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Journal of Ambient Intelligence and Humanized Computing, 2021
Electric power aims to generate electrical energy and distribute to the end-user application at an acceptable voltage level. The quality of power will be affected by various factors like voltage sag, swell, harmonic and Power interruptions, etc. The major reason behind the deteriorations of the power quality is nonlinearity in loads which draws out ...
Viswaprakash Babu +3 more
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Electric power aims to generate electrical energy and distribute to the end-user application at an acceptable voltage level. The quality of power will be affected by various factors like voltage sag, swell, harmonic and Power interruptions, etc. The major reason behind the deteriorations of the power quality is nonlinearity in loads which draws out ...
Viswaprakash Babu +3 more
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IEEE Transactions on Power Electronics, 2017
The ac current ripple, the common voltage (CMV), and the current stress on the dc-link capacitor are defined as the critical performance indicators of the three-phase four-switch (TPFS) converter, and the effect of the zero-voltage vector distribution on these crucial indicators is investigated comprehensively in the proposed paper.
Zhiyong Zeng +2 more
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The ac current ripple, the common voltage (CMV), and the current stress on the dc-link capacitor are defined as the critical performance indicators of the three-phase four-switch (TPFS) converter, and the effect of the zero-voltage vector distribution on these crucial indicators is investigated comprehensively in the proposed paper.
Zhiyong Zeng +2 more
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Online voltage stability monitoring of distribution system using optimized Support Vector Machine
2016 IEEE 6th International Conference on Power Systems (ICPS), 2016Voltage stability monitoring plays a significant role in secure and reliable operation of modern power systems. In this paper, two methods, (i) Particle Swarm Optimization (PSO) based Support Vector Machine (PSO-SVM) and (ii) Genetic Algorithm (GA) based Support Vector Machine (GA-SVM) is proposed for online voltage stability monitoring of distribution
Akanksha Shukla +2 more
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IEEJ Transactions on Electrical and Electronic Engineering, 2017
Fault location identification is an important task to provide reliable service to the customer. Most existing artificial intelligence methods such as neural network, fuzzy logic, and support vector machine (SVM) focus on identifying the fault type, section, and distance separately.
Sophi Shilpa Gururajapathy +3 more
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Fault location identification is an important task to provide reliable service to the customer. Most existing artificial intelligence methods such as neural network, fuzzy logic, and support vector machine (SVM) focus on identifying the fault type, section, and distance separately.
Sophi Shilpa Gururajapathy +3 more
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2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2), 2020
Risk analysis is the prerequisite for the management of low voltage problems in the distribution network. For this reason, a method of low voltage risk prediction based on principal component analysis and support vector machine is proposed. First, a sample set containing the number of low voltage consumers in the station area and 17 influencing factors
Chao Chen +5 more
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Risk analysis is the prerequisite for the management of low voltage problems in the distribution network. For this reason, a method of low voltage risk prediction based on principal component analysis and support vector machine is proposed. First, a sample set containing the number of low voltage consumers in the station area and 17 influencing factors
Chao Chen +5 more
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2006 China International Conference on Electricity Distribution (CICED 2006), 2006
Voltage sags have become an important power quality issue in power system over the past several years. Voltage sags are short duration reductions in RMS voltage, mainly caused by short circuits, transformer energizing, and starting on large motors. Aim of this paper is to show that certain types of voltage sags should be considered in the analysis of ...
null Wei Chen +2 more
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Voltage sags have become an important power quality issue in power system over the past several years. Voltage sags are short duration reductions in RMS voltage, mainly caused by short circuits, transformer energizing, and starting on large motors. Aim of this paper is to show that certain types of voltage sags should be considered in the analysis of ...
null Wei Chen +2 more
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2013 IEEE Energy Conversion Congress and Exposition, 2013
The common-mode voltage reduction method of the voltage source inverter has been studied extensively, but the studies for current-source inverter are less than that[1]. This paper proposes the new space vector PWM methods that can reduce the output common-mode voltage fluctuation of the PWM current source inverter.
Yushi Takatsuka +2 more
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The common-mode voltage reduction method of the voltage source inverter has been studied extensively, but the studies for current-source inverter are less than that[1]. This paper proposes the new space vector PWM methods that can reduce the output common-mode voltage fluctuation of the PWM current source inverter.
Yushi Takatsuka +2 more
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2017 29th Chinese Control And Decision Conference (CCDC), 2017
A direct torque control strategy based on zero voltage vector distribution is proposed for neutral point clamped (NPC) three-level inverter-fed permanent magnet synchronous motor (PMSM) drive system, which is characterized by low torque ripples and fast speed response.
Xu Wang, Ye Zhou, Dan Yang, Xiaoyan Shi
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A direct torque control strategy based on zero voltage vector distribution is proposed for neutral point clamped (NPC) three-level inverter-fed permanent magnet synchronous motor (PMSM) drive system, which is characterized by low torque ripples and fast speed response.
Xu Wang, Ye Zhou, Dan Yang, Xiaoyan Shi
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2012 International Conference on Computing, Electronics and Electrical Technologies (ICCEET), 2012
Very often in distribution systems many small loads of the order of 100KVA or less are fed from same feeder. A fault at one load drastically affects the loads even at far end. Here the effect of L-G and L-L faults followed by an Open conductor fault (fuse blow off in one phase) at the remote load point is presented for different feeder X/R ratios.
P.N.K. Sreelatha +2 more
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Very often in distribution systems many small loads of the order of 100KVA or less are fed from same feeder. A fault at one load drastically affects the loads even at far end. Here the effect of L-G and L-L faults followed by an Open conductor fault (fuse blow off in one phase) at the remote load point is presented for different feeder X/R ratios.
P.N.K. Sreelatha +2 more
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Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2009
To evaluate the possibility of resultant cardiac vector of ex vivo guinea pig heart.ECGs were recorded in 4 directions on every plane, and in each direction 4 points at different distances from the anterior, posterior, right and left of isolated guinea pig ventricles immersed in normal saline and distilled water.Main upward waves of ECGs were recorded ...
Ben-fu, Li, Xiang, Zhou
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To evaluate the possibility of resultant cardiac vector of ex vivo guinea pig heart.ECGs were recorded in 4 directions on every plane, and in each direction 4 points at different distances from the anterior, posterior, right and left of isolated guinea pig ventricles immersed in normal saline and distilled water.Main upward waves of ECGs were recorded ...
Ben-fu, Li, Xiang, Zhou
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