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Distributed photovoltaic grid-connected system power parameter two-way measurement device

A technology of distributed photovoltaic and power parameters, applied in measurement devices, photovoltaic power generation, power consumption devices, etc., can solve the problems of incomplete measurement, unsatisfactory measurement accuracy, and high cost

Active Publication Date: 2018-07-03
东台市智创精密制造产业园投资有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a distributed photovoltaic grid-connected system power parameter two-way measurement device to solve the problems existing in the prior art or the measurement accuracy is relatively unsatisfactory, the measurement is not comprehensive, or the cost is too high

Method used

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  • Distributed photovoltaic grid-connected system power parameter two-way measurement device

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Embodiment

[0028] A two-way measuring device for power parameters of a distributed photovoltaic grid-connected system, such as figure 1 , including a single-chip microcomputer 1, an AC power measurement circuit 2, and a serial communication interface 3. The single-chip microcomputer 1 is respectively connected with an AC power measurement circuit 2 and a serial communication interface 3. The AC power measurement circuit 2 includes a power metering chip CS5463, an AC voltage acquisition unit, The AC current acquisition unit, the AC voltage acquisition unit is connected between the distribution network 7 and the power grid 8, the AC current acquisition unit is connected between the distribution network 7 and the power grid 8, and the electric energy metering chip CS5463 is respectively connected to the AC voltage acquisition unit, For the AC current acquisition unit, the single-chip microcomputer 1 adopts the chip STC12C5A60S2, and the single-chip microcomputer 1 is also connected with the ...

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Abstract

The invention provides a bidirectional measurement device of electric quantity parameters of a distributed photovoltaic grid-connected system. The bidirectional measurement device comprises a single chip microcomputer, an alternating-current electric energy measurement circuit and a serial communication interface, wherein the single chip microcomputer is connected with the alternating-current electric energy measurement circuit and the serial communication interface respectively; the alternating-current electric energy measurement circuit comprises an electric energy metering chip CS5463, an alternating-current voltage acquisition unit and an alternating-current current acquisition unit; the alternating-current voltage acquisition unit is connected between a power distribution network and a power utilization network; the alternating-current current acquisition unit is connected between the power distribution network and the power utilization network; the electric energy metering chip CS5463 is connected with the alternating-current voltage acquisition unit and the alternating-current current acquisition unit respectively; the single chip microcomputer adopts a chip STC12C5A60S2, and is further connected with output voltage and output current of a photovoltaic module.

Description

technical field [0001] The invention relates to a bidirectional measuring device for electric quantity parameters of a distributed photovoltaic grid-connected system, which is used for monitoring the operating state of the distributed photovoltaic grid-connected system after it is connected to a distribution network, and belongs to the technical field of photovoltaic power generation. Background technique [0002] With the improvement of human living standards, human beings have higher and higher requirements for living environment and energy. Due to the depletion of fossil energy and increasingly serious environmental problems, it is imminent to find new clean energy. Solar energy is inexhaustible and inexhaustible, and is considered to be one of the effective ways to solve the contradiction between energy and the environment. As distributed power generation and smart grid become hot topics, a single large power grid operation mode can no longer meet human requirements for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38G01R21/00G01R21/06
CPCG01R21/002G01R21/003G01R21/005G01R21/006G01R21/06H02J3/383Y02E10/56
Inventor 姜程程姜海涛李志伟卢双
Owner 东台市智创精密制造产业园投资有限公司
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