Smart Meter for Balanced Power Distribution
A smart meter and equalization technology, applied in the measurement of electrical variables, measuring devices, instruments, etc., can solve the problems of unbalanced three-phase load of low-voltage lines, and achieve the effect of improving safety and reducing line losses.
Active Publication Date: 2015-10-28
保定市兆微软件科技有限公司
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[0004] The purpose of the present invention is to provide a smart meter for balanced power distribution. The smart meter can distribute the A-phase, B-phase and C-phase phase lines on the side of the single-phase user power supply, so as to solve the unbalanced three-phase load situation of the low-voltage line technical issues
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[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0028] refer to figure 1 , the preferred embodiment of the present invention provides a smart meter for balanced power distribution, including a power distribution conversion unit for connecting with a three-phase four-wire transmission line, and the power distribution conversion unit is used for gate A phase in the three-phase transmission line Any phase line of Phase 1, Phase B, or Phase C is output as a single-phase power supply line; it also includes a metering unit for real-time detection of electric energy on the single-phase power supply line at the output side of the power distribution conversion unit; the output terminal of the metering unit and the power distribution The control ends of the conversion units are all connected to the data pr...
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The invention discloses an intelligent electric meter with balanced power distribution. The intelligent electric meter comprises a power distribution conversion unit and a metering unit, wherein the power distribution conversion unit is used for gating any-phase line in a three-phase power transmission line as a single-phase power transmission line for outputting; the metering unit is used for detecting the electric energy on a single-phase power supply line at the output side of the power distribution conversion unit in real time; and the output end of the metering unit and the control end of the power distribution conversion unit are connected to a data processing unit. According to the intelligent electric meter with balanced power distribution disclosed by the invention, the power distribution conversion unit, which is used for gating any-phase line in the three-phase power transmission line to the single-phase power supply line for outputting, is additionally arranged, so that the intelligent electric meter can be used for switching over the power supply phase line of the single-phase power supply line according to a control command sent by the data processing unit while detecting electrical load of a user, and the electrical load of a plurality of single-phase users at the low-voltage side is balanced, and therefore, the line loss on the three-phase power transmission line is reduced, the power supply safety, reliability and power supply efficiency are improved, and a power grid can be efficiently operated.
Description
technical field [0001] The invention relates to the field of power supply and distribution, in particular to a smart meter for balanced power distribution. Background technique [0002] With the continuous improvement of people's living standards, a large number of high-power single-phase household appliances, such as: air conditioners, electric water heaters, rice cookers, microwave ovens, ovens, etc., have entered ordinary families. These household appliances bring people comfort, convenience and fast life. , It also has a certain impact on the safety and economic operation of the low-voltage power supply system of the power supply department. Due to the unbalanced single-phase power consumption of each user, the current amplitudes on the three-phase transmission lines are not equal, and the power load of single-phase users is very random, resulting in asymmetrical three-phase loads. Asymmetrical three-phase loads cause unbalanced three-phase voltages in the power grid, i...
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IPC IPC(8): G01R22/06
Inventor 孙万红姚攀欧阳杰
Owner 保定市兆微软件科技有限公司