Network communication and control system for non-equilibrium management photovoltaic lithium-ion energy storage module nodes

Abstract

The invention provides a network communication and control system for non-equilibrium management photovoltaic lithium-ion energy storage module nodes. The system comprises a module communication and control layer, a relay communication layer and a central communication and control layer from bottom to top, wherein the module communication and control layer further comprises one or a plurality of parallel photovoltaic lithium-ion energy storage module nodes, wherein the nodes are based on CAN communication, and external transmission interfaces are in mutual series connection with one another. The module communication and control layer is used for achieving energy management and external transmission of the photovoltaic lithium-ion energy storage module and external communication of the module. The relay communication layer further comprises one or a plurality of relay communication nodes which are connected in a tree shape and based on CAN communication, and the relay communication layer is used for node expansion and interlayer information processing and forwarding of the network communication and control system. The central communication and control layer further comprises a CAN / Ethernet protocol conversion unit and a central monitoring unit comprising an Ethernet interface, and the central communication and control layer is used for achieving the transmission function of data uplink and control order downlink between the nodes of the relay communication layer and the module communication and control layer.

Description

technical field [0001] The invention relates to an unbalanced management photovoltaic lithium battery energy storage module node networking communication and control system. Background technique [0002] As a new type of energy, solar energy has attracted increasing attention, and photovoltaic power generation, one of its main applications, has a broad market prospect. However, the main disadvantage of solar energy is that the energy is unstable. It is not available during the day and at night, and the sunny day is strong and the cloudy day is weak. Usually, it is necessary to equip an energy storage battery to stabilize the influence of solar energy instability. Therefore, a photovoltaic energy storage power generation system emerges as the times require, which includes a photovoltaic cell for converting solar energy into electric energy and an energy storage battery for storing the electric energy generated by the photovoltaic cell. [0003] As far as energy storage batte...

AI Technical Summary

Problems solved by technology

The above non-balanced management photovoltaic lithium battery energy storage system only explains the implementation of the cascading and expansion of the power level of the non-balanced management photovoltaic lithium battery energy storage module, and does not discuss this large-scale node networking communication and control system The construction and implementation of effective design

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