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HVDC Systems and Fault Protection

HVDC Systems and Fault Protection is a research topic within Electrical and Electronic Engineering. Science Explorer counts 29k research works in it since 1950. 13.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the design, operation, control, and applications of Modular Multilevel Converters (MMC) in High Voltage Direct Current (HVDC) systems. It covers topics such as circuit topologies, power transmission, control strategies, fault detection, and voltage control, with a specific emphasis on the integration of MMC in offshore wind farms.

  • Modular Multilevel Converters
  • HVDC Transmission
  • Power Electronics
  • Voltage Source Converters
  • Power Systems
  • Control Strategies
  • Circuit Topologies
  • Offshore Wind Farms
  • Fault Detection
  • Voltage Control
Research works
29k
fractional, since 1950
In the world top 10%
3.8k
per year above
Top-10% rate
13.2%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+46%
the tick is no change

Which countries lead HVDC Systems and Fault Protection research?

By volume, China and India publish the most (3.5k and 635 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 3.5k works
  2. 2 India 635 works
  3. 3 United States 556 works
  4. 4 United Kingdom 196 works
  5. 5 Germany 186 works
  6. 6 ?? 159 works
  7. 7 Iran 150 works
  8. 8 South Korea 147 works
  9. 9 Italy 135 works
  10. 10 Canada 135 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 60.7%India: 10.9%United States: 9.5%United Kingdom: 3.4%6 others listed: 15.6%61%largest
China3,547 · 60.7%India635 · 10.9%United States556 · 9.5%United Kingdom196 · 3.4%6 others listed912 · 15.6%

Shares of the rows listed above, not of the whole node.

Which institutions lead HVDC Systems and Fault Protection research?

By volume in 2022–2025, North China Electric Power University publishes the most HVDC Systems and Fault Protection research, followed by China Southern Power Grid (China) and State Grid Corporation of China (China).

Who are the leading researchers in HVDC Systems and Fault Protection?

The most-cited researchers publishing on HVDC Systems and Fault Protection include Frede Blaabjerg, José Rodríguez and Josep M. Guerrero.

  1. 1 Frede Blaabjerg Denmark 12k citations
  2. 2 José Rodríguez Chile 6.8k citations
  3. 3 Josep M. Guerrero Denmark 5.6k citations
  4. 4 Huan Liu Australia 4.9k citations
  5. 5 Marco Liserre Germany 4.6k citations
  6. 6 Remus Teodorescu Denmark 4.2k citations
  7. 7 Fang Zheng Peng United States 3.7k citations
  8. 8 Shi Xue Dou Australia 3.5k citations
  9. 9 T.Α. Lipo United States 3.5k citations
  10. 10 Z. Q. Zhu United Kingdom 3.4k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is HVDC Systems and Fault Protection research done?

The largest centres of HVDC Systems and Fault Protection research in 2022–2025 are Beijing (China), Guangzhou (China), Shanghai (China) and Wuhan (China). Among places with at least 20 works in it, it is an unusually large share of all research in Xi'an, Beijing and Yangpu.

Largest cities, 2022–2025

  1. 1 Beijing China 719 works
  2. 2 Guangzhou China 288 works
  3. 3 Shanghai China 267 works
  4. 4 Wuhan China 247 works
  5. 5 Nanjing China 221 works
  6. 6 Xi'an China 212 works
  7. 7 Chengdu China 150 works
  8. 8 Hangzhou China 143 works
  9. 9 Jinan China 118 works
  10. 10 Changsha China 107 works

Where it is the local speciality

  1. Xi'an23.3 works45×
  2. Beijing88.0 works29×
  3. YangpuCN · 32.3 works24×
  4. Palo AltoUS · 45.7 works19×
  5. AalborgDK · 59.6 works14×
← less than its size predictsmore →

Location quotient: how much more of its research is in HVDC Systems and Fault Protection than the world average.

See HVDC Systems and Fault Protection on the map

Where is the best place to study HVDC Systems and Fault Protection?

Among universities, judged by research, Aalborg University, Huazhong University of Science and Technology and Shandong University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%10%20%mean 11.23%fractional works in this node (log) →share in the world top 10% →Aalborg University: 60, 20.8%Huazhong University of Science and Technology: 129, 9.5%Shandong University: 94, 5.7%Indian Institute of Technology Roorkee: 40, 9.5%Xi'an Jiaotong University: 138, 5.3%Christian-Albrechts-Universität zu Kiel: 12, 15.2%Hunan University: 46, 7.0%King Fahd University of Petroleum and Minerals: 9, 23.0%University of Strathclyde: 26, 11.4%Southeast University: 79, 4.9%Aalborg UniversityHuazhong University …Indian Institute of …Shandong University
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 Aalborg UniversityDenmark 81.020.8%16.3×60 +149.6%
2 Huazhong University of Science and TechnologyChina 65.59.5%11.5×129 +114.3%
3 Shandong UniversityChina 62.65.7%11.1×94 +176.4%
4 Indian Institute of Technology RoorkeeIndia 61.29.5%12.4×40 +166.4%
5 Xi'an Jiaotong UniversityChina 60.55.3%12.0×138 +112.0%
6 Christian-Albrechts-Universität zu KielGermany 59.315.2%7.5×12 +761.9%
7 Hunan UniversityChina 59.17.0%9.4×46 +183.4%
8 King Fahd University of Petroleum and MineralsSaudi Arabia 59.123.0%3.8×9 +365.2%
9 University of StrathclydeUnited Kingdom 58.711.4%13.8×26 +63.6%
10 Southeast UniversityChina 58.04.9%8.3×79 +216.3%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is HVDC Systems and Fault Protection research growing?

Output in 2018–2022 was 46% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are HVDC Systems and Fault Protection.

19801990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.