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Power Hardware In The Loop Based Anti Islanding Evaluation And Demonstration

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Power Hardware In The Loop Based Anti Islanding Evaluation And Demonstration

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Author : Karl Schoder
language : en
Publisher:
Release Date : 2015

Power Hardware In The Loop Based Anti Islanding Evaluation And Demonstration written by Karl Schoder and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Hardware-in-the-loop simulation categories.

The National Renewable Energy Laboratory (NREL) teamed with Southern California Edison (SCE), Clean Power Research (CPR), Quanta Technology (QT), and Electrical Distribution Design (EDD) to conduct a U.S. Department of Energy (DOE) and California Public Utility Commission (CPUC) California Solar Initiative (CSI)-funded research project investigating the impacts of integrating high-penetration levels of photovoltaics (PV) onto the California distribution grid. One topic researched in the context of high-penetration PV integration onto the distribution system is the ability of PV inverters to (1) detect islanding conditions (i.e., when the distribution system to which the PV inverter is connected becomes disconnected from the utility power connection) and (2) disconnect from the islanded system within the time specified in the performance specifications outlined in IEEE Standard 1547. This condition may cause damage to other connected equipment due to insufficient power quality (e.g., over-and under-voltages) and may also be a safety hazard to personnel that may be working on feeder sections to restore service. NREL teamed with the Florida State University (FSU) Center for Advanced Power Systems (CAPS) to investigate a new way of testing PV inverters for IEEE Standard 1547 unintentional islanding performance specifications using power hardware-in-loop (PHIL) laboratory testing techniques.

Power Hardware In The Loop Based Anti Islanding Evaluation And Demonstration

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Author :
language : en
Publisher:
Release Date : 2015

Power Hardware In The Loop Based Anti Islanding Evaluation And Demonstration written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

A Hardware In The Loop Experimental Testbed For The Evaluation Of Power Grid Stability And Security

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Author : James Kollmer
language : en
Publisher:
Release Date : 2020

A Hardware In The Loop Experimental Testbed For The Evaluation Of Power Grid Stability And Security written by James Kollmer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.

This research presents the development of a hardware-in-the-loop testbed for a three-bus power grid interfaced with a simulated networked control system (NCS) for investigation of cyberattacks and their possible impacts on the power grid. The three-bus grid consists of two generator buses, configured as slack bus (constant voltage and angle) and PV bus (constant power and constant voltage), and a load bus (PQ bus). The synchronous generators are driven by dynamometers serving as prime movers, and the field circuits controlled by insulated gate bipolar junction transistors (IGBT). The load bus is comprised of resistors, capacitors, and inductors that are connected to the generator buses through transmission lines. The simulated NCS is implemented on an Opal-RT platform, which is a PC/FPGA based real-time simulator that can integrate hardware with software based simulations, commonly referred to as hardware-in-the-loop (HIL). In general, HIL setups have the advantage that physical elements under test interact in real time with a simulated model of a large scale system and provide a better insight of performance of both the physical system and the controller. In this HIL experimental setup, the data acquisition unit (DAQ), and the controller are both implemented on the Opal-RT platform. A baseline for the behavior of the three-bus system is first established by operating the generator under various load conditions for which the controller maintains the desired terminal voltage. Then various types of cyberattacks were initiated on the system that include bias attack, data attack, and Denial-of-Service (DoS) attacks. The closed loop generator control system maintained the stability of the system as well as the required bus voltages within a certain tolerance. With no attack prevention mechanism in place, the developed experimental platform provides a facility to observe and evaluate the impacts of various cyberattacks on a real physical microgrid.

Accuracy Evalaution Evaluation Of Power Hardware In The Loop Phil Simulation

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Author : Wei Ren
language : en
Publisher:
Release Date : 2007

Accuracy Evalaution Evaluation Of Power Hardware In The Loop Phil Simulation written by Wei Ren and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

This conclusion is significantly useful for the selection of the optimal interface algorithms and for the future design of advanced interface algorithms. Although the proposed method is derived based on linear system analysis, it is shown to be effective for many nonlinear systems also. Simulations and experiments are performed for the purpose of validation. Limitations of the method are also discussed. For cases where the proposed method fails to be effective, a simulation-only method is proposed and explained as the future work.

Hardware In The Loop Hil Simulations For Smart Grid Impact Studies Preprint

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Author :
language : en
Publisher:
Release Date : 2018

Hardware In The Loop Hil Simulations For Smart Grid Impact Studies Preprint written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.

Hardware-in-the-loop (HIL) simulation is increasingly employed in power engineering as more inverter-based generation and smart appliances are connected to the electric grid. HIL techniques allow for co-simulation of analytical models with actual devices whose complex behavior is computationally inefficient or difficult to capture. It also allows for testing of the behavior of these devices under adverse conditions that only occur rarely in the field, but that are important to evaluate. An overview of how HIL simulation has been used to date is provided. This paper further proposes that HIL simulation should play an important role in evaluating new control strategies, especially at the distribution level, that are being proposed to allow for continued affordable and reliable operation of the electric grid with the introduction of these new technologies. It presents a new capability that was developed to enable evaluation of interactions between residential loads and the smart grid: smart home hardware-in-the-loop. The paper includes results from an HIL simulation that incorporates multiple technologies and controls.

Systematic Characterization Of Power Hardware In The Loop Evaluation Platform Stability Preprint

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Author :
language : en
Publisher:
Release Date : 2019

Systematic Characterization Of Power Hardware In The Loop Evaluation Platform Stability Preprint written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.

This paper presents a systematic approach to characterize the stability of a power-hardware-in-the-loop (PHIL) platform, an important step in PHIL tests. Many existing works focus the stability assessments on the PHIL interface algorithm; however, this work considers all software and hardware subsystems that form the closed loop of the PHIL experiment and develops a complete closed-loop stability assessment. This assessment is developed in the context of a common framework that can be readily applied to other PHIL platforms. This paper presents methods for characterizing key PHIL subsystems toward obtaining transfer functions to be used for analysis. The systematic stability assessment approach is demonstrated for a case study involving PHIL testing of a solar inverter and validated using experimental data. assessment. This assessment is developed in the context of a common framework that can be readily applied to other PHIL platforms. This paper presents methods for characterizing key PHIL subsystems toward obtaining transfer functions to be used for analysis. The systematic stability assessment approach is demonstrated for a case study involving PHIL testing of a solar inverter and validated using experimental data.

Stability And Accuracy Enhancement Of Power Hardware In The Loop Simulation

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Author : Zhiwang Feng
language : en
Publisher:
Release Date : 2023

Stability And Accuracy Enhancement Of Power Hardware In The Loop Simulation written by Zhiwang Feng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.

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Modeling And Feedback Compensator Design For Power Hardware In The Loop System For Medium Voltage Grid Connected Power Converters Preprint

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Author :
language : en
Publisher:
Release Date : 2022

Modeling And Feedback Compensator Design For Power Hardware In The Loop System For Medium Voltage Grid Connected Power Converters Preprint written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.

Hardware-in-the-Loop (HIL) evaluation is a method in which the test subject is split into a physical part and a simulated part, and these parts are connected with interfaces to form a combined physical-numerical system. Power-hardware-in-the-loop (PHIL) systems, where actual hardware is connected to a real-time model may exhibit issues of instability, inaccuracy and errors when operating in closed-loop. The challenge of generating a PHIL setup is that, firstly, because of the limited dynamic response of the different parts of the system, the test results may be inaccurate, and secondly, because of the high frequency noise introduced by the sensors to the closed-loop system, it may be difficult to design a compensator for the real-time emulator response, while stabilizing the closed-loop system at the same time. In this paper, different parts of a PHIL system are characterized, and the feedback compensator system design is proposed for stable operation of the closed-loop PHIL system. The issues as observed in a PHIL system without any compensator is demonstrated using experimental results. The effectiveness of a 1st order phase lead compensator is validated.

Methods For Partitioning The System And Performance Evaluation In Power Hardware In The Loop Simulations

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Author : Xin Wu
language : en
Publisher:
Release Date : 2005

Methods For Partitioning The System And Performance Evaluation In Power Hardware In The Loop Simulations written by Xin Wu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Power electronics categories.

Power Hardware In The Loop Based Anti Islanding Evaluation And Demonstration

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