise and accurate time signals for efficient operation. Time-based measurement of power system signals is now possible with high-speed signal sampling combined with precise time sources. This paper describes advances in time sources, protocols, and distribution methods supported by modern substation clocks. It also describes how each of these time sources and protocols is characterized for performance. Affordable time technology for power utilities has advanced from milliseconds of accuracy 40 years ago to a few tens of nanoseconds in the past few years. Time distribution capabilities have improved as well with new ways of distributing time over local-area and wide-area networks. Technologies like traveling wave fault location (TWFL) have been in existence for decades but did not advance for years. With advances in precise and accurate time sources as well as distribution, there has been a fresh look at TWFL. Applications based on TWFL, synchrophasors, and Sampled Values can now take advantage of nanosecond timing accuracies. These solutions depend on reliable substation clocks designed, built, and tested with the same rigor as other protection and automation equipment in the substation. This paper also describes some of the common failure modes for substation clocks and their recovery mechanisms, including how these conditions are tested prior to deployment. Substation clocks need to withstand the same electrical and environmental stress conditions that protective relays are designed to withstand. This paper describes test setups with pass/fail criteria to characterize substation-hardened clocks during these conditions.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133976271","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849663
Sandeep Kumar Pathak
State Governments across the globe have an ambitious plan to transform the existing and new cities into “SMART CITY” with very objective to make cities “Livable”, “Reliable”, “Safe”, and “Comfortable” for citizens. Smart Grid is an inherent and integral part of the Smart City Program. Smart Grid in Smart City ensures Reliable, Safe and Quality Power 24/7 to its citizens at reasonable rates. However Distribution Grids are subject to frequent failure that can cause planned and unplanned power interruptions for utility customers. Major faults and outages on power distribution system have a significant economic and social impact. Despite advances by utility industry to protect and harden electrical grid, unplanned outages and faults critically jeopardize the “Availability” & “Reliability” of power supply. Therefore Power Distribution Utilities are challenged to improve their SAIDI for end customer satisfaction to commensurate with Smart City Standards. The SAIDI, (System Average Interruption Duration Index) is the average outage duration for each customer served, includes both planned and unplanned minutes off supply. Over last decade there has been significant improvement by power utilities worldwide in deploying Smart Grid solutions like GIS, AMI, SCADA-DMS, FPI, Customer Care, IVRand ERP to improve the operational efficiency of the utility. This paper describes that how business processes like AMI, GIS, CIS, FPI and SCADA-DMS help in improving the performance of Outage Management System (OMS) to efficiently manage the outage and thereby addressing both technical and organizational issues faced by the distribution utilities in the event of outages. These not only improve the utility performance, to be measured in terms of SAIDI, but also significantly improve the customer satisfaction and the attitude to wads utility and really makes city Smart.
{"title":"Leveraging GIS mapping and smart metering for improved OMS and SAIDI for smart city","authors":"Sandeep Kumar Pathak","doi":"10.1109/SASG.2016.7849663","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849663","url":null,"abstract":"State Governments across the globe have an ambitious plan to transform the existing and new cities into “SMART CITY” with very objective to make cities “Livable”, “Reliable”, “Safe”, and “Comfortable” for citizens. Smart Grid is an inherent and integral part of the Smart City Program. Smart Grid in Smart City ensures Reliable, Safe and Quality Power 24/7 to its citizens at reasonable rates. However Distribution Grids are subject to frequent failure that can cause planned and unplanned power interruptions for utility customers. Major faults and outages on power distribution system have a significant economic and social impact. Despite advances by utility industry to protect and harden electrical grid, unplanned outages and faults critically jeopardize the “Availability” & “Reliability” of power supply. Therefore Power Distribution Utilities are challenged to improve their SAIDI for end customer satisfaction to commensurate with Smart City Standards. The SAIDI, (System Average Interruption Duration Index) is the average outage duration for each customer served, includes both planned and unplanned minutes off supply. Over last decade there has been significant improvement by power utilities worldwide in deploying Smart Grid solutions like GIS, AMI, SCADA-DMS, FPI, Customer Care, IVRand ERP to improve the operational efficiency of the utility. This paper describes that how business processes like AMI, GIS, CIS, FPI and SCADA-DMS help in improving the performance of Outage Management System (OMS) to efficiently manage the outage and thereby addressing both technical and organizational issues faced by the distribution utilities in the event of outages. These not only improve the utility performance, to be measured in terms of SAIDI, but also significantly improve the customer satisfaction and the attitude to wads utility and really makes city Smart.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115937182","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849659
Mohammed Alghaiheb, Ayat Albuali, M. Gamaleldin
Overheating in the equipment and conductors can be primarily caused by harmonics in power systems. Decrease of harmonics is considered necessary, especially when capacitor banks exist. Using a detuned harmonic filter is a traditional solution. Current limiting reactors (CLR) can be an economical solution to damp harmonic pollution if installed in the optimal location. In this paper, power system studies, including: load flow, motor starting, and short circuit, are performed when placing CLR in different locations, to find the optimal location. Similarly, limitation of using CLR and costs are discussed. The study suggests CLR to reduce harmonic pollution, while detuned filters are used in case the CLR fails to satisfy the voltage regulation aspects of the network.
{"title":"Enhancement of power factor correction equipment performance using damping reactors (case study)","authors":"Mohammed Alghaiheb, Ayat Albuali, M. Gamaleldin","doi":"10.1109/SASG.2016.7849659","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849659","url":null,"abstract":"Overheating in the equipment and conductors can be primarily caused by harmonics in power systems. Decrease of harmonics is considered necessary, especially when capacitor banks exist. Using a detuned harmonic filter is a traditional solution. Current limiting reactors (CLR) can be an economical solution to damp harmonic pollution if installed in the optimal location. In this paper, power system studies, including: load flow, motor starting, and short circuit, are performed when placing CLR in different locations, to find the optimal location. Similarly, limitation of using CLR and costs are discussed. The study suggests CLR to reduce harmonic pollution, while detuned filters are used in case the CLR fails to satisfy the voltage regulation aspects of the network.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125945185","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 : 2016-12-01DOI: 10.1109/SASG.2016.7849668
Kei Hao, Shankar V. Achanta, B. Rowland, Andy Kivi
Integrating photovoltaic generation plants into electric power systems can impact grid stability, power quality, and the direction of power flow. To minimize such impacts, this paper proposes a simple and practical solution that uses high speed control and radio communications to quickly reduce the output of the entire plant to match local loads and limit the amount of power flowing toward the closest substation. The paper discusses how the proposed curtailment algorithm can minimize the impacts on the power system, installed equipment, and protective relays while taking into account system parameters such as availability, latency, security, and dependability.
{"title":"Mitigating the impacts of photovoltaics on the power system","authors":"Kei Hao, Shankar V. Achanta, B. Rowland, Andy Kivi","doi":"10.1109/SASG.2016.7849668","DOIUrl":"https://doi.org/10.1109/SASG.2016.7849668","url":null,"abstract":"Integrating photovoltaic generation plants into electric power systems can impact grid stability, power quality, and the direction of power flow. To minimize such impacts, this paper proposes a simple and practical solution that uses high speed control and radio communications to quickly reduce the output of the entire plant to match local loads and limit the amount of power flowing toward the closest substation. The paper discusses how the proposed curtailment algorithm can minimize the impacts on the power system, installed equipment, and protective relays while taking into account system parameters such as availability, latency, security, and dependability.","PeriodicalId":343189,"journal":{"name":"2016 Saudi Arabia Smart Grid (SASG)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126477173","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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