Main Voltage - an overview | ScienceDirect Topics
The purpose of a mains power supply is to convert the power delivered to its input by the sinusoidally alternating mains electricity supply into power available at its output in the form of a smooth and constant direct voltage.
Main Transformer - an overview | ScienceDirect Topics
The main transformer is a single-phase five-limb core transformer that is structured such that the LV, MV, and HV windings fitted on three main limbs are connected in parallel, with a single-limb capacity of 334 MVA, a total capacity of 1000 MVA, and a rated voltage of 1050/3/525/3/110 kV.
Control of a 3-phase 4-leg active power filter under non-ideal …
2008年1月1日 · In this paper, a new 3-phase 4-wire and 4-leg shunt APF control algorithm has been proposed to improve the performance of the 4-leg APF under unbalanced non-linear loads and non-ideal mains voltage cases. The new control theory has been presented, which is suitable for 4-wire shunt APF design under unbalanced and distorted mains voltage cases.
Harmonic and reactive power compensation with shunt active …
2005年6月1日 · This paper presents a new control algorithm for an active power filter (APF) to compensate harmonic and reactive power of a 3-phase thyristor bridge rectifier under non-ideal mains voltage scenarios. Sensing load current, dc bus voltage and source voltages compute reference currents of the APF.
Performance evaluation of a low-voltage SVC utilizing IoT …
Key findings include enhanced reactive power compensation, voltage stabilization (minimum voltage not less than 218 V), improved system efficiency (reactive power demand from the source near zero most of the time), and significant improvements in power quality and grid stability.
Characterizing and monitoring voltage transients as problem to ...
2012年12月1日 · In accordance with this approach, this paper presents a study of the sensitive loads connected to the mains network, together with the identification of the voltage transient events (slopes, amplitude and duration) present in the …
Supply Voltage - an overview | ScienceDirect Topics
Supply voltage refers to the voltage level provided to different components of a computer system in order to ensure their proper functioning. It is determined by the CPU and communicated to the VRM through a number called VID (voltage identification).
Power quality improvement under nonideal AC mains in …
2014年1月1日 · A MATLAB based model of three-phase DSTATCOM is developed under distorted and unbalanced voltage of ac mains to validate the proposed control algorithm. Distortion and unbalanced voltages of ac mains are realized by injecting harmonics voltages and reducing phase voltages.
Supply Impedance - an overview | ScienceDirect Topics
Read the mains AC voltage with a true rms voltmeter, at the incoming supply or a socket adjacent to it. (ii) Decide on a known, resistive load (a heater is best) to be connected to the supply.
Voltage sag and swell mitigation based on modulated carrier PWM
2015年3月1日 · The on-line observer acts as a low pass filter and provides the fundamental component in the mains voltage u 1 = V a · sin(ωt) as well as the quadrature voltage u 2 = V a · cos(ωt). These signals, which are devoid of the harmonics, have been used to estimate the peak as: V a = u 1 2 + u 2 2.