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With the proliferation of Static Var Compensator (SVC) installations, it is important for owners to understand all aspects of design, especially those based on network conditions. This paper discusses the impact of system changes on the existing Chester SVC installation. Specifically, the frequency response of the system is observed as seen from the SVC bus and the affect on the SVC harmonic performance...
This paper presents the power quality analysis of a Synchronous Static Series Compensator (SSSC) connected to a high-voltage transmission network. The analysis employs a simplified harmonic equivalent model of the network that is described in the paper. To facilitate the calculations, a software toolset was developed to measure the voltage harmonics content introduced by the SSSC at the Point of Common...
This paper proposes a novel topology for a three-phase hybrid passive filter (HPF) to compensate for reactive power and harmonics. The HPF consists of a series passive filter and a thyristor-controlled-reactor-based variable-impedance shunt passive filter (SPF). A mutual-inductance design concept is used to reduce the series passive filter inductance rating. The special features of the proposed HPF...
In this paper, a novel principle of a power quality conditioner based on controllable impedance is proposed for high voltage AC power distribution systems application. A linear transformer is employed to act as controllable impedance under the control of power electronic inverter. On the one hand, the transformer can always exhibit nearly zero impedance to harmonic current. Thus, the harmonic current...
Power system signals are often contaminated with harmonics and noise. It is preferable to determine these harmonics for analysis, control and design of power system devices and protection. This paper presents an efficient technique for harmonics current estimation based on adaptive notch filter (ANF). The proposed filter structure is tested, simulated and implemented in a digital signal processor...
Shutdowns may affect seriously harmonic resonant frequencies and may initiate new resonances in power systems in presence of series and shunt capacitors which are used as compensators to improve system operational conditions. Influences of these shunt and series capacitors on harmonic resonance conditions in presence of other harmonic sources are studied in this paper. New harmonic resonances are...
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