Control method based on multi-input direct current converter switch state of state machine

Abstract

The invention is applicable to the technical field of switch control, and provides a control method based on a multi-input direct current converter switch state of a state machine, comprising the following steps: A, judging whether output voltage of an intermittent power supply is greater than a preset value or not; B, judging whether a continuous power supply has voltage output or not; and C, closing a direct current exchanger switch of an energy storage apparatus and executing the second judging step; and when a detector detects that the energy storage apparatus is fully charged, switching off the charging switch of the energy storage apparatus. Devices and related control circuits are reduced, and the power consumption is reduced; high power density, effective management, compact layout, and improved stability of the system are achieved; centralized control can be realized easily; and the cost and the volume of the system are reduced.

Description

technical field [0001] The invention belongs to the field of switch control, in particular to a control method based on state machine multi-input DC converter switch state. Background technique [0002] With the increasing use of renewable energy by human beings, the development of microgrids has attracted more and more attention. In the past five years, through continuous in-depth research, the development of microgrids has achieved remarkable results. The United States defines microgrid as a new power supply system composed of loads and distributed power sources. It mainly uses new renewable input sources, such as wind energy and solar energy, etc. Its wide application can reduce the shortage of non-renewable energy sources and greatly improve the environmental pollution problem. In Europe, power electronics technology and intelligent control technology are used to combine traditional power supply system and micro-grid power supply system to fully improve energy utilizat...

AI Technical Summary

Problems solved by technology

In practical applications, the real-time selection of micro-sources is not done manually, and it is impossible for humans to manage and control micro-sources in real time.

And the complex nonlinear phenomena in the multi-input DC converter system will also affect the system efficiency

Therefore, in the absence of an intelligent control strategy, it will be difficult to find a suitable input state type, which makes it impossible to guarantee the uninterrupted power supply of the load, and cannot effectively avoid the nonlinear influence of the corresponding system

Therefore, the energy efficiency will be greatly reduced

Images