Ying Jiang-Häfner

USPTO Granted Patents = 18 (Patent Applications = 1)

EPO Patents = 17 (Patent Applications = 17)

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 40(Granted Patents)

Company Filing History:

Hitachi Energy Switzerland Ag

patents

6. 1 out of 127

Abb Power Grids Switzerland Ag

patents

Years Active: 2002-2022

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18 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 11476658 - Communication less control technique for hybrid HVDC (2022-10-18),

2. 11349384 - Energization of a converter including a mix of half-bridge and full-bridge submodules (2022-05-31),

3. 10931114 - Controlling a voltage source converter in a DC system (2021-02-23),

4. 10374412 - Method and arrangement for facilitating clearing of a pole fault and isolation of a faulted pole in a power transmission system (2019-08-06),

5. 10050551 - Arrangement, method and computer program product for limiting circulating currents (2018-08-14),

6. 9831865 - RC-IGBT switching pulse control (2017-11-28),

7. 9812982 - Method in, apparatus for, and interface arrangement between an alternating current power system and a direct current power system (2017-11-07),

8. 9379633 - HVDC system and method to control a voltage source converter in a HVDC system (2016-06-28),

9. 9312786 - Cells control in a multilevel converter (2016-04-12),

10. 8946917 - Method for controlling power flow within a wind park system, controller, computer program and computer program products (2015-02-03),

11. 8779730 - Capacitor discharge in a cell based voltage source converter (2014-07-15),

12. 8767422 - Interface arrangement between AC and DC systems using grounding switch (2014-07-01),

13. 8760888 - HVDC system and method to control a voltage source converter in a HVDC system (2014-06-24),

14. 8542505 - Precision switching for carrier based PWM (2013-09-24),

15. 8305778 - Method and system to influence the power generation of an adjustable speed generator (2012-11-06),

Title: The Innovative Journey of Ying Jiang-Häfner

Introduction

Ying Jiang-Häfner, a distinguished inventor based in Ludvika, Sweden, has made significant contributions to the field of electrical engineering and power systems. With a portfolio of 14 patents to his name, he is recognized for his innovative approaches in high voltage direct current (HVDC) technologies.

Latest Patents

Among his latest inventions, Jiang-Häfner has developed advanced techniques such as the "Communication less control technique for hybrid HVDC". This patent describes a first converter station as part of a high voltage direct current transmission system, which efficiently monitors DC current and voltage, enabling detection of phase-to-ground faults. His other recent patent involves "Energization of a converter including a mix of half-bridge and full-bridge submodules". This innovation details methods for energizing converters using a combination of half-bridge and full-bridge cells, optimizing the charging process to enhance the operation of converter stations.

Career Highlights

Jiang-Häfner has a career marked by notable experiences at leading companies in the industry, including ABB Technology AG and ABB Schweiz AG, where he honed his expertise in power technologies and systems. His work has greatly influenced the development of HVDC systems, positioning him as a key figure in this rapidly advancing field.

Collaborations

In addition to his significant achievements, Jiang-Häfner has collaborated with notable professionals in his industry, including colleagues Lars Döfnäs and Roland Siljeström. These collaborations have further propelled his innovative projects and have fostered a network of talented individuals dedicated to pushing the boundaries of electrical engineering.

Conclusion

Ying Jiang-Häfner's dedication to innovation and his substantial patent portfolio reflect his influence on the field of high voltage direct current technologies. His contributions continue to shape the future of power systems, making him a remarkable inventor in the modern technological landscape.

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1 patent pending:

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17 patents (EPO):

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17 patents pending (EPO):

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