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Intelligent photovoltaic off-grid inverter system and power utilization control method thereof

A photovoltaic off-grid and inverter technology, applied in photovoltaic power generation, power network operating system integration, information technology support system, etc. Inability to switch and other issues, to achieve the effect of reducing electricity costs, efficient use, and reducing waste

Active Publication Date: 2014-10-22
EAST GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most photovoltaic off-grid inverters do not have much intelligent control, and they are all done as an uninterruptible power supply, without considering the user's economy and practicality from the user's standpoint
In addition, in many countries, electricity charging standards are also different in different time periods. During the peak period of electricity consumption, the electricity fee is high, and the cost borne by users increases.
The current photovoltaic off-grid inverter can only be used to ensure the uninterrupted power supply of the power supply, but it cannot switch between different power consumption modes according to user needs to reduce its power consumption cost

Method used

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  • Intelligent photovoltaic off-grid inverter system and power utilization control method thereof
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  • Intelligent photovoltaic off-grid inverter system and power utilization control method thereof

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Embodiment

[0027] Please refer to figure 1 , 2 , the intelligent photovoltaic off-grid inverter system described in the present invention includes an inverter, a rectifier, a solar controller MPPT and a battery BAT, and also includes a static transfer switch STS, a transformer TRANS and a network intelligent switch BYPASS (BYP), Wherein, the static transfer switch STS includes switchable STS1 and STS2.

[0028] The input terminal of the rectifier is connected to the AC power supply (grid), the output terminal of the rectifier is connected to the input terminal of the inverter, the output terminal of the rectifier is connected in parallel with capacitor C1, the input terminal of the inverter is connected in parallel with a capacitor C2, and the output terminal of the inverter is connected to the transformer TRANS, the output terminal of the transformer TRANS is connected in parallel with a capacitor C3 and then connected with the static transfer switch STS2, the static transfer switch ST...

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Abstract

The invention relates to the technical field of photovoltaic inverters, and specifically discloses an intelligent photovoltaic off-grid inverter system and a power utilization control method thereof. The intelligent photovoltaic off-grid inverter system includes an inverter, a rectifier, a solar energy controller and a storage battery, an input end of the rectifier is connected with an alternating current power supply, an output end is connected with an input end of the inverter, an output end of the inverter is connected with a load, an input end of the solar energy controller is connected with a solar cell panel, and an output end is connected with the storage battery and the inverter. The control method includes switching of a staggering peak power utilization mode, an AC charging-off mode and a general mode according to requirements of users, and uninterruptible power supply for the users can be guaranteed when commercial power is abnormal. The intelligent photovoltaic off-grid inverter system and the power utilization control method thereof in the invention have the advantages of uninterrupted power supply guarantee, efficient use of electric energy, reduced power utilization cost of users, and convenient use.

Description

technical field [0001] The invention relates to the technical field of photovoltaic inverters, in particular to an intelligent photovoltaic off-grid inverter system and a power consumption control method thereof. Background technique [0002] At present, most photovoltaic off-grid inverters do not have much intelligent control, and they are all done as an uninterruptible power supply, without considering the user's economy and practicality from the user's standpoint. In addition, many countries have different charging standards for electricity consumption in different time periods. During peak periods of electricity consumption, electricity charges are high, and the cost borne by users increases. The current photovoltaic off-grid inverter can only be used to ensure the uninterrupted power supply of the power supply, but it cannot switch different power consumption modes according to user needs to reduce its power consumption cost. Contents of the invention [0003] The pr...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02J7/35H02J7/00
CPCY02B10/70Y02B70/30Y02E10/56Y04S20/20
Inventor 贾芳宋清华
Owner EAST GRP CO LTD
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