Modular standby power supply device for acquisition terminal

Abstract

The invention discloses a modular standby power supply device for an acquisition terminal. The device comprises an energy charging unit, an energy unit, a voltage output unit, a communication and parameter setting unit and a voltage monitoring unit. Energy is output through the energy unit and is converted into voltage classes adapting to different working conditions through the voltage output unit; the voltage monitoring unit monitors the power grid voltage in real time to determine whether to perform output, and finally the parameter communication setting unit performs parameter setting and selects a corresponding power supply mode and time, thereby solving the power supply problem of a terminal and an electric meter in a transformer area due to power failure caused by faults, realizing intelligent detection, and automatically switching according to the power grid power-on condition to reduce the construction amount of field personnel; multiple voltage levels are provided, terminals of different levels and specifications are compatible, and the problem that multiple devices are needed for different voltage levels is solved; and a power grid charging mechanism is adopted, and long-time power supply operation of the device during line power failure can be ensured.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a modularized backup power supply device for collection terminals. Background technique [0002] At present, as the construction of electricity consumption information collection becomes more and more perfect, State Grid Corporation has increasingly strict requirements on the online rate, collection success rate and full amount of data of electricity consumption information collection terminals. As an important part of the smart grid, electricity consumption information data collection, the success rate of collection also represents the reliability of the power consumption information collection system and the management level of the power supply company, so the power supply company pays more attention to the collection success rate , and gradually take it as an important assessment indicator. [0003] However, some of the on-site seasonal electricity customers, high-voltage...

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Problems solved by technology

[0004] For seasonal electricity customers, in order to ensure the power supply of the collection terminal, the transformer is used for long-term no-load operation, which will increase the line loss and seriously affect the service life of the transformer, but the gain outweighs the loss

At the same time, some areas use dual mains power supply schemes. This scheme wastes time in construction, consumes a lot of manpower and material resources, and causes a great waste of resources.

[0005] At present, most of the common backup power supply devices for collection terminals are powered by pure battery energy storage. The conversion efficiency is low, the power supply time is short, and there is no long-term battery life; the protection level is generally not high, and it is not suitable for outdoor scenes; and it cannot be based on The situation on the grid side determines whether it can output, and it cannot solve the power supply problem more intelligently; the power supply level is single, and cannot adapt to various voltage levels on site; and some intelligent switching equipment is too large and inconvenient to install; Time life

Lack of technical means and heavy workload are the work problems that have always been faced by power marketers

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