Results 71 to 80 of about 1,739,000 (209)

Dual Frequency Regulation in Pumping Mode in a Wind–Hydro Isolated System

Energies, 2018
Frequency control is one of the most critical tasks in isolated power systems, especially in high renewable penetration scenarios. This paper presents a new hydropower pumped-storage dual control strategy that combines variable-speed-driven pumps and ...
José Ignacio Sarasúa, Guillermo Martínez-Lucas, Carlos A. Platero, José Ángel Sánchez-Fernández   +3 more
doaj   +1 more source

Research on Displacement Prediction Model of Reservoir Slope Based on LRMA, LSTM, and GA‐BP

Engineering Reports, Volume 8, Issue 11, November 2026.
A comparison of LRMA, LSTM and GA‐BP for reservoir slope displacement prediction using nearly 500‐day monitoring data. GA‐BP presents the optimal prediction performance, LRMA has interpretable physical meaning, and LSTM is capable of nonlinear forecasting.
Wen‐Xian Xiang, Hui Xue, Yang‐Yang Su, Peng Cheng, Xu‐Dong Yang, Xiao‐Bo Zhang, Chang‐Qing Li   +6 more
wiley   +1 more source

Prototype Pumped-Storage Hydropower: Feasibility and Experimental Design

Purpose: To develop a prototype of a Pumped Storage Hydropower Plant (PSH) without a reversible pump-turbine, demonstrating its feasibility for small-scale renewable energy storage applications.
V. R. Doifode, S. P. Adhau
core   +1 more source

Development of a hybrid Pumped-storage Hydropower–photovoltaic complementary system and analysis of its complementarity characteristics

Scientific Reports
To enhance power system regulation capability and photovoltaic (PV) energy accommodation under high penetration of renewable energy, a hybrid complementary system composed of conventional hydropower units, reversible pumped-storage units, and a ...
Yongzhi Mei, Xiong Zhang, Yingyuan Ma, Guangtai Shi, Haigang Wen, Yuqing Zhang   +5 more
doaj   +1 more source

A PSO‐Optimized Multimodel Residual‐Correction Approach for MLR‐Based In Situ Stress Inversion

Engineering Reports, Volume 8, Issue 11, November 2026.
A PSO‐optimized multimodel fusion framework was developed to correct MLR‐based in situ stress inversion. The method significantly improved prediction accuracy and provided a more reliable regional stress field for underground powerhouse engineering. ABSTRACT Finite‐element‐based multivariate linear regression (MLR) can leave local discrepancies in an ...
Weibin Lin, Ziyang Cao, Xiong Xiong, Jinxin Zhang   +3 more
wiley   +1 more source

Analysis of the Flow Behavior and Pressure Fluctuation of a Pump Turbine with Splitter Blades in Part-Load Pump Mode

Energies
The internal flow of a pump turbine is unstable in part-load pump mode for small guide-vane openings, and the strong vibration caused by pressure pulsation is related to the safe and stable operation of the unit.
Wei Xiao, Shaocheng Ren, Liu Chen, Bin Yan, Yilin Zhu, Yexiang Xiao   +5 more
doaj   +1 more source

Optimal Lithium‐Ion Battery—Supercapacitor Energy Storage System Capacity for Off‐Grid Intermittent Renewable Energy Mini‐Grids

Energy Science &Engineering, Volume 14, Issue 11, Page 5144-5171, November 2026.
Deployment of an aging‐based controller during designing of optimal lithium‐ion battery—supercapacitor (LB‐Sc) hybrid energy storage system (HESS) capacity, in off‐grid IREMGs, improves performance of the LB and reduces its aging rate. Also, annualised cost of the LB‐Sc HESS improves by 33.15% in relation to optimal LB SESS.
Isaac Gwayi, Cuthbert Z. M. Kimambo, Sarah Paul Ayeng'o   +2 more
wiley   +1 more source

Rethinking Pumped Storage Hydropower in the European Alps: A Call for New Integrated Assessment Tools to Support the Energy Transition

Mountain Research and Development, 2016
The European Alps are well positioned to contribute significantly to the energy transition. In addition to sites with above-average potential for wind and solar power, the “water towers” of Europe provide flexible, low-carbon power generation as well as ...
Astrid Björnsen Gurung, Axel Borsdorf, Leopold Füreder, Felix Kienast, Peter Matt, Christoph Scheidegger, Lukas Schmocker, Massimiliano Zappa, Kathrin Volkart   +8 more
doaj   +1 more source

Calculating the Interconnection Limit from a Comprehensive Voltage Evaluation for Distribution Systems with Large Distributed Energy Resources

IEEJ Transactions on Electrical and Electronic Engineering, Volume 21, Issue 11, Page 1609-1622, November 2026.
Japan is pursuing power source decarbonization and is thus reducing fuel‐based thermal power generation while promoting renewable energy resource use. Given the expected power fluctuations, this transition will require novel voltage management and control methods.
Satoshi Uemura, Koushichi Nemoto, Yasuhiro Hayashi   +2 more
wiley   +1 more source

Life Cycle Assessment of Closed-Loop Pumped Storage Hydropower in the United States. [PDF]

Environ Sci Technol, 2023
Simon TR, Inman D, Hanes R, Avery G, Hettinger D, Heath G.   +5 more
europepmc   +1 more source