IEEE Transactions on Power Delivery
Công bố khoa học tiêu biểu
* Dữ liệu chỉ mang tính chất tham khảo
Sắp xếp:
Application of immune-based optimization method for fault-section estimation in a distribution system
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 779-784 - 2002
In this paper, an immune algorithm-based (IA-based) optimization approach for the fault-section estimation of a distribution system is proposed. To apply the method to solve this estimation problem, each section of a power system model can be considered as an antibody. Through the immunology evolution, an antibody that most fits the antigen of concern becomes the solution. An affinity calculation ...... hiện toàn bộ
#Optimization methods #Circuit faults #Power system protection #Power system relaying #Power system faults #Power system measurements #Power system modeling #Protective relaying #Circuit breakers #Power system restoration
Experimental results of a supplementary technique for auto-reclosing EHV/UHV transmission lines
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 702-707 - 2002
A technique to discriminate between the line charging inrush current and the current resulting on closing or auto-reclosing a faulted EHV/UHV transmission line has been implemented on a 32-b digital signal processor (DSP) board. The technique is based on the voltage signals before switching and the current signals. This technique is proposed to be a supplement to the main protection schemes for bo...... hiện toàn bộ
#Transmission lines #Voltage #Circuit faults #Protection #Relays #Laboratories #Testing #Protective relaying #Fault currents #Surges
Stability domain calculations of period-1 ferroresonance in a nonlinear resonant circuit
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 865-871 - 2002
Catastrophic equipment failures continue to occur today due to ferroresonance even though this phenomenon has been extensively studied over the past 90 years. This paper is concerned with comparing analytical nonlinear dynamics methods with a two-dimensional (2-D) brute-force bifurcation diagram for displaying safety margins in a 2-D parameter space. A simplified single-phase model is used to repr...... hiện toàn bộ
#Circuit stability #Ferroresonance #RLC circuits #Two dimensional displays #Equipment failure #Bifurcation #Safety #Circuit breakers #Capacitors #EMTP
Extraction of Harmonics Using Composite Observers
IEEE Transactions on Power Delivery - Tập 23 Số 1 - Trang 31-40 - 2008
Accuracy limits in the computed transients on overhead lines due to inaccurate ground return modeling
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 872-878 - 2002
Electromagnetic transients on overhead transmission lines are strongly affected by the resistivity /spl rho/ of the ground return which, however, is often poorly known. Therefore, the calculation of transients with very high accuracy for a given /spl rho/ may not make good engineering sense if it entails loss of computational efficiency. The effect of /spl rho/ on the transients comes primarily vi...... hiện toàn bộ
#Power system transients #Conductivity #Impedance #Computational modeling #Voltage #Transient analysis #Transmission lines #Power transmission lines #Computational efficiency #Frequency dependence
A Bayesian approach for short-term transmission line thermal overload risk assessment
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 770-778 - 2002
An on-line conductor thermal overload risk assessment method is presented in this paper. Bayesian time series models are used to model weather conditions along the transmission lines. An estimate of the thermal overload risk is obtained by Monte Carlo (MC) simulation. We predict the thermal overload risk for the next hour based on the current weather conditions and power system operating condition...... hiện toàn bộ
#Bayesian methods #Transmission lines #Risk management #Power system modeling #Power transmission lines #Weather forecasting #Power system simulation #Conductors #Thermal conductivity #Monte Carlo methods
IEEE Task Force Report: brittle fracture in nonceramic insulators
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 848-856 - 2002
A description of the composite insulator brittle fracture phenomenon suitable to allow correct diagnosis of a failure is provided. This paper reports on the number of brittle fractures that have occurred around the world and contains specific empirical data surrounding composite insulator brittle fractures in the US. It also includes several case studies of in-service failures to inform the reader...... hiện toàn bộ
#Insulation #Surface cracks #Surface cleaning #Scanning electron microscopy #Corrosion #Delamination #Lifting equipment #Manufacturing #Frequency #Dispersion
Load and voltage balancing in harmonic power flows by means of static VAr compensators
IEEE Transactions on Power Delivery - Tập 17 Số 3 - Trang 761-769 - 2002
In special applications, static VAr compensators (SVCs) with thyristor-controlled reactors (TCRs) are used to balance unbalanced loads or to eliminate voltage unbalances at the terminals of the SVC. In both cases, load balancing and voltage balancing, the TCR can present a significant unbalanced behavior which produces important quantities of noncharacteristic harmonics. In this paper, the formula...... hiện toàn bộ
#Voltage #Power system harmonics #Static VAr compensators #Load flow #Power harmonic filters #Load management #Harmonic analysis #Load flow analysis #Inductors #Frequency
Investigating the effects of oxidation and thermal degradation on electrical and chemical properties of power transformers insulation
IEEE Transactions on Power Delivery - Tập 14 Số 4 - Trang 1359-1367 - 1999
An Online Travelling Wave Fault Location Method for Unearthed-Operated High-Voltage Overhead Line Grids
IEEE Transactions on Power Delivery - Tập 33 Số 6 - Trang 2776-2785 - 2018
Tổng số: 167
- 1
- 2
- 3
- 4
- 5
- 6
- 10