Thesis
Development and integration of three phase unbalanced voltage stability index into multi-objective optimization for distribution system planning
Washington State University
Master of Science (MS), Washington State University
12/2015
Handle:
https://hdl.handle.net/2376/102459
Abstract
The electric distribution power systems in the United States have typically been designed to operate radially. With the increasing integration of renewable energies (small-scale generation), and microgrids, distribution systems are slowly moving towards meshed or loop systems for higher reliability. As the distributed generation is being incorporated into the meshed distribution networks, voltage stability will be a critical issue. The voltage stability studies are imperative in maintaining stable operating conditions. This thesis utilizes the three-phase current injection method, three-phase unbalanced continuation power flow (CPF), and voltage stability indices (VSI’s) for distribution systems planning studies. The voltage stability of distribution systems can be analyzed using the developed VSI. The results from the CPF program are used to validate the VSI and furthermore allow for voltage stability analysis. This VSI is integrated with a multi-objective problem for distribution systems that considers various mathematical equilibrium constraints and design issues regarding distributed generation penetration using price stability and voltage stability. Several different scenarios have been analyzed using a modified and expanded IEEE 13 bus test system to demonstrate the effectiveness of developed optimizations architecture including a quick voltage stability measurement. The optimization is focused on maximizing the penetration of distributed generation, maximizing the social benefit, and minimizing the cost in the system. These scenarios include distributed energy resources at different penetration levels. Results demonstrate the importance and usefulness of applying optimization techniques with voltage stability constraints for planning purposes. The results are validated by comparing the system generation and pricing with and without optimization.
Metrics
5 File views/ downloads
9 Record Views
Details
- Title
- Development and integration of three phase unbalanced voltage stability index into multi-objective optimization for distribution system planning
- Creators
- Leslie N. Corson
- Contributors
- Anurag K. Srivastava (Chair)Chen-Ching Liu (Committee Member)Ali Mehrizi-Sani (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Number of pages
- 124
- Identifiers
- 99900525080501842
- Language
- English
- Resource Type
- Thesis