Class information for:
Level 1: POWER QUALITY//POWER QUALITY PQ//POWER QUALITY DISTURBANCES

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
26 4 ENGINEERING, ELECTRICAL & ELECTRONIC//ELECT ENGN//IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 322555
71 3       IEEE TRANSACTIONS ON POWER SYSTEMS//ENGINEERING, ELECTRICAL & ELECTRONIC//IEEE TRANSACTIONS ON POWER ELECTRONICS 87614
1051 2             POWER QUALITY//IEEE TRANSACTIONS ON POWER DELIVERY//FAULT LOCATION 10354
5207 1                   POWER QUALITY//POWER QUALITY PQ//POWER QUALITY DISTURBANCES 1687

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 POWER QUALITY authKW 1300132 22% 18% 378
2 POWER QUALITY PQ authKW 594283 5% 35% 92
3 POWER QUALITY DISTURBANCES authKW 576415 2% 86% 36
4 S TRANSFORM authKW 396947 4% 31% 69
5 INTERHARMONICS authKW 345352 3% 43% 43
6 HARMONIC ESTIMATION authKW 257425 1% 66% 21
7 IEEE TRANSACTIONS ON POWER DELIVERY journal 248616 19% 4% 324
8 POWER SYSTEM HARMONICS authKW 236130 3% 23% 56
9 POWER QUALITY EVENTS authKW 224165 1% 100% 12
10 FREQUENCY ESTIMATION authKW 222101 5% 13% 91

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Engineering, Electrical & Electronic 36191 84% 0% 1415
2 Instruments & Instrumentation 7274 21% 0% 356
3 Engineering, General 1015 6% 0% 108
4 Computer Science, Artificial Intelligence 623 6% 0% 95
5 Automation & Control Systems 514 4% 0% 68
6 Computer Science, Interdisciplinary Applications 110 3% 0% 48
7 Energy & Fuels 53 3% 0% 47
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 33 1% 0% 13
9 Computer Science, Hardware & Architecture 22 1% 0% 16
10 Computer Science, Information Systems 20 2% 0% 26

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ELECT AREA 119552 0% 80% 8
2 GRP TIC168 93402 0% 100% 5
3 SHIP ELECT POWER ENGN 72043 1% 43% 9
4 AREA ELECT 59760 1% 27% 12
5 KATEDRA ELEKTROENERGETYKI OKRETOWEJ 56041 0% 100% 3
6 EPSA 52652 1% 15% 19
7 COPPE POLI 39551 0% 35% 6
8 EMC ON SITE 37361 0% 100% 2
9 EPS ELECT RUMENTAT GRP 37361 0% 100% 2
10 PISTON ENGINES DESIGN 37361 0% 100% 2

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE TRANSACTIONS ON POWER DELIVERY 248616 19% 4% 324
2 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 90468 12% 2% 210
3 ELECTRIC POWER SYSTEMS RESEARCH 51953 7% 2% 114
4 INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS 25874 5% 2% 79
5 IET GENERATION TRANSMISSION & DISTRIBUTION 25112 3% 3% 53
6 IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION 21050 2% 3% 38
7 EUROPEAN TRANSACTIONS ON ELECTRICAL POWER 18562 2% 3% 31
8 MEASUREMENT 15204 4% 1% 60
9 INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS 11711 1% 3% 21
10 METROLOGY AND MEASUREMENT SYSTEMS 9572 1% 3% 18

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 POWER QUALITY 1300132 22% 18% 378 Search POWER+QUALITY Search POWER+QUALITY
2 POWER QUALITY PQ 594283 5% 35% 92 Search POWER+QUALITY+PQ Search POWER+QUALITY+PQ
3 POWER QUALITY DISTURBANCES 576415 2% 86% 36 Search POWER+QUALITY+DISTURBANCES Search POWER+QUALITY+DISTURBANCES
4 S TRANSFORM 396947 4% 31% 69 Search S+TRANSFORM Search S+TRANSFORM
5 INTERHARMONICS 345352 3% 43% 43 Search INTERHARMONICS Search INTERHARMONICS
6 HARMONIC ESTIMATION 257425 1% 66% 21 Search HARMONIC+ESTIMATION Search HARMONIC+ESTIMATION
7 POWER SYSTEM HARMONICS 236130 3% 23% 56 Search POWER+SYSTEM+HARMONICS Search POWER+SYSTEM+HARMONICS
8 POWER QUALITY EVENTS 224165 1% 100% 12 Search POWER+QUALITY+EVENTS Search POWER+QUALITY+EVENTS
9 FREQUENCY ESTIMATION 222101 5% 13% 91 Search FREQUENCY+ESTIMATION Search FREQUENCY+ESTIMATION
10 DISTURBANCE CLASSIFICATION 188359 1% 92% 11 Search DISTURBANCE+CLASSIFICATION Search DISTURBANCE+CLASSIFICATION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 21366 VOLTAGE FLICKER//FLICKERMETER//ARC FURNACE
2 34466 CAPACITOR SWITCHING//SHUNT CAPACITOR BANKS//CAPACITOR SWITCHING TRANSIENTS
3 14363 HARMONICS//POWER SYSTEM HARMONICS//IEEE TRANSACTIONS ON POWER DELIVERY
4 2945 ACTIVE POWER FILTER//ACTIVE FILTERS//POWER QUALITY
5 12462 VOLTAGE SAG//DYNAMIC VOLTAGE RESTORER DVR//DYNAMIC VOLTAGE RESTORER
6 9618 ADC TESTING//FREQUENCY ESTIMATION//NONCOHERENT SAMPLING
7 22958 PRONY ANALYSIS//ELECTROMECHANICAL MODES//ELECTROMECHANICAL MODE IDENTIFICATION
8 2499 FAULT LOCATION//DISTANCE RELAY//DISTANCE PROTECTION
9 21752 ISLANDING DETECTION//ISLANDING//NON DETECTION ZONE
10 9377 PHASOR MEASUREMENT UNIT//STATE ESTIMATION//POWER SYSTEM STATE ESTIMATION

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