Showing 1-25 of 29,020 resultsfor "Index Terms":Peak Distribution
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PAPR Reduction for FBMC-OQAM System With Laplace-Based Linear Companding Transform
IEEE Communications Letters
Cited by: Papers (2)
The filter-bank multi-carrier (FBMC) with offset quadrature amplitude modulation (OQAM) is considered a promising waveform for 5G due to its favorable frequency-time localization and efficient spectrum utilization. However, the specific overlapping structure and multi-carrier nature of FBMC-OQAM waveforms result in an exceptionally high peak-to-average power ratio (PAPR). To address this issue, th...Show More
Probabilistic approach in sizing distribution transformers
2010 IEEE 11th International Conference on Probabilistic Methods Applied to Power Systems
Year: 2010 | Conference Paper |
Cited by: Papers (2)
This paper presents a probabilistic approach in sizing distribution transformers capacity supplying residential, commercial, and combination of residential and commercial loads. Load data recorded from the three categories of aggregate loads are used to establish probability distribution curves based on the goodness-of-fit test. The gamma distribution is found to be the best fit among all probabil...Show More
Influence of First Return Stroke Current Distributions of Tropical and Temperate Regions on the Assessment of Backflashover Occurrence of Transmission Lines
2021 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA)
Year: 2021 | Conference Paper |
Cited by: Papers (1)
The effect of first return stroke current distributions of tropical and temperate regions on the assessment of backflashover occurrence of transmission lines is analyzed by means of computational simulations. Current parameters and associated distributions derived from the measurements performed at Morro do Cachimbo station (MCS), Brazil, that comprise 51 negative cloud-to-ground flashes and media...Show More
Impact Analysis of Time-of-Use pricing enabled Electric Vehicle charging to the uncoordinated charging on a Distribution Network
Muhammad Abeer Sohail;Rashna Khan;Syed Hammad Mukhtar;Ahmad Usman
2023 IEEE Power & Energy Society General Meeting (PESGM)
Year: 2023 | Conference Paper |
Cited by: Papers (4)
Increased adoption of Electric Vehicles (EVs) result in appearance of high energy demand clusters in a distribution network. This has adverse effects on the distribution network resulting in voltage drop, increased losses, overloading of distribution feeders, transformers, and critical components. This results in degradation of power quality and network stability. In this work, a modified IEEE 13 ...Show More
An Analysis of Controlled Charging of Electric Vehicles and Its Impact on the Distribution Grid
2024 3rd Odisha International Conference on Electrical Power Engineering, Communication and Computing Technology (ODICON)
Year: 2024 | Conference Paper |
An electrical sector is concerned about large-scale electric vehicle adoption and energy needs. EV demand and home charging have an impact on distribution. Level 1 chargers are primarily used to charge EVs at home. Low charging times and prices encourage level 1 users to depart. Increased charging requirements may result in under voltages, energy losses, and uneven power distribution across phases...Show More
Important smart distribution applications are categorized, descriptions of the critical functions involved are developed, important components of these systems are defined, and examples of the systems that can be considered as part of distribution management systems or other smart distribution systems are provided in this guide.Show More
Important smart distribution applications are categorized, descriptions of the critical functions involved are developed, important components of these systems are defined, and examples of the systems that can be considered as part of distribution management systems or other smart distribution systems are provided in this guide.Show More
This paper investigates the influence of the peak current distribution on the assessment of the average annual number of strokes to transmission lines (TLs). Three widely used lightning attachment models in TL performance studies are implemented, namely: i) electrogeometric model (EGM) considering the constants suggest in the IEEE Std. 1243; ii) the attractive width approach proposed by Eriksson; ...Show More
PAPR Reduction for OFDM System with a Class of HNN
2006 International Symposium on Communications and Information Technologies
Year: 2006 | Conference Paper |
Cited by: Papers (2)
The PAPR issue in OFDM system can be formulated to a combinational optimization problem. This paper proposes a class of approaches to reduce the PAPR value of multi-carrier/OFDM system by solving this combinational optimization problem with some improved Hopfield Neural Networks· ·HNN·. ·Furthermore, the general theoretical framework of PAPR reduction based on all kinds of HNN is presented as well...Show More
Global warming leads the world to think of a different way of transportation: avoiding internal combustion engines and electrifying the transportation sector. With a high penetration of electric vehicle (EV) charging stations on an existing power distribution network, the impact may be consistent. The loads of the fast-charging stations would potentially result in increased peak load demand, reduc...Show More
Distribution of envelope power using selected mapping in OFDM systems with nonlinearity
2008 IEEE International Conference on Acoustics, Speech and Signal Processing
Year: 2008 | Conference Paper |
Cited by: Papers (2)
Selected mapping (SLM) techniques have been used to reduce the high peak-to-average power ratio (PAR) in Orthogonal Frequency Division Multiplexing (OFDM) systems. The capacity of PAR reduction can be increased by improving the PAR statistics at the cost of complexity of the OFDM transmitter. However, it is difficult to clarify the performance degradation in the presence of nonlinearities, such as...Show More
A fast and efficient coordinated vehicle-to-grid discharging control scheme for peak shaving in power distribution system
This study focuses on the potential role of plugin electric vehicles (PEVs) as a distributed energy storage unit to provide peak demand minimization in power distribution systems. Vehicle-to-grid (V2G) power and currently available information transfer technology enables utility companies to use this stored energy. The V2G process is first formulated as an optimal control problem. Then, a two-stag...Show More
This guide identifies factors that contribute to lightning-caused faults on the line insulation of overhead distribution lines and suggests improvements to existing and new constructions.Show More
Price-Based Demand Response Strategy for Coordinated PV Distributed Generation and Demand Side Management in Distribution Network
2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)
Year: 2020 | Conference Paper |
Cited by: Papers (6)
This paper presents a model for demand response programs in distribution networks with photovoltaic distributed generation. The demand-price elasticity approach proposed in this paper considers the load profile for customers, participating in demand response programs. The objective of this research is to demonstrate the best strategy for using the critical peak pricing tariff as well the proposed ...Show More
PAPR reduction of FBMC signals by combining exponential companding and hadamard transforms
Brahim Elmaroud;Ahmed Faqihi;Mohammed Abbad;Driss Aboutajdine
The 2014 International Symposium on Networks, Computers and Communications
Year: 2014 | Conference Paper |
Cited by: Papers (10)
Filter Bank Multicarrier (FBMC) is an efficient multicarrier modulation characterized by its good spectral efficiency and low out of band leakage. Nevertheless, FBMC signals suffer from the high Peak-to-Average Power Ratio (PAPR). This leads nonlinear devices such as Power Amplifiers, when used, to operate in their saturation region which may severely impair system performance. In this paper, we p...Show More
In this paper we study some statistical properties of a multicarrier signals using the order statistics. Analytical expressions for the probability density function of different order statistics of a sampled OFDM system is presented. We then find the amount of power which is clipped from each order of the signal when the signal is passed through a clipping nonlinearity. This is used to represent t...Show More
Load forecasting is important process, which ensures that power consumption at the consumer end, is effectively delivered. The selection of an appropriate statistical distribution for a dataset is one of the approaches required to analyse load profiles. Typically, probability distributions associated with the daily peak load measurements is often of interest to Forecasters. In this paper, the dail...Show More
Extending constellation shaping by shell mapping method to reduce the peak and average power of space-time block coded OFDM systems
European Wireless 2012; 18th European Wireless Conference 2012
Year: 2012 | Conference Paper |
We extend our constellation shaping by shell mapping method of reducing the peak and average power of orthogonal frequency division multiplexing (OFDM) signals using quadrature-amplitude modulation (QAM) on all subcarriers from single transmit antenna systems to multiple transmit antennas systems. We consider space-time block codes that are designed for maximum antenna diversity and start from the...Show More
Implementation of Peak Demand Reduction on a Distribution Feeder using Python-OpenDSS co-simulation
Shilpa Aralasurali Subramanya;Meena Parathodiyil;A.N. Nagashree
2021 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT)
Year: 2021 | Conference Paper |
Cited by: Papers (2)
In India, the power distribution is the weakest and the most crucial segment in the power system. The major problem faced by the power distribution sector is the management of peak load. Peak load condition leads to electric power interruption which brings down the consumer satisfaction. The proposed work focuses on prevention of peak load on urban distribution feeder. This situation may occur for...Show More
It is well known that orthogonal-frequency-division-multiplexing (OFDM) transmission is spectrally efficient but power inefficient due to the large peak-to-average power ratio (PAR) of the OFDM signal. Selected mapping (SLM) is a promising PAR reduction technique that is distortionless and has good PAR reducing capability. In SLM, the phases of the frequency domain OFDM subsymbols are first rotate...Show More
Modeling the Maximum Feeder Burden Rate with Minimum Data
2023 8th Asia Conference on Power and Electrical Engineering (ACPEE)
Year: 2023 | Conference Paper |
The feeder burden rate (FBR) is an essential index for distribution network planning and operation. However, estimating an accurate FBR requires an enormous historical data set. This paper proposes a novel probabilistic index feeder burden rate through the peak over threshold (POT) method. With this method, we only require a few extreme load data while being able to provide a reasonable tail distr...Show More
The estimation of VaR and ES based on Gaussian mixture model–Take the Shanghai Composite Index as an example
2022 22nd International Conference on Control, Automation and Systems (ICCAS)
Year: 2022 | Conference Paper |
Cited by: Papers (1)
The key to calculating Value at Risk is whether the assumption of return distribution of financial assets is reasonable. In the first place, we introduce the basic theoretical knowledge of Value at Risk and expected shortfall. In the second place, since the distribution of financial assets returns has the characteristics of sharp peaks and heavy tails, we propose a Gaussian mixture model to descri...Show More
A unified method for determining characteristic parameters of different reliability statistics
2001 6th International Conference on Solid-State and Integrated Circuit Technology. Proceedings (Cat. No.01EX443)
Year: 2001 | Conference Paper |
By using proportional difference operator (PDO), a unified method Proportional Difference Estimate (PDE) method, for direct estimation of the characteristic parameters of exponential, normal, log-normal, and Weibull distributions was developed from their cumulative distribution functions. These distributions are widely used in microelectronics reliability study. Consequently, this method will be v...Show More
On the distribution of peak-to-average power ratio for non-circularly modulated OFDM signals
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)
Year: 2003 | Conference Paper |
In this paper we investigate the distribution of the peak-to-average power ratio for non-circularly modulated OFDM system. In contrast to circularly modulated OFDM systems, we find the following characteristics for non-circularly modulated OFDM symbols: i) they do not converge to complex Gaussian sequence asymptotically; and ii) the correlation among OFDM symbol powers does not diminish as the num...Show More
Developing More Accurate Load Flow Studies for Extreme Winter Peaks
2024 IEEE Rural Electric Power Conference (REPC)
Year: 2024 | Conference Paper |
Load flow studies are essential for planning and operating electric power systems. However, the accuracy of these studies can be affected by a number of factors, including the ambient conductor temperature. During extreme winter peaks, the ambient conductor temperature can drop significantly below 25°C, the default value used in many load flow software programs. This can lead to inaccurate results...Show More
Standards Dictionary Terms
- AMI
- DG
- DR
- EPS
- HV
- National Pipe Thread (NPT)
- ONAN and ONAF
- PCC
- SCADA
- barrier
- bracket grounding
- cluster ground assembly
- conservation voltage reduction (CVR)
- continuity
- distributed generation (DG)
- distribution substation transformer
- ground potential rise (GPR)
- high voltage
- incoming section
- liquid
- low voltage
- metal-oxide surge arrester (MOSA)
- outgoing section
- phase-to-ground (parallel) grounding
- phase-to-phase (chain) grounding
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