Uninterruptible power supply device based on microgrid and dispatching control method thereof

Abstract

The invention discloses an uninterruptible power supply device based on microgrid and a dispatching control method thereof. The device comprises an energy storage component, a distributed power component, at least one inverter module, an AC / DC loading module which contains an AC bus, a DC bus, a dispatching control bus, an AC load control bus, a DC load control bus and a loading unit connected with the DC bus and the AC bus, and a dispatching control module, wherein the energy storage component is connected with the DC bus and the dispatching control bus; the distributed power component is connected with the DC bus and the dispatching control bus and used to convert energy sources to electric energy, convert the electric energy to a DC with controllable voltage, current and and power and output the DC to the DC bus; the inverter module is connected with the DC bus, the AC bus and the dispatching control bus; and the dispatching control module is connected with the dispatching control bus. By adopting the device of the invention, the applicability of the distributed power can be increased and the reliability of supplying power for users can be increased.

Description

technical field [0001] The invention relates to the field of distributed energy generation, in particular to an uninterruptible power supply device based on a microgrid and a scheduling control method thereof. Background technique [0002] Distributed energy generation devices are decentralized low-power power sources that can be generated by fossil energy or renewable energy. Currently, renewable energy is mainly used for power generation, such as wind power, photovoltaics, hydropower and other resources. The distributed power supply, load, energy storage device and control unit are integrated into a controllable unit, so that it can be connected to the large power grid, and can also be disconnected from the main grid when the grid fails or is needed. The controllable unit is called a microgrid, also known as a microgrid or a microgrid. A perfect micro-grid needs to design a flexible control strategy, which can be operated independently or connected to the grid, and the po...

AI Technical Summary

Problems solved by technology

[0008] The existing technology proposes a power supply system composed of photovoltaic power supply, energy storage, inverter, switch and control circuit, which is characterized in that only photovoltaic power supply is used to supply power to the energy storage system or to supply power to the load through inverter or through inverter Incorporated into the distribution network for power generation, no distributed power dispatching issues are involved

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