voltage reduction Articles
-
Development of modulation strategies for three-phase to two-phase matrix converters
In this paper, the modulation strategy is developed for three-phase to two-phase matrix converters for synthesising balanced and unbalanced output voltages from balanced and unbalanced input voltages. Reduction of low order input current harmonics with sinusoidal output voltages is achieved by using the proposed switching strategies. The other advantage of the proposed method is the significant ...
-
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 ...
-
Maximising Savings with Voltage Optimisation
This article compares different voltage optimisation technologies and illustrates the advantages of the comec inv (induced negative voltage) technology for achieving the best energy saving results in commercial facilities. Saving electricity by regulating and controlling voltage is not a novel idea. The basic principles stem from the fundamental laws of electricity, and the UK market has been ...
-
Improvement of power supply to rural customers through grid-interactive distributed generation
The integration of Distributed Generation (DG) into distribution grid systems introduces problems in network operation, control and protection. Key issues associated with DG inclusion are voltage or current control, cost-effective operation, protection coordination and network transients. Better understanding of these issues and finding solutions to these problems are important to power ...
-
Distribution system insulator monitoring using video surveillance and support vector machines for complex background images
Development of substation monitoring system (SMS) with improved features for substation automation purposes has become one of the potential areas of research particularly in developing countries like India. The unending SMS automation systems usually incorporate protection of the distribution system from different faults based on monitoring of parameters, such as voltage, current and so forth. ...
-
Performance improvement of indirect vector controlled induction motor drive using multi–level inverter
Multi–level inverter has emerged as an important topology in the area of high power–medium voltage control applications due to its several advantages such as a better output voltage with reduced total harmonic distortion (THD), reduction of voltage ratings of the power semiconductor switching devices and also the reduced electro–magnetic interference problems etc. This paper presents the ...
-
Behaviour of Microbial Fuel Cell in a start-up phase
A Single-Chamber Microbial Fuel Cell (SCMFC) was constructed and run in a sequential feed-and-draw cycle operation. Anaerobic mixed bacterial culture and wastewater obtained from a local municipal wastewater treatment plant were used as biocatalysts and media, respectively. The SCMFC behaviour in a start-up phase was examined using the electrical potential (voltage) profiles, and further ...
-
Power conditioning of an uncontrolled micro-hydroturbine-driven induction generator for distributed generation using a battery energy storage system
Distributed Generation (DG) and its interconnection to the AC power grid is a relatively new concept. DG employs small generators, which are distributed throughout the power system. The electricity is usually generated by renewable energy sources such as wind, hydro and tidal, which are intermittent in nature. These generators connected to the AC grid may lead to severe power quality problems. ...
-
8 Parts of Electric Energy Meter
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 ...
-
What is HV and LV Power Distribution System?
An HV power distribution system simply means a high voltage distribution system while an LV is a low voltage or tension power distribution system. LV power supply can be around 230 Volts for a single-phase connection and 400 Volts for a three-phase connection. On the other hand, the HV distribution system can even reach 11Kilo-Volts, meaning it is highly used by bulk power purchasers like ...
-
A simple carrier-based neutral point potential regulator for three-level diode clamped inverter
Three-level diode clamped inverter is a proven technology nowadays in medium and high power applications. Despite of its several advantages such as harmonic reduction and achieving high voltage and high power capabilities without series and parallel connections of switching devices, neutral point potential (NPP) variation is the inherent problem with this topology. This paper presents a simple ...
-
New topology for management of bi-directional power flow between vehicle and grid with reduced ripple current at unity power factor
In this paper, a new topology of single-phase pulse width modulated (PWM) AC-DC converter is proposed for bidirectional power flow between plug-in hybrid electric vehicle (PHEV) and the grid. This converter consists of a PWM voltage source converter (VSC) and a ripple reduction circuit. The ripple reduction circuit consists of a switching leg and an inductor. The inductor is connected between ...
-
Fuel Cell Voltage Monitoring Considerations
Knowing what’s happening inside a fuel cell is a critical function, especially as fuel cells are continuing to be developed. One important aspect of this is to measure the voltageof each cell in a stack. Although this may sound trivial, it can be more complex and more expensive than it may at first appear due to high voltages, high channel counts,communication types, etc. There are a few ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you