Microgrid multi-power bus controller

Abstract

The invention discloses a micro-grid multi-power-supply confluence controller comprising a multi-path power supply input interface, a multi-path confluence control unit, a single-path direct-current output interface and a coordination control unit, wherein the coordination control unit comprises a display module, a storage module, a communication module, a man-machine interaction module, a signal conditioning module and a CPU (Central Processing Unit) module; the display module, the storage module, the communication module, the man-machine interaction module and the signal conditioning module are respectively connected with the PCU module in a bidirectional signal transmission manner; the input end of the signal conditioning module is connected between a protection circuit module and a multi-path confluence controller module; and the signal conditioning module is further connected with the multi-path confluence controller module in the bidirectional signal transmission manner. According to the micro-grid multi-power-supply confluence controller disclosed by the invention, input multi-path alternating-current and direct-current power supplies are subjected to the confluence control; and under the precondition of normally outputting a direct-current power supply after the confluence, an optimal operation control strategy is implemented according to properties and loading requirements of each input power supply, so that the energy efficiency ratio is the best.

Description

technical field [0001] The invention relates to a micro-grid multi-power confluence controller, which belongs to the field of power electronics and can be applied to the micro-grid for optimal management of various energy sources. Background technique [0002] At present, with the gradual exhaustion of conventional energy and the increasing environmental pollution, countries all over the world are strengthening the development and utilization of clean and efficient renewable energy to solve energy problems in the future social and economic development. The microgrid provides an important form of network organization for the grid-connected access of distributed power generation (including renewable energy). in parallel. The coordinated management of multiple energy sources in the microgrid is a difficult point. In the case of concentrated distributed energy sources, the existing controllers still use discrete methods to coordinate the working methods of each distributed powe...

AI Technical Summary

Problems solved by technology

The coordinated management of multiple energy sources in the microgrid is a difficult point. In the case of concentrated distributed energy sources, the existing controllers still use discrete methods to coordinate the working methods of each distributed power source. Redundancy, long response time, difficult maintenance and other issues, the cost of existing controllers in microgrids with low power and centralized distributed energy sources is often unacceptable to users, so design a controller that can support multi-power convergence coordination controller is necessary

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