Distributed aero-engine control design method based on state estimation

An aero-engine, distributed control technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as slow response, increased control system overshoot, and data packet timing disorder.

Active Publication Date: 2019-10-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0003] In NCS, each component needs to exchange system information through a shared network, and data exchange through the network will inevitably lead to problems such as data transmission time delay, packet loss, and data packet timing disorder. During the transmission of the sensor to the controller and the transmission of the control signal from th

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  • Distributed aero-engine control design method based on state estimation
  • Distributed aero-engine control design method based on state estimation
  • Distributed aero-engine control design method based on state estimation

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Embodiment Construction

[0068] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0069] according to figure 1 , 2 , 3, 4, 5, 6, 7, 8, and 9, the present embodiment proposes a method for designing a distributed control of an aeroengine based on state estimation, including the following steps:

[0070] A method for designing distributed control of an aeroengine based on state estimation, comprising the following steps:

[0071] Step 1: Establish an aero-engine distributed control system model based on the TrueTime toolbox. The specific con...

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Abstract

The invention discloses a distributed aero-engine control design method based on state estimation, and the method comprises the following steps of establishing a distributed aero-engine control systemmodel based on a TrueTime toolbox, establishing a network channel loss model by using a dichotomy, designing a packet loss state estimator based on two types of different Kalman filters and a state estimated value sent based on the state estimator, designing a PI incremental controller, and fusing the packet loss state estimator based on the Kalman filters and the PI controller in the distributedaero-engine control system model based on the TrueTime toolbox. By designing distributed engine control based on the estimated value in the packet loss state, controller errors in the input state aresuppressed, and the accuracy of input information of the controller and the flexibility of controller design are improved. Using TrueTime toolbox for digital simulation is versatile, which is usefulfor analyzing the effects of various parameters on the performance of network control systems.

Description

technical field [0001] The invention relates to the technical field of aero-engine control, in particular to a method for designing distributed control of an aero-engine based on state estimation. Background technique [0002] In the aero-engine distributed control system, signals are transmitted between controllers, sensors and actuators through the network, which is essentially a type of network control system (Network Control System referred to as NCS); TrueTime toolbox is a network control system developed for Based on the Matlab / Simulink simulation platform, the TrueTime toolbox can be used to build a joint simulation environment for the dynamic process, control task execution and network interaction of the distributed real-time control system. In this simulation environment, most scheduling strategies and physical layer network protocols can be studied The impact on the performance of the control system, its control task can be written in C++ code, can also be written ...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 潘慕绚许允仇小杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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