Results 51 to 60 of about 3,442 (220)
MMC HVDC Controls for Damping Subsynchronous Interactions With LCC HVDC and Thermal Generator
This paper develops a subsynchronous damping controller (SSDC) on modular multilevel converter (MMC) HVDC with the aim of mitigating three‐way torsional interactions between a line commutated converter (LCC) HVDC, MMC HVDC and a nuclear generator. The test case is based on the French IFA2000 2 GW LCC HVDC and the new 1 GW MMC Eleclink, interacting with
Stefan Kovacevic +4 more
wiley +1 more source
An Efficient Hybrid Islanding Detection Method for Microgrids Using Kalman Filter
Islanding condition gives rise to several problems in distributed generation networks, including power quality disturbances, equipment damage, interference with grid protection, and danger to the utility crews. To avoid islanding detection failure of the passive section in case of a close matching between islanded generation units and loads, the active
Raza Haider +5 more
wiley +1 more source
Lightning‐Induced Overvoltage on Overhead Distribution Line via Hybrid MTL‐PEEC Method
ABSTRACT Transient simulation are more economical and adaptable means of studying lightning overvoltage for overhead distribution line system compared to experiments. A hybrid multi‐transmission‐line (MTL)‐partial element equivalent circuit (PEEC) method proposed for lightning‐induced electromagnetic pulse (LEMP) simulation is verified using the rocket‐
Runyu Fu +7 more
wiley +1 more source
Development of an Electromagnetic‐Thermal Circuit Model for Single‐Phase Three‐Limb Transformers
ABSTRACT Analysing the heat states of transformers under DC bias requires careful consideration of their own structural and material characteristics. Although the 3D finite element method (FEM) is a reliable way of simulating all the details of transformers, it may be time‐consuming or have encountered convergence difficulties due to the complex ...
Yidan Hu +5 more
wiley +1 more source
In this paper, a traveling wave is used for determining fault distance of series compensated transmission lines using frequencies of fault generated and voltage ...
Akmaz, Düzgün, Mamiş, Mehmet Salih
core
Development of a Leader-End Reclosing Algorithm Considering Turbine-Generator Shaft Torque
High-speed auto-reclosing is used in power system protection schemes to ensure the stability and reliability of the transmission system; leader-follower auto-reclosing is one scheme type that is widely used.
Gyu-Jung Cho +6 more
doaj +1 more source
Characteristics of Lightning Strikes on High‐Speed Rail Corridors in Jiangsu Province, China
Based on the terrain, lightning detection data, and catenary engineering parameters along 12 HSR corridors in Jiangsu Province, this study provides detailed analyses of the lightning characteristics, the cumulative probability distribution (CPD) of lightning current amplitudes, and the lightning strike characteristics on the catenary in these areas ...
Yan Liu +7 more
wiley +1 more source
ALSETLab/ADN-RT-EMTP-Model: Real-Time Simulation Models v6.2
V6.2 Release Notes <ul> <li>Previous versions of this model had issues when using the state-space nodal (SSN) solver OLTC model within the SSN library.</li> <li>This update uses a new version of the OLTC model, which makes it ...
Luigi Vanfretti
core +1 more source
基于FDTD和EMTP的特高压大跨越线路雷击暂态过程对比分析
大跨越线路的杆塔高、档距长,反击闪络风险高,准确分析其雷击暂态过程,对于保证特高压线路的安全运行具有重要意义。文中针对淮南—上海特高压工程南通—苏州段的大跨越输电线路,分别建立了该线路雷击暂态过程的FDTD和EMTP模型,得到了大跨越线路的杆塔横担与塔顶电压、导线电压和绝缘子串过电压,并开展了对比分析,结果表明:采用Hara提出的杆塔多波阻抗模型,EMTP计算得到的横担和塔顶电压远大于FDTD计算结果;若不考虑感应分量,EMTP计算得到的导线电压大于FDTD计算结果 ...
谢文炳 +5 more
doaj
No-load energization of a 380 kV underground cable: temporary overvoltages
Dresda (Germania),EEUG - European EMTP-ATP Users Group Meeting ...
GATTA, Fabio Massimo +2 more
core

