Double-bus energy grid-connected topological structure and grid-connected control method thereof

Abstract

The invention discloses a double-bus energy grid-connected topological structure and a grid-connected control method thereof. The grid-connected topological structure comprises a platform bus energy component, a load bus energy component and a grid-connected control unit. The grid-connected control unit is respectively connected with the platform bus energy component and the load bus energy component through a platform bus and a load bus. The platform bus energy component is used for adopting a direct energy transmission system for power regulation and supplying power to platform equipment. The load bus energy component is used for adopting a solar array maximum power tracking mechanism to realize the maximization of the power supply energy of the load bus energy component. The load bus energy component is also used for supplying power to load equipment high in power output. The grid-connected control unit is used for adopting a power MOS tube-based impedance pulse width adjusting system to realize the energy adjustment and the mutual allocation between the platform bus energy component and the load bus energy component. According to the invention, the problem that the short-time and high-power type power supply stability for loads in a micro-nano satellite single-bus power supply system is poor in the prior art can be solved.

Description

technical field [0001] The invention belongs to the technical field of micro-nano satellite energy systems, and in particular relates to a dual-bus energy grid-connected topology and a grid-connected control method. Background technique [0002] At present, the development of micro-nano satellites has gradually begun to move from experiments to various applications. Under the condition of limited mass and volume of the whole satellite, the load power output level is required to be higher and higher, which puts forward higher requirements for the design of satellite energy supply and distribution systems. , the energy supply and distribution system needs to be able to better adapt to the short-term high-power output requirements of the load and meet the stability of the system power supply while meeting the long-term power consumption requirements of the platform equipment. Short-term high-power output will cause instability to the power supply of the platform, and it will no...

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Problems solved by technology

[0003] The technical problem of the present invention is to overcome the deficiencies of the prior art and provide a dual-bus energy grid-connected topology and a grid-connected control method to solve the short-term high-power power supply stability of the micro-nano-satellite single-bus power supply system To adapt to the dynamic change of satellite load in various working modes

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