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Power system economics course design with energy planning, operation and market cases

open access: yesEnergy Reports, 2023
The “Power System Economics: Design and Analysis” for students majoring in electrical engineering is a graduate course to teach the basic concepts. The analysis methods and basic concepts of economic problems involved in electric power are of great ...
Lingtao Li, Yue Xiang, Yu Lu
doaj   +3 more sources

Approximating multi-purpose AC Optimal Power Flow with reinforcement trained Artificial Neural Network

open access: yesEnergy and AI, 2022
Solving AC-Optimal Power Flow (OPF) problems is an essential task for grid operators to keep the power system safe for the use cases such as minimization of total generation cost or minimization of infeed curtailment from renewable DERs (Distributed ...
Zhenqi Wang   +4 more
doaj   +1 more source

Cold Load Pickup Model Adequacy for Power System Restoration Studies

open access: yesEnergies, 2022
When a grid section is re-energized after an interruption, the load behaviour can be significantly different from normal operation. In this manuscript, the impact of the phenomenon—known as cold load pickup—is investigated by evaluating 31 time series ...
Christian Hachmann   +2 more
doaj   +1 more source

Optimal Planning Design of a District-Level Integrated Energy System Considering the Impacts of Multi-Dimensional Uncertainties: A Multi-Objective Interval Optimization Method

open access: yesIEEE Access, 2021
Improving the utilization efficiency of renewable energy sources (RES) is an important task for the development of an integrated energy system (IES). To address this challenge, this paper proposes a novel multi-objective interval optimization framework ...
Hang Liu   +5 more
doaj   +1 more source

Overview on Grid-Forming Inverter Control Methods

open access: yesEnergies, 2020
In this paper, different control approaches for grid-forming inverters are discussed and compared with the grid-forming properties of synchronous machines. Grid-forming inverters are able to operate AC grids with or without rotating machines. In the past,
Peter Unruh   +3 more
doaj   +1 more source

Security‐constrained active power curtailment considering line temperature and thermal inertia

open access: yesIET Generation, Transmission & Distribution, 2023
A novel method is introduced to determine cost‐optimized active power curtailment (APC) of renewable energy sources (RES) considering weather‐dependent dynamic line rating (DLR).
Roman Bolgaryn   +3 more
doaj   +1 more source

Techno-Economic Analysis of Grid-Connected PV and Fuel Cell Hybrid System Using Different PV Tracking Techniques

open access: yesApplied Sciences, 2020
Solar energy has attracted the attention of researchers around the world due to its advantages. However, photovoltaic (PV) panels still have not attained the desired efficiency and economic mature.
Saif Mubaarak   +8 more
doaj   +1 more source

Calculation and Influencing Factor Analysis of PCOV in ±1 100 kV UHVDC Converter Station

open access: yesZhongguo dianli, 2021
The peak value of the continuous operating voltage including commutation overshoot is an important parameter that determines the reference voltage of the DC arrester in the converter station. Based on the Changji-Guquan ±1100 kV UHVDC project, the models
Jiangjiang MA, Lei QI, Yi ZHU
doaj   +1 more source

Dynamic Adaptive Cross-Chain Trading Mode for Multi-Microgrid Joint Operation

open access: yesSensors, 2020
The emerging blockchain technology has injected new vitality into the energy market, especially the peer-to-peer power trading of microgrid systems. However, with the increase of energy blockchain projects, the difficulty of data communication and value ...
Longze Wang   +7 more
doaj   +1 more source

Market Equilibria With Energy Storage as Flexibility Resources

open access: yesIEEE Open Access Journal of Power and Energy, 2022
Uncertain and variable real-time availability of renewable generation can increase the need for supply-side flexibility in power systems. Energy storage is a potential source of such flexibility.
Weiying Gu, Ramteen Sioshansi
doaj   +1 more source

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