Results 11 to 20 of about 2,857,626 (267)

The control processes and subjective well-being of Chinese teachers: Evidence of convergence with and divergence from the key propositions of the motivational theory of life-span development

Frontiers in Psychology, 2014
An analytical review of the motivational theory of life-span development reveals that this theory has undergone a series of elegant theoretical integrations. Its claim to universality nonetheless brings forth unresolved controversies. With the purpose of
Wan-Chi eWong, Yin eLi, Xiaoyan eSun, Huanu eXu   +3 more
doaj   +1 more source

Secondary control of islanded microgrid using robust finite time decentralized method based on adaptive fuzzy sliding mode controller

Systems Science & Control Engineering, 2021
Secondary voltage control of islanded microgrid is one of the main needs of microgrid hierarchical control from one perspective and the realization of stable smart grids from another aspect.
Jianhua Sun, Hai Gu, Masoud Taleb Ziabari, Hassan Mousavi   +3 more
doaj   +1 more source

Decentralized Optimized Integral Sliding Mode-Based Load Frequency Control for Interconnected Multi-Area Power Systems

IEEE Access, 2023
In this paper, a decentralized load frequency control (LFC) is proposed for the frequency regulation of multi-area power systems applying optimized integral sliding mode control (OISMC) scheme.
Hassan Haes Alhelou, Neelu Nagpal, Neelam Kassarwani, Pierluigi Siano   +3 more
doaj   +1 more source

Decentralized Power Management of DC Microgrid Based on Adaptive Droop Control With Constant Voltage Regulation

IEEE Access, 2022
An adaptive droop control with constant voltage regulation is proposed for the power and voltage management of a DC microgrid (DCMG) with multiple power sources, such as a utility grid (UG), a distributed generator (DG), an energy storage system (ESS ...
Al Faris Habibullah, Kyeong-Hwa Kim
doaj   +1 more source

Cost-Based Droop Scheme for Converters in Interconnected Hybrid Microgrids

IEEE Access, 2019
Hybrid microgrids are the future of the power system as they bring the advantages of ac and dc networks under a common roof. As the power system continues to expand, hybrid microgrids will be connected together for increased reliability.
Sarmad Majeed Malik, Yingyun Sun, Xin Ai, Zhengqi Chen, Kunyu Wang   +4 more
doaj   +1 more source

A Distributed Secondary Control Algorithm for Automatic Generation Control Considering EDP and Automatic Voltage Control in an AC Microgrid

Energies, 2018
This paper introduces a distributed secondary control algorithm for automatic generation control (AGC) and automatic voltage control (AVC), which aims at matching area generation to area load and minimizing the total generation cost in an alternating ...
Mi Dong, Li Li, Lina Wang, Dongran Song, Zhangjie Liu, Xiaoyu Tian, Zhengguo Li, Yinghua Wang   +7 more
doaj   +1 more source

A Review of Distributed Secondary Control Architectures in Islanded-Inverter-Based Microgrids

Energies, 2023
The increasing energy demand, the shortage of energy resources, and the environmental challenges faced by conventional power-generation systems are some of the ongoing challenges faced by modern power systems.
Omar F. Rodriguez-Martinez, Fabio Andrade, Cesar A. Vega-Penagos, Adriana C. Luna   +3 more
doaj   +1 more source

Optimization and Stabilization of Distributed Secondary Voltage Control with Time Delays and Packet Losses Using LMIs

Energies, 2023
The proposed hierarchical secondary voltage control is a spatially distributed control system using communication networks which are disturbed by both a time delays and packet data dropouts.
Allal El Moubarek Bouzid, Bogdan Marinescu, Florent Xavier, Guillaume Denis   +3 more
doaj   +1 more source

Wavelet analysis and consensus algorithm-based fault-tolerant control for smart grids

Frontiers in Energy Research, 2023
In this paper, the voltage and frequency regulation problems are investigated for smart grids under the influence of faults. To solve those problem, a wavelet analysis and consensus algorithm-based fault-tolerant control scheme is proposed. Specifically,
Yunlong Han
doaj   +1 more source

Distributed Secondary Control in Microgrids Using Synchronous Condenser for Voltage and Frequency Support

Energies, 2022
A high share of distributed energy resources (DERs) in power distribution grids has posed many challenges for system operation and control. Microgrid (MG) application with different distributed control approaches for DERs has been drawn a lot of ...
Tung Lam Nguyen, Ha Thi Nguyen, Yu Wang, Osama A. Mohammed, Emmanouil Anagnostou   +4 more
doaj   +1 more source