摘要
At present,the power system is more inclined towards disturbances,such as voltage variations and unbalanced load conditions,due to the grid's complexity and load growth.These challenges emphasize the integration of the compensating devices,such as battery storage(BS)and D-STATCOMs.In this regard,this current paper exhibits a novel energy management system(EMS)of a combined BS and D-STATCOM to compensate the power system during disturbances.The EMS is based on a fractional order sliding mode control(FOSMC)to drive the voltage source converters(VSCs)such that the active power is independently absorbed/injected by the BS,whereas the reactive power is independently absorbed/injected by the D-STATCOM depending upon the disturbance situation.FOSMC is a robust non-linear controller in which the Riemann-Liouville(RL)function is employed to design the sliding surface and the exponential reaching law is used to minimize the chattering phenomenon.The stability of the FOSMC in the proposed EMS is proved using the Lyapunov candidate function.In order to validate the performance of the proposed EMS,a model of a 400 V,180 kVA radial distributor along with a BS and D-STATCOM is simulated in MATLAB/Simulink environment in two test cases.The results prove that the proposed EMS with FOMSC effectively compensates the power system under voltage variations and unbalanced load conditions with rapid tracking,fast convergence and upright damping.Furthermore,the results have been compared with the classical proportional integral(PI)control and fixed frequency SMC(FFSMC),and they demonstrate the superiority of the proposed EMS with FOSMC in power system applications.
基金
supported by the research grant(20AUDP-B099686-06)from architecture&urban development research program funded by ministry of land,infrastructure and transport of Korean government.
作者简介
corresponding author:Asad Waqar,e-mail:asadwaqar.buic@bahria.edu.pk,received the Electrical Engineering degree from UET Taxila in 2002.After that he worked for various industries for several years.He received the master’s degree in Electrical Power Engineering from RWTH Aachen Germany in 2011 and the Ph.D.degree in Electrical Engineering from Huazhong University of Science and Technology.China,in 2016.Currently he is working as a Professor in the department of Electrical Engineering at Bahria University Islamabad.Pakistan.He is also the coordinator of the post graduate programs at Bahria University.His research interests include smart grids,microgrid operation and control,power quality,power electronics and network reinforcement planningORCID:https://orcid.org/0000-0001-6500-0990;Toqeer Ahmed received the BE degree in Electrical Engineering from Hamdard University,Islamabad,Pakistan and MS degree in Electrical Engineering from Bahria University,Islamabad,Pakistan.He is currently a Project Laboratory engineer at the Cenlre for Advanced Electronics and Photovoltaic Engineering(CAEPE),International Islamic University,Islamabad(IIUI),Pakistan.He also has experience in teaching laboratory courses to undergraduate students.He is a member of Pakistan Engineering Council(PEC)and Institution of Engineers.Pakistan(IEP).His research interests include microgrid operation and control,modelling and simulation,energy management system,power electronics,advanced electronics,power systems reliability and stability,power quality,FACTs devices,non-linear control techniques,and its application in the power industry;Essam A.Al-Ammar worked as a Power/Software Engineer at Lucent Technologies in Riyadh for two years.In 2003,he received the MS degree from the University of Alabama,Tuscaloosa,AL,and the Ph.D.degree from Arizona State University in 2007.He is an Associate Professor in the Electrical Engineering Department,King Saud University,Riyadh,Saudi Arabia.He was the Governor's Advisor in the Electricity Co-Generation Regulatory Authority(ECRA).Also,he was an advisor at the Ministry of Water and Electricity(MOWE)and a former Energy Consultant for Riyadh Techno Valley(RTV).He is involved in many local and international committees in different aspects in the area of power and electrical energy.His current interests include high voltage engineering,power system transmission and distribution as well as renewable energy and the smart grid.He is a Senior Member of IEEE since 2007 and the Saudi Engineering Committee since 1997.He published nearly 110 papers and 20 patents related to energy and water;Wonsuk Ko is an Assistant Professor of Electrical Engineering at the King Saud University.He received the B.S.and M.S.degrees from Kyungwon University,Seongnam,Korea,in 1996 and 1998.respectively,and the Ph.D.degree in Electrical Engineering from the University of Central Florida,Orlando,FL,USA,in 2007.He was a Researcher at Gachon Energy Research Institute of Gachon University,Korea,where he was also an Instructor with the Department of Electrical Engineering.His research interests include electromagnetic modeling,magnetic levitation,energy management,and smart grid;Yongki Kim is a research fellow for the Green Building Research Center at the Korea Institute of Civil Engineering and Building Technology.He received the B.S.and M.S.degrees from the Jeonbuk National University,Jconju,Korea,in 1998 and 2000.He is currently a Ph.D.candidate in Mechanical Engineering at the Korea University,Seoul,Korea.His research interests include solar thermal system,building energy management,residential battery energy storage system,and smart thermal grid;Muhammad Aaniir received the Ph.D.degree from the University of Malaya,Malaysia,the M.S.degree from Hanyang University,South Korea,and the B.Sc.degree in Engineering from UET Peshawar.He is currently working with Pak-Austria Fachhochschule Institute of Applied Sciences and Technology,Haripur,as an Assistant Professor.He has published multiple scientific articles in high impact factor journals.He is interested in improving the efficiency,reliability,operation,and control of renewable energy systems,as well as power electronics-based equipment;Habib Ur Rahman Habib received the BS degree in Electrical Engineering and MS degree in Electrical Power Engineering from the UET Tax-ila,Pakistan,in 2009 and 2015,respectively.From 2009 onward,he was with the COMSATS Institute of Information Technology,Pakistan,and the Wah Engineering College,University of Wah.Pakistan.He has been a Management Trainee Officer(Maintenance Department)with Dynamic Packaging Pvt.Ltd.,Lahore,Pakistan.He is currently pursuing a Ph.D.degree with the State Key Laboratory of Advanced Electromagnetic Engineering and Technology.Huazhong University of Science and Technology,Wuhan,China.He is also permanently with the Department of Electrical Engineering,University of Engineering and Technology Taxila,Pakistan.His research interests include electrical planning and estimation,energy resources and planning,modeling and simulation,renewable energy technology and management,smart grid applications in power systems,distributed generation and microgrid,power electronics,power quality,artificial intelligence,deep learning,fuzzy controllers,heuristic algorithms design,and optimization,energy economics,model predictive control and its application in the power industry.
