نتایج جستجو برای: instantaneous reactive compensation
تعداد نتایج: 216498 فیلتر نتایج به سال:
In this paper, model predictive control (MPC) is proposed for single-phase electric springs (ESs) with the help of existing δ control, which realized by controlling instantaneous phase angle predefined sinusoidal reference a certain controller. System modeling analyzed first to get differential forms state variables. The discrete-time space obtained through first-order approximation. Critical l...
high power and medium voltage (MV) applications need Controlled rectifiers such as 12-pulse converters, because of the high reliability, low complexity, robustness and low power losses. But having the drawback of harmonics generation causes power quality problem. Power quality can be improved with passive filters but having disadvantages such as dependency on the source impedances, parallel and...
Reactive power compensation is an important challenge in current and future smart power systems. However, in the context of reactive power compensation, most existing studies assume that customers can assess their compensation value, i.e., Var unit, objectively. In this paper, customers are assumed to make decisions that pertain to reactive power coordination. In consequence, the way in which t...
active filters have proven to be more effective than passive techniques to improve power quality and to solve harmonic and power factor problems due to nonlinear loads. this paper proposes a control scheme based on the instantaneous active and reactive power. the inverter of this active filter is a three-phase, two-level converter. space vector technique is used as modulators and pattern genera...
This project presents reactive power compensation in a distribution power system. DSTATCOM (distribution static compensator) is a reactive power compensator for power quality improvement in a three phase four wire distribution system. A voltage source converter (VSC) based DSTATCOM with a zig-zag transformer is used for the compensation of reactive power for voltage regulation along with load b...
Abstract This paper proposes a cascaded low-pass filter (CLPF) scheme for the control of unified power quality conditioner (UPQC) installed enhancing an electric vehicle (EV) charging station. With incorporation UPQC, EV station draws sinusoidal currents at unity factor and supply voltage is maintained nominal value charger input. In CLPF scheme, α–β components load current are individually pro...
Experimental validation in addition to detailed modeling and simulation of a new transformer-less series compensator for linecommutated HVDC rectifier terminal is presented. The compensator employs very small capacitors compared to those in conventional shunt compensators or fixed series capacitors for reactive power compensation of such links. The proposed device demonstrates fundamental-frequ...
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