Company Filing History:

6 out of 862

Abb Technology Ag

Years Active: 1979-2013

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17 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 8519679 - Static var compensator apparatus (2013-08-27),

2. 8400119 - Static var compensator apparatus (2013-03-19),

3. 8374810 - Method and apparatus for calculating insertion indices for a modular multilevel converter (2013-02-12),

4. 8154896 - STATCOM system for providing reactive and/or active power to a power network (2012-04-10),

5. 8072192 - Auxiliary power supply with a coupling capacitor between a high voltage line and ground (2011-12-06),

6. 7986132 - Static var compensator apparatus (2011-07-26),

7. 6559561 - Method and a device for damping power oscillations in transmission lines (2003-05-06),

8. 6404656 - Control equipment for thyristor-controlled series capacitor equipment, and a method for control thereof (2002-06-11),

9. 6114841 - Method and device for compensation of reactive power (2000-09-05),

10. 5801459 - Control equipment for a series capacitor connected into an electric (1998-09-01),

11. 5583883 - Electric arc-furnace stabilization using voltage pulse injection (1996-12-10),

12. 5051684 - Three-phase voltage stiff convertor (1991-09-24),

13. 4431956 - Drive equipment (1984-02-14),

14. 4386396 - Self-commutated inverter (1983-05-31),

15. 4318167 - Electrical inverter with controllable output voltage (1982-03-02),

Title: The Innovations of Lennart Angquist

Introduction

Lennart Angquist is a notable inventor based in Enkoping, Sweden. He has made significant contributions to the field of electrical engineering, particularly in the development of static var compensators. With a total of 17 patents to his name, Angquist's work has had a lasting impact on power transmission technologies.

Latest Patents

One of Angquist's latest patents is a one-phase static var compensator apparatus. This apparatus includes a compensator string consisting of a first static var compensator connected serially to a thyristor valve. The compensator string is designed to be connected on its first end to one phase of a transmission grid with a rated voltage exceeding 69 kV. Additionally, the thyristor valve comprises a plurality of thyristors connected serially, allowing the compensator string to be directly connected to the transmission grid. A corresponding three-phase apparatus is also presented in his patent.

Career Highlights

Throughout his career, Angquist has worked with prominent companies in the industry, including ABB Technology AG and Asea Aktiebolag. His experience in these organizations has contributed to his expertise and innovation in electrical engineering.

Collaborations

Angquist has collaborated with several professionals in his field, including Lars Paulsson and Ake Petersson. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

Lennart Angquist's contributions to electrical engineering, particularly through his patents on static var compensators, demonstrate his innovative spirit and technical expertise. His work continues to influence the industry and pave the way for future advancements.

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