Results 1 - 10 of 653

Integration of Distributed Energy Storage in Low Voltage Networks

by Carsten Heinrich, Supervisors Msc, Dr. Alex, Er Fuchs , 2015
"... This thesis investigates the potential of Reactive Power Control (RPC), cur-tailment and distributed storage to overcome the challenges resulting from high PV-penetrations in low-voltage networks. On the basis of a theoretical analysis of voltage and thermal constraints, two types of PV distribution ..."
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This thesis investigates the potential of Reactive Power Control (RPC), cur-tailment and distributed storage to overcome the challenges resulting from high PV-penetrations in low-voltage networks. On the basis of a theoretical analysis of voltage and thermal constraints, two types of PV

— Evolution of voltage control in transmission network —

by De Puissance, De Lille, Lep Supervisor Guillaud Xavier, Colas Frédéric, Morin Juliette
"... Growing demand in electricity as well as the integration of renewables sources, economic and environmental concerns are forcing transmission power system to operate more and more closely to their stability limits than ever before. Such trend is particularly worsened with the local objections against ..."
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of transmission system and to avoid costly facility that will not be easily accepted. Through this work, the needs of voltage control in HTB networks as well as the potential interest of a voltage support from distribution systems to HTB systems would be investigated and further discussed by simulations. Figure 1

COORDINATED VOLTAGE AND POWER FLOW CONTROL IN DISTRIBUTION NETWORK

by Daniel Liang , Philip Taylor , Lei Wang , David Miller , Vincent Thornley
"... ABSTRACT ..."
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Abstract not found

Algorithms for Voltage Control in Distribution Networks

by Guido Cavraro, Ruggero Carli
"... Abstract—We consider the problem of exploiting the micro-generators connected to the power distribution grid to provide distributed reactive power compensation for voltage support. We review some of the state-of-the-art control strategies, compare and analyze their performance. Furthermore, we propo ..."
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Abstract—We consider the problem of exploiting the micro-generators connected to the power distribution grid to provide distributed reactive power compensation for voltage support. We review some of the state-of-the-art control strategies, compare and analyze their performance. Furthermore, we

PV-Integration Strategies for Low Voltage Networks

by Carsten Heinrich, Alexander Fuchs
"... Abstract—This paper proposes a method to investigate the potential of Reactive Power Control (RPC) in distribution grids with a high PV-share. The overall objective is to maximize the utilization of installed PV sources. Different RPC approaches are examined in combination with distributed storage, ..."
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, grid expansions and curtailment. Simulations are carried out on ref-erence distribution grids, representing remote, rural and urban networks. Various shares of PV-penetration with different PV-distributions are simulated on a representative irradiance profile. Batteries are optimally dispatched

Voltage Controller for Radial Distribution Networks with Distributed Generation

by Christopher Kigen, Dr. Nicodemus, Abungu Odero
"... Abstract- This paper presents a coordinated network controller whose objective is to maintain an optimal voltage profile across radial distribution networks with distributed generation. This is done by varying the output of the distributed generators. The controller was modeled as an optimization pr ..."
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Abstract- This paper presents a coordinated network controller whose objective is to maintain an optimal voltage profile across radial distribution networks with distributed generation. This is done by varying the output of the distributed generators. The controller was modeled as an optimization

Coordinated Voltage Control in Electric Power Systems

by Mats Larsson Doctoral, Mats Larsson, Printed In Sweden Universitetstryckeriet
"... This thesis deals with various aspects of coordinated voltage control in electric power systems. It consists of an introduction and six papers. The introduction contains a summary of the thesis and tutorials on voltage control and the search methods that have been applied. The first part deals with ..."
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with the coordination of cascaded tap changers in radial distribution feeders. Poor coordination causes unnecessary operations of the tap changers and consequently unnecessary wear as well as poor voltage quality. A tuning rule for the conventional (local) controllers as well as two new (centralized) schemes

1 Response Coordination of Distributed Generation and Tap Changers for Voltage Support

by An D. T. Le, Student Member, K. M. Muttaqi, Senior Member, M. Negnevitsky, G. Ledwich, Senior Member
"... Abstract-- The recent introduction of the competitive electricity market in many countries has sparked a renew trend in connecting small-size generators into distribution networks. Those new generators together with different other types of equipment such as On-load Tap Changing (OLTC) transformer, ..."
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, we present an innovative strategy to coordinate the voltage control actions in a distribution system with more than one voltage regulating device. The method for voltage control coordination is developed based on the priority level of each regulating device and implemented through communication. A

INCREASING OF THE CAPACITY OF LOW-VOLTAGE NETWORKS WITH HIGHER EXPLOITATION OF THEIR COMPONENTS INCREASING OF THE CAPACITY OF LOW-VOLTAGE NETWORKS WITH HIGHER EXPLOITATION OF THEIR COMPONENTS

by Frantisek Vybiralik , Josef Tlusty , Frantisek Vybiralik , Josef Tlusty
"... ABSTRACT Problems related to the increased exploitation of lowvoltage networks are in every distribution company the subject of constant attention, above all with regard to the liberalisation of the electricity market. This paper's proposal deals with the following problem solving: -Increasing ..."
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couplings. c) Connecting dispersed generators with regard to low-power losses and the voltage profile in lowvoltage network (individual contributions) d) Co-ordination of system voltage control in distribution systems with regard to full exploiting voltage tolerance in low-voltage networks. This paper

Hierarchical Coordinated Control for Power System Voltage Using Linear Temporal Logic

by Hongshan Zhao, Hongliang Gao, Yang Xia , 2009
"... The paper proposed an approach to study the power system voltage coordinated control using Linear Tem-poral Logic (LTL). First, the hybrid Automata model for power system voltage control was given, and a hi-erarchical coordinated voltage control framework was described in detail. In the hierarchical ..."
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. In the hierarchical control struc-ture, the high layer is the coordinated layer for global voltage control, and the low layer is the power system controlled. Then, the paper introduced the LTL language, its specification formula and basic method for con-trol. In the high layer, global voltage coordinated control
Results 1 - 10 of 653