Results 221 to 230 of about 21,713 (262)
Some of the next articles are maybe not open access.
An enhancement to cumulant-based probabilistic power flow methodologies
2015 IEEE Innovative Smart Grid Technologies - Asia (ISGT ASIA), 2015Renewable energy sources, such as wind and photovoltaic solar, have been increasingly integrated into electricity grids. They have introduced additional uncertainty to power systems along with uncertainty due to stochastic nature of demand. Traditional deterministic power flow does not provide sufficient information for the calculation and analysis of ...
LE, DINH DUONG +5 more
openaire +2 more sources
Unified boundary and probabilistic power flow
Electric Power Systems Research, 2014Abstract Different types of uncertainties exist in system data. Outages, errors in load forecasts and renewable generations are generally represented as probabilistic uncertainties. Load model coefficients and network parameters, on the other hand, are best represented as interval uncertainties.
A. Mohapatra, P.R. Bijwe, B.K. Panigrahi
openaire +1 more source
Evaluation methods and accuracy in probabilistic harmonic power flow
European Transactions on Electrical Power, 2003AbstractSome evaluation methods to obtain the probability density functions of voltage and current harmonics in multi‐convertor power systems are presented. The approaches are based on Monte Carlo simulation applied to the non linear and linear harmonic power flow equations, on convolution process and on Pearson distributions.
P. CARAMIA +3 more
openaire +4 more sources
Point estimate schemes for probabilistic harmonic power flow
2014 16th International Conference on Harmonics and Quality of Power (ICHQP), 2014There is an increasing interest in standards and technical literature to the probabilistic characterization of voltage and current harmonics in multi-convertor power systems. The characterization requires to express the input data of the harmonic penetration modelling by random variables and to apply probabilistic techniques of analysis.
A. Russo, VARILONE, Pietro, P. Caramia
openaire +4 more sources
The Cumulant Tensor Framework for the Probabilistic Power Flow
2020 IEEE Power & Energy Society General Meeting (PESGM), 2020This paper upgrades the univariate cumulant based approach to solve the probabilistic power flow (PPF) by considering higher-order joint and univariate cumulants in the tensor form. The historical data of wind farms and loads are used to derive their statistical characteristics in the tensor form.
Anton V. Vykhodtsev +2 more
openaire +1 more source
GPU-Accelerated Algorithm for Online Probabilistic Power Flow
IEEE Transactions on Power Systems, 2018This letter proposes a superior GPU-accelerated algorithm for probabilistic power flow (PPF) based on Monte-Carlo simulation with simple random sampling (MCS-SRS). By means of offloading the tremendous computational burden to GPU, the algorithm can solve PPF in an extremely fast manner, two orders of magnitude faster in comparison to its CPU-based ...
Gan Zhou +5 more
openaire +1 more source
Probabilistic power flow using novel wind and solar probabilistic models
2016 IEEE Power and Energy Society General Meeting (PESGM), 2016Renewable based distributed generators are being used extensively owing to the benefits they offer for both utilities and investors. With the spread of these DGs in power systems, A precise model that follows the stochastic behavior of wind or solar is crucial for power system planning and operation.
M. E. Nassar, M.M.A Salama
openaire +1 more source
Probabilistic Power Flow Calculation of Power System with HVDC and Photovoltaic Power Source
2021 IEEE 4th International Electrical and Energy Conference (CIEEC), 2021The grid-connected operation of HVDC (High Voltage Direct Current) and PV (Photovoltaic Power Source) bring more stochastic factors to the power system, which makes the power flow more uncertain. Thus, the probabilistic power flow calculation for power system, which includes HVDC and PV, is proposed.
Xiuqiong Hu, Cong Wang, Qilong Liao
openaire +1 more source
Linear Probabilistic Power Flow for Islanded Microgrids
2020 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), 2020The problem of power flow in islanded operation of microgrids is more complex than in interconnected mode due to the absence of a slack bus. In addition, the power flow must consider uncertainties in a probabilistic framework. Probabilistic power flow has a high computational cost due to the need to assess a large number of states and the use of ...
Elson Moreira +3 more
openaire +1 more source
Probabilistic Power Flow Calculation Considering the Correlation of Distributed Power Sources
2021 IEEE International Conference on Advances in Electrical Engineering and Computer Applications (AEECA), 2021Distributed new energy power generation is a supplement to the existing power generation model. At present, A large number of distributed new energy power sources are connected to the AC distribution network. In order to explore the influence of the correlation of distributed power output on the AC distribution network, this paper proposes a method for
Shaohua Wang +2 more
openaire +1 more source