Results 261 to 270 of about 5,405,091 (300)

Overview of voltage sag profile estimation

TENCON 2015 - 2015 IEEE Region 10 Conference, 2015
Voltage sags are considered important because they may cause equipment to malfunction and/or interrupt industrial processes and commerce. There is a need for voltage sag profile estimation, because voltage monitoring equipment may prove costly for utilities. This paper provides a review of existing work on voltage sag profile estimation.
Ivan B. N. C. Cruz, Athena P. Lavega, Jordan R. C. Orillaza   +2 more
openaire   +1 more source

Determination of dopant profiles by voltage measurements

IEEE Transactions on Electron Devices, 1977
The dopant profile in the channel of a double-gated J-FET with uniformly doped channel and substrate is determined from measurements of gate voltage pairs at pinchoff. This procedure offers advantages over the C-V method in cases of imprecisely known gate area, or in the presence of significant stray capacitance.
K. Lehovec, null Chih-Hong Chen
openaire   +1 more source

Voltage profile improvement with distributed generation

IEEE Power Engineering Society General Meeting, 2005, 2005
Recent changes in the energy industry initiated by deregulation have accelerated the introduction of distributed generation at the subtransmission and distribution levels. In light of the well-known benefits as well as the various issues involved in DG incorporation, this paper proposes two new quadratic voltage profile improvement indices (VPII/sub 1/
H. Iyer, S. Ray, R. Ramakumar
openaire   +1 more source

Simultaneous load leveling and voltage profile improvement in distribution networks by optimal battery storage planning

Energy, 2019
Battery Energy Storage Systems can provide various applications in the distribution networks including load leveling, expansion deferral, voltage profile improvement, frequency regulation, fast reserve, and renewable energy time shift.
H. Mehrjerdi
semanticscholar   +1 more source

Voltage profiles and closures on Rogowski coils

IEE Proceedings - Electric Power Applications, 2002
The voltage profiles along Rogowski coils are calculated, and three alternative ways of closing the loop are compared. In plane layouts the induced voltage is uniformly distributed with respect to the angle subtended at the measured current, but is not uniform along the coil length.
S.A. Viana, P.N. Murgatroyd
openaire   +1 more source

Distributed generation and the voltage profile on distribution feeders during voltage dips

Electric Power Systems Research, 2010
Abstract The presence of distributed generators in the distribution network results in an increase of the voltage magnitude close to these generators, during a fault elsewhere in the distribution system or in the transmission system. This voltage dip mitigation capability of converter-connected distributed generation (DG) units is dependent on the ...
B. Renders, L. Vandevelde, L. Degroote, K. Stockman, M.H.J. Bollen   +4 more
openaire   +1 more source

Improvement of voltage profile in Smart Grid using voltage sensitivity approach

2012 Students Conference on Engineering and Systems, 2012
The “Smart Grid” modernizes the aging power system and is characterised by two-way flow of electrical power and information within the network. Voltage stability is the prime concern of over stressed power system network. In Smart Grid, the overall voltage profile of the power network can be efficiently improved and thus avoids problems of voltage ...
Kulprakash Kumar Singh, Rajeev Kumar, R. C. Jha   +2 more
openaire   +1 more source

Secondary Voltage Control: Enhancing power system voltage profile

2008 IEEE 2nd International Power and Energy Conference, 2008
In this paper, a basic overview of voltage control levels is provided with emphasis on secondary voltage control (SVC). The Brazilian simulations of implementing SVC are discussed to highlight the benefits of SVC. Also, some implementation issues are discussed.
openaire   +1 more source

Visualising the effect of DG on voltage profile in medium voltage distribution networks

2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2015
Distributed renewable generation is increasing all over the world. The effect of Distributed Generation (DG) on system voltage profile can be examined through sensitivity studies. The sensitivity matrix depicts variations in the voltage magnitude with respect to changes in active and reactive power associated with loads and local generation at ...
Yasmin Nigar, A. P. Agalgaonkar, Phil Ciufo   +2 more
openaire   +1 more source

Decentralized Voltage Control Method to Regulate Voltage Profile in Distribution Network

2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019
The solar photovoltaic generation and energy storage system are rapidly interconnecting to the distribution network. It has made the voltage rise problem in distribution lines due to the reverse current flows at the PCC(Point of Common Coupling) of DG.
Donggyun Han, Jihui Hwang, Myeonsong Choi, Seongil Lim   +3 more
openaire   +1 more source