Digital control system for satellite power supply controller

Abstract

The invention discloses a digital control system for a satellite power supply controller. A centralized and decentralized integrated master-slave architecture is adopted, each function module is provided with a corresponding digital slave control unit, the corresponding function modules are controlled and managed for realizing power conversion required by a power supply system, each digital slavecontrol unit is connected with the digital master control module through an internal data bus and is controlled and scheduled by the digital master control module, integral power supply system control, management and scheduling are carried out by the digital master control module, charging and discharging current references and module operation modes are provided, and the digital master control module is responsible for stabilization of the bus voltage, storage battery charging and discharging management and cut-off input control of the digital slave control units. The system is advantaged inthat through N+1 module configuration, reliability is improved, when one module in the system is damaged, the damaged module is controlled by the digital master control module to separate from the system to realize fault isolation, a redundancy module is further controlled for operation, the integral system is guaranteed to realize normal operation even when the system is in fault, and the systemhas important engineering application values.

Description

technical field [0001] The invention relates to the field of digital control, in particular to the field of digital control of satellite power system power control and DC / DC power conversion, and in particular to a digital control system framework and control strategy for a satellite power controller. Background technique [0002] The power supply subsystem is one of the important components of the satellite platform, and its development level plays a key role in improving satellite performance and prolonging the working life of the satellite. With the optimization of spacecraft functions and performance, the expansion of load capacity, and the diversification of orbits, higher requirements are put forward for technologies such as configuration management, fault detection and diagnosis of spacecraft power systems. On the one hand, the distributed power supply and distribution architecture of the spacecraft system has made an essential leap in the number of power controllers ...

AI Technical Summary

Problems solved by technology

On the one hand, the distributed power supply and distribution architecture of the spacecraft system has made an essential leap in the number of power controllers used, which not only requires reducing the weight and volume of each module, but also requires reasonable management and coordination of all functional modules. monitoring; on the other hand, some applications of high-precision loads and special loads require high-performance power controllers as front-end support. protection and management logic

The current analog power controllers are difficult to meet the changes in the application requirements of the load, resulting in a complex and large power system or a long production cycle for customized power supplies

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