Voltage Stabiliser Articles & Analysis: Older
28 articles found
AC 1.0 KV solar cables and DC cables serve distinct purposes in solar energy systems, each offering unique characteristics tailored to their respective applications. Here's an overview of the key differences: Voltage Type: AC 1.0 KV solar cables are designed for alternating current (AC) applications, typically used in grid-connected solar systems where electricity flows bidirectionally between ...
The power quality monitoring application dQuality from Dlaboratory Sweden AB (publ) has turned out to be not only an efficient solution monitoring reactive power from wind production, or keeping track of harmonic distortions, but a useful tool for grid planning and investment. Monitoring power quality has thus turned out to be essential in creating a sustainable and reliable power grid. In the ...
As a new type of green energy technology, organic solar cells (OPVs), the core of which is to use photoelectric conversion organic materials to convert light energy into electrical energy, have the advantages of all-solid-state, low cost, low temperature fabrication and large-area flexible devices. The photocurrent flow of OPV depends not only on photogenerated carriers but also on the interface ...
The reactive power quadrants in electric meter refer to dividing a plane coordinate system into four regions, with the horizontal axis representing reactive power and the vertical axis representing active power. Each region represents a different combination of reactive power and active power states. These four regions are known as quadrants I, II, III, and IV, each with its own meaning and ...
An electric energy meter is an instrument used to measure electrical energy, which is also known as a kilowatt-hour meter or electricity meter. Its unit of measurement is the degree or kilowatt-hour. It is a product of power and time and can be used to measure the power consumption of end users, serving as the basis for billing by electric companies. Electricity is an indispensable energy source ...
The Power Quality problems of an electrical distribution network are often generated locally within the structures and can depend on various situations, such as, for example, construction works, switching on high loads, faulty distribution components and particular basic electrical disturbances. Furthermore, external causes such as atmospheric events (hurricanes, lightning, snow, ice and ...
The Power Pilot power integrator has been specifically designed for use in hydroelectric plants with off-grid installations. The Power Pilot has been designed to allow the delivery of power in typically critical load conditions for the hydroelectric power production unit only and to improve the quality of the power supply to the users. Dedicated to Off-Grid Installations Those who manage a ...
With the increasingly widespread use of sensitive electrical and electronic equipment, it is essential to have a “clean” and stable mains power supply to protect and make critical applications reliable. IREM Steroguard Line Conditioners represent the solution for most of the disturbances coming from the electrical network: they offer complete galvanic isolation of the ...
Energy solutions provider Zenith Energy have signed a power purchase agreement (PPA) with Dacian Gold to deliver a 17MW gas fired power station at Mt Morgans Gold Project (MMGP) in Western Australia. Fuel gas for the power station will be delivered via a new four kilometer gas pipeline lateral supplied by APA Group. Under the terms of the PPA, Zenith Energy will construct the power station to ...
Or it might have the rectifier and capacitors as well. Or it might even have a voltage stabiliser in it that removes the sawtooth ripple before it gets into the following gear. ...
Optimal reactive power dispatch (ORPD) is one of the important non–linear mixed–variable optimisation problems in power system which includes both continuous and discrete control variables satisfying both equality and inequality constraints. This paper presents a new evolutionary optimisation algorithm to solve the optimal reactive power dispatch problem with operational constraints using the ...
This paper describes a new approach to generation expansion planning (GEP) problem to optimise simultaneously multiple objectives such as cost and stability margin. It is formulated as a combinational optimisation problem in order to determine the type and capacity of the new generations as well as their timing and placement. This study presents a comprehensive model of hierarchical optimisation ...
The paper presents voltage stability analysis of radial distribution networks. A new voltage stability index is proposed for identifying the node, which is most sensitive to voltage collapse. It is shown that the node, at which the value of voltage stability index is minimum, is more sensitive to voltage collapse. For the purpose of voltage stability analysis, constant power, constant current, ...
To enhance the distribution power quality and maintains the voltage stability is a challenging tasks in the complex distribution network. This can be achieved through the distributed generation (DG). In this paper, a hybrid technique has been proposed which improves the distribution stability by allocating the DG at the optimal place. This technique uses the artificial neural network (ANN) and ...
In heavily loaded systems, voltage stability limit is usually dominant and voltage instability is usually observed following large disturbance. This is typically the case in the deregulated environment as the transmission systems are operating under more stressed condition due to increased transaction level associated with open access. In this paper simple voltage stability analysis is carried ...
The impact of the wind generation on the power systems is no longer negligible if high penetration levels are going to be achieved. It is very important to boost the transfer capability of the transmission system while improving the utilisation of transmission assets to accommodate high penetration of wind power on the network. Hence, more sophisticated control schemes using advanced power ...
Using the proposed switching strategy, the voltage of the inverter capacitors in SMES can be independently controlled. ...
The paper presents a novel stabilisation scheme system for a wave energy converter (WEC) using permanent magnet linear generator (PMLG) connected to a six-pulse diode rectifier. ...
Today's power electronics can confer high-performance adjustment capabilities on any technological object, including the frequency-power and voltage tuning of modern, synchronous-type wind turbines. However, this will not enable such devices to steadily produce electric power from an uncontrolled mechanical energy. Thus they cannot be considered independent generation units: the need to ...
In order to emphasise the usefulness of such model, three pulse-width-modulated (PWM) multi-loops control schemes are proposed and developed in the aim of ensuring a unity power factor at the AC-source side and a regulated voltage at the DC-load side. The first one uses the simple and robust hysteretic-based controller; the second one employs a conventional PI regulator; whereas ...