Results 51 to 60 of about 256,762 (170)

Coordinated Suppression Method of Fault Current for DC Grid with Novel Dissipative Resistors Topology

CSEE Journal of Power and Energy Systems
A DC grid based on half-bridge modular multilevel converters (HB-MMC) is a feasible means to realize the friendly grid connection of renewable energy.
Shouqi Jiang, Huanyu Zhao, Guoqing Li, Yechun Xin, Lixin Wang, Weiru Wang   +5 more
doaj   +1 more source

Interactions between two grid PMSG wind turbines: A perspective on subsynchronous oscillations

International Journal of Electrical Power & Energy Systems
Subsynchronous oscillation (SSO) in grid-connected permanent magnet synchronous generators (PMSGs) is a complex dynamic behavior influenced by multiple factors.
Cheng Yang, Gangui Yan, Yupeng Wang, Lin Yue, Fu Guo, Mingsen Shi   +5 more
doaj   +1 more source

Peer-to-peer energy trading with energy trading consistency in interconnected multi-energy microgrids: A multi-agent deep reinforcement learning approach

International Journal of Electrical Power & Energy Systems
Multi-energy microgrid technology is an essential for addressing the diversification of energy demand and local consumption of renewable energy sources.
Yang Cui, Yang Xu, Yijian Wang, Yuting Zhao, Han Zhu, Dingran Cheng   +5 more
doaj   +1 more source

Analysis and suppression of high-frequency oscillation in wind farm-MMC-HVDC interconnected system considering distribution characteristics of submarine cables

International Journal of Electrical Power & Energy Systems
With the large-scale development of offshore wind power, modular multilevel converter-based high-voltage direct current (MMC-HVDC) has emerged as a pivotal grid integration solution, yet it is constrained by high-frequency oscillation issues in power ...
Yanxu Wang, Guoqing Li, Yechun Xin, Zhenzi Song, Tuo Wang, Shouqi Jiang   +5 more
doaj   +1 more source

Coordinated control strategy for MMC-CLCC considering AC voltage support and active power transmission

International Journal of Electrical Power & Energy Systems
The hybrid HVDC transmission system employing the Modular Multilevel Converter (MMC) at the sending end and the Controllable Line-Commutated Converter (CLCC) at the receiving end offers advantages such as avoiding commutation failures and providing ...
Weiru Wang, Yanhui Guo, Yechun Xin, Guoqing Li, Tuo Wang, Yanxu Wang   +5 more
doaj   +1 more source

Simulations of Safety Vales for Fluid Power Systems

System Safety: Human - Technical Facility - Environment, 2019
Abstract Hydraulic power systems are widely used in heavy machinery. Safety of such a systems have a major importance due to the fact that any failure may cause environmental contamination or serious injury. One of the component which protects hydraulic drive systems against excessive rising of working pressure is a safety valve which
Domagala, Mariusz, Momeni, Hassan, Fabiś-Domagała, Joanna, Filo, Grzegorz, Lempa, Paweł   +4 more
openaire   +3 more sources

Physical propagation and anomaly identification of transformer with HVDC&RTTS stray current invasion

International Journal of Electrical Power & Energy Systems
Aiming at the operation stability of the transformer with stray current invasion, the evolution and propagation of multiple information is investigated in this paper.
Chao Pan, Tongrui Fu, Jingge An, Jiaxing Gao, Shoukun Zou, Zhenglong Sun   +5 more
doaj   +1 more source

Establishment of safety power range and subsequent commutation failure suppression strategy for hybrid cascaded HVDC system

International Journal of Electrical Power & Energy Systems
The hybrid cascaded high-voltage direct current (HC-HVDC) system integrates the benefits of both LCC and MMC technologies. However, the inverter LCC is prone to suffer subsequent commutation failure (SCF) when an AC fault occurs. Therefore, a coordinated
He Wang, Jiazhi Guo, Jing Bian, Guoqing Li, Tuo Wang   +4 more
doaj   +1 more source

LLM-Powered User Simulator for Recommender System

Proceedings of the AAAI Conference on Artificial Intelligence
User simulators can rapidly generate a large volume of timely user behavior data, providing a testing platform for reinforcement learning-based recommender systems, thus accelerating their iteration and optimization. However, prevalent user simulators generally suffer from significant limitations, including the opacity of user preference modeling and ...
Zijian Zhang 0009, Shuchang Liu 0001, Ziru Liu, Rui Zhong 0003, Qingpeng Cai 0001, Xiangyu Zhao 0001, Chunxu Zhang, Qidong Liu 0002, Peng Jiang 0002   +8 more
openaire   +2 more sources

Distributed hierarchical control of islanded active distribution networks with dynamic consensus algorithm and adaptive virtual impedance

Frontiers in Energy Research
In the event of an upstream grid fault, the Active Distribution Network (ADN) can switch to autonomous operation, coordinating controllable Distributed Generators (DGs) and Energy Storage Systems (ESS) to maintain power supply reliability.
Xiaoyun Wang, Xiaoyun Wang, Zimin Zhu, Zimin Zhu, Yu Duan, Yu Duan, Xiaofang Wu, Xiaofang Wu, Jian Ma, Jian Ma, Xing Ma, Xing Ma   +11 more
doaj   +1 more source