Multi-stage optimization control system and method for energy conversion integrated platform-based deceleration strip magnetic force screw power generation system

By using a three-level modular control system and dynamic sliding mode control method, the stability problem of the speed bump power generation system under external disturbances was solved, achieving efficient energy recovery and improved system stability, and solving the problems of friction loss and insufficient energy recovery in traditional systems.

CN119298748BActive Publication Date: 2026-07-03NANJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING INST OF TECH
Filing Date
2024-10-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing speed bump power generation systems are difficult to maintain efficient and stable operation when faced with external disturbances, and traditional systems suffer from high frictional losses and insufficient energy recovery.

Method used

A speed-up magnetic screw power generation system based on an energy conversion integration platform is adopted. Through a three-level modular control system: acquisition module, Level I module and Level III module, the dynamic sliding mode control method of sigmoid function and fractional sliding mode controller are used to accurately acquire the angular velocity and angular position of the magnetic composite motor. It has strong anti-disturbance capability and achieves accurate tracking and stable operation.

Benefits of technology

It improves the stability and response speed of magnetic screw composite motors in speed belt power generation systems, reduces energy loss, enhances the reliability and stability of power generation systems, extends equipment service life, enables fine adjustment of dynamic characteristics, and reduces the steady-state error and dynamic response time of traditional integer-order controllers.

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Abstract

The application discloses a kind of based on energy conversion integrated platform's deceleration zone magnetic force screw power generation system cascade optimization control system and method, belong to deceleration zone power generation technical field, control system includes: acquisition module, for obtaining the three-phase current and three-phase voltage of magnetic force screw composite motor;I level module, for according to three-phase current and voltage, respectively obtains the angular velocity and angular position estimation value of magnetic force composite motor using dynamic sliding mode control method based on sigmoid function;II level module, for according to three-phase current, load torque and angular velocity estimation value, obtains AC and DC shaft reference current instruction using anti-disturbance extended state observer and fractional order sliding mode controller;III level module, for according to AC and DC shaft reference current instruction, three-phase current and the open-loop transfer function constructed, decoupling generates AC and DC shaft reference voltage instruction.The application can accurately track observation to system, and strong anti-disturbance ability.
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