ATSC dynamic reactive power compensation device and its effect on improving the power quality

2006 ◽  
Author(s):  
Peng Li ◽  
Tianfeng Zhang ◽  
Qian Bai ◽  
Wei Sun
Keyword(s):  
Power Quality ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Compensation Device

Study of a Multi Objective Reactive Power Compensation Device Considering Fault Current Limiting

2013 ◽  
Vol 397-400 ◽  
pp. 1868-1872
Author(s):  
Hong Mei Wu ◽  
Wen Ting Hui
Keyword(s):  
Power System ◽  
Power Quality ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Mode Switching ◽  
Necessary Condition ◽  
Fault Current ◽  
Multi Objective ◽  
Current Limiting ◽  
Compensation Device

With the increasing demands of power quality, high-quality power supply has become a necessary condition of modern social life. Power quality problems include voltage sag/swell, voltage unbalance and harmonics. To solve the above problem, a multi objective reactive power compensation device considering fault current limiting is designed, which can provide a certain degree of reactive power compensation to solve multi-objective system powered composite power quality problems during the normal working of the power system, and be able to quickly to limit the short-circuit current mode switching when power system under fault conditions. Finally, on the basis of theoretical analysis, experiments and simulations confirmed the correctness and effectiveness of the control strategy.

The Application of S7-200 PLC Reactive Compensation Device in Small Substation

2012 ◽  
Vol 479-481 ◽  
pp. 1476-1480
Author(s):  
Qing He Chu ◽  
Wen Si Cao ◽  
Zhen Nie
Keyword(s):  
Reactive Power ◽  
Control Method ◽  
High Reliability ◽  
Reactive Power Compensation ◽  
Control Device ◽  
Reactive Compensation ◽  
Reconstruction Project ◽  
Compensation Device ◽  
And Control

In the present rural power grid reconstruction project ,according to the problems of capacitor reactive power compensation in rural small substation. Take a small substation for instance, according to its operation and control method, set the criterion of the capacitor bank switching. A new high reliability, flexible reactive power compensation control device based on s7-200 PLC is designed. It plays an important role in improving the power supply , guaranteeing the quality of voltage, reducing the loss of rural power gid.

scholarly journals Method for improving performance of devices for adjustable reactive power compensation

2019 ◽  
Vol 110 ◽  
pp. 01010
Author(s):  
Vasiliy Cheremisin ◽  
Andrey Nikonov
Keyword(s):  
Power Supply ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Point Selection ◽  
Traction Power Supply System ◽  
Current Voltage ◽  
Compensation Device ◽  
Traction Power Supply ◽  
The Relationship ◽  
Traction Power

The article presents a method for selecting the parameters of the current-voltage characteristics of adjustable reactive power compensation devices used at sectioning stations of railway sections electrified by alternating current with a voltage of 27.5 kV. This technique is based on the experience of operating two types of devices in the traction power supply system. Power control of these devices is implemented by the voltage level at the switching point. Selection of the setpoint voltage and slope characteristics was done. The developed method allows increasing the efficiency of devices by eliminating the voltage losses on the active component of traction loads. That will reduce the loss of electricity in the system of traction power supply. Changing the parameters of the characteristics will increase the relationship between the reactive power consumed in the zone and the voltage measured by the devices. Following the results of the formation of the methodology, an example of the choice of characteristics for a real compensation device is presented.

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