DocumentCode :
159198
Title :
Reliable generator islanding detection for industrial power consumers with on-site generation
Author :
Anne, RadhaKiranmaye ; Basha, Faridul Katha ; Palaniappan, Ramaswamy ; Oliver, Kent L. ; Thompson, Michael J.
Author_Institution :
Schweitzer Eng. Labs., Inc., Fairview Heights, IL, USA
fYear :
2014
fDate :
8-10 Sept. 2014
Firstpage :
289
Lastpage :
297
Abstract :
Large power consumers often have on-site generation. If the utility tie opens, it is essential to isolate the on-site generators to prevent generator equipment damage before the utility attempts to reclose in a possible out-of-synchronism condition. Typically, islanding detection schemes are used to detect this condition and disconnect on-site generation quickly, thereby allowing successful utility reclose. This paper introduces a reliable islanding detection solution that was proposed, implemented, and tested at a refinery in Texas. The facility houses two on-site generators and is interconnected to the utility via a looped system. A topology-based islanding detection scheme was originally installed at this facility but was later decommissioned because of difficulties in adapting to evolving topology changes. Following an undesirable event in the utility system that could have resulted in damage to the refinery on-site generator equipment, the refinery decided to implement an islanding detection scheme that is independent of system topology changes and only relies on local-area measurements. However, the dependability of a traditional local measurement-based scheme is vulnerable to the dynamic generation-load mismatch, making it possibly unreliable. This paper describes a solution using a redundant high-speed multiprinciple islanding detection scheme that incorporates a unique voting supervision logic to achieve security.
Keywords :
food processing industry; power generation reliability; power system interconnection; power system measurement; steam turbines; Texas; United States; dynamic generation-load mismatch; generator equipment damage; high-speed multiprinciple islanding detection; industrial power consumers; local area measurements; on-site generators; reliable generator islanding detection; topology-based islanding detection scheme; utility reclose; voting supervision logic; Frequency measurement; Generators; Impedance; Islanding; Relays; Substations; Topology; Generator islanding detection; local-area islanding detection; rate of change of frequency; refinery generators; wide-area islanding detection;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Petroleum and Chemical Industry Technical Conference (PCIC), 2014 IEEE
Conference_Location :
San Francisco, CA
ISSN :
0090-3507
Print_ISBN :
978-1-4799-3054-8
Type :
conf
DOI :
10.1109/PCICon.2014.6961894
Filename :
6961894
Link To Document :
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