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"Dynamic Electrical Circuit Modeling of a Proton Exchange Membrane Elec" by Md Biplob Hossain, Md Rabiul Islam et al.

Besides producing hydrogen from surplus renewables, electrolyzers can also provide grid ancillary services like enhancing the stability, resilience, and robustness of the power grid. The paper presents a novel electrical circuit model for a proton exchange membrane electrolyzer (PEMEL) that has been validated using experimental data from a 400W electrolyzer. To demonstrate its adaptive capability, the proposed 400W electrical model is scaled up to a 1 MW stack, and this system is validated by comparison to another report of 1 MW stack experimental results. Results show that the developed model reproduces very similar step responses to those reported for the 400W electrolyzer and 1 MW stack. In this paper, the developed model was then used to evaluate the grid frequency response against disturbance, possible resilience advantages from frequency control services, and frequency sensitivity analysis for a modified IEEE-13-bus-distribution-feeder system. These simulations indicate that PEME ....

Activation Voltage Drops , Adaptation Models , Ancillary Service , Ircuit Stability , Requency Regulation Service , Frequency Response , Ntegrated Circuit Modeling , Power System Dynamics , Power System Stability ,

"Power System Dynamic Performance Analysis Based on Frequency Control b" by Md Biplob Hossain, Md Rabiul Islam et al.

Intermittency of renewable energy sources can cause greater frequency variations and with no other intervention, the generation reserve capacity of a power system needs to be significantly increased to ensure frequency stability, resulting in increased costs. With appropriate control actions, proton exchange membrane electrolyzers (PEMELs) can be used to regulate power system frequency stability, but their adjustable demand-side response capabilities need to be investigated. This article first introduces the dynamic characteristics of the PEMEL stack to examine the impact of incorporating the control loop of the PEMEL stack into a single-area power system populated with solar photovoltaic units, taking into account the communication time lag during the control signal transfer process. The dynamic performance of the proposed power system and steady-state errors are then analyzed demonstrating contribution of the PEMEL stack to frequency regulation services effectively. Moreover, the fre ....

Demand Side Response , Frequency Control , Frequency Regulation , Umerical Stability , Power System Dynamics , Power System Stability , Proton Exchange Membrane Electrolyzers , Renewable Energy Sources ,

DNV expands HV power services business

DNV expands HV power services business
renews.biz - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from renews.biz Daily Mail and Mail on Sunday newspapers.

South Africa , Ditlev Engel , Energy Systems , Energy Transition Outlook , Power System Dynamics , Indian Subcontinent , Sub Saharan Africa ,

Climate Change AI Announces Winners of the 2021-2022 Innovation Grants Program

Pittsburgh, PA (PRWEB) May 04, 2022 Climate Change AI (CCAI) today formally announced the winners of its first Innovation Grants program. The thirteen ....

University Of California Irvine , United States , New South Wales , Scripps Institution Of Oceanography , Stanford University , San Diego , University Of California San Diego , Energy System Data For Policy , University Of California , Quadrature Climate Foundation , Istanbul Technical University , University Of Edinburgh , University Of Sydney , Microsoft Research , National Research Council , Machine Learning Powered Assessment University Of Edinburgh , It University Of Copenhagen , Machine Learning Carnegie Institution For Science , Institute Of Polar Sciences , Watson Ai Lab , Frequency Domain University Of Washington , Fiji Croplands University Of Western Australia , Ministry Of Agriculture , Breakthrough Energy , University Of The South Pacific , Conservation International ,