Results 51 to 60 of about 4,007,957 (221)

Research on load frequency control of multi‐microgrids in an isolated system based on the multi‐agent soft actor‐critic algorithm

IET Renewable Power Generation
Load variation, distributed power output uncertainty and multi‐microgrids network complexity have brought great difficulties to the frequency stability of the whole microgrid.
Li Long Xie, Yonghui Li, Peixiao Fan, Li Wan, Kanjun Zhang, Jun Yang   +5 more
doaj   +1 more source

Shaping Energy Transitions: Sectoral Demand, Climate Risk Exposure, and Renewable Pathways in Sub‐Saharan Africa

Business Strategy and the Environment, EarlyView.
ABSTRACT Energy is a fundamental driver of economic growth, shaping productivity, industrialization, and long‐term economic resilience. In sub‐Saharan Africa (SSA), where energy access remains uneven and infrastructure is underdeveloped, understanding sector‐specific energy demand is essential for designing sustainable energy strategies.
Michael Appiah, Emmanuel Baffour Gyau, Genanew Bekele Worku, Simplice A. Asongu   +3 more
wiley   +1 more source

State-Space Modeling and Stability Analysis of MMC-Based Distributed Generation Units in Islanded Microgrids

Mehran University Research Journal of Engineering and Technology
The study aims to incorporate Modular Multilevel Converters (MMCs) into islanded microgrids that are now dependent upon off-grid energy systems. As more renewable power sources are integrated into power microgrids, such as solar and wind power, the ...
Saeed Ahmad Rana, Haroon Rasheed
doaj   +1 more source

Novel Droop Control of Battery Energy Storage Systems Based on Battery Degradation Cost in Islanded DC Microgrids

IEEE Access, 2020
This paper presents a new droop control method to reduce battery degradation costs in islanded direct current (DC) microgrids for multiple battery energy storage systems (BESSs).
Jin-Oh Lee, Yun-Su Kim, Tae-Han Kim, Seung-Il Moon   +3 more
doaj   +1 more source

A Paradox Perspective on Business Model Innovation in Sustainability‐Oriented Industries: A Longitudinal Case Study in the Energy Sector

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines how Business Model Innovation (BMI) unfolds in sustainability‐oriented industries, where institutional complexity, technological interdependence, and environmental imperatives generate persistent sustainability‐related paradoxical tensions.
Pietro Rombolà, Claudia Franzè, Paolo Neirotti   +2 more
wiley   +1 more source

Transition Metal Compounds as Thermochromic Materials: Classification, Properties, Limitations, and Applications

EcoEnergy, EarlyView.
This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang, Shan Wang, Long Yuan, Ling Zuo, Hui Qi, Changmin Hou   +5 more
wiley   +1 more source

Secondary Voltage Control in a Hybrid Microgrid [PDF]

International Journal of Industrial Electronics, Control and Optimization, 2019
Compared to individual DC or AC microgrids, the Hybrid microgrids (HMGs) are more efficient and inexpensive due to eliminating of multiple DC-AC-DC conversions.
YousefReza Jafarian, Amin Karimi, Hassan Bevrani   +2 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, EarlyView.
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

Secondary Frequency Control of Islanded Microgrid Based on Deep Reinforcement Learning

Zhongguo dianli
With the large-scale integration of distributed generation into microgrids, the volatility of renewable energy generation and system random disturbances pose significant threats to the frequency stability and operational control of islanded microgrids ...
Li WANG, Yuxiang JIANG, Xiangjun ZENG, Bin ZHAO, Junhao LI   +4 more
doaj   +1 more source

Ambiguity‐Aware Receding‐Horizon Optimization of Wind‐Hybrid Energy Storage Systems Using Type‐3 Fuzzy Modeling for Multimarket Participation

Energy Science &Engineering, EarlyView.
A Type‐3 fuzzy ambiguity encoder converts rolling wind, price, reserve‐activation, and confidence features into central estimates and nested uncertainty bounds. These parameters are updated within a receding‐horizon MILP/MIQP that coordinates wind, battery, and supercapacitor capacity across day‐ahead and ancillary‐service markets.
Shurong Yan, Manwen Tian, Didar Yedilkhan, Nurkhat Zhakiyev, Aigul Adamova, Ardashir Mohammadzadeh   +5 more
wiley   +1 more source