A wind-solar hybrid controller, control system and method

A wind-solar hybrid and controller technology, applied in current collectors, transportation and packaging, electric vehicles, etc., can solve complex application environments, wind turbines and solar panel working conditions are greatly affected by the external environment, and charging current cannot be set for batteries, etc. problems, to achieve the effect of ensuring safe operation, realizing real-time transmission and cloud storage

Active Publication Date: 2022-07-29
JINAN DEMING POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex application environment of wind and solar hybrid power generation systems, the working status of wind turbines and solar panels is greatly affected by the external environment. Controlling wind turbines and solar panels only through voltage cannot guarantee the stable operation of the entire system under any circumstances.
In this way, only PWM is used to control the rectified DC part of the wind turbine, and it cannot ensure the control of the wind turbine in the case of strong wind or when the system load fails.
[0005] (2) The existing wind-solar hybrid controller cannot set the charging current according to different specifications of batteries
[0006] (3) In the existing wind-solar hybrid controller, the user cannot set and adjust the working parameters after leaving the factory
[0007] (4) Wind-solar hybrid control system, as a device connected to wind turbines, solar panels, and batteries, can only collect the parameters of all system equipment through the wind-solar hybrid controller; however, the existing wind-solar hybrid controllers are not connected to the Internet of Things and cannot Realize real-time data transmission and cloud storage

Method used

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  • A wind-solar hybrid controller, control system and method
  • A wind-solar hybrid controller, control system and method

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Experimental program
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Embodiment 1

[0081] figure 1 It is a schematic structural diagram of Embodiment 1 of a wind-solar hybrid controller of the present invention.

[0082] In this embodiment, the wind-solar hybrid controller is connected to the PWM controller.

[0083] like figure 1 As shown, a wind-solar hybrid controller in this embodiment includes:

[0084] (1) A battery state-of-charge determination section configured to receive the battery voltage signal and determine the state of charge of the battery.

[0085] The state of charge of the battery includes floating charge and full charge.

[0086] In order to balance the capacity loss due to the self-discharge of the battery, a continuous, long-term constant-voltage charge of the battery is required. This charging mode is floating charging, also known as floating charging.

[0087] The float voltage has been specified in the battery technical parameters.

[0088] When the battery voltage reaches the preset overcharge charging voltage value, it indica...

Embodiment 2

[0108] figure 2 It is a schematic structural diagram of Embodiment 2 of a wind-solar hybrid controller of the present invention.

[0109] In this embodiment, on the basis of the first embodiment, the wind-solar hybrid controller is also connected with the switch element controller.

[0110] like figure 2 As shown, a wind-solar hybrid controller in this embodiment further includes:

[0111] The switching element control part is configured to receive the output results of the battery charging state determination part, the wind turbine voltage / current comparison part, the wind turbine rotational speed comparison part and the wind speed comparison part, and when any switching element activation condition is satisfied, to the The switch element controller sends a start signal; the switch element start conditions include:

[0112] a2. The battery is fully charged;

[0113] b2. The wind turbine voltage / current reaches the preset maximum voltage / preset maximum current;

[0114]...

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Abstract

The invention discloses a wind-solar hybrid controller, a control system and a method. Wherein, the wind-solar hybrid controller includes a battery state-of-charge determination part, which is configured to receive the battery voltage signal and determine the state of charge of the battery; and a wind turbine voltage / current comparison part, configured to receive the wind turbine voltage / current signal , and compare with the preset voltage / current; and the wind turbine speed comparison part, which is configured to receive the wind turbine speed signal, and compare with the preset speed; and the wind speed comparison part, which is configured to receive the current wind speed signal and Compared with the preset wind speed; and a PWM start-up part, which is configured to receive the output results of the battery charging state judgment part, the wind turbine voltage / current comparison part, the wind turbine rotational speed comparison part and the wind speed comparison part, when any one of the output results is satisfied; When a PWM start condition occurs, a start signal is sent to the PWM controller.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a wind-solar hybrid controller, a control system and a method. Background technique [0002] The wind-solar hybrid controller is specially designed for high-end small and medium-sized wind-solar hybrid systems. It is an intelligent controller that integrates wind energy and solar energy control. It is especially suitable for wind-solar hybrid power supply systems and wind-solar hybrid monitoring systems. It can control wind turbines and solar panels at the same time. Safe and efficient smart charging of batteries. The wind-solar hybrid controller is the core component of the off-grid street light system, and its performance affects the life and operation stability of the entire system, especially the life of the battery. [0003] The existing wind-solar hybrid controllers have the following defects: [0004] (1) The existing wind-solar hybrid controller only has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/35
CPCH02J7/35
Inventor 荆林峰
Owner JINAN DEMING POWER EQUIP
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