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Real time voltage and current phase shift analyzer for power saving applications.

Krejcar O, Frischer R - Sensors (Basel) (2012)

Bottom Line: Nowadays, high importance is given to low energy devices (such as refrigerators, deep-freezers, washing machines, pumps, etc.) that are able to produce reactive power in power lines which can be optimized (reduced).Such quality measurement is needed to allow adequate action intervention (feedback which reduces or fully compensates reactive power).The price and the size of the final product need to remain low as they are the two important parameters of this solution.

View Article: PubMed Central - PubMed

Affiliation: Department of Information Technologies, Faculty of Informatics and Management, University of Hradec Kralove, Rokitanskeho 62, Hradec Kralove 50003, Czech Republic. Ondrej.Krejcar@remoteworld.net

ABSTRACT
Nowadays, high importance is given to low energy devices (such as refrigerators, deep-freezers, washing machines, pumps, etc.) that are able to produce reactive power in power lines which can be optimized (reduced). Reactive power is the main component which overloads power lines and brings excessive thermal stress to conductors. If the reactive power is optimized, it can significantly lower the electricity consumption (from 10 to 30%-varies between countries). This paper will examine and discuss the development of a measuring device for analyzing reactive power. However, the main problem is the precise real time measurement of the input and output voltage and current. Such quality measurement is needed to allow adequate action intervention (feedback which reduces or fully compensates reactive power). Several other issues, such as the accuracy and measurement speed, must be examined while designing this device. The price and the size of the final product need to remain low as they are the two important parameters of this solution.

No MeSH data available.


User software data visualization. Input and output sinusoidal voltage and passing current are displayed in the inner window.
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f7-sensors-12-11391: User software data visualization. Input and output sinusoidal voltage and passing current are displayed in the inner window.

Mentions: Gathered data can be displayed when connected to a personal computer via a RS485 USB converter. There are many variables which are being transmitted. For visualization and setup purposes special software was designed which is able to recognize the input data string (Figure 7). Basically it is a software oscilloscope which is able to compare input and output voltage (red and green curves) and passing current running. This software is designed for online—onsite analysis. It provides valuable information about the processes inside the power line.


Real time voltage and current phase shift analyzer for power saving applications.

Krejcar O, Frischer R - Sensors (Basel) (2012)

User software data visualization. Input and output sinusoidal voltage and passing current are displayed in the inner window.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472890&req=5

f7-sensors-12-11391: User software data visualization. Input and output sinusoidal voltage and passing current are displayed in the inner window.
Mentions: Gathered data can be displayed when connected to a personal computer via a RS485 USB converter. There are many variables which are being transmitted. For visualization and setup purposes special software was designed which is able to recognize the input data string (Figure 7). Basically it is a software oscilloscope which is able to compare input and output voltage (red and green curves) and passing current running. This software is designed for online—onsite analysis. It provides valuable information about the processes inside the power line.

Bottom Line: Nowadays, high importance is given to low energy devices (such as refrigerators, deep-freezers, washing machines, pumps, etc.) that are able to produce reactive power in power lines which can be optimized (reduced).Such quality measurement is needed to allow adequate action intervention (feedback which reduces or fully compensates reactive power).The price and the size of the final product need to remain low as they are the two important parameters of this solution.

View Article: PubMed Central - PubMed

Affiliation: Department of Information Technologies, Faculty of Informatics and Management, University of Hradec Kralove, Rokitanskeho 62, Hradec Kralove 50003, Czech Republic. Ondrej.Krejcar@remoteworld.net

ABSTRACT
Nowadays, high importance is given to low energy devices (such as refrigerators, deep-freezers, washing machines, pumps, etc.) that are able to produce reactive power in power lines which can be optimized (reduced). Reactive power is the main component which overloads power lines and brings excessive thermal stress to conductors. If the reactive power is optimized, it can significantly lower the electricity consumption (from 10 to 30%-varies between countries). This paper will examine and discuss the development of a measuring device for analyzing reactive power. However, the main problem is the precise real time measurement of the input and output voltage and current. Such quality measurement is needed to allow adequate action intervention (feedback which reduces or fully compensates reactive power). Several other issues, such as the accuracy and measurement speed, must be examined while designing this device. The price and the size of the final product need to remain low as they are the two important parameters of this solution.

No MeSH data available.