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Photovoltaic water maker power supply used in island reef environment

An environment and water machine technology, applied in the direction of photovoltaic power generation, photovoltaic modules, electrical components, etc., can solve problems such as unsuitability, insulation influence, and failure to consider the starting current of asynchronous motors, so as to improve conversion efficiency, high reliability, and avoid The effect of loss

Active Publication Date: 2021-06-18
NAVAL UNIV OF ENG PLA
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Problems solved by technology

The current mainstream photovoltaic inverter power supply is mainly aimed at the application of new energy grid-connected inverters. The typical topology is to invert after boosting the voltage to 300-400V and directly connect to the power grid. Although this type of photovoltaic inverter power supply It has the characteristics of small size and low cost, but due to the existence of high-voltage DC links, moisture and salt spray will have an extremely adverse effect on the insulation of the high-voltage part in the island and reef environment; when using batteries as energy storage components, it is necessary to increase Additional charging and discharging circuits; this type of power supply design itself does not consider the starting current of the asynchronous motor, so the conventional photovoltaic inverter power supply is not suitable for photovoltaic water generators in island and reef environments

Method used

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  • Photovoltaic water maker power supply used in island reef environment
  • Photovoltaic water maker power supply used in island reef environment
  • Photovoltaic water maker power supply used in island reef environment

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0028] Such as figure 1 As shown, a photovoltaic water generator power supply for an island and reef environment according to an embodiment of the present invention includes: a photovoltaic panel (1), an anti-reverse connection circuit (2), a DC-DC step-down circuit (3), DC-AC inverter circuit (4), energy storage component (5), DC side support capacitor (6) and output isolation transformer (7),...

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Abstract

The invention discloses a photovoltaic water maker power supply used in an island reef environment. The photovoltaic water maker power supply comprises a photovoltaic panel (1), a reverse connection and backflow prevention circuit (2), a DC-DC step-down circuit (3), a DC-AC inverter circuit (4), an energy storage assembly (5), a DC side support capacitor (6) and an output isolation transformer (7). The power supply is especially suitable for high-salt and high-humidity environments of islands and reefs, can bear starting overload of a water maker, is suitable for short-time large-overload starting of the water maker, and is high in reliability.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power supply, and more specifically relates to a photovoltaic water generator power supply used in an island and reef environment. Background technique [0002] In the environment of islands and reefs, it is a relatively simple and reliable way to obtain fresh water by using compressed air to produce water or desalination equipment with atomization and condensation to produce water. The core of the water generator is the refrigeration compressor, which is driven by an asynchronous motor, so there is 5-7 times the starting current, and the duration is 1-3 seconds. The current mainstream photovoltaic inverter power supply is mainly aimed at the application of new energy grid-connected inverters. The typical topology is to invert after boosting the voltage to 300-400V and directly connect to the power grid. Although this type of photovoltaic inverter power supply It has the characteristics of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/30H02H11/00H02M3/156H02M7/5387
CPCH02S40/30H02H11/002H02M3/156H02M7/5387Y02E10/56
Inventor 孙盼吴旭升汪小娜孙军何笠梁彦谢海浪
Owner NAVAL UNIV OF ENG PLA
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