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A weak light and weak wind charging control circuit

A charging control and circuit technology, applied in the field of weak light and weak wind charging control circuits, can solve the problems of wasting energy, unutilized output energy of photovoltaic power generation or wind power generation, etc.

Active Publication Date: 2018-05-18
SHENZHEN HUAJIE ELECTRICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, the output energy of photovoltaic power generation or wind power generation is not utilized, and part of the energy is wasted.

Method used

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  • A weak light and weak wind charging control circuit
  • A weak light and weak wind charging control circuit

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Embodiment Construction

[0011] figure 1 It is an embodiment of the weak light and weak wind charging technology of the present invention. The following uses photovoltaic power generation as an example to further explain the drawings and the invention. If it is wind power generation, it is necessary to rectify and filter the generated AC power into a DC output.

[0012] figure 1 In the circuit diagram shown, there are three dotted boxes A, B, and C. The circuit in the dotted box of A is a window comparator, the circuit in the dotted box of B is a booster, and the circuit in the dotted box of C is a synchronous control.

[0013] First explain the function of the A dotted box as a window comparator. Assume that the DC voltage generated by photovoltaic power generation is Uin (hereinafter referred to as Uin is the input voltage), where (1) terminal is positive and (2) is negative, and the input voltage Uin is the power supply for the window comparator, and the window comparator can sense the Uin voltage...

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Abstract

The invention relates to a weak light and weak wind charging control circuit and belongs to the electric control energy saving technical field. Storage batteries are configured for photovoltaic power generation and wind power generation, while, when the voltage of generated power is lower than the voltage of the storage batteries under the condition that light is weakened or wind is weakened, charging cannot be realized, and at this moment, light energy or wind energy is not utilized. The weak light and weak wind charging control circuit of the invention is composed of a window comparator, a booster and a synchronous control circuit; when the voltage of generated power is higher than the voltage of the storage batteries, the normal charging of the storage batteries is not influenced, and when the voltage of the generated power is lower than the voltage of the storage batteries, a voltage boosting circuit is started, and the storage batteries can be continuously charged, and the energy of weak light and weak wind can be utilized; and since power generated under weak light and weak wind conditions is weak, the synchronous control circuit is additionally adopted, so that electric energy transmission efficiency can be increased. The weak light and weak wind charging control circuit is especially suitable for unattended small-scale power supply systems, such as photovoltaic power generation and wind power new energy powered street lamps and monitoring systems of high-rise towers.

Description

technical field [0001] The invention is a weak light and weak wind charging control circuit, which belongs to the technical field of electric control and energy saving, and is especially suitable for use as an unattended small-scale power supply system, such as a street lamp powered by photovoltaic power generation and wind power generation new energy, and a monitoring system for high-rise iron towers. Wait. Background technique [0002] The current photovoltaic power generation and wind power generation are often equipped with batteries, which charge and store electric energy during the day and when there is wind, and maintain power supply for loads at night and when there is no wind. However, when the light or wind weakens and the output voltage of photovoltaic power generation or wind power generation is lower than the battery voltage, charging stops. At this time, the output energy of photovoltaic power generation or wind power generation is not utilized, and part of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/35
CPCH02J7/35Y02E10/56Y02E10/76
Inventor 徐华丁勤何曙光李智铭
Owner SHENZHEN HUAJIE ELECTRICAL TECH
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