Results 1 to 10 of about 7,891,124 (254)

Distributed secondary control of microgrids with unknown disturbances and non-linear dynamics

Frontiers in Energy Research, 2023
In this paper, the voltage and frequency regulation of microgrid with unknown disturbances and non-linear dynamics was studied. The disturbance observer was designed and the sliding mode control (SMC) method was used to realize the secondary regulation ...
Shunwei Hu, Shunwei Hu, Liping He, Haodong Zhao, Haodong Zhao, Huawei Liu, Huawei Liu, Xueqiang Liu, Jianlong Qiu, Jianlong Qiu   +9 more
doaj   +1 more source

Hierarchical frequency control strategy of doubly-fed induction diesel generator under emergency condition

Energy Reports, 2022
Natural disasters lead to the uncertain topological structure of the urban distribution network. It is difficult for the communication system to recover quickly, which brings great difficulties to restoring the power supply.
Zhichao Liu, Junlin Li, Chengxiong Mao, Dan Wang, Zhitao Guan, Cong Xie, Jingqi Li, Yuanzhuo Qi   +7 more
doaj   +1 more source

Transient Frequency Modeling and Characteristic Analysis of Virtual Synchronous Generator

Energies
The large-scale integration of renewable energy into power systems significantly alters their operational characteristics, reducing system inertia and posing challenges to transient frequency stability.
Zhou Su, Guoqing Yang, Lixiao Yao
doaj   +1 more source

Dynamic Power Flow Modeling Primary and Secondary Frequency Regulations

IEEE Access
In power systems, the steady-state operations following any disturbance can be assessed by means of time-domain simulations, which consider the dynamic of the system without simplifying hypotheses.
Roberto Benato, Giovanni Gardan, Francesco Sanniti   +2 more
doaj   +1 more source

On BESS Capacity Optimization of Hybrid Coal-Fired Generator and BESS Power Station for Secondary Frequency Regulation

IEEE Access
Integrating battery energy storage systems (BESS) into a coal-fired generator can enhance power systems’ secondary frequency regulation capability.
Xinsong Zhang, Ziyun Ma, Beiping Gu, Lurui Fang, Xiuyong Yu   +4 more
doaj   +1 more source

Quantifying the performance and compensation of secondary frequency regulation of pumped storage plants considering variable-speed operation

Frontiers in Energy Research
Aiming at the “net-zero carbon” target, a higher proportion of variable renewable energies (VREs) has been integrated into power grids, and pumped storage plants (PSPs) are crucial for guaranteeing the safe and stable operation of hybrid energy systems ...
Jingdan Chen, Weijia Yang, Yulan Li, Yiwen Liao, Yongguang Cheng   +4 more
doaj   +1 more source

Virtual Synchronous Generator Control Strategy Based on Shipborne Three-Phase Two-Level DC–AC Converters

Journal of Marine Science and Engineering
In response to the International Maritime Organization’s emission reduction targets, ship power systems are transitioning toward microgrid architectures with high renewable energy penetration.
Gufeng Jiang, Ling Yu, Min Chi, Hongxing Chen   +3 more
doaj   +1 more source

Hybrid Energy Storage Participation in Secondary Frequency Regulation Control Strategy Based on Hierarchical Adaptive Control

发电技术
ObjectivesWhen assisting the frequency regulation of the thermal power units, battery energy storage faces difficulties in coping with high-amplitude and high-frequency disturbances.
ZHANG Ping, DI Hongliang, HU Long, XUE Yangang, LIU Haitao   +4 more
doaj   +1 more source

Chance-Constrained Real-Time Dispatch with Renewable Uncertainty Based on Dynamic Load Flow

Energies, 2017
In this paper, a comprehensive real-time dispatch model considering renewable uncertainty based on dynamic load flow (DLF) is proposed. Through DLF, the primary and secondary frequency regulation amount caused by the variation of renewable energy as well
Pei Bie, Buhan Zhang, Hang Li, Yong Wang, Le Luan, Guoyan Chen, Guojun Lu   +6 more
doaj   +1 more source

Frequency Control Strategy for High-Penetration Renewable Power Systems with Voltage-Sensitive Flexible Load Clusters

Energies
The high penetration of renewable energy has posed significant challenges to frequency regulation, primarily due to the scarcity of traditional regulation resources in these regions.
Huanhuan Yang, He Huang, Jianxin Zhang, Tuo Jiang, Hongxuan Zhang, Zhe Zhang   +5 more
doaj   +1 more source