English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The handling of weak networks with asymmetric loads and disturbances impliesthe accurate handling of the second-harmonic component that appears in anunbalanced network. This paper proposes a classic vector control approach usinga PI-based controller with superior decoupling capabilities for operation inweak networks with unbalanced phase voltages. A synchronization method for weakunbalanced networks is detailed, with dedicated dimensioning rules. The use ofa double-frame controller allows a current symmetry or controlled imbalance tobe forced for compensation of power oscillations by controlling the negativecurrent sequence. This paper also serves as a useful reminder of the proper wayto cancel the inherent coupling effect due to the transformation to thesynchronous rotating reference frame, and of basic considerations of therelationship between switching frequency and control bandwidth.

Double-Frame Current Control with a Multivariable PI Controller and Power Compensation forWeak Unbalanced Networks