Results 11 to 20 of about 1,548,936 (214)

Study on Quantitative Evaluation Index of Power System Frequency Response Capability [PDF]

open access: yesEnergies, 2022
Frequency stability is an important factor for the safety and stability of the power system operation. In a traditional power system, the operation stability is ensured by the inertia response, primary frequency modulation, and secondary frequency ...
Cheng Chi, Hai Zhao, Jiahang Han
doaj   +2 more sources

Optimal generation mix for frequency response adequacy in future power system

open access: yesEnergy and Built Environment, 2021
Strict enforcement of government policies to integrate high generation share from renewable energy sources (RES) like wind and PV would create inevitable operational challenges for the utilities to deliver Frequency Response (FR) services.
Vivek Prakash   +2 more
doaj   +1 more source

Power Reserve from Photovoltaics for Improving Frequency Response in the Isolated System

open access: yesEnergies, 2023
Appropriate frequency response is an issue of great importance in power system management, especially in an islanded one. An energy-based method for assessing a system’s response, which is needed to prevent under frequency load shedding (UFLS), is ...
Olga Poliak, Doron Shmilovitz
doaj   +1 more source

STEP RESPONSE AND FREQUENCY RESPONSE OF AN AIR CONDITIONING SYSTEM [PDF]

open access: yesProceeding of International Heat Transfer Conference 6, 1978
A system of induction units of an existing air conditioning system has been analyzed with respect to its dynamic properties. Time constants were calculated and measured by analogue models. Comparison with measurements at the installation itself showed a reasonable agreement. Frequency responses were studied in the same way.
Crommelin, R.D., Jackman, P.J.
openaire   +1 more source

System-wide inertial response from fixed speed and variable speed wind turbines [PDF]

open access: yes, 2011
IEEE PES 2011 General Meeting, Detroit, Michigan, USA, July 24-28, 2011As wind penetration levels on power systems increase worldwide, the dynamic characteristics of these systems are changing due to the displacement of synchronous generation. One issue,
Lisa Ruttledge   +3 more
core   +2 more sources

Using electric vehicle fleet as responsive demand for power system frequency support [PDF]

open access: yes, 2013
Based on conventional car driving patterns, it has been recognized that typically a car remains stationary for 95% of the time, only being driven on the road for the remaining 5% of that time on average.
Lei Wu   +7 more
core   +1 more source

Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]

open access: yes, 2006
In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Jorge Ramirez   +3 more
core   +1 more source

Optimum frequency response with decentralized drivers in power system

open access: yesIET Generation, Transmission & Distribution, 2023
This document presents a novel methodology to optimize the power system frequency response based on the implementation of decentralized controllers. The proposed method focuses on the control of the internal rotor angle in the selected generator, which ...
Diego Maldonado   +4 more
doaj   +1 more source

FREQUENCY RESPONSE FUNCTION STATISTICS OF DIFFUSE SYSTEMS

open access: yesInter-Noise 2022, 2023
Vibro-acoustic analysis at high frequencies is challenging due to a large sensitivity to spatial variations and short acoustical wavelengths, rendering deterministic methods expensive. At these frequencies, the wave field is usually assumed diffuse. A realization of a diffuse field can be obtained considering that the mode shapes of the system are ...
Van hoorickx, cedric, Reynders, Edwin
openaire   +2 more sources

Frequency Response of PV Inverters Toward High Renewable Penetrated Distribution Networks [PDF]

open access: yes, 2022
Substantial usage of electronic-based renewable energy resources has completely changed the dynamic behaviours and response time of power networks, which are now fundamentally different from traditional power networks dominated by Synchronous Generators (
Eghbal, Daniel   +5 more
core   +1 more source

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