Solar inverter, cell management system and solar power supply system
A battery management system, solar technology, applied in the field of new energy control and application, can solve the problems of loss, slow response, load power failure, etc., to reduce the abnormality of sudden power failure, fast response, reliability and efficiency improved effect
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Embodiment 1
[0037] A kind of solar inverter of this embodiment such as figure 1 As shown, the first interface for communication with the battery management system 2 is provided with the first interface for communication with the battery management system 2 and the battery interface connected with the battery pack 3 .
[0038] In this embodiment, the solar inverter 1 is provided with a first interface for communicating with the battery management system 2, which is realized without the use of a switch tube. Instead, the battery management system 2 detects the usage of the battery pack 3, and uses The situation is fed back to the solar inverter 1, and the solar inverter 1 performs reasonable maintenance and management on the battery pack 3. The response speed is fast, and the back-end load will not be powered off, so that the battery pack can be used reasonably.
[0039] Such as figure 2 As shown, the solar inverter 1 includes a solar branch, a mains branch, a bypass branch and a first ma...
Embodiment 2
[0055] A battery management system in this embodiment is as image 3 As shown, the battery management system 2 is respectively connected to the individual batteries of the battery pack 3 , and the battery management system 2 includes a second interface for communicating with the solar inverter 1 .
[0056] In this embodiment, the battery management system 2 is provided with a second interface for communicating with the solar inverter 1. The difference from the battery management system 2 in the prior art is that the use of the switching tube is canceled and the battery management system 2 Inform the solar inverter 1 of the detected usage of the battery pack 3 by uploading data, and the solar inverter 1 adjusts the charging and discharging parameters of the battery pack 3 without disconnecting the battery pack 3 from the solar inverter 1 , which greatly reduces the abnormality of sudden power failure of the system caused by disconnecting the 2 main switch tubes of the battery m...
Embodiment 3
[0067] A kind of solar energy power supply system of this embodiment such as Figure 5 As shown, it includes the battery pack 3 , the solar inverter 1 of the first embodiment and the battery management system 2 of the second embodiment, and the battery pack 3 , the solar inverter 1 and the battery management system 2 are connected correspondingly.
[0068] In this embodiment, the solar inverter 1 is communicated with the battery pack 3 management system (BMS) through a communication line, and the battery management system 2 notifies the solar inverter 1 of the detected usage of the battery pack 3 by uploading data. The charging and discharging parameters of the battery pack 3 are adjusted by the solar inverter 1, and the solar MPPT charging system is more perfectly combined with the battery management system 2 (BMS) and the battery pack 3 . The energy storage battery pack 3 of the solar inverter 1 can be managed more perfectly, so that the system can understand the operating s...
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