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An analog maximum power judgment circuit

A technology for judging circuits and maximum power. It is applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc. It can solve the problems of lack of popularization and high price for civilian use, and achieve the effects of improving reliability, increasing response speed, and simplifying circuit structure.

Active Publication Date: 2016-06-15
北京天宇航天新材料科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the biggest problem with the product of analog quantities is that the price is too high, and it is meaningless for basic civilian use

Method used

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] The invention provides an analog maximum power judging circuit for determining the output power of a solar panel. Such as figure 1 As shown, the described analog maximum power judging circuit includes a load, an operational amplifier U 1A , op amp U 1B , Transistor Q 1 , Transistor Q 2 , resistance R 1 , resistance R 2 , resistance R 3 , resistance R 4 , resistance R 5 and current sense resistor R s . The positive pole of the solar panel (solar photovoltaic panel) is connected to one end of the load, and the other end of the load is grounded; the negative pole of the solar panel is connected to the current sampling resistor R s , the current sense resistor R s The other end of the ground ( figure 1 The middle ground is node G). Transistor Q 1 The collector and base are shorted at node A, and the transistor Q 2 The collector and ...

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Abstract

The invention discloses an artificial maximum power judgment circuit, and belongs to a hard circuit capable of controlling and tracking the maximum power point through solar photovoltaic. The artificial maximum power judgment circuit comprises load, an operational amplifier U1A, an operational amplifier U1B, a triode Q1, a triode Q2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a current sampling resistor Rs. According to the artificial maximum power judgment circuit, the complex maximum power point search is achieved through a triode feature curve, the response speed is increased greatly, the circuit structure is simplified, reliability is improved, and the cost is lowered; the output power of a solar panel can be worked out quickly and precisely, components forming the circuit are cheap in price and artificial discrete components; the hardware resources of the artificial maximum power judgment circuit are cheap, and basically, search of the maximum power point can be achieved through several artificial discrete components, multiple resistors, the two triodes and the two operational amplifiers.

Description

technical field [0001] The invention relates to a hardware implementation circuit for finding the maximum power point of solar energy, belonging to a hardware circuit for controlling and tracking the maximum power point of solar photovoltaics. Background technique [0002] Both wind energy and solar energy are constrained by the cost of equipment, so the goal in controlling the output power is to output as much power as possible on the same equipment, but the output power of the equipment under certain conditions and a certain external environment There is a maximum value, and the goal of the controller that controls the output power is to make the output power infinitely close to this maximum value. Also called Maximum Power Tracker (MPPT). [0003] The maximum power point of a solar panel is related to the temperature and sunshine conditions, as well as the conditions of the panel itself, and the external environment changes randomly and discretely on the basis of certain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/67
Inventor 伍钢姜昕卜范东
Owner 北京天宇航天新材料科技有限公司
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