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Utilization of Impedance Matching to Improve Damping Impedance Method-Based Phil Interface

Title: Utilization of Impedance Matching to Improve Damping Impedance Method-Based Phil Interface.
Name(s): Paran, Sanaz, author
Edrington, Chris S., professor directing thesis
Foo, Simon Y., committee member
Moss, Pedro L., committee member
Department of Electrical and Computer Engineering, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2013
Publisher: Florida State University
Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The emerging emphasis of power hardware in the loop (PHIL) as a cost effective de-risking and analysis tool has received focused attention and research from the power system/power electronic fields on this topic. Advantages of PHIL testing are safety, reduced costs, and the reliability assessment of the system. Testing and verification of the different power interfaces is an essential task when real hardware testing is desired. Using PHIL, hardware units can be interfaced with a software-simulated environment to verify proper functionality and assess system impact. Instability during high power applications is primarily from the power interface between simulation and the hardware under test (HUT). The goal of this study is to select an optimal power interface that will allow successful operation of PHIL. While other power interfaces exist, the DIM method provides additional operational features beyond conventional interface capabilities. Additionally, the DIM method has sparked the development of PHIL due to the increased operational stability and accuracy of the system simulation. The purpose of this thesis is to demonstrate a new method of testing the stability and accuracy of the power interface in PHIL. The HIL test bed, which was developed by the Energy Conversion and Integration Thrust at the Center for Advanced Power Systems, will be used to analyze and validate the anticipated benefits of the modified DIM method. In this thesis, the dynamics of a three-phase RL load directly coupled with a three-phase inverter are simulated on a dSPACE rapid prototyping control system environment in real-time. The cascaded converters (AC/DC-DC/AC) that are used in the HIL test bed provide bi-directional capability for generating applications and a larger power rating for alternative usage. The output voltage and current at the output of the inverter will then serve as a reference for reproducing the output resistor and inductor values. Subsequently, these values are sent back to the linking impedance in the real-time model to update the resistor and inductor values. Active measurements of the real load in hardware are expected to allow implementation of the full PHIL of the real time system simulation. In addition to increased research opportunities for this field, successful PHIL system operation is expected to allow for more detailed system studies of HIL from the fundamental modeling and simulation stage to full scale testing. This thesis will introduce the ideas behind PHIL and power interface technique and explain the process and necessary steps to obtaining objectives such as stable and accurate systems. It will also demonstrate the results and verification of simulation values for different power interface methods. The final goal of this thesis is to introduce this new idea of modified DIM method, provide results and verification of simulation/testing, and show that it is in fact obtainable and can prove to be a highly useful tool in the simulation and verification of power systems.
Identifier: FSU_migr_etd-7542 (IID)
Submitted Note: A Thesis submitted to the Department of Electrical and Computer Engineering in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Summer Semester, 2013.
Date of Defense: June 18, 2013.
Keywords: accuracy, damping impedance method, power hardware in the loop, power interface, stability
Bibliography Note: Includes bibliographical references.
Advisory Committee: Chris S. Edrington, Professor Directing Thesis; Simon Y. Foo, Committee Member; Pedro L. Moss, Committee Member.
Subject(s): Electrical engineering
Computer engineering
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Host Institution: FSU

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Paran, S. (2013). Utilization of Impedance Matching to Improve Damping Impedance Method-Based Phil Interface. Retrieved from