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Solar panel output power regulation system

A technology for solar panels and output power, applied in electrical components, circuit devices, photovoltaic power generation, etc., can solve the problems that grid-connected inverters cannot be stably connected to the grid, and cannot realize solar panel tracking, etc., to improve safety. stability and stability, the effect of resolving impacts

Active Publication Date: 2020-04-28
青海伟航北创新能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Otherwise, the MPPT method will not only fail to track the maximum power point of the solar panel, but will also make the grid-connected inverter unable to run stably, and even cause off-grid failures.

Method used

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  • Solar panel output power regulation system

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Embodiment Construction

[0028] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0029] Such as figure 1 As shown, a solar panel output power adjustment system proposed by the present invention mainly includes a constant voltage control module, an MPPT control module, a switching control unit, a bus voltage dynamic adjustment unit, an active current soft start unit and an SVPWM unit, wherein:

[0030] The input end of the constant voltage control module is provided with a connection interface of a solar cell panel, and the target voltage of the constant voltage control is determined according to the open circuit voltage of the solar cell panel;

[0031] The input end of described MPPT control ...

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PUM

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Abstract

The invention discloses a solar cell panel output power regulation system, which is characterized in that the system comprises a constant voltage control module, an MPPT control module, a switching control unit, a bus voltage dynamic regulation unit, an active current soft start unit and an SVPWM unit, wherein, the constant voltage control module determines a target voltage under constant voltagecontrol; MPPT control module tracks the actual maximum power voltage point; The switching control unit realizes mode switching; The bus voltage dynamic adjustment unit and the active current soft start unit are respectively used for determining the voltage and current commands of the DC bus of the inverter; The SVPWM unit is used for switching control of power devices. The remarkable effect of theinvention is that the two control methods are combined to realize the system to track to the actual maximum power point quickly and work stably, the influence of the voltage fluctuation of the powernetwork on the system stability is solved, the defect caused by incorporating the photovoltaic power supply into the power network by using the MPPT method is solved, and the safety and stability of the system are improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a two-stage connectionless protocol resource allocation method with conflict detection. Background technique [0002] Photovoltaic power generation is the main form of utilization of solar energy. Independent photovoltaic power generation systems can effectively solve the problem of power supply in remote areas without electricity and in some special occasions. The output of solar panels is highly nonlinear, and the output power varies greatly under different light conditions, temperatures, external loads, and operating voltages. Certain measures need to be taken to track the maximum power point of photovoltaic cells. [0003] Under certain environmental conditions such as light intensity and temperature, the solar panel P-V characteristic curve of photovoltaic cells is a unimodal curve, which shows that photovoltaic cells have and only have one maximum power point...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCH02J3/385Y02E10/56
Inventor 袁锦华
Owner 青海伟航北创新能源科技有限公司
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