Multi-energy multi-mode uninterruptible power supply (UPS) based on controller area network (CAN) bus

Abstract

The invention provides a multi-energy multi-mode UPS based on a CAN bus. The UPS is capable of sharing information among modules and supporting hot plugging and facilitates system expansion. The UPS is characterized by being composed of an intelligent monitoring module, a display module, a charging module, a storage battery module, an inversion module, a solar energy conversion module, a wind energy conversion module, a signal detection module and a rapid switching device. All modules are under integrated control, a communication network is established through the CAN bus, the intelligent monitoring module serves as a master controller and the highest priority, and all module share information and coordinate and manage uniformly. By means of the system structure based on the CAN bus, system modules can be increased or decreased through the hot plugging mode, users can select modules to expand systems according to regional conditions and respective requirements, and simultaneously, standby modules can be added on a kernel module, so that UPS supply can be truly achieved even a certain module fails.

Description

technical field [0001] The present invention relates to the technical field of power electronic inverters, in particular to uninterruptible power supplies. Background technique [0002] With the continuous development of society, electric energy is still the most important energy source at present. However, various industries that rely more and more on electric energy have to face a problem-power outage. Whether it is a foreseeable power outage or a sudden power outage, it is still unavoidable at present, which will inevitably affect people's life order and learning, especially for some important public buildings, industries and fire emergency. Power supply will cause significant social impact, economic loss and even casualties. Thus, uninterruptible power supply came into being. [0003] Uninterruptible power supply needs to stabilize and monitor the input voltage while ensuring uninterrupted power supply to the load. It is suitable for occasions that require high voltage...

AI Technical Summary

Problems solved by technology

[0003] Uninterruptible power supply needs to stabilize and monitor the input voltage while ensuring uninterrupted power supply to the load. It is suitable for occasions that require high voltage quality and short power supply intervals. It is often used in computers and communication networks, etc. For the power supply of precision instruments and equipment, in order to meet the requirements for power supply of equipment with increasing automation procedures, especially for the continuity, stability and purification of power supply itself, intelligent control methods are gradually applied to the field of uninterruptible power supply, some Enterprises have also begun to launch power supply equipment related to new energy, and have also proposed a modular design method, but these equipment ignore the communication and detection information sharing between modules, and cannot achieve centralized monitoring under the premise of resource optimization.

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