Apparatus and method for obtaining electricity usage information
A technology for power consumption information and processing devices, applied in the direction of selection devices, measuring devices, electrical signal transmission systems, etc., can solve the problems of bulky detection devices, occupying a large space, and large volume of isolated power supply 110, etc., to achieve small size Effect
Active Publication Date: 2017-11-17
刘兵
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Problems solved by technology
However, due to the large volume of the isolated power supply 110 and the need to provide the isolated DC / DC circuit 150 and the optocoupler component 140 for the RS485 circuit 130, the detection device 100 is bulky
If multiple measuring devices 100 are used to monitor multiple power supply sub-circuits respectively, it will take up a lot of space, so this proposed solution is difficult to be applied in practice
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[0029] figure 2 A schematic diagram showing a device for acquiring power consumption information according to an embodiment of the present invention. as attached figure 2 As shown, the non-isolated power supply 210 is used to convert the input AC power into DC power to provide a suitable working voltage VDD to the data acquisition and processing circuit 220 . The value of the voltage VDD will be determined according to the working voltage of the data acquisition and processing circuit 220 . The data acquisition and processing circuit 220 is used to detect the working parameters of a coupleable power supply circuit 900A. The working parameters include working current, working voltage, residual current, power factor and working temperature of the power supply circuit 900A. Here, the power supply circuit 900A can be either figure 1 The power supply circuit 900 for a measurement device 100 shown in , may also be any sub-circuit forming the power supply circuit 900 . In one ...
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The present invention relates to a device for obtaining electricity consumption information, comprising: a data acquisition and processing circuit for detecting operating parameters related to a coupleable power supply circuit; a non-isolated power supply for converting alternating current into direct current to supply The data acquisition and processing circuit provides a suitable working voltage; the data communication module is used to modulate the detected working parameter to a predetermined frequency, wherein the modulated working parameter can be sent at a predetermined data transmission rate, and the predetermined frequency Higher than the predetermined data transmission rate so that the transmitted operating parameters can be demodulated; an isolation component is used to provide electrical isolation and signal transmission isolation to couple and isolate the modulated operating parameters. The device can not only realize sub-item metering of electricity consumption, but also has the advantage of small volume.
Description
technical field [0001] The invention relates to the technical field of power electronics, in particular to a device and method for acquiring power consumption information. Background technique [0002] With the rapid economic development, the impact of energy consumption and environmental pollution on people's lives has received more and more attention. Energy conservation and emission reduction has become a social issue related to the national economy and people's livelihood. The scientific use of electricity for the purpose of rational and economical use of electricity is one of the focuses of energy conservation and emission reduction. Timely and accurate acquisition of power consumption information, and energy consumption analysis and power consumption management based on the power consumption information are the basis of scientific power consumption. [0003] attached figure 1 It is a technical solution for obtaining electricity consumption information. as attached ...
Claims
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IPC IPC(8): G01R31/00
CPCG08C19/12H04Q9/00H04Q2209/10H04Q2209/30H04Q2209/60H04Q2209/823F03D7/0284
Inventor 刘兵
Owner 刘兵