voltage stabilizer Articles
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Voltage stability of radial distribution networks for different types of loads
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, ...
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Identification of weak buses and elements participation in voltage instability of large multi bus power system
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 ...
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Voltage Stabilizer - Buy Voltage Stabilizers Online at Lowest Prices in India
All of us know what voltage fluctuations can do to electrical appliances like air conditioners, refrigerators, televisions etc. Voltage Stabilizers are designed specifically for this purpose. Voltage Stabilizers regulate voltage and provide constant voltage to your expensive appliances. They prevent permanent damage to appliances caused because of high or low voltage. Choose from a wide ...
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Optimal generation expansion planning considering maximum loadability limit
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 ...
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Optimal reactive power dispatch based on the improved seeker optimisation algorithm and statistical analysis
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 ...
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Improved genetic algorithm for voltage security constrained optimal power flow problem
Voltage stability has become an important issue in the planning and operation of many power systems. Contingencies such as unexpected line outages in a stressed system may often result in voltage instability which may lead to voltage collapse. This paper presents a Genetic Algorithm (GA) approach for solving the Voltage Security Constrained Optimal Power Flow (VSC-OPF) problem. Base-case ...
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Steroguard Line Conditioners: customized Power Quality
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 ...
By IREM SpA
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Optimal location of DG for maintaining distribution system stability: a hybrid technique
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 ...
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Weakest bus identification for optimal location for FACTS systems in multimachine power network
As a result of the electronic revolution in power electronics technology, a number of control devices under the term flexible AC transmission system (FACTS) have been proposed and implemented and this has led to improvements in efficient energy transfer, reduced looses and maximised use of existing infrastructure. FACTS controllers have been designed using high power electronic system components, ...
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Stabilisation of grid connected wind farms using doubly–fed induction generators with FACTS controllers
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 ...
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PowerSines LEC Saves 30% on Outdoor Lighting & High Masts in Savannah Port Case Study
Facilitating global trade through strategic U.S. East Coast gateways, the Georgia Ports Authority is a leader in the operation of modern terminals and in meeting the demands of international business. The port of Savannah specializes in the handling of container, reefer, breakbulk and RoRo cargoes. Georgia Ports Executive Director, Curtis Foltz, states that "This [PowerSines] new technology is ...
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Impacts of dynamic reactive power compensation devices on the performance of wind power generators
This paper investigates the main impacts of dynamic reactive power compensation devices on the performance of induction machine-based wind power generators. The dynamic reactive power compensation devices analysed are the SVC (Static Var Compensator) and the DSTATCOM (Distributed Static Synchronous Compensator). The usage of these devices as a power factor regulator or a voltage regulator is ...
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A combined multipulse-multilevel inverter based STATCOM for improving the voltage profile and transient stability of power system
In this paper, a new combined multipulse-multilevel inverter topology is proposed for static synchronous compensator to regulate AC supply voltage at a constant level. A detailed analysis of the operating characteristics of the various inverter topologies in respect of total harmonic distortion (THD) and device count are compared in the paper. A closed loop decoupled control strategy for ...
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Meaning and role of reactive power quadrants in electric meter
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 ...
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Dacian Gold’s Mt Morgans Gold Project, Australia - Case study
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 ...
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Change 60Hz to 50Hz Power
In conventional power supplies, the mains is rectified (that means the negative parts of the main cycle are flipped over to become positive). This gives 50 or 60 positive pulses per second. These pulses are used to charge up capacitors that store the charge between top ups. If you put a scope on the capacitor, you will see a sawtooth waveform that shows the top of the pulse, then the voltage ...
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Application of Buffer Layer Materials to Improve the Stability and Photoelectric Conversion Efficiency of OPV Devices
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 ...
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Advanced Voltage Optimsation Technology
Electric appliances with inductive characteristics, such as refrigerators, air conditioners and compressors are more efficient when the voltage suppliedis regulated and stabilised. This article will explain the physical principles behind voltage reduction on inductive loads, and will include case studies depicting energy savings using powersines comec (a universal energyefficiency controller) in ...
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Study, modelling and control of a single-phase power factor corrector based on the Sheppard-Taylor topology
In this paper, a single-phase power factor corrector (PFC) based on the Sheppard-Taylor topology is studied. A novel mathematical representation of the converter is elaborated using the state-space averaging technique. 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 ...
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Why the fossil-fuelled reactor fleet in France will not be affected by an evolution of the wind power capacity
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 ...
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