63,351 Results Found

Field-oriented control and direct torque control of induction-motor (IM) drives, and conventional finite-control-set model predictive control (FCS-MPC), all depend explicitly on machine parameters that drift with temperature and saturation, degrading...

An advanced power control and energy management strategy for an isolated hybrid microgrid system is presented in this paper. With the help of a battery energy storage system (BESS), the architecture combines a wind turbine (WT) emulator, photovoltaic...

The study presents a numerical analysis of a wave energy converter in the form of a rigid flap located adjacent to a vertical breakwater wall, intended for operation under the moderate wave climate conditions of the Baltic Sea. A simplified first-ord...

Biomass torrefaction represents a highly promising thermochemical pathway for upgrading low-density agricultural residues into high-value solid biofuels. However, optimizing reactor operations requires resolving the conflict between product energy en...

Natural hydrogen is a promising zero−carbon resource, but its small molecular size and high diffusivity make nuclear magnetic resonance (NMR) logging interpretation difficult. This study develops a pore−network and random−walk simul...

Battery engineers often work with repeated cycle-level monitoring signals that are related to ageing but are not direct capacity or resistance measurements. This paper studies how such a signal can be used to detect faster change and to decide whethe...

Coal-fired power generation remains a major source of anthropogenic greenhouse-gas emissions, motivating low-carbon co-firing strategies compatible with existing infrastructure. This study presents an integrated thermodynamic and environmental assess...

Traditional techno-economic assessments of zero-emission mobility frequently rely on static Total Cost of Ownership (TCO) models that fail to capture the concurrent evolution of economic and environmental parameters. To address this research gap, thi...

This paper proposes a bi-level game-theoretic framework for coordinating large-scale electric vehicles (EVs) in regional power grid deep peak regulation under a demand response mechanism. The upper-level model formulates a non-cooperative game among...

Smart grids with high renewable penetration are increasingly evaluated through long-horizon production simulation, but conventional decomposed simulation mainly reports energy balance and unit feasibility, while power-quality stress remains weakly qu...

Hydrogen is increasingly recognized as a strategic energy carrier in global decarbonization pathways, particularly for hard-to-abate sectors such as steel production, chemicals, long-distance transport, and seasonal energy storage. However, its clima...

Developing digital twins for legacy hydropower units is difficult when turbine documentation, calibrated performance data, and integrated measurements are incomplete. This study presents a Computational Fluid Dynamics (CFD)-assisted reconstruction wo...

This study develops a management-driven and interpretable framework for identifying the formation of scenario-derived accounting increments in coal-fired power plants. Based on real monthly operational and accounting data from a coal-fired power plan...

Continental mixed shale oil reservoirs are characterized by strong lithological heterogeneity, complex reservoir architecture, and highly variable hydraulic fracture propagation, making it difficult to simultaneously maximize hydrocarbon recovery and...

Under the dual-carbon strategy, green hydrogen as a zero-carbon fuel is rapidly expanding in engineering applications. However, the absence of gas radiation models specifically validated under high H₂O mole fraction, pure H₂ combustion conditions com...

Pumped storage hydropower (PSH), with its advantages of fast response and large-scale energy storage, has become a key means of enhancing power system flexibility. However, the time-varying nature of transmission line capacity may constrain the effec...

China considers the healthy and sustainable development of the natural gas market to be crucial for achieving carbon neutrality and has been actively reforming its natural gas market to optimize the energy and economic structure. While previous studi...

Sustainable energy transition is vital for the achievement of economic sustainability, environmental sustainability, and social inclusion. Hence, this paper explores the effect of ICTs, institutions, and per capita GDP on sustainable energy transitio...

Against the backdrop of the transition toward power systems with high shares of renewable energy and power electronics and the rapid growth of urban load, large receiving-end urban grids are fed by multiple line-commutated-converter HVDC (LCC-HVDC) l...

Frequency stability is becoming an increasingly critical issue in asynchronously interconnected (ASI) power systems, where DC interconnections inherently decouple frequency dynamics between asynchronous AC grids and conventional synchronous generator...

The synthesis of metal-free heterostructures is useful for the generation of sustainable green hydrogen production and is becoming more relevant in the last years. Among emerging materials, carbon nitride (CN) decorated with carbon dots (CDs) offers...

The co-pyrolysis of waste sawdust and non-recyclable polypropylene at 500 °C was investigated for low-cost adsorbent production and solid waste valorization in rural Thailand. Sustainability was evaluated through techno-economic analysis, gate-to...

Pumped hydro storage (PHS) systems, increasingly deployed in power systems with large shares of wind and solar generation, can play a key role in managing power system frequency. Variable-speed pumped hydro storage (VS-PHS) systems, in particular, ha...

Thin-layer extra-heavy oil reservoirs are commonly characterized by small oil-bearing thickness, high crude oil viscosity, and severe steam override. To address these problems, a multi-component thermal composite flooding method with branched horizon...

Tank vibrations of a power transformer, originating primarily from winding vibration and core vibration through mechanical coupling and fluid–structure interaction, are regarded as essential carrier signals for assessing the integrity of the wi...

Pumped-storage hydropower (PSH) remains the main grid-scale energy storage technology in Europe, yet much of the fleet is ageing and requires periodic verification against current geotechnical standards. The Dychów plant (88 MW, western Poland...

Nuclear power technology plays a vital role in the global low-carbon energy transition. Horizon scanning and research frontier detection of nuclear power technology help accurately grasp the development trend, thereby optimizing its strategic layout....

Photovoltaic (PV)–building systems are commonly assessed using aggregated energy indicators that obscure the structural diversity of energy flows. This study introduces an entropy-based approach for quantifying the operational structure of ener...

The injection of CO₂ into mature natural gas reservoirs is widely recognised for its potential to store carbon dioxide while simultaneously enhancing natural gas recovery. However, across all reservoir pressure and temperature ranges, CO₂ and natural...

Long-term energy system models often represent renewable energy technologies using aggregated potentials and average capacity factors, which may insufficiently reflect the spatial and technological heterogeneity of weather-dependent resources. This s...

Energy storage systems play a pivotal role in the green energy transition by integrating renewable energy generation and balancing supply and demand in modern power systems. Placement decisions are strategic and interact with other decisions, such as...

Perovskite solar cells (PSCs) have emerged as one of the most promising next-generation photovoltaic (PV) technologies due to their high power conversion efficiencies, low-temperature processing, and potential for low-cost manufacturing. Despite thes...

This paper introduces a hybrid building-integrated photovoltaic façade that brings together a 240 Wp mono PERC photovoltaic (PV) module and an electrically switchable Polymer Dispersed Liquid Crystal glazing unit within a single layered compon...

With the increasing penetration of renewable energy, frequency stability issues in new-type power systems have become increasingly prominent due to reduced system inertia and weakened primary frequency regulation capability. To address the insufficie...

High-efficiency and high-power-density point-of-load (POL) converters are critical for data center power supplies. Although hybrid resonant switched-capacitor (ReSC) converters can substantially reduce the volume of passive components, they often suf...

The Extrinsic Fiber Fabry–Perot Interferometer (EFPI) fiberoptic ultrasonic sensor can be used to detect partial discharge ultrasonic signals inside gas-insulated switchgear (GIS) and has various uses in pattern recognition research. Compared w...

The rapid expansion of decentralized photovoltaic (PV) systems is transforming electricity consumers into active market participants across Europe. While prosumer development has been extensively studied in Western Europe, the dynamics, constraints,...

Computational fluid dynamics provides detailed spatial distributions of physical fields in biomass boiler combustion, but the computational cost of each simulation limits its application in parametric studies and near-real-time workflows. This work i...

The medium- and low-voltage distribution network is a critical hub connecting the transmission grid and end-users, and its power supply reliability directly determines livelihood security and socio-economic operational efficiency. Typhoon-induced str...

Accurate forecasting of power production and consumption is essential for the efficient operation of smart energy grids, enabling stable energy exchange and grid reliability. However, the growing integration of photovoltaics (PVs) and electric vehicl...

With the advancement of global energy conservation and emission reduction, hydrogen-powered ships (HPSs) have received great attention. However, the current drainage volume of HPSs is generally small, and its operating load fluctuates greatly due to...

Shared energy storage (SES) in renewable energy bases can integrate reliability support, curtailed-energy accommodation, spot-market arbitrage, and frequency-regulation services, but unclear service boundaries and static depreciation may distort capa...

The deep coalbed methane in the SSL block is characterized by strong in situ stresses, elevated thermal conditions, and over-pressured reservoirs. These conditions lead to poor adaptability of vertical-well fracturing technology for CBM extraction. D...

Generator-side transient overvoltage may occur in DC 600 V AC–DC–AC railway power supply systems because switching-induced common-mode voltage generated by the front-end rectifier can propagate in reverse through cable distributed paramet...

Renewable energy technologies are increasingly recognized as essential solutions for mitigating energy insecurity and supporting sustainable development. Among solar thermal systems, parabolic trough collectors (PTCs) have attracted significant atten...

Turbocharger compressor geometry affects the pressure ratio, flow range, and efficiency distribution of the compressor map, but the influence pathway from compressor geometry to engine fuel economy and emissions trade-off has not been sufficiently qu...

Traditional fossil-fuel-based industries, including electric power generation and petrochemical production, are plagued by their inherent carbon dioxide emissions. Current efforts to minimize CO₂ discharge tend to focus on costly capture and sequestr...

To address the limitations of conventional inverse-time protection in low-voltage DC (LVDC) microgrids operating under both grid-connected and islanded modes, where adaptability is insufficient and rapidity and selectivity are difficult to achieve si...

The power density of modern high-power integrated processors keeps rising rapidly. Among them, chiplet-based high-power AI accelerators exhibit local peak heat flux exceeding 1 kW/cm², which leads to concentrated hotspots, severe internal temperature...

Existing DG allocation studies commonly rely on static or balanced feeder assumptions, leaving two practical issues insufficiently addressed: the hourly mismatch between renewable outputs and feeder demands and diesel-backup phase-imbalance safety in...