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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

This paper deals with the design of controllers for variable speed hydropower(VSHP) plants with the objective of optimize the plants' performance. Thecontrol objectives imply enabling fast responses to frequency deviations whilekeeping the electric and hydraulic variables within their constraints. A modelpredictive controller (MPC) was developed to coordinate the turbine controllerwith the virtual synchronous generator (VSG) control of the power electronicsconverter. The simulation results show that the VSG is able to deliver fastpower responses by utilizing the rotational energy of the turbine and thegenerator. The MPC controls the guide vane opening of the turbine to regain thenominal turbine rotational speed. If this is not possible due to theconstraints of the hydraulic system, the MPC adjusts the power output of theVSHP by changing the VSG power reference. The proposed control system allowsthe VSHP to provide fast frequency reserves (FFR).

Optimized Control of Variable Speed Hydropower for Provision of Fast Frequency Reserves