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A Novel Reduced Model for Electrical Networks with Constant Power Loads
[article]
2016
arXiv
pre-print
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We consider a network-preserved model of power networks with proper algebraic constraints resulting from constant power loads. ...
With the help of this new matrix, we provide a complementary approach to Kron reduction which is able to cope with constant power loads and nonlinear power flow equations. ...
Proposition 7 suggests that the constant vector B L Γ sin(η) can indeed be interpreted as the constant power loads of the reduced network. ...
arXiv:1512.08250v2
fatcat:4wvfz3g66zc2hn32l4n5ydk44q
A networked reduced model for electrical networks with constant power loads
2016
2016 American Control Conference (ACC)
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We consider structure preserving power networks with proper algebraic constraints resulting from constant power loads. ...
For deriving these reduced models, we introduce the "projected pseudo incidence" matrix which yields a novel decomposition of the reduced Laplacian matrix. ...
The most notable subclass, for which Kron reduced models can be obtained, includes constant current and constant admittance loads in which each load is modelled as a constant current demand and a shunt ...
doi:10.1109/acc.2016.7525479
dblp:conf/amcc/MonshizadehPSS16
fatcat:fjy5dpjpqbcypitgufn7hzytpm
A Novel Reduced Model for Electrical Networks With Constant Power Loads
2018
IEEE Transactions on Automatic Control
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We consider a network-preserved model of power networks with proper algebraic constraints resulting from constant power loads. ...
With the help of this new matrix, we provide a complementary approach to Kron reduction which is able to cope with constant power loads and nonlinear power flow equations. ...
Remark 1 (Load models) As long as we work under the constant voltages premise, any constant power load can equivalently be represented by a constant impedance load. ...
doi:10.1109/tac.2017.2747763
fatcat:c6nuibkjpngerc6my6ne7k2a3i
Single supply of electrical energy in the supply distribution model: using GAMS to model the effects of network parameters on the level of consumer demand
[article]
2020
arXiv
pre-print
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The proposed model of this study is a single supply of electrical energy and is used in distribution systems. ...
The model proposed in this paper accounts for the effects associated with switching capacitors on distribution and dispatching centers. ...
Hence the constant power load model can reduce the accuracy of the model (Liu et.al 2002 and Singh et.al 2009). ...
arXiv:2002.04630v1
fatcat:maf5ppflpjhc7lscmwbjpsb77q
Optimal Dispatching of Integrated Electricity and Heating System with Multiple Functional Areas Considering Heat Network Flow Regulation
2021
Energies
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Secondly, a heat network model considering refined resistance and dynamic characteristics is constructed and the operation regulation modes of the heat network are analyzed. ...
Finally, a certain region in China is taken as a case study to verify the effectiveness of the proposed optimal dispatching model. ...
Compared with static modeling, there is no need to keep the heating power and heat load equal at all times in the dynamic modeling of the heat network. ...
doi:10.3390/en14175525
fatcat:glmj5q6juzdovffjrxu62xjsh4
Impact assessment of varying penetrations of electric vehicles on low voltage distribution systems
2010
IEEE PES General Meeting
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Index Terms-electric vehicles, load flow analysis, power distribution P. Richardson (peter.richardson@ucd.ie), D. Flynn (damian.flynn@ucd.ie) and A. Keane (andrew.keane@ucd.ie) are all ...
Advances in the development of electric vehicles, along with policy incentives will see a wider uptake of this technology in the transport sector in future years. ...
ACKNOWLEDGMENT The authors would like to acknowledge the support of ESB Networks in providing the necessary data for carrying out this work. Thanks are also due to A. Walsh of ESB Networks and J. ...
doi:10.1109/pes.2010.5589940
fatcat:v6fdmpf4rzdtfo4lktfreflw4q
An Optimal Domestic Electric Vehicle Charging Strategy for Reducing Network Transmission Loss While Taking Seasonal Factors into Consideration
2018
Applied Sciences
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This paper tries to regulate network loads and reduce power system transmission loss by optimizing domestic electric vehicle charging loads. ...
With the rapid growth of domestic electric vehicle charging loads, the peak-valley gap and power fluctuation rate of power systems increase sharply, which can lead to the increase of network losses and ...
Given that the proposed model only shifts loads, Pav is a constant for a given power system. ...
doi:10.3390/app8020191
fatcat:kgo5uueuzjdbzerjqhnncytszu
Supply voltage effects on the operation of residential air conditioning appliances: Theoretical analysis
2007
The Renewable Energies and Power Quality Journal (RE&PQJ)
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Some load models of the domestic air conditioning appliances as electrical load are considered. ...
So, the knowledge of the load behaviour is becoming more and more important in the planning and operation of the electric energy distribution network. ...
Acknowledgement The authors wish to acknowledge Endesa-Sevillana for the financial support of this work. ...
doi:10.24084/repqj05.346
fatcat:snivleuatzbaretxtsfwp7kqsy
A Survey of BPL Technology and Feasibility of Its Application in Iran (Gilan Province)
2015
Science Journal of Circuits Systems and Signal Processing
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Finally, a model is evaluated for power lines by selection of a cable in selected area (Gilan province) as high speed transfer media and by investigation of the effect of different loads on channel feature ...
This model is useful in description of frequency response of lines of this network and application in design of data transfer system. ...
For modeling the loads in BPL network, the accepted model in different articles is a set of impedance functions as a selection in time and frequency. ...
doi:10.11648/j.cssp.20150405.11
fatcat:h67w47e6uzhcljh6dmk6mlfrai
Development of Low-Voltage Load Models for the Residential Load Sector
2014
IEEE Transactions on Power Systems
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Both constant load models are implemented with a power factor of 0.95 (inductive).
C. ...
Electrical Load Model For power system analysis, the developed load profiles must be converted into a recognized load model form. ...
doi:10.1109/tpwrs.2014.2301949
fatcat:y7qy5ikaj5eyjpevaja4qgvrxa
Conservation Voltage Reduction in Secondary Distribution Networks with Distributed Generation and Electric Vehicle Charging Loads
2018
2018 5th International Conference on Electric Power and Energy Conversion Systems (EPECS)
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In this paper, a component-based load modelling approach is used to create time-varying models of residential loads designed to accurately represent the changes in electrical characteristics of LV customer ...
CVR is a well-established technique where the voltage in LV networks is managed at a reduced, but still acceptable level in order to obtain energy savings. ...
For a constant power load (n p =0), the CVR factor is 0, for a constant current load (n p =1), the CVR factor is in the 0.7-0.8 range, and for a constant impedance load (n p =2), the CVR factor is in the ...
doi:10.1109/epecs.2018.8443502
fatcat:5kkrp7cmr5c2dfbiocbhuxk5fu
Using an Intelligent Control Method for Electric Vehicle Charging in Microgrids
2022
World Electric Vehicle Journal
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In this switching strategy, the power converter is modeled as a DC fast charging station, which controls the fast charging of vehicles with a new constant current or reduced constant current method and ...
As a result, the test is presented on a fast charging system of electrical outlets with a proposed two-way reactive power compensation control strategy, in which AC/DC converters are used to exchange two-way ...
EV loads could be modeled as a constant power load, current load, or impedance load. ...
doi:10.3390/wevj13120222
fatcat:xp6inntz25dbvfqixwxsvbm3ze
Optimal Placement and Sizing of Distributed Generations in Unbalanced Distribution Networks Considering Load Models and Uncertainties
2017
Iranian Journal of Electrical and Electronic Engineering
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the load model and type of load connection and the uncertainties which caused by the generated power of wind turbines and solar panels, the positive effects of these sources have been examined on unbalanced ...
Hence with linear three-phase unbalanced load flow method and IPSO algorithm, allocation of distributed generation sources in IEEE standard of 37 bus unbalanced network have been done. ...
are respectively network powers in constant power load model, constant current load model and constant impedance load model and V k is voltage of bus k. ...
doaj:904711f2ad804624ab9eeca1e1a07184
fatcat:2sbdnmmgvnapxjz5hk742mpwpi
Using the constant current ‒ constant voltage converters to effectively reduce voltage fluctuations in the power supply systems for electric arc furnaces
2020
Eastern-European Journal of Enterprise Technologies
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This makes it possible to use EAFs in smaller power systems and ensure the development of the industry at a lower investment Keywords: reducing the flicker dose, voltage fluctuations, electricity quality ...
AC electric arc furnaces (EAFs) are among the most common technological units for making high-quality steel. ...
Connecting such installations to a power supply network whose voltage is supported almost constant at U=const ensures their high performance and electromagnetic compatibility with the network. ...
doi:10.15587/1729-4061.2020.219439
fatcat:j47szgkzc5henluubxw45qcgau
Stability Assessment of Isolated Micro-grids Powered by Distributed Combined Heat and Power Micro-units
2011
IFAC Proceedings Volumes
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The electrical household loads are based on probabilistic modelling, with high time resolution. ...
It is assumed that the electrical load is the reference input variable of the local grid to reduce the necessity of electrical energy storages. The produced thermal energy will be stored. ...
The loads are set with a constant power factor cos ϕ = 0.99. ...
doi:10.3182/20110828-6-it-1002.01554
fatcat:esifghfdkra5loab2nfwskwspy
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