In view of the problems of large overshoot and large oscillation frequency in current furnace temperature control, based on the development of intelligent control theory, expert control, fuzzy control, and neural netw...
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In view of the problems of large overshoot and large oscillation frequency in current furnace temperature control, based on the development of intelligent control theory, expert control, fuzzy control, and neural network control in intelligent control theory are combined with proportional integral derivative (pid) control. The intelligent pid control algorithm is used to carry out numerical simulation and experimental research on these several controlalgorithms. The results show that the adjustment effect of the intelligent pid control algorithm is significantly better than the traditional pid control algorithm. Among them, the fuzzy self-tuning pid control algorithm and the fuzzy immune pid control algorithm are feasible in the application of furnace temperature control. The neural network pid control algorithm It also has good development and application potential.
Magnetic bearing with redundant structure can regain supporting ability by way of reconstruction under the condition of coil failure. In this paper, the influence of parameters on stiffness is studied by way of simula...
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Magnetic bearing with redundant structure can regain supporting ability by way of reconstruction under the condition of coil failure. In this paper, the influence of parameters on stiffness is studied by way of simulation and experiment using pid control algorithm, and the reconstruction strategy is proposed. The range of feasible parameters of redundant reconstruction is determined and the weight of the parameters is found out. The control parameter that makes stiffness of magnetic bearing constant is found out. The experimental results are in agreement with the simulation results in tendency, but the experimental results are less than the simulation results.
An intelligent music playback control system, which can select the appropriate music to play according to the facial expression recognition result, is designed. The hardware system consists of PYNQ_Z2 development boar...
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ISBN:
(纸本)9781728176796
An intelligent music playback control system, which can select the appropriate music to play according to the facial expression recognition result, is designed. The hardware system consists of PYNQ_Z2 development board , camera, HDMI display and audio. The software system performs face detection on the core chip of ARM + FPGA through Haar feature and Adaboost algorithm, and realizes expression recognition through LDA and K nearest neighbor algorithm. The expression recognition results are sub-classified by confidence, and the pid control algorithm is used to adjust the confidence to improve the robustness of the system during uneven illumination. The system has low delay, strong robustness and rich human-computer interaction, and has a wide range of application scenarios.
Due to the increasing shortage of traditional fuels and the worsening of environmental pollution, the development of new energy sources is imminent. In this paper, based on the inshore wave attack energy, an innovativ...
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ISBN:
(纸本)9798350349047;9798350349030
Due to the increasing shortage of traditional fuels and the worsening of environmental pollution, the development of new energy sources is imminent. In this paper, based on the inshore wave attack energy, an innovative power generation device is designed and its grid-connected research is carried out, and the theory and present situation of linear generator are known. The physical model of wave power generation device is designed and built, and the experimental platform and analysis results are built. At the same time, the mathematical model of wave pool is built by MATLAB simulation, and the maximum utilization of waves is realized by combining relevant control strategies. Secondly, the mathematical model of linear generator system is built by PSCAD. pid control algorithm is used to precisely regulate the wave near-shore attack power generation system, and the influence of VOC and VF control strategies on the power grid is analyzed under the two conditions of independent operation of microgrid and grid-connected operation of microgrid, and the correctness of the mathematical model under the control strategy is verified.
The paper designs a high power DC motor closed-loop control system, mainly including design of H bridge drive circuit, speed detection circuit and signal conditioning circuit. In order to improve the performance of mo...
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ISBN:
(纸本)9783037855959
The paper designs a high power DC motor closed-loop control system, mainly including design of H bridge drive circuit, speed detection circuit and signal conditioning circuit. In order to improve the performance of motor running, one proposes a fuzzy adaptive pid control algorithm. Firstly, one determines the degree of membership of the input values to defined fuzzy sets, then constructs the fuzzy rule table according to experience and experiments, finally, makes defuzzification for every parameter of pidcontroller, that is, Kp, Ki, Kd. Experiments show that both hardware implementation and software controlalgorithms are reliable, the running performance of the system is robust before or after adding load.
This paper presents a new intelligent control method which can lower the energy consumption and the pollution risk of electric bicycles. Lowering the energy consumption depends on improving the efficiency of energy tr...
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ISBN:
(纸本)9783037852958
This paper presents a new intelligent control method which can lower the energy consumption and the pollution risk of electric bicycles. Lowering the energy consumption depends on improving the efficiency of energy transformation, and lowering the pollution risk depends on prolonging the service life of battery. Firstly, we organizes the acceleration model, then quantitative analysis are given to show the relationship between transient current and acceleration time, and the method of lowering the transient current during acceleration is given. Secondly, we determine the speed of motor when it is working at peak efficiency, at which speed the pid control algorithm is used to make the electric bicycles working. This method has been carried out on ARM processor.
With the rapid development of computer and microelectronics technology, intelligent vehicle technology has become the latest development frontier of the automobile industry. In order to deeply explore and study the co...
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ISBN:
(纸本)9781665493895
With the rapid development of computer and microelectronics technology, intelligent vehicle technology has become the latest development frontier of the automobile industry. In order to deeply explore and study the control problems of intelligent vehicles, we have carried out research in the following aspects: the construction of electric four-wheel steering and four-wheel drive mobile platform, the configuration of multi-layer sensing sensors on the mobile platform, and the Development and experimental validation of vehicle motion controlalgorithms. Based on the preliminary design of the mobile platform construction and sensor configuration scheme, and the completion of the power part construction, we study the motion model of the mobile platform, and add a pidcontroller to realize the stable control of the longitudinal and steering of the mobile platform. We have finished the structure construction of the mobile platform and the configuration of the sensors and have completed the preliminary debugging of the platform. And eventually we realize the basic performance of the platform, and verify the developed algorithm on the mobile platform.
Conventional pid control algorithm is difficult to obtain good effect in control of the temperature of FC furnace gypsum calcinations which is characterized by time-varying process, nonlinearity, and big disturbance. ...
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ISBN:
(纸本)9781467318723;9781467318716
Conventional pid control algorithm is difficult to obtain good effect in control of the temperature of FC furnace gypsum calcinations which is characterized by time-varying process, nonlinearity, and big disturbance. In view of the steady-state accuracy of pidcontrol, strong robustness and fast response of fuzzy control, this paper designs fuzzy pidcontroller to control the pre-drying temperature by overcoming disturbances in the system through online adjustment of the pid parameters. Simulation results show that this control strategy has high-speed quality and stability compared to conventional pid.
Semiconductor refrigeration plate, temperature sensor, microcontroller STC12C5410AD and other circuits are used to design a new kind of temperature control system of the giant magnetostrictive actuator. Semiconductor ...
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ISBN:
(纸本)9783037853733
Semiconductor refrigeration plate, temperature sensor, microcontroller STC12C5410AD and other circuits are used to design a new kind of temperature control system of the giant magnetostrictive actuator. Semiconductor refrigeration plate is controlled by the pid control algorithm for temperature controlling automatically.
In order to overcome the deficiencies of outdated hydraulic system of drilling rig, The testing drilling system is designed, which provides drilling parameters of inspecting, recording and controlling to meet the need...
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ISBN:
(纸本)9783037852132
In order to overcome the deficiencies of outdated hydraulic system of drilling rig, The testing drilling system is designed, which provides drilling parameters of inspecting, recording and controlling to meet the need of high power and complex drilling controlling. Meanwhile, the improved incremental pid and the multiple algorithm of Fuzzy-pid realize closed-loop feedback control of drilling pressure and rotary speed, what enhance the control system stability and accuracy, and achieve the sake of good control effect so that the system achieves the targets with speed range from 0 to 160r/min and pressure range from 0 to 20MPa.
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