Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology

The tie-line bias control (TBC) method has been widely used in the load frequency control (LFC) of multi-area interconnected systems. However, it should be questioned whether the conventional TBC can still apply to LFC when considering the complication of structures of power systems. LFC, in essence...

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Main Authors: Chunyu Chen, Kaifeng Zhang, Kun Yuan, Xianliang Teng
Format: Article
Language:English
Published: MDPI AG 2017-01-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/10/1/78
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author Chunyu Chen
Kaifeng Zhang
Kun Yuan
Xianliang Teng
author_facet Chunyu Chen
Kaifeng Zhang
Kun Yuan
Xianliang Teng
author_sort Chunyu Chen
collection DOAJ
description The tie-line bias control (TBC) method has been widely used in the load frequency control (LFC) of multi-area interconnected systems. However, it should be questioned whether the conventional TBC can still apply to LFC when considering the complication of structures of power systems. LFC, in essence, is to stabilize system frequency/tie-line power by controlling controlled outputs’ area control error (ACE). In this paper, relations between LFC control variables and controlled outputs are expressed as a system of equations, based on which an exemplary ring network is studied. Sufficient and necessary conditions for TBC applicability is presented, and a novel LFC mode is proposed for a general ring network where TBC cannot work. Finally, TBC applicability to multi-area systems with general topology is studied, and a general LFC mode is proposed for systems where TBC is not definitely applicable, thus rendering routines that may guide LFC design of future power systems with more complex topologies.
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spelling doaj.art-b7fd660327814c1e94bb5bfef1b275422022-12-22T04:28:14ZengMDPI AGEnergies1996-10732017-01-011017810.3390/en10010078en10010078Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex TopologyChunyu Chen0Kaifeng Zhang1Kun Yuan2Xianliang Teng3Key Laboratory of Measurement and Control of Complex Systems of Engineering, Ministry of Education, School of Automation, Southeast University, Nanjing 210096, ChinaKey Laboratory of Measurement and Control of Complex Systems of Engineering, Ministry of Education, School of Automation, Southeast University, Nanjing 210096, ChinaKey Laboratory of Measurement and Control of Complex Systems of Engineering, Ministry of Education, School of Automation, Southeast University, Nanjing 210096, ChinaState Key Laboratory of Smart Grid Protection and Control, NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing 211106, ChinaThe tie-line bias control (TBC) method has been widely used in the load frequency control (LFC) of multi-area interconnected systems. However, it should be questioned whether the conventional TBC can still apply to LFC when considering the complication of structures of power systems. LFC, in essence, is to stabilize system frequency/tie-line power by controlling controlled outputs’ area control error (ACE). In this paper, relations between LFC control variables and controlled outputs are expressed as a system of equations, based on which an exemplary ring network is studied. Sufficient and necessary conditions for TBC applicability is presented, and a novel LFC mode is proposed for a general ring network where TBC cannot work. Finally, TBC applicability to multi-area systems with general topology is studied, and a general LFC mode is proposed for systems where TBC is not definitely applicable, thus rendering routines that may guide LFC design of future power systems with more complex topologies.http://www.mdpi.com/1996-1073/10/1/78load frequency controltie-line bias control (TBC) applicabilityring networktopology
spellingShingle Chunyu Chen
Kaifeng Zhang
Kun Yuan
Xianliang Teng
Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology
Energies
load frequency control
tie-line bias control (TBC) applicability
ring network
topology
title Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology
title_full Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology
title_fullStr Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology
title_full_unstemmed Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology
title_short Tie-Line Bias Control Applicability to Load Frequency Control for Multi-Area Interconnected Power Systems of Complex Topology
title_sort tie line bias control applicability to load frequency control for multi area interconnected power systems of complex topology
topic load frequency control
tie-line bias control (TBC) applicability
ring network
topology
url http://www.mdpi.com/1996-1073/10/1/78
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AT kaifengzhang tielinebiascontrolapplicabilitytoloadfrequencycontrolformultiareainterconnectedpowersystemsofcomplextopology
AT kunyuan tielinebiascontrolapplicabilitytoloadfrequencycontrolformultiareainterconnectedpowersystemsofcomplextopology
AT xianliangteng tielinebiascontrolapplicabilitytoloadfrequencycontrolformultiareainterconnectedpowersystemsofcomplextopology