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基于Fuzzy-PI和MRAS的异步电机变频调速系统的设计与仿真
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作者 陈国童 肖顺根 宋萌萌 《海南大学学报(自然科学版)》 CAS 2014年第1期66-73,共8页
针对PI调节器和有速度传感器的异步电机矢量控制系统,提出Fuzzy-PI和MRAS相融合的无速度传感器的变频调速系统.以转子磁链的电流和电压模型分别计算得到转子磁链的期望值和估计值,构建了基于MRAS的转速辨识方程,根据比例、积分参数的特... 针对PI调节器和有速度传感器的异步电机矢量控制系统,提出Fuzzy-PI和MRAS相融合的无速度传感器的变频调速系统.以转子磁链的电流和电压模型分别计算得到转子磁链的期望值和估计值,构建了基于MRAS的转速辨识方程,根据比例、积分参数的特点,建立一套与转速调节器相匹配的Fuzzy-PI算法,并利用MATLAB/Simulink软件,搭建了异步电机变频调速系统的仿真模型.仿真实验结果表明Fuzzy-PI和MRAS相融合的无速度传感器的变频调速系统具有响应速度快、超调量小、辨识精度高等优良品质,为异步电机的调速系统提供一种新思路. 展开更多
关键词 异步电动机 fuzzypi算法 MRAS 变频调速 仿真
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基于Fuzzy-PI复合控制的感应加热电源的研究
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作者 吕淼 李金刚 《电源技术应用》 2013年第4期6-11,共6页
利用模糊控制算法消除系统稳态误差的性能差、难以达到较高的控制精度,提出了FuzZy—PI切换控制的算法,以TMS320F2812为核心,搭建了Fuzzy—PI复合控制的移相调功式数字控制感应加热电源主电路及控制电路,实现了外围检测调理电路、... 利用模糊控制算法消除系统稳态误差的性能差、难以达到较高的控制精度,提出了FuzZy—PI切换控制的算法,以TMS320F2812为核心,搭建了Fuzzy—PI复合控制的移相调功式数字控制感应加热电源主电路及控制电路,实现了外围检测调理电路、驱动电路、过流过压保护等。实验证明这种基于Fuzzy—PI复合控制,使系统获得良好的稳态及动态性能,可以更好地满足逆变电源的控制要求,具有良好的工程应用前景。 展开更多
关键词 感应加热电源 fuzzypi复合控制DPLL
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基于Fuzzy-PI的电力系统稳定器控制策略的实现
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作者 孙鹤林 《仪器仪表用户》 2006年第6期108-110,共3页
改进的Fuzzy-PI控制策略,模糊控制单元为比例积分控制提供实时增益调节,模糊规则合成推理的改进提高了控制鲁棒性。二区域四机的仿真结果证明施加这种控制策略的电力系统稳定器抑制振荡能力更强,进入稳态时间更短。
关键词 fuzzypi 电力系统稳定器 鲁棒性
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Gaussian PI Controller Network Classifier for Grid-Connected Renewable Energy System
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作者 Ravi Samikannu K.Vinoth +1 位作者 Narasimha Rao Dasari Senthil Kumar Subburaj 《Intelligent Automation & Soft Computing》 SCIE 2023年第1期983-995,共13页
Multi-port converters are considered as exceeding earlier period decade owing to function in a combination of different energy sources in a single processing unit.Renewable energy sources are playing a significant rol... Multi-port converters are considered as exceeding earlier period decade owing to function in a combination of different energy sources in a single processing unit.Renewable energy sources are playing a significant role in the modern energy system with rapid development.In renewable sources like fuel combustion and solar energy,the generated voltages change due to their environmental changes.To develop energy resources,electric power generation involved huge awareness.The power and output voltages are plays important role in our work but it not considered in the existing system.For considering the power and voltage,Gaussian PI Controller-Maxpooling Deep Convolutional Neural Network Classifier(GPIC-MDCNNC)Model is introduced for the grid-connected renewable energy system.The input information is collected from two input sources.After that,input layer transfer information to hidden layer 1 fuzzy PI is employed for controlling voltage in GPIC-MDCNNC Model.Hidden layer 1 is transferred to hidden layer 2.Gaussian activation is employed for determining the output voltage with help of the controller.At last,the output layer offers the last value in GPIC-MDCNNC Model.The designed method was confirmed using one and multiple sources by stable and unpredictable input voltages.GPIC-MDCNNC Model increases the performance of grid-connected renewable energy systems by enhanced voltage value compared with state-of-the-art works.The control technique using GPIC-MDCNNC Model increases the dynamics of hybrid energy systems connected to the grid. 展开更多
关键词 Multi-port converters renewable sources fuzzy pi controller gaussian activation function fuel cell
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柴油机双层隔振系统Fuzzy-PI仿真控制
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作者 龚丽琴 刘志刚 吴云鹏 《黑龙江科技学院学报》 CAS 2004年第1期25-28,共4页
针对模糊控制器存在稳态精度欠佳问题,提出了一种应用于柴油机双层隔振系统的Fuz-zy-PI控制器。它由模糊控制器和常规PI控制器并联而成。仿真研究表明,将Fuzzy-PI控制器引进柴油机双层隔振主动控制系统是有效的。
关键词 fuzzypi控制 主动控制 柴油机双层隔振
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A Novel Asymmetric Three-Phase Cascaded 21 Level Inverter Fed Induction Motor Using Multicarrier PWM with PI and Fuzzy Controller
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作者 A. Abdul Namith T. S. Sivakumaran 《Circuits and Systems》 2016年第11期3922-3950,共29页
Multilevel inverters are gaining popularity in high power applications. This paper proposes a new ladder type structure of cascaded three-phase multilevel inverter with reduced number of power semiconductor devices wh... Multilevel inverters are gaining popularity in high power applications. This paper proposes a new ladder type structure of cascaded three-phase multilevel inverter with reduced number of power semiconductor devices which is used to drive the induction motor. The ultimate aim of the paper is to produce multiple output levels with minimum number of semiconductor devices. This paper uses only 11 switches along with 3 diodes and 4 asymmetrical sources to produce an output voltage of 21 levels. The modulation technique plays a major role in commutation of the switches. Here we implement the multicarrier level shifting pulse width modulation technique to produce the commutation signals for the inverter. The proposed multilevel inverter is used to drive the three-phase induction motor. The mathematical modeling of three-phase induction motor is done using Simulink. Furthermore the PI and fuzzy logic controllers are also used to produce the reference waveform of the level shifting technique which in turn produces the commutation signals of the proposed multilevel converter. The controllers are used to control the speed of the induction motor. The effectiveness of the proposed system is proved with the help of simulation. The simulation is performed in MATLAB/Simulink. From the simulation results, it shows that the proposed multilevel inverter works properly to generate the multilevel output waveform with minimum number of semiconductor devices. The PI and fuzzy logic controller performances are evaluated using the results which indicate that with the help of controllers the harmonics has been reduced and the speed control of induction motor is achieved under different loading conditions. 展开更多
关键词 MULTILEVEL Multicarrier Level Shifting Pulse Width Modulation MC-LS-PWM Proportional Integral pi and fuzzy Logic Controller
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Interval Type-2 Fuzzy Hierarchical Adaptive Cruise Following-Control for Intelligent Vehicles 被引量:3
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作者 Hong Mo Yinghui Meng +1 位作者 Fei-Yue Wang Dongrui Wu 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2022年第9期1658-1672,共15页
Intelligent vehicles can effectively improve traffic congestion and road traffic safety.Adaptive cruise followingcontrol(ACFC)is a vital part of intelligent vehicles.In this paper,a new hierarchical vehicle-following ... Intelligent vehicles can effectively improve traffic congestion and road traffic safety.Adaptive cruise followingcontrol(ACFC)is a vital part of intelligent vehicles.In this paper,a new hierarchical vehicle-following control strategy is presented by synthesizing the variable time headway model,type-2 fuzzy control,feedforward+fuzzy proportion integration(PI)feedback(F+FPIF)control,and inverse longitudinal dynamics model of vehicles.Firstly,a traditional variable time headway model is improved considering the acceleration of the lead car.Secondly,an interval type-2 fuzzy logic controller(IT2 FLC)is designed for the upper structure of the ACFC system to simulate the driver's operating habits.To reduce the nonlinear influence and improve the tracking accuracy for the desired acceleration,the control strategy of F+FPIF is given for the lower control structure.Thirdly,the lower control method proposed in this paper is compared with the fuzzy PI control and the traditional method(no lower controller for tracking desired acceleration)separately.Meanwhile,the proportion integration differentiation(PID),linear quadratic regulator(LQR),subsection function control(SFC)and type-1 fuzzy logic control(T1 FLC)are respectively compared with the IT2 FLC in control performance under different scenes.Finally,the simulation results show the effectiveness of IT2 FLC for the upper structure and F+FPIF control for the lower structure. 展开更多
关键词 Adaptive cruise following-control(ACFC) feedforward+fuzzy proportion integration(pi)feedback(F+FpiF) type-2 fuzzy control variable time headway
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Adaptive Fuzzy Logic Controller for Harmonics Mitigation Using Particle Swarm Optimization
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作者 Waleed Rafique Ayesha Khan +5 位作者 Ahmad Almogren Jehangir Arshad Adnan Yousaf Mujtaba Hussain Jaffery Ateeq Ur Rehman Muhammad Shafiq 《Computers, Materials & Continua》 SCIE EI 2022年第6期4275-4293,共19页
An excessive use of non-linear devices in industry results in current harmonics that degrades the power quality with an unfavorable effect on power system performance.In this research,a novel control techniquebased Hy... An excessive use of non-linear devices in industry results in current harmonics that degrades the power quality with an unfavorable effect on power system performance.In this research,a novel control techniquebased Hybrid-Active Power-Filter(HAPF)is implemented for reactive power compensation and harmonic current component for balanced load by improving the Power-Factor(PF)and Total–Hormonic Distortion(THD)and the performance of a system.This work proposed a soft-computing technique based on Particle Swarm-Optimization(PSO)and Adaptive Fuzzy technique to avoid the phase delays caused by conventional control methods.Moreover,the control algorithms are implemented for an instantaneous reactive and active current(Id-Iq)and power theory(Pq0)in SIMULINK.To prevent the degradation effect of disturbances on the system’s performance,PS0-PI is applied in the inner loop which generate a required dc link-voltage.Additionally,a comparative analysis of both techniques has been presented to evaluate and validate the performance under balanced load conditions.The presented result concludes that the Adaptive Fuzzy PI controller performs better due to the non-linearity and robustness of the system.Therefore,the gains taken from a tuning of the PSO based PI controller optimized with Fuzzy Logic Controller(FLC)are optimal that will detect reactive power and harmonics much faster and accurately.The proposed hybrid technique minimizes distortion by selecting appropriate switching pulses for VSI(Voltage Source Inverter),and thus the simulation has been taken in SIMULINK/MATLAB.The proposed technique gives better tracking performance and robustness for reactive power compensation and harmonics mitigation.As a result of the comparison,it can be concluded that the PSO-basedAdaptive Fuzzy PI system produces accurate results with the lower THD and a power factor closer to unity than other techniques. 展开更多
关键词 Harmonics compensation soft computing technique hybrid fuzzy PSO based pi controller HSAPF power quality
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柔索驱动并联机器人运动控制研究 被引量:7
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作者 訾斌 朱真才 杜敬利 《振动与冲击》 EI CSCD 北大核心 2009年第9期48-51,73,共5页
针对柔索驱动并联机器人的工作特点,研究柔索驱动并联机器人的运动控制方法。通过对柔索驱动并联机器人系统动力学的强非线性、参数不确定性以及受到外界干扰等系统特性的分析,探讨了系统适用的控制策略。进一步,设计了一种将常规PI控制... 针对柔索驱动并联机器人的工作特点,研究柔索驱动并联机器人的运动控制方法。通过对柔索驱动并联机器人系统动力学的强非线性、参数不确定性以及受到外界干扰等系统特性的分析,探讨了系统适用的控制策略。进一步,设计了一种将常规PI控制和Fuzzy控制相结合的Fuzzy-PI混合离散控制策略来实现柔索驱动并联机器人轨迹跟踪控制。这种控制策略不仅能发挥模糊控制鲁棒性强、动态响应快的特点,而且具有常规PI控制器的动态跟踪品质和稳态精度。在此基础上,为了进一步提高Fuzzy-PI混合离散控制系统的适应能力,设计了一种带有自调整因子的模糊控制规则。数值结果表明,在相同给定条件下Fuzzy-PI控制算法、常规模糊控制和离散非线性PID控制算法跟踪期望轨迹时,沿X方向、Y方向和Z方向的跟踪误差分别在±10cm、±7cm、±3cm,±15cm、±8cm、±5cm,±15cm、±9cm、±4cm的范围内。 展开更多
关键词 柔索驱动并联机器人 fuzzypi混合离散控制 非线性piD控制 轨迹跟踪
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注塑机温度控制方法研究 被引量:7
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作者 张开生 吕银芳 王雪梅 《工程塑料应用》 CAS CSCD 北大核心 2007年第7期72-75,共4页
针对传统注塑机温控系统存在的超调量大、调节时间长等缺点,提出了变参数自调整的模糊比例积分(FUZZY-PI)控制器设计思路,阐述了该控制器的设计方法及温控系统的软硬件设计方法。通过仿真实验说明,该系统实现了精密注塑机料筒温度和喷... 针对传统注塑机温控系统存在的超调量大、调节时间长等缺点,提出了变参数自调整的模糊比例积分(FUZZY-PI)控制器设计思路,阐述了该控制器的设计方法及温控系统的软硬件设计方法。通过仿真实验说明,该系统实现了精密注塑机料筒温度和喷嘴温度的准确控制,依此可以取代传统的开关控制及比例积分微分控制,大大提高塑料制品的质量。 展开更多
关键词 注塑机温度 fuzzypi控制器 参数自调整 模糊控制算法 实验仿真
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一种复合控制器在电液系统中的应用 被引量:1
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作者 孟珺遐 王渝 王向周 《控制工程》 CSCD 北大核心 2009年第5期586-590,共5页
针对电液伺服系统模型不精确、参数时变和负载干扰大的特点,提出一种Bang-Bang+Fuzzy-PI的自适应复合控制器。为避免在不同控制方式间切换造成系统抖动,选择高斯函数作为切换曲线,并采用遗传算法对Fuzzy控制器的尺度因子和PI控制器的积... 针对电液伺服系统模型不精确、参数时变和负载干扰大的特点,提出一种Bang-Bang+Fuzzy-PI的自适应复合控制器。为避免在不同控制方式间切换造成系统抖动,选择高斯函数作为切换曲线,并采用遗传算法对Fuzzy控制器的尺度因子和PI控制器的积分常数进行在线优化。比较复合控制器与Fuzzy控制器,Fuzzy-PI控制器和PID控制器的主要动、静态指标,仿真结果表明这种复合控制器调节时间短、稳态精度高、鲁棒性强,具有优良的控制性能。 展开更多
关键词 BANG-BANG控制 fuzzypi控制 自适应控制 遗传算法 电液伺服系统
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Research on fuzzy self-adaptive PI-Smith control in long time-delay system 被引量:3
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作者 WEI Qiu-yue WANG Wen-qing 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2011年第5期114-117,128,共5页
The long time-delay often exists in industrial process. In order to overcome the big overshoot and long regulating time of the long time-delay system control, a new fuzzy self-adaptive PI-Smith control method is propo... The long time-delay often exists in industrial process. In order to overcome the big overshoot and long regulating time of the long time-delay system control, a new fuzzy self-adaptive PI-Smith control method is proposed. This method combines the Smith predictive control with fuzzy self-adaptive proportional-integral (PI) control. The traditional proportional-integral-derivative (PID) controller in Smith predictive control is replaced by fuzzy PI controller which utilizes the principle of fuzzy control to tune parameters of PI controller on-line. The results of simulation for electric furnace show that the method has the advantages of shortening regulating time, no overshoot, no steady-state error, excellent control accuracy, and good adaptive ability to the change of system model. 展开更多
关键词 SELF-ADAPTIVE fuzzy pi control Smith predictive control long time-delay
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模糊控制策略在水泥厂生料磨机负荷控制系统中的应用 被引量:1
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作者 张增敏 谢嘉 《山东农业大学学报(自然科学版)》 CSCD 北大核心 2009年第4期572-576,共5页
针对水泥厂生料磨机的复杂运行工况,常规控制方法难以取得良好的控制效果。本文提出了将模糊控制方法和传统PID改进算法相结合的控制策略,并且设计了一种水泥厂磨机Fuzzy-PI智能节能控制器。该控制器在郑州金龙水泥股份有限公司的运行... 针对水泥厂生料磨机的复杂运行工况,常规控制方法难以取得良好的控制效果。本文提出了将模糊控制方法和传统PID改进算法相结合的控制策略,并且设计了一种水泥厂磨机Fuzzy-PI智能节能控制器。该控制器在郑州金龙水泥股份有限公司的运行结果表明,其对磨机负荷控制行之有效,且取得了良好的经济效益。 展开更多
关键词 生料磨机 模糊控制 piD算法 fuzzypi控制
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新型智能感应加热电源的研究与应用 被引量:1
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作者 刘宁庄 张建成 韦力 《自动化与仪器仪表》 2005年第5期33-35,71,共4页
基于对现代控制方法的探讨,并结合电感应加热领域,研究和探讨了一种模糊的复合智能控制器,并有效地将其应用于100KW感应加热电源,实验波形和分析结果证明,该控制器不仅响应速度快且具有较高的控制精度。
关键词 感应加热 复合控制器 P—fuzzypi
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紧固件电液伺服振动试验台全数字控制系统研究
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作者 阎菲 高安生 《机床与液压》 北大核心 2007年第7期127-129,63,共4页
对振动试验台电液伺服全数字控制系统进行了工程设计,建立了系统的数学模型。根据结构不变性原理,设计补偿装置,减少了伺服系统慢时变或未知非线性参数的影响。本文针对一般模糊控制算法存在的问题,采用控制规则智能调节因子和Fuzzy/PI... 对振动试验台电液伺服全数字控制系统进行了工程设计,建立了系统的数学模型。根据结构不变性原理,设计补偿装置,减少了伺服系统慢时变或未知非线性参数的影响。本文针对一般模糊控制算法存在的问题,采用控制规则智能调节因子和Fuzzy/PI分段控制等一系列措施,克服了传统模糊控制器的缺陷。仿真结果表明上述控制系统优于传统的线性控制。 展开更多
关键词 振动试验 电液伺服系统 建模 结构不变性原理 fuzzy/pi控制
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Structural design, analysis and performance evaluation of a novel planar parallel robot: theory and experiment
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作者 Ding Qinyong (丁庆勇) Sun Lining +1 位作者 Liu Xinyu Ji Junhong 《High Technology Letters》 EI CAS 2005年第3期229-234,共6页
The structural design, analysis and experimental verification of a novel planar parallel robot that includes parallelogram linkages are reported in this paper. A design methodology combining finite element analysis (... The structural design, analysis and experimental verification of a novel planar parallel robot that includes parallelogram linkages are reported in this paper. A design methodology combining finite element analysis (FEA) and flexible dynamics is employed in the analysis. The appropriate natural frequencies of robot throughout workspaee are predicted, and the effects of payload, flexibility of joints, cross section and orientations of robot on the natural frequency are analyzed by simulation. Extensive structural vibration experiments with the completed manipulator confirm the predicted structural vibration characteristics throughout the workspace. The experiment also proves the robot's performance under a fuzzy self-tuning PI controller. 展开更多
关键词 parallel robot structural analysis finite element analysis (FEA) natural frequency fuzzy pi control
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Research on the Intelligent Control Strategy of the Fuel Cell Phase-Shifting Full-Bridge Power Electronics DC-DC Converter
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作者 Lei Zhang Yinlong Yuan +3 位作者 Yihe Sun Yun Cheng Dian Wu Lei Ren 《Energy Engineering》 EI 2022年第1期387-405,共19页
focus of all countries.As an effective new energy,the fuel cell has attracted the attention of scholars.However,due to the particularity of proton exchange membrane fuel cell(PEMFC),the performance of traditional PI c... focus of all countries.As an effective new energy,the fuel cell has attracted the attention of scholars.However,due to the particularity of proton exchange membrane fuel cell(PEMFC),the performance of traditional PI controlled phase-shifted full-bridge power electronics DC-DC converter cannot meet the needs of practical application.In order to further improve the dynamic performance of the converter,this paper first introduces several main topologies of the current mainstream front-end DC-DC converter,and analyzes their performance in the fuel cell system.Then,the operation process of the phase-shifted fullbridge power electronics DC-DC converter is introduced,and the shortcomings of the traditional PI control are analyzed.Finally,a double closed-loop adaptive fuzzy PI controller is proposed,which is characterized by dynamically adjusting PI parameters according to different working states to complete the intelligent control of phase-shifted full-bridge DC-DC converter.The simulation results in MATLAB/Simulink show that the proposed algorithm has good a control effect.Compared with the traditional algorithm,the overshoot and stabilization time of the system are shorter.The algorithm can effectively suppress the fluctuation of the output current of the fuel cell converter,and is a very practical control method. 展开更多
关键词 Phase-shifted full-bridge adaptive fuzzy pi control proton exchange membrane fuel cell MATLAB/SIMULINK
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Analysis of Symmetrical and Asymmetrical Current Source Multilevel Inverter
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作者 D. Tamilarasi T. S. Sivakumaran 《Circuits and Systems》 2016年第11期3469-3484,共17页
The paper proposes a Current Source Multilevel Inverter (CSMLI) with single rating inductor topology. Multilevel inverters are most familiar with power converter’s applications due to reduced dv/dt, di/dt stress, and... The paper proposes a Current Source Multilevel Inverter (CSMLI) with single rating inductor topology. Multilevel inverters are most familiar with power converter’s applications due to reduced dv/dt, di/dt stress, and very efficient for reducing harmonic distortion in the output voltage and output current. The proposed nine-level current source inverter has been tested under symmetrical and asymmetrical modes of operation, and their activities are compared using PI and Fuzzy PI (Proportional Integral) controllers with multicarrier PWM (Pulse Width Modulation) strategy. MATLAB/Simulink simulation has been made for the proposed converter to obtain its performance measures. Some experimental results are given to verify the presented Current Source Multilevel Inverter. 展开更多
关键词 Current Source Inverter Multilevel Inverter Multicarrier PWM Total Harmonic Dis-tortion fuzzy pi Controller
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Integral Performance Criteria Based Analysis of Load Frequency Control in Bilateral Based Market
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作者 P. Anitha P. Subburaj 《Circuits and Systems》 2016年第6期1021-1032,共12页
Performance index based analysis is made to examine and highlight the effective application of Particle Swarm Optimization (PSO) to optimize the Proportional Integral gains for Load Frequency Control (LFC) in a restru... Performance index based analysis is made to examine and highlight the effective application of Particle Swarm Optimization (PSO) to optimize the Proportional Integral gains for Load Frequency Control (LFC) in a restructured power system that operates under Bilateral based policy scheme. Various Integral Performance Criteria measures are taken as fitness function in PSO and are compared using overshoot, settling time and frequency and tie-line power deviation following a step load perturbation (SLP). The motivation for using different fitness technique in PSO is to show the behavior of the controller for a wide range of system parameters and load changes. Error based analysis with parametric uncertainties and load changes are tested on a two-area restructured power system. The results of the proposed PSO based controller show the better performance compared to the classical Ziegler-Nichols (Z-N) tuned PI and Fuzzy Rule based PI controller. 展开更多
关键词 Load Frequency Control Particle Swarm Optimization Bilateral Market Area Control Error fuzzy Rule Based pi Controller Parametric Uncertainties
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