scholarly journals Power Quality Impact of High Capacity End-Users

Power Quality ◽  
10.5772/15225 ◽  
2011 ◽  
Author(s):  
N. Golovanov ◽  
G. C. ◽  
M. Roscia ◽  
D. Zaninelli
Keyword(s):  
Power Quality ◽  
High Capacity ◽  
End Users

Methods of Power Quality Economic Cost Analyses for End-Users

2013 ◽  
Vol 325-326 ◽  
pp. 665-668
Author(s):  
Xiao Chen Zhen ◽  
Shun Tao ◽  
Xiang Ning Xiao ◽  
Xi Yu Zhang ◽  
Yu Liu
Keyword(s):  
Economic Impact ◽  
Power Quality ◽  
Economic Cost ◽  
End Users ◽  
Economic Data ◽  
Cost Analyses ◽  
General Overview ◽  
Voltage Dips

Power quality problems could cause enormous amounts of economic cost to electricity consumers. Taking voltage dips as an example, this paper presents a general overview of methods to quantify economic impact of power quality problems. It also presents in detail several ways how to collect power quality economic data. At last, suggestions on how such researches could be done in China are represented.

Ultra-Fast DC Charger with Improved Power Quality and Optimal Algorithmic Approach to Enable V2G and G2V

2020 ◽  
Vol 29 (12) ◽  
pp. 2050197
Author(s):  
Bekkam Krishna ◽  
D. Anusha ◽  
V. Karthikeyan
Keyword(s):  
Power Quality ◽  
Control Strategies ◽  
High Capacity ◽  
Circuit Complexity ◽  
Algorithmic Approach ◽  
Loop Control ◽  
Vehicle To Grid ◽  
Single Input ◽  
Ac Converters ◽  
Ev Charging

In existing electric vehicle (EV) charger topology, due to the presence of line frequency transformer and bidirectional DC-DC/AC converters, the circuit complexity in the structure gets increased in EV charger; thereby, it results bigger in size for high capacity. Moreover, due to rectification mode, it consumes the power with poor power quality. To overcome these drawbacks, this paper proposes a single input-dual port (SIDP) isolated bidirectional DC-DC converter (IBDC) to achieve ultra-fast EV charging of the battery. Also, to improve the power quality, a novel DC-link-fed PFC control strategy is proposed in this paper. Moreover, enabling grid to vehicle (G2V) and vehicle to grid (V2G) operation at bidirectional way depends on the situation such as state of charge (SOC) levels, off-peak and peak hours and user-defined data, which have been implemented using optimal algorithmic approach (OAA). The closed-loop control strategies are implemented to transfer the power at an accurate range using PWM plus phase-shifting approach. Moreover, it has the advantages of smaller in size due to the presence of medium frequency transformer and power quality gets improved without any additional converter stage. Finally, to validate the proposed operation, the results are observed under various case studies and conditional input from the customer and presented in this paper. Furthermore, the experimental results have been presented to validate the operation.

A New Kind of Smart Dual DSP2812 Power Quality Monitor Based on Dedicated Users

2014 ◽  
Vol 1008-1009 ◽  
pp. 701-708
Author(s):  
Le Feng Cheng ◽  
Tao Yu
Keyword(s):  
Power Quality ◽  
High Precision ◽  
Low Cost ◽  
Measurement Data ◽  
Electric Energy ◽  
High Capacity ◽  
Quality Measurement ◽  
Digital Signal ◽  
Smart Meter ◽  
Synchronous Sampling

Focus on the increasingly prominent problems of power quality of dedicated users, study on solving electric energy problems, especially for harmonic pollution, was essential. This paper to study the method of testing and calculating electric energy index, then designed hardware to monitor and analyze power quality measurement data. The hardware was developed base on dual DSP2812, which was very advanced digital signal processing chip, and the hardware utilized high precision instantaneous synchronous sampling chip MAX1324, extended RAM and FLASH, RS232 communication circuit, high capacity SD card storage circuit, etc. The dual DSP power quality smart meter was tested and applied in dedicated users and its reliability, practicability, availability and accuracy was authenticated. This smart meter also has advantages of easy to carry, low cost, high precision, easy to promote, etc. can effectively meet power quality management of dedicated users.

Probe and Analyze the Influence that Heavy Duty Motor’s Start Exercise over the Power Quality of Circuit

2011 ◽  
Vol 66-68 ◽  
pp. 2098-2102
Author(s):  
Mei Li ◽  
Dong Mei Zhao ◽  
Yu Sup Nijat ◽  
Zhi Ming Xie
Keyword(s):  
Power Quality ◽  
High Capacity ◽  
Oil Refinery ◽  
Voltage Sag ◽  
Heavy Duty ◽  
Monitoring Result

It is based on the monitoring result a motor of 1600KW start of petro-chemical oil refinery in Urumqi , the paper probe and analyze that high-capacity motor’s start exercise bad influence over the power quality of circuit: voltage sag and harmonics current, and take some improving actions based on its features.

CuS2 sheets: a hidden anode material with a high capacity for sodium-ion batteries

2021 ◽  
Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Low Cost ◽  
High Capacity ◽  
Lithium Ion ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.

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