An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems
This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the problem as an optimization program, where the...
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          | Published in | IEEE transactions on power systems Vol. 30; no. 4; pp. 1714 - 1726 | 
|---|---|
| Main Authors | , , , | 
| Format | Journal Article | 
| Language | English | 
| Published | 
            IEEE
    
        01.07.2015
     | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 0885-8950 1558-0679  | 
| DOI | 10.1109/TPWRS.2014.2347281 | 
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| Abstract | This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the problem as an optimization program, where the objective is to minimize the losses in the network subject to constraints on bus voltage magnitudes, limits on active and reactive power injections, transmission line thermal limits and losses. We provide sufficient conditions under which the optimization problem can be solved via its convex relaxation. Using data from existing networks, we show that these sufficient conditions are expected to be satisfied by most networks. We also provide an efficient distributed algorithm to solve the problem. The algorithm adheres to a communication topology described by a graph that is the same as the graph that describes the electrical network topology. We illustrate the operation of the algorithm, including its robustness against communication link failures, through several case studies involving 5-, 34-, and 123-bus power distribution systems. | 
    
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| AbstractList | This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the problem as an optimization program, where the objective is to minimize the losses in the network subject to constraints on bus voltage magnitudes, limits on active and reactive power injections, transmission line thermal limits and losses. We provide sufficient conditions under which the optimization problem can be solved via its convex relaxation. Using data from existing networks, we show that these sufficient conditions are expected to be satisfied by most networks. We also provide an efficient distributed algorithm to solve the problem. The algorithm adheres to a communication topology described by a graph that is the same as the graph that describes the electrical network topology. We illustrate the operation of the algorithm, including its robustness against communication link failures, through several case studies involving 5-, 34-, and 123-bus power distribution systems. | 
    
| Author | Lam, Albert Y. S. Dominguez-Garcia, Alejandro D. Tse, David Baosen Zhang  | 
    
| Author_xml | – sequence: 1 surname: Baosen Zhang fullname: Baosen Zhang email: zhangbao@stanford.edu organization: Dept. of Civil & Environ. Eng., Stanford Univ., Stanford, CA, USA – sequence: 2 givenname: Albert Y. S. surname: Lam fullname: Lam, Albert Y. S. email: albertlam@ieee.org organization: Dept. of Comput. Sci., Hong Kong Baptist Univ., Hong Kong, China – sequence: 3 givenname: Alejandro D. surname: Dominguez-Garcia fullname: Dominguez-Garcia, Alejandro D. email: aledan@illinois.edu organization: Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA – sequence: 4 givenname: David surname: Tse fullname: Tse, David email: dntse@stanford.edu organization: Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA  | 
    
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| SubjectTerms | Distributed algorithms distribution network management Network topology optimal power flow Optimization Power transmission lines Reactive power Topology Voltage control voltage support  | 
    
| Title | An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems | 
    
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