Networked Multi-Converter Power System Uncertainty Analysis: Formulation and Related Issues
Abstract
The goal of this study is to investigate the impact of uncertainties on networked multiconverterpower systems. Such systems are rel"atively new and evolving to various forms, some of which can be found on terrestrial based microgrids and/or shipboard powersystems"". The goal of the present work is to develop a technique(s) that determines operation limits, in the presence of uncertainties, of n""etwork controllers used (oranticipated to be used) to manage multiple converters in such environments. As our pastwork has shown," it is known that a host of converter controllers (proprietary in nature)are designed to be local without ample consideration of underlying coupling dependencies with other segments of the system (e.g through loading characteristicsand/or coupled inductors). It should be noted that our past work ignored the existence of uncertainties in such systems. One of the issues previously raised and" addressed are inherent cross-regulation behavior - when converter outputs, each regulated via feedback control affect each other s" outputs through their common bus and/or turns ratio of the adjacent transformer.The investigators propose a 3-year schedule to accomplish the objective of ~NetworkedMulti-Converter Power System Uncertainty Analysis: Formulation and Related Issues~.The tasks and subtasks to complete this are as follows:Task 1. Measurement analysis of uncertainty based networked multi-converter shipboard powersystem (15 months)Subtask 1.1 Definition/Formulation of measurement performance metric for test casepower system modelSubtask 1.2 Analysis of measurement performance metric through simulation of test casesystem modelSubtask 1.3 Determination of measurement performance metric limits for the given testsystemDeliverable: Report on measurement analysis of uncertainty based networked multi-convertershipboard power systemsTask 2. Model development for networked multi-converter shipboard power system setupsystems involving uncertainties (6 months)Subtask 2.1 Acquire and verify test-case shipboard network-controlled multi-converterpower system dataSubtask 2.2 Perform basic steady state and dynamic tests on test case system uncertaintymodelsSubtask 2.3 Characterize performance based on stochastic simulation of developedmodelsDeliverable: Report on basic operational performance of shipboard network-controlled multiconverterpower system test case in an uncertain environmentTask 3. Operational limit definition and determination of networked multi-converter shipboardpower systems in the presence of uncertainties (15 months)Subtask 3.1 Definition/Formulation of uncertainty based operational limits for test casepower system modelSubtask 3.2 Analysis of these operational limits through simulation of test case systemmodelSubtask 3.3 Determination of operational limits for the given test system
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 29, 2017
- Source ID
- N000141713000
Entities
People
- Chikaodinaka Nwankpa
Organizations
- Drexel University
- Office of Naval Research
- United States Navy