Optical storage off-network system control method and device, controller and storage medium

A controller, off-grid technology, applied in circuit devices, photovoltaic power stations, energy reserves, etc., can solve problems such as power generation being greatly affected by light, emptying of energy storage batteries, and inability to resume operation.

Pending Publication Date: 2021-06-11
XIAN LINCHR NEW ENERGY TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The main energy source of the traditional solar-storage off-grid system is photovoltaic power generation, and its power generation is greatly affected by sunlight.
However, when the photovoltaic power generation is insufficient and the capacity of the energy storage battery is low, or when the photovoltaic power generation capacity is less than the loss of the photovoltaic storage off-grid system, the energy storage battery will be in a state of continuous low-power discharge, and the energy storage battery will be empty. risk, which in turn will cause the entire off-grid optical storage system to go down and fail to resume operation

Method used

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  • Optical storage off-network system control method and device, controller and storage medium
  • Optical storage off-network system control method and device, controller and storage medium
  • Optical storage off-network system control method and device, controller and storage medium

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Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the appended The figures are only for the purpose of illustration and description, and are not used to limit the protection scope of the present application. Additionally, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented in accordance with some embodiments of the application. It should be understood that the operations of the flowcharts may be performed out of order, and steps that have no logical context may be performed in reverse order or concurrently. In addition, those skilled in the art may add one or more other operations t...

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Abstract

The invention provides an optical storage off-grid system control method and device, a controller and a storage medium, and belongs to the technical field of off-grid micro-grid control. The method comprises the steps that: a controller determines whether an optical storage off-grid system enters a low-capacity operation stage or not according to the charge state of an energy storage battery; if the optical storage off-grid system enters the low-capacity operation stage, the controller determines whether a DC-to-DC converter and a photovoltaic cell panel in the optical storage off-grid system need to be shut down or not according to the power of an electric meter at an energy storage contactor; and if the DC-to-DC converter and the photovoltaic cell panel in the optical storage off-grid system need to be shut down, the controller controls the DC-to-DC converter and the photovoltaic cell panel to be shut down. According to the optical storage off-network system control method and device, the controller and the storage medium provided by the technical schemes of the invention, the optical storage off-grid system can still realize automatic operation under the condition that the energy storage battery is in low-capacity standby power, the risk of emptying the energy storage battery is reduced, the risk of downtime of the optical storage off-grid system is avoided, and the operation reliability of the optical storage off-grid system is improved.

Description

technical field [0001] The present application relates to the technical field of off-grid micro-grid control, in particular, to a control method, device, controller and storage medium for an optical-storage off-grid system. Background technique [0002] As an easy-to-deploy clean energy power supply system, the optical-storage off-grid system solves the power supply problem in areas without electricity or weak electricity. It has been widely used in remote mountainous areas, areas without electricity, islands, communication base stations, and street lights. place. [0003] The main energy source of the traditional solar-storage off-grid system is photovoltaic power generation, and its power generation is greatly affected by sunlight. However, when the photovoltaic power generation is insufficient and the capacity of the energy storage battery is low, or when the photovoltaic power generation capacity is less than the loss of the photovoltaic storage off-grid system, the ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02S10/20
CPCH02J3/388H02J3/381H02S10/20H02J2300/24Y02E70/30Y02E10/56
Inventor 孙运杰李建奇许立贺国栋李维波
Owner XIAN LINCHR NEW ENERGY TECH CO LTD
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