Case main image
Hjørring District Heating – world-class 30 MW multi-biofuel plant
Multi-biofuel district heating plant achieves 125% fuel utilization

The project

As a true multi-biofuel district heating plant, Hjørring has a wide range of applications in use. When specifying the new plant, the operations manager recognized the benefits of SynRM motors over permanent magnet motors (which can be difficult and expensive to repair), and that they have superior efficiency over IM motors. However, at that time, SynRM motors with super-premium efficiency class IE4 were not widely commercially available. It was difficult to find a partner that could supply a single drive platform to control the different motor technologies used with the wide range of applications at the plant.

The solution

The project chose a Danfoss customized AC-drive development solution over an off-the-shelf drive-motor package from a competing supplier.

Software development was an important part of the solution. Danfoss Drives developed and tested an algorithm which was customized to the SynRM motors at the plant. The algorithm enables the drive to adapt to the motor in under three seconds during commissioning.

A total of 18 Danfoss VLT® AutomationDrive FC 302 AC drives are installed at the plant, and all drives are installed with PROFIBUS and 24V DC backup options. Based on required performance, Danfoss dimensioned the AC drives to match the specified motors. Each drive was selected for the individual load and application – pump or fan.

Case image
Quote

We like Danfoss products and were not hesitant about committing to a development process. At the beginning of the project, it was quite difficult to find an IE4 motor. However, nowadays, it's already realistic to specify IE4 motors.

Gorm Gade Knudsen, Weiss
(performs project management, design and installation of combustion plants for biofuels)

The result

Making the most of the compatibility of the VLT® AutomationDrive FC 302 with different motor types, Hjørring is one of the few district heating plants in the world to achieve high efficiency, world-class performance with 125% fuel utilization and parallel 2022 emission targets. This is the ultimate multi-biofuel plant.

By using SynRM instead of PM motors, the district heating plant saves on maintenance costs and increases motor uptime, which helps them achieve a really impressive 7-year ROI.

A lot of operational, maintenance and training time has also been saved since all the drives have the same user interface even though they control different motor types (both IM and SynRM) and different drive sizes/applications. Also, having one drive brand and platform ensures a reduced spare parts inventory.

2 years

payback on IE4 SynRM motors by comparison with traditional IE2 motors operating at partial load

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News

2018

13

Sep

Conference

Technical Conference on the future development of #electrical machine and power #electronic technologies.

2018

13

Sep

News

Danfoss presents maritime #Cleantech in Helsinki accompanied by HRH Crown Princess Mary of Denmark & @JakobEllemann "There is huge potential in reducing CO2, NOx and Sulphur #emissions in the maritime sector," VP, @DanfossDrives@tsarvilinna.

2018

13

Sep

News

Back on the job after the holidays? Our #VLTdrives have been helping HVAC systems in #datacenters keep your server data safe and cool all summer. Find out how Danfoss addresses the trends and challenges of modern HVAC: http://ow.ly/RA5T30luxRJ
#ACdrives
#HVAC

2018

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2018

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Reducing energy consumption in #datacenters is a matter of good business sense and sustainability. You get the very best of both from VLT HVAC Drive FC 102, which joins an exclusive elite with endorsement by the World Alliance for Efficient Solutions. Discover more: http://ow.ly/nApK30luxBr #ACdrives #HVAC #1000solutions

2018

06

Jul

News, video

Dave Sage, Owner of Kildonan Energy in Canada, comments on over 20 years’ successful cooperation with Danfoss “we enjoy their ability to innovate and move with the market, and because they have found the perfect combination between product quality, innovation and price”. http://ow.ly/isFs30kPtJv #danfossdrives50

2018

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2018

15

Jun

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According to @IEA, the water sector accounted for 4% of global electricity consumption in 2014. That's why we need to discuss energy-neutral water supply systems. Join our own Mads Warming at the #ETtalks on June 15 to talk about #smart water supply #SaveTheDate #EngineeringTomorrow #SmartCities #FromTalkToAction

2018

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Solar heating plant reduces CO2 emissions by 15,700 tonnes annually

2018

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Jun

Case study

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2018

29

May

Case study

The fans of the Doha Metro achieve – maximum energy efficiency and reliability

2018

15

May

News, video

For 50 years, everyone at Danfoss has shared a passion for drives. Our employees are passionate about the work they do and are committed to help drive your success http://ow.ly/BFsO30kutRf #danfossdrives50 #ACdrives

2018

02

May

Article

To thrive in today’s marketplace we need to create innovative solutions that offer real added value and provide customers with a solid competitive edge. To enable us to develop, test, prove and demonstrate our innovative solutions, Danfoss has created a global network of Application Development Centers. Read more on our blog http://ow.ly/u39Q30jO9uj

2018

01

May

News, event

Prize-giving at #danfossDC18. Erwin Althof, R&D manager at Alfen accepts the Danfoss Drives Customer Innovation Award 2018. Danfoss #ACdrives are used in Alfen’s #energystorage system to convert battery power into power that can be used on the electricity grid.

2018

25

Apr

Press Release

Danfoss is ready with first aid for families under pressure

2018

25

Apr

Product News

Totally reliable air conditioning for Equinix server rooms

2018

05

Apr

Product News

VLT® Midi Drive optimizes efficiency in Brazilian biscuit factory

2018

28

Mar

Group News

Danfoss wins Judges’ Special Award at Pump Industry Awards

2018

20

Mar

Group News

Schneider Electric, Danfoss and Somfy join forces to create a Connectivity Ecosystem for residential, mid-size building and hotel markets

2018

08

Mar

Press Releases

Save energy and improve air quality by optimizing filter replacement

2018

06

Mar

Product News

Copenhagen Cityringen – Tight spaces made manageable

2018

02

Mar

Product News

VLT® DriveMotor FCM 106 joins the list of legacy drives

2018

01

Feb

Press Releases

Danfoss supports new EU transparency rules in the drinking water sector

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