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Advancing Distribution Automation Through Model-Based and Machine Learning Approaches
Advancing Distribution Automation Through Model-Based and Machine Learning Approaches
Advancing Distribution Automation Through Model-Based and Machine Learning Approaches

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자료유형  
 학위논문 서양
최종처리일시  
20260202105603
ISBN  
9798265400536
DDC  
621.319
저자명  
Chen, Zhengrong.
서명/저자  
Advancing Distribution Automation Through Model-Based and Machine Learning Approaches
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
164 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
주기사항  
Advisor: Meliopoulos, A. P.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약With the rise in distributed energy resources (DERs) and electric vehicles (EVs), electric power systems, especially distribution systems, are transforming into active systems with renewable and low-carbon energy resources. Shifting from passive to active is one of the most significant characteristics of distribution systems, allowing bidirectional power flow from DERs. Such change brings challenges to distribution systems, including growing complexity, heightened uncertainty, frequent voltage violations, dynamic load demand, and cybersecurity issues. With the development of advanced metering infrastructures (AMI), leveraging extensive sampled and historical data enables real-time monitoring and control to enhance the resilience of Active Distribution Networks (ADNs) under uncertainties and cyberattacks. This dissertation aims to advance distribution automation (DA) in terms of protection, control, and optimization to ensure secure, reliable, and resilient distribution system operation. Specifically, this dissertation explores advanced model-based and data-driven methodologies in this framework, including state estimation, fault diagnosis, voltage control, and load management.First, we propose a Dynamic State Estimation-Based Protection (EBP) scheme for addressing protection challenges posed by Inverter-Based Resources (IBRs). Unlike the legacy state estimation method, Dynamic State Estimation (DSE) uses two consecutive sample values to compute the estimation instead of steady-state current and voltage phasors. The object-oriented DSE algorithm requires high-fidelity device models, measurement models, and a DSE process. The main idea of EBP is to detect faults by checking the consistency between the measurements and the mathematical system model. The fault is identified by a low confidence level, suggesting an inconsistency between the measurements and the model. Simulation results demonstrate the benefits of the proposed EBP method, including simple settings, high accuracy, and fast response time.Once the fault is detected, a real-time fault diagnosis framework is proposed for fault classification and fault locating. We utilize a supervised Deep Learning (DL) model for real-time fault classification. Compared with other Machine Learning (ML) methods, this model has lower computational complexity and is more efficient for processing long sequences of real-time data. This advantage makes it more efficient for processing long sequences of real-time data. Moreover, it can automatically learn relevant features from sequential data, reducing the need for manual feature engineering. The main idea of the Dynamic State Estimation-Based Fault Locating (EBFL) algorithm is to treat the fault location as a state to obtain its best estimation. A non-linear weighted least square (WLS) estimator is applied for the state estimation process. Note that the DSE applications, including EBP and EBFL, use the dynamic device model of distribution systems, expressed in a standard syntax referred to as State Control and Parameter Algebraic Quadratic Companion Form (SCPAQCF).A model-free Vol-VAR Optimization (VVO) method via Robust Deep Reinforcement Learning (RDRL) algorithm is developed to enhance the voltage profile of distribution systems. Unlike a standard DRL, RDRL offers improved performance in unpredictable conditions and the ability to handle power injection uncertainties, where the uncertainties are considered adversarial attacks, making it highly effective in finding an optimal or suboptimal solution without solving complex min-max optimization problems. Moreover, we design the uncertainty sets acquired by conformal prediction as the inputs of actor-critic networks. This information provides robustness during training. Numerical results illustrate the effectiveness of the proposed RDRL methodology for the online application of the VVO problems with enhanced safety regions.
일반주제명  
Smart grid technology
일반주제명  
Demand side management
일반주제명  
Energy consumption
일반주제명  
Electric vehicles
일반주제명  
Decision making
일반주제명  
Neural networks
일반주제명  
Behavioral psychology
일반주제명  
Home economics
일반주제명  
Information technology
일반주제명  
Transportation
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05A.
전자적 위치 및 접속  
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■1001  ▼aChen,  Zhengrong.
■24510▼aAdvancing  Distribution  Automation  Through  Model-Based  and  Machine  Learning  Approaches
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a164  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  A.
■500    ▼aAdvisor:  Meliopoulos,  A.  P.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aWith  the  rise  in  distributed  energy  resources  (DERs)  and  electric  vehicles  (EVs),  electric  power  systems,  especially  distribution  systems,  are  transforming  into  active  systems  with  renewable  and  low-carbon  energy  resources.  Shifting  from  passive  to  active  is  one  of  the  most  significant  characteristics  of  distribution  systems,  allowing  bidirectional  power  flow  from  DERs.  Such  change  brings  challenges  to  distribution  systems,  including  growing  complexity,  heightened  uncertainty,  frequent  voltage  violations,  dynamic  load  demand,  and  cybersecurity  issues.  With  the  development  of  advanced  metering  infrastructures  (AMI),  leveraging  extensive  sampled  and  historical  data  enables  real-time  monitoring  and  control  to  enhance  the  resilience  of  Active  Distribution  Networks  (ADNs)  under  uncertainties  and  cyberattacks.  This  dissertation  aims  to  advance  distribution  automation  (DA)  in  terms  of  protection,  control,  and  optimization  to  ensure  secure,  reliable,  and  resilient  distribution  system  operation.  Specifically,  this  dissertation  explores  advanced  model-based  and  data-driven  methodologies  in  this  framework,  including  state  estimation,  fault  diagnosis,  voltage  control,  and  load  management.First,  we  propose  a  Dynamic  State  Estimation-Based  Protection  (EBP)  scheme  for  addressing  protection  challenges  posed  by  Inverter-Based  Resources  (IBRs).  Unlike  the  legacy  state  estimation  method,  Dynamic  State  Estimation  (DSE)  uses  two  consecutive  sample  values  to  compute  the  estimation  instead  of  steady-state  current  and  voltage  phasors.  The  object-oriented  DSE  algorithm  requires  high-fidelity  device  models,  measurement  models,  and  a  DSE  process.  The  main  idea  of  EBP  is  to  detect  faults  by  checking  the  consistency  between  the  measurements  and  the  mathematical  system  model.  The  fault  is  identified  by  a  low  confidence  level,  suggesting  an  inconsistency  between  the  measurements  and  the  model.  Simulation  results  demonstrate  the  benefits  of  the  proposed  EBP  method,  including  simple  settings,  high  accuracy,  and  fast  response  time.Once  the  fault  is  detected,  a  real-time  fault  diagnosis  framework  is  proposed  for  fault  classification  and  fault  locating.  We  utilize  a  supervised  Deep  Learning  (DL)  model  for  real-time  fault  classification.  Compared  with  other  Machine  Learning  (ML)  methods,  this  model  has  lower  computational  complexity  and  is  more  efficient  for  processing  long  sequences  of  real-time  data.  This  advantage  makes  it  more  efficient  for  processing  long  sequences  of  real-time  data.  Moreover,  it  can  automatically  learn  relevant  features  from  sequential  data,  reducing  the  need  for  manual  feature  engineering.  The  main  idea  of  the  Dynamic  State  Estimation-Based  Fault  Locating  (EBFL)  algorithm  is  to  treat  the  fault  location  as  a  state  to  obtain  its  best  estimation.  A  non-linear  weighted  least  square  (WLS)  estimator  is  applied  for  the  state  estimation  process.  Note  that  the  DSE  applications,  including  EBP  and  EBFL,  use  the  dynamic  device  model  of  distribution  systems,  expressed  in  a  standard  syntax  referred  to  as  State  Control  and  Parameter  Algebraic  Quadratic  Companion  Form  (SCPAQCF).A  model-free  Vol-VAR  Optimization  (VVO)  method  via  Robust  Deep  Reinforcement  Learning  (RDRL)  algorithm  is  developed  to  enhance  the  voltage  profile  of  distribution  systems.  Unlike  a  standard  DRL,  RDRL  offers  improved  performance  in  unpredictable  conditions  and  the  ability  to  handle  power  injection  uncertainties,  where  the  uncertainties  are  considered  adversarial  attacks,  making  it  highly  effective  in  finding  an  optimal  or  suboptimal  solution  without  solving  complex  min-max  optimization  problems.  Moreover,  we  design  the  uncertainty  sets  acquired  by  conformal  prediction  as  the  inputs  of  actor-critic  networks.  This  information  provides  robustness  during  training.  Numerical  results  illustrate  the  effectiveness  of  the  proposed  RDRL  methodology  for  the  online  application  of  the  VVO  problems  with  enhanced  safety  regions.
■590    ▼aSchool  code:  0078.
■650  4▼aSmart  grid  technology
■650  4▼aDemand  side  management
■650  4▼aEnergy  consumption
■650  4▼aElectric  vehicles
■650  4▼aDecision  making
■650  4▼aNeural  networks
■650  4▼aBehavioral  psychology
■650  4▼aHome  economics
■650  4▼aInformation  technology
■650  4▼aTransportation
■690    ▼a0800
■690    ▼a0384
■690    ▼a0386
■690    ▼a0489
■690    ▼a0454
■690    ▼a0709
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05A.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360667▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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