1. Solution Background
The full name of the MPPT controller is "Maximum Power Point Tracking" solar controller, which can ensure that the photovoltaic components always output electricity at the maximum power. In theory, the efficiency of a solar power generation system using an MPPT controller will be 50% higher than that of a traditional one, but according to the analysis of actual test data, due to the influence of the surrounding environment and various energy losses, the final efficiency can also be increased by 20%-30%. From this perspective, the MPPT solar charge and discharge controller will eventually replace the traditional solar controller to a large extent. At the same time, the intelligence of MPPT is equally important. This solution aims to achieve wireless interconnection and data transmission of MPPT controllers in photovoltaic systems through BLE communication technology, monitor the status of each power generation node, and adjust the parameters of each node, thereby improving the power generation efficiency and operation and maintenance convenience of the photovoltaic system.
2. Solution Introduction
This solution connects the HY-2340 series BLE module to the MPPT controller of the power generation unit, and cooperates with mobile phone APP, server and other devices to transmit the status, parameters and external environment of the power generation unit to the mobile phone APP in real time, so that it can be adjusted at any time to ensure the efficiency of the entire solar system. The BLE communication module is responsible for wireless data transmission between the MPPT controller and the mobile phone. The mobile phone receives and analyzes the data from the MPPT controller, and can also transmit the data to the cloud through the mobile phone.
3. Solution Advantages
Low power consumption: BLE communication technology has the characteristics of low power consumption. The maximum transmission power of the HY-2340 series module is +8dbm, and the working voltage is 2.0-3.8, which is suitable for application scenarios such as photovoltaic systems that require long-term operation.
High reliability: The BLE network supports binding pairing and data encryption communication to ensure stable data transmission and reliable operation of the system.
Easy networking: The HY-2340 series module can be used as a host or a slave, which is convenient for rapid networking according to the needs of the photovoltaic system.
Long-distance communication: The communication distance of the HY-2340 series BLE module can reach 248m, which is more convenient for monitoring and adjusting photovoltaic power generation equipment.
Communication protocol: The HY-2340 series BLE module supports the latest BLE5.3 protocol, is compatible with BLE4.0 and above products, supports IOS/Android/Hongmeng and other operating systems, and supports most mobile phones/watches/tablets and other smart devices on the market.
Quick connection: The MPPT controller is monitored and managed through the BLE communication module. After verifying the identity, you only need to turn on the Bluetooth function of the smart device to connect, without manual verification every time.
Security: Use Network key and Link Key to encrypt data at the network layer and APS layer respectively to ensure communication security.
4. Solution implementation
This solution provides an efficient and reliable wireless monitoring and management solution for photovoltaic systems. It has been adopted by major photovoltaic power plants and applied in various photovoltaic power generation scenarios, such as vehicle-mounted photovoltaic power generation, house photovoltaic power generation, etc.
