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Transformer cleaner energy

IP.com Disclosure Number: IPCOM000249052D
Publication Date: 2017-Jan-31
Document File: 3 page(s) / 121K

Publishing Venue

The IP.com Prior Art Database

Related People

Rengifo Fredy: AUTHOR

Abstract

The transformer cleaner energy improves energy quality and reduce energy losses during the operation system. A pass filter is provided on a transformer output that supply energy to a variable speed drive (or any load type). The pass filter eliminates harmonics of positive and negative sequence above the third order (5th, 7th, 11th, 13th, 17th, 19th, 23rd, 29th, etc.). The invention improves the quality of energy inside the transformer.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 53% of the total text.

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© Copyright [2017] ABB. All rights reserved.

TRANSFORMER CLEANER ENERGY

The trend towards the use of power electronics in the areas of rotation and torque

control for rotating machinery is a fact of technological development in our days. The

application of the power electronics is present in all productive fields. Although this is

very beneficial for online production in e.g. the fields of oil extraction and mining among

others, it also brings problems with pollution in the network, loss of efficiency and

significant circulation of harmonic components with their impact in the system. At the

end of the day the energy quality is poor and the additional period costs are not

negligible. A transformer connected to such a network must supply the rated power plus

the harmonics energy. The level of the Total Harmonic Distortion (THD) or the k-factor

increase the additional losses inside the transformer, the cooling area and the quantity

of oil.

The transformer cleaner energy is an effort to improve energy quality and reduce

energy losses during the operation system. This new concept seeks to install a pass

filter adapted to the transformer output that supply energy to a variable speed drive (or

any load type). The pass filter eliminates harmonics of positive and negative sequence

above the third order (5th, 7th, 11th, 13th, 17th, 19th, 23rd, 29th, etc.), consequently

reducing THD.

The invention improves the quality of energy inside the transformer.

This solution needs few additional components. The solution may be tuned to avoid the

resonance phenomenon. The solution may be designed for operation at any load level.

The solution may offer loudness and high efficiency (very low losses).

Others benefits of the solution are:

- A less polluted environment (low harmonic profile) - low THD.

- Improved level of chargeability o...