Results 21 to 30 of about 3,063 (167)

Optimization of the Black-Box Arc Models for DC Current Limiting Circuit Breakers Using Levenberg-Marquardt Algorithm

open access: yesIEEE Access, 2023
The black-box arc model is a tool that facilitates efficient research based on empirical studies in breaker design and analysis. However, its application has primarily focused on the design of ACCBs, with only a few instances of its implementation in the
Kyu-Hoon Park   +2 more
doaj   +1 more source

A novel HVDC circuit breaker for HVDC application [PDF]

open access: yesInternational Journal of Electrical Power & Energy Systems, 2019
Hybrid high voltage direct current circuit breakers (DCCBs) are capable of interrupting fault current within a few milliseconds, but this technology has high capital cost, especially in a meshed HVDC grid. To increase the economic competitiveness of hybrid DCCBs, this paper proposes a capacitor commutated dc circuit breaker (CCCB).
Meng Zhou   +4 more
openaire   +2 more sources

Inertia Compensation Strategy of AC/DC System Tie Line Based on Energy Storage Differential Control

open access: yesTaiyuan Ligong Daxue xuebao, 2021
A strategy of compensating DC tie line inertia by differential control of energy storage was proposed in this paper. First, through the analysis of AC/DC transmission model and the inertia characteristics of DC tie line, a two zone AC/DC hybrid AGC ...
Xilin ZHAO, Daheng ZHANG, Hang MING
doaj   +1 more source

A Novel Approach to Control Multi Terminal Direct Current Grids under Different Operation Conditions [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2023
Frequency control plays a crucial role in maintaining stability and power equilibrium in Alternative Current (AC) systems, ensuring a balanced distribution between generation and demand.
SEDAGHATI Reza
doaj  

Offshore Wind Power Integration into Future Power Systems: Overview and Trends

open access: yesJournal of Marine Science and Engineering, 2019
Nowadays, wind is considered as a remarkable renewable energy source to be implemented in power systems. Most wind power plant experiences have been based on onshore installations, as they are considered as a mature technological solution by the ...
Ana Fernández-Guillamón   +3 more
doaj   +1 more source

Study on Burnout Mechanism of TE Board for HVDC Transmission Project Electric Triggered Converter Valve

open access: yesZhongguo dianli, 2020
Thyristor electronic board (TE board) of HVDC converter valve is an important equipment of HVDC converter valve. In the process of operation and maintenance, TE board burned out many times, resulting in the shutdown of the converter valve pole, which ...
Zhen WANG, Kun LIU, Wei JU
doaj   +1 more source

IoT Supervised PV-HVDC Combined Wide Area Power Network Security Scheme Using Wavelet-Neuro Analysis

open access: yesAdvances in Electrical and Electronic Engineering, 2022
Power system networks are one of the most widely used methods in the real world for transferring large amounts of electrical energy from one location to another.
Gantaiah Swamy Garika, Padma Kottala
doaj   +1 more source

Capacitor Energy Variations in MMC Using Harmonics Injection

open access: yesPower Electronics and Drives, 2020
Modular multilevel converter (MMC) is considered as a good technology for high-voltage direct current (HVDC) transmission systems. It can generate a good quality staircase output voltage waveform due to the cascaded connection of large number of ...
Hafeez Kamran   +3 more
doaj   +1 more source

Design and tests of reinforcement-learning-based optimal power flow solution generator

open access: yesEnergy Reports, 2022
Optimal power flow (OPF) is a very traditional problem in the research field of power systems. In this paper, an OPF solution generator based on reinforcement learning (RL) is proposed. The solution process of OPF is modeled as a one-step Markov Decision
Hongyue Zhen   +7 more
doaj   +1 more source

Modelling of HVDC breakers for HVDC grid simulations

open access: yes13th IET International Conference on AC and DC Power Transmission (ACDC 2017), 2017
This paper deals with the modelling of high-voltage direct current (HVDC) breakers in PSCAD. The models are aimed at HVDC grid simulation and are kept as simple as possible.
Augustin, Tim   +2 more
openaire   +3 more sources

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