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Analysis of Volt/Var Optimization in a Radial Distribution Network with DER Penetration

Stokes, Dekwuan (2021) Analysis of Volt/Var Optimization in a Radial Distribution Network with DER Penetration. Master's Thesis, University of Pittsburgh. (Unpublished)

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The implementation of distributed energy resources (DERs) has provided the grid with many benefits. It has diversified the grid with new and advanced technology by adding energy generation to the electric power distribution sector. Although DERs make the grid more reliable and resilient, they can significantly alter the voltage profile and impact various voltage control devices. This causes the distribution system to experience unwanted losses, high maintenance costs, and reduced equipment lifetime. A solution to this is to implement an advanced distribution management system (ADMS). An ADMS is a software platform that manages grid assets, provides automated outage restoration, and optimizes the distribution grid’s performance. This thesis investigates a function of an ADMS called volt/var optimization (VVO) within a specific distribution system. VVO utilizes volt/var control (VVC) devices and the conservation voltage reduction (CVR) technique in order to maintain an optimal voltage across the system. In this thesis, the IEEE 13 Bus system is employed for testing. The optimal Volt-Var setpoint is obtained using the Lagrangian to create a Python algorithm that provides an optimal solution given multiple constraints. Integrated with Python is the open-source distribution simulation software, OpenDSS. OpenDSS has the ability to simulate the system, provide analysis and alter VVC devices to maintain the calculated optimal voltage and vars induced throughout the 13-bus system. Being able to analyze and simulate this system will allow for a more efficient and modernized grid.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Stokes, Dekwuandes154@pitt.edudes154
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Thesis AdvisorKerestes, Robertrjk39@pitt.edurjk39
Committee ChairKerestes, Robertrjk39@pitt.edurjk39
Committee ChairCan-Cimino,
Committee ChairGrainger, Brandonbmg10@pitt.edubmg10
Date: 13 June 2021
Date Type: Publication
Defense Date: 26 March 2021
Approval Date: 13 June 2021
Submission Date: 5 April 2021
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 55
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Electrical and Computer Engineering
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: Volt/Var, optimization, DER, OpenDSS, Python, distribution system, PMU, IEEE 13 Bus
Date Deposited: 13 Jun 2021 18:41
Last Modified: 13 Jun 2021 18:41


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