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5130: Method to Discriminate Between the Contributions of the Customer and the Power System to the Harmonic Disturbance

The objective of this project was to investigate methods of discriminating between contributions of the customer and contributions of the power system to harmonic disturbances. The project developed a harmonics measuring instrument, used it to gather real-world harmonics data, implemented several different proposed algorithms for determining harmonic direction, and tested those algorithms against real-world data.

May 1, 2008

Research

5143B-01: Customer Voltage Sag Power Conditioning

ABSTRACT: Power conditioning equipment can be applied at the individual loads that are sensitive to voltage sags and/or momentary interruptions. The power conditioning requirements depend on the types of voltage sags that can be expected and the possible durations of momentary interruptions. Utility mitigation techniques include power system design and various fault reduction methods. Customer options include constant voltage transformers, coil-lock devices, uninterruptible power supplies, and m

Mar 1, 2010

Research

5139: State of the Art Sensors Suitable for Distribution Automation Applications

Growing service quality expectations make the Distribution Automation (DA) processes increasingly imperative for power utilities and may trigger the next major step in the evolution of the distribution system. A successful distribution system management activity, such as DA, hinges on the information collected from the network using an integrated monitoring system. It enables real-time monitoring of grid conditions for distribution system operators and allows automatic reconfiguration of the net

May 1, 2009

Research

5122: Survey and Assessment of Techniques for Locating the Sources of Voltage Sag Disturbances

This report documents a comprehensive survey and assessment of the methods for locating the sources of voltage sag disturbances. Its objective is to determine the performance characteristics of the most promising sag source detection methods through independent theoretical analysis and case studies. The findings will serve as a guide for utility engineers to choose proper methods for voltage sag problem diagnosis. Based on the extensive survey conducted for this project, four most promising me

Mar 1, 2006

Research

5118: Defining Grades of Power Quality

This report provides a framework for defining various grades of power quality. It proposes measurable, quantifiable grades. Because grades are a short-hand method of communicating, they require a general consensus among all power quality stakeholders: utilities, power quality specialists and manufacturers, and end-users. To assist with this consensus, this report includes a detailed survey of world-wide power quality stakeholders.

Nov 1, 2004

Research

5143B-16: Planning a Reliable Variable Speed Drive Installation

Variable Frequency Drives - Brochure published by Manitoba Hydro and the Electrical Association of Manitoba

Jun 16, 2016

Research

5143B-14: Capacitor Bank Switching Transients

ABSTRACT: Utility capacitor banks are a key component for efficient distribution system design. Design considerations often include traditional power frequency issues such as voltage support, power factor correction, and released system capacity. However, future designs will also include power quality as a consideration as customer facilities continue the transition towards sensitive power electronic-based systems. The increasing dependence on sophisticated electronic controls and automated manu

Mar 1, 2010

Research

5159: Effective Collection and Management of Power Quality Data for Analysis and Detection of Incipient Distribution System Components Faults and Identification of their Locations

The objective of this project was to develop a practical application guide that provides a review of important methods for collecting, processing, and analyzing measured power quality data with a goal of identifying poor equipment performance and system insulation weaknesses. The report includes relevant standards-related information and representative waveforms, and case studies highlighting waveform identification and analysis methods. The report presents guidelines and strategies for utilitie

Mar 23, 2012 - May 15, 2013

Research

5143B-09: Introduction to Power Factor Correction

ABSTRACT: As electrical systems become more heavily loaded, power capacitor banks become essential to the reliable operation of the system. Capacitor banks improve voltage control, reduce current flow, increase system capacity, and reduce system losses by reducing reactive power flow. Generally for industrial customers, the application of power factor correction capacitor banks is motivated by the desire to save money by reducing their demand charges and power factor penalties. The application o

Mar 1, 2010

Research

5173: Electrical Energy Storage in Distribution Systems for Mitigation of Power Quality Issues

This report presents an overview of the state of the art and effectiveness of Energy Storage Systems (ESS) in mitigation of various power quality problems, such as, voltage sags/swells, voltage fluctuations in PV/wind farm connected distribution systems, voltage unbalance, voltage flicker, harmonics, momentary power interruptions, etc.Smart inverter functions are illustrated with applications. The importance of these functions in reducing the need of energy storage capacity for specific PQ mitig

May 20, 2016 - May 16, 2017

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