Wind-light complementary intelligent charge-discharge controller, battery management system and wind-light complementary intelligent charging system

Abstract

The invention relates to the technical fields of new energy control and application, in particular to a wind-light complementary intelligent charge-discharge controller, a battery management system and a wind-light complementary intelligent charging system. The wind-light complementary intelligent charging system comprises a battery pack, the wind-light complementary intelligent charge-discharge controller and the battery management system which are correspondingly connected. The wind-light complementary intelligent charging system is communicated with the battery management system through the wind-light complementary charge-discharge controller. Compared with the prior art, a switch tube in the battery management system is removed, detected running parameters of the battery pack can be uploaded to report the wind-light complementary intelligent charge-discharge controller, charge-discharge parameters of the battery pack can be adjusted by the wind-light complementary charge-discharge controller, the connection between the battery pack and the wind-light complementary intelligent charge-discharge controller is not broken, and abnormal situations of system proruption outage caused by breaking a main road switch tube of the battery management system are greatly reduced. The wind-light complementary intelligent charging system is high in reaction speed, cannot cause rear end load outage and simultaneously improves reliability and efficiency of the whole system.

Description

technical field [0001] This application relates to the technical field of new energy control and application, in particular to a wind-solar hybrid intelligent charge-discharge controller, a battery management system and a wind-solar hybrid intelligent charging system. Background technique [0002] At present, the technology of solar energy and wind energy to charge batteries has been widely used, but the management of charging, discharging and energy management of battery packs in energy storage systems is a difficult point in the management of energy systems. [0003] In the existing technology, wind and solar complementary and discharge energy storage systems are composed of discrete wind and solar complementary, discharge controllers and battery packs; the application of lithium batteries only adds lithium battery management on the basis of lithium batteries The battery management system (BMS) is still an independent component. The charging and discharging management of ...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, wind and solar complementary and discharge energy storage systems are composed of discrete wind and solar complementary, discharge controllers and battery packs; the application of lithium batteries only adds lithium battery management on the basis of lithium batteries The battery management system (BMS) is still an independent component. The charging and discharging management of the battery and the energy management of the battery are all obtained by the simple estimation of the battery voltage by the inverter system. Furthermore, in the current battery management system on the market, the charging Discharge consistency management is mostly only applied to lithium batteries, and the current of the main control (electric switch tube) in the battery management system (BMS) is a difficult problem in the industry, and it is also the part with the highest failure rate. At the same time, after using this device, When the battery is fully charged, over-temperature, or over-voltage, the battery management system will shut it down. Due to the slow response speed of the electric switching tube, the delay when the system restores power will cause the backup power of the controller to be disconnected. It is easy to cause a huge loss of back-end load power failure, which makes the reliability and efficiency of the system low

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