Results 61 to 70 of about 21,810 (200)
Continuous commutation failure suppression strategy in hybrid multi-infeed HVDC transmission system
电力工程技术, 2022 For the wide application of high voltage direct current (HVDC) transmission engineering,the continuous commutation failure of line commutated converter HVDC (LCC-HVDC) has a seriously negative impact on the stable operation of the power system. Therefore,
ZHONG Mingming +4 more
doaj +1 more source
Impedance-compensated grid synchronisation for extending the stability range of weak grids with voltage source converters [PDF]
, 2016 This paper demonstrates how the range of stable power transfer in weak grids with voltage source converters (VSCs) can be extended by modifying the grid synchronisation mechanism of a conventional synchronous reference frame phase locked loop (PLL).
D'Arco, Salvatore +3 more
core +2 more sources
High Voltage, EarlyView.ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley +1 more source
An Improved Mixed AC/DC Power Flow Algorithm in Hybrid AC/DC Grids with MT-HVDC Systems
Applied Sciences, 2019 One of the major challenges on large-scale Multi-Terminal High Voltage Direct Current (MT-HVDC) systems is the steady-state interaction of the hybrid AC/DC grids to achieve an accurate Power Flow (PF) solution. In PF control of MT-HVDC systems, different
Fazel Mohammadi +2 more
doaj +1 more source
Optimal Control Design for Multiterminal HVDC [PDF]
, 2013 This thesis proposes an optimal-control based design for distributed frequency control in multi-terminal high voltage direct current (MTDC) systems.
de Courreges d'Ustou, Benoit
core
Test system requirements for modelling future power systems [PDF]
, 2010 This paper discusses the need for new test system models to be developed and made available to researchers. A number of features of such test systems are proposed.
Bell, K.R.W., Tleis, A.N.D.
core +1 more source
Planning of Grid‐Interactive Flexibility Resources Under Carbon‐Emission Constraints
IET Smart Energy Systems, EarlyView.High renewable penetration drives the transition of power system planning; this study finds that carbon pricing promotes photovoltaic expansion, whereas deep decarbonisation necessitates diverse technologies and enhanced cross‐regional transmission. ABSTRACT High renewable penetration and stringent decarbonisation targets are reshaping power system ...
Shichang Cui +6 more
wiley +1 more source
Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]
, 2017 This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert +4 more
core +3 more sources
A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies
Greenhouse Gases: Science and Technology, EarlyView.ABSTRACT Subsurface storage technologies (SSTs), including geological CO2 sequestration, underground hydrogen storage, compressed‑air energy storage and thermal energy storage, are emerging as a scalable route for industry to achieve the terawatt‑hour storage flexibility and permanent carbon removal that evolving energy systems demand.
Julien Mouli‐Castillo +2 more
wiley +1 more source
EnergiesWhen offshore wind farms are connected to a hydrogen plant with dedicated transmission lines, for example, high-voltage direct current, the fluctuation of wind speed will influence the efficiency of the alkaline electrolyzer and deteriorate the techno ...
Wei Feng +4 more
doaj +1 more source