Static VAr compensator control for power systems with nonlinear loads

2004 ◽  
Vol 151 (1) ◽  
pp. 78 ◽  
Author(s):  
J. Su ◽  
C. Chen
Keyword(s):  
Power Systems ◽  
Static Var Compensator ◽  
Nonlinear Loads

scholarly journals Harmonic interaction of a static Var compensator with AC power system containing multiple non-linear loads

2020 ◽  
Vol 40 (3) ◽  
pp. 21-31
Author(s):  
Mohamed Nassim Kraimia ◽  
Mohamed Boudour
Keyword(s):  
Power System ◽  
Power Flow ◽  
Fourier Transforms ◽  
Current Source ◽  
Harmonic Distortion ◽  
Static Var Compensator ◽  
Nonlinear Loads ◽  
Compensating Devices ◽  
Ac Transmission ◽  
The Impact

In this paper a study of the impact of the harmonics generated by a static Var compensator (SVC) is presented. The SVC is modeled, in the harmonic domain, as a coupled current source by using the complex Fourier transforms. Then, this model is converted to polar form to be integrated into the harmonic power flow program. This approach has been carried out on the IEEE 14 bus test power system, in order to show its effectiveness in evaluating the impact of harmonics, injected by the shunt compensating devices, and its interaction with the AC transmission system, in meshed power networks. Since the SVC consists of a thyristorcontrolled reactor (TCR) and a fixed capacitor, the harmonic currents are functions of the TCR thyristors firing angles. The variation of the total voltage harmonic distortion as function of firing angle changes and location of nonlinear loads is clearly presented and discussed.

Hybrid adaptive robust control of static var compensator in power systems

2013 ◽  
Vol 24 (12) ◽  
pp. 1707-1723 ◽  
Author(s):  
Lei Zhang ◽  
Aimin Zhang ◽  
Zhigang Ren ◽  
Guoqi Li ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Robust Control ◽  
Power Systems ◽  
Adaptive Robust Control ◽  
Static Var Compensator

A Quick Response Power Factor Detector for Nonlinear Loads

2013 ◽  
Vol 284-287 ◽  
pp. 2433-2438
Author(s):  
Maoh Chin Jiang ◽  
Bing Jyun Shih
Keyword(s):  
Power Systems ◽  
Transient Response ◽  
Power Factor ◽  
Nonlinear Loads ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Active Power Filters ◽  
Power Filters ◽  
Low Pass ◽  
Fast Power

A fast power factor detector for nonlinear loads is proposed to overcome the drawback of conventional detectors, which can measure only the power factor of linear loads. The design of the proposed detector is based on the concept of additional characteristic of trigonometric function. It does not require any low-pass filter or integrator. Therefore, the transient response of the proposed detector is much faster than that of the conventional detectors. The theoretical response time of the proposed detector is less than one-fourth of a cycle. Because of its promising accuracy and rapid transient response, it can be used in many systems such as the control of power systems, and active power filters, to improve their transient performance. Theoretical analysis and experimental results are also detailed in this paper.

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