Robust Control of Permanent Magnet Synchronous Machine Based on Passivity Theory

This paper presents a robust control strategy for a Permanent Magnet Synchronous Machine (PMSM) based on passivity theory. Pre‐control terms ensure robustness to variation of parameters. The nominal electrical and mechanical dynamics are treated separately and a cascade structure is obtained. A comparative analysis is done in Matlab‐Simulink with a Simple Adaptive Control (SAC) strategy in terms of settling time, stationary error, time response and energy efficiency. Improvements of the proposed Passivity Based Control (PBC) strategy are shown in comparison with some other PBC controllers.     

Induction motor control based on adaptive passivity

In this paper two new schemes for induction motor control are proposed and compared. Both approaches are based on the concept of adaptive passivity. First, a technique using the scheme of field oriented control (FOC) is proposed, and by means of an adaptive state feedback, a passive equivalent system is obtained. Furthermore, making use of the novel torque‐flux control principle (TFCP), the proposed scheme is greatly simplified. Second, a technique based on energy shaping approach, which does not make use of the FOC scheme, is proposed. The technique is based on interconnection and damping assignment (IDA) control transforming the original system into a passive one. Since this technique does not use the FOC scheme, it gives more flexibility in the implementation. Both techniques are then implemented at laboratory level and compared from experimental viewpoint using as benchmark the standard FOC scheme with PI controllers. Copyright © 2010 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society     

双馈电机的电流解耦控制研究

在基于定子磁链定向的双馈电机控制系统中,由于传统的稳态下的电压前馈补偿,转子电流dq分量存在小幅度振荡问题,本文中采用了一种新的考虑定子磁链微分的电压前馈补偿方法（文中方法B）,取得良好的电流解耦控制效果。仿真结果验证了该方法的正确性。     

Sensorless Control of Induction Machine Supplied by Current Source Inverter

The paper describes the voltage control technique of induction machines supplied by a current source inverter. The control system is based on proposed new multi‐scalar variables, which are named “r.” The control system contains the output filter capacitor's model. In the sensorless control system the Z type backstepping speed observer was applied. The mathematical dependences are confirmed by simulation and experimental research.     

A new family of interconnection and damping assignment passivity‐based controllers

The by‐now standard formulation of interconnection and damping assignment passivity‐based control (for input‐affine systems) proposes the solution of a partial differential equation (PDE) that defines the assignable energy functions and computes the control using the input matrix pseudo‐inverse. However, in its original formulation—a more general design procedure was proposed, which was essentially abandoned because of the difficulties in solving the PDE. In this note, a new family of interconnection and damping assignment passivity‐based controls is proposed by extending this method in the following directions: (i) It allows the desired interconnection and damping matrices to depend on the control signal, giving the possibility to shape the PDE to ensure its solvability; (ii) the PDE directly generates the control signal that have, in general, simpler expressions; and (iii) it is applicable for general nonlinear systems possibly not affine in the control. The technique is illustrated with three examples, including the well‐known boost power converter for which it yields a simple, high‐performance controller. Copyright © 2016 John Wiley & Sons, Ltd.     

基于MATLAB的感应电机SVPWM控制系统的仿真研究

本文阐述了空间矢量脉宽调制技术应用于交流感应电机矢量控制系统的基本原理,在此基础上讨论了间接转子磁场定向电流注入型矢量控制系统的实现方案,并对这种矢量控制系统进行了深入的仿真研究。仿真结果表明这种控制技术可以实现感应电机产生转矩的电流分量和产生磁通的电流分量之间的解耦控制,使感应电机获得与他励直流电机一致的瞬态响应特性,实现了对负载扰动和参考值变化的快速响应。     

Stabilization of an underactuated bottom‐heavy airship via interconnection and damping assignment

This paper focuses on feedback stabilization of a neutrally buoyant and bottom‐heavy airship actuated by only five independent controls (with the rolling motion underactuated). The airship is modelled as an eudipleural submerged rigid body whose dynamics is formulated as a Hamiltonian system with respect to a Lie–Poisson structure. By exploiting the geometrical structure and using the so‐called interconnection and damping assignment (IDA) passivity‐based methodology for port‐controlled Hamiltonian systems, state feedback control laws asymptotically stabilizing two typical motions are designed via La Salle invariance principle and Chetaev instability theorem. Simulation results verify the control laws. Copyright © 2007 John Wiley & Sons, Ltd.     

感应电机SVPWM控制系统的仿真研究

本文阐述了空间矢量脉宽调制技术应用于交流感应电机矢量控制系统的基本原理,在此基础上讨论了间接转子磁场定向电流注入型矢量控制系统的实现方案,并对这种矢量控制系统进行了深入的仿真研究.仿真结果表明这种控制技术可以实现感应电机产生转矩的电流分量和产生磁通的电流分量之间的解耦控制,使感应电机获得与他励直流电机一致的瞬态响应特性,实现了对负载扰动和参考值变化的快速响应.     

A novel induction motor control scheme using IDA-PBC

A new control scheme for induction motors is proposed in the present paper, applying the interconnection and damping assignment-passivity based control （IDA-PBC） method. The scheme is based exclusively on passivity based control, without restricting the input frequency as it is done in field oriented control （FOC）. A port-controlled Hamiltonian （PCH） model of the induction motor is deduced to make the interconnection and damping of energy explicit on the scheme. The proposed controller is validated under computational simulations and experimental tests using an inverter prototype.     

An Adaptive Passivity‐Based Controller of a Buck‐Boost Converter with a Constant Power Load

This paper addresses the problem of regulating the output voltage of a DC‐DC buck‐boost converter feeding a constant power load, which is a problem of current practical interest. Designing a stabilising controller is theoretically challenging because its average model is a bilinear second order system that, due to the presence of the constant power load, is non‐minimum phase with respect to both states. Moreover, to design a high‐performance controller, the knowledge of the extracted load power, which is difficult to measure in industrial applications, is required. In this paper, an adaptive interconnection and damping assignment passivity‐based control—that incorporates the immersion and invariance parameter estimator for the load power—is proposed to solve the problem. Some detailed simulations are provided to validate the transient behaviour of the proposed controller and compare it with the performance of a classical PD scheme.     

矩阵变换器输入侧端口受控耗散哈密尔顿算子建模及无源控制

矩阵变换器无中间直流环节,易受电网扰动和负载扰动的影响.针对这一问题,本文设计了矩阵变换器输入侧无源性控制器以改善控制系统特性.首先,在直–交坐标系下建立输入侧的端口受控耗散哈密尔顿(port-controlled Hamiltonian with dissipation,PCHD)算子模型.然后,设计了基于互联和阻尼配置的无源性控制器,用来实现对输入电流快速准确的跟踪.重新配置了系统的平衡点,通过注入阻尼提高系统的收敛速度,并从理论上对闭环系统的渐进稳定性进行了分析.仿真结果表明,系统在非正常工况下仍能保证输入电流为正弦,相比传统偏差修正法,该控制策略具有更好的动态性能和抗干扰能力.     

Control via interconnection and damping assignment of linear time-invariant systems: a tutorial

Interconnection and damping assignment is a controller design methodology that regulates the behaviour of dynamical systems assigning a desired port-Hamiltonian structure to the closed-loop. A key step for the application of the method is the solution of the so-called matching equation that, in the case of nonlinear systems, is a partial differential equation. It has recently been shown that for linear systems the problem boils down to the solution of a linear matrix inequality that, moreover, is feasible if and only if the system is stabilisable – making the method universally applicable. It has also been shown that if we narrow the class of assignable structures – e.g. to mechanical instead of the larger port-Hamiltonian – the problem is still translated to a linear matrix inequality, but now stabilisability is not sufficient to ensure its feasibility. It is additionally required that the uncontrolled modes are simple and lie on the jω axis, which is consistent with the considered scenario of mechanical systems without friction. The purpose of this article is to present these important results in a tutorial, self-contained form – invoking only basic linear algebra methods.     

基于SVPWM的异步电机矢量控制系统的仿真

首先阐述了空间矢量脉宽调制技术应用于交流感应电机矢量控制系统的基本原理,在此基础上讨论了间接转子磁场定向电压注入型矢量控制系统的实现方案,基于MATLAB/SIMULINK构建了这种矢量控制系统的仿真模型并进行了深入的仿真研究.仿真结果表明了模型的正确性,并验证了该文所建立的调速系统可以实现感应电机产生转矩的电流分量和产生磁通的电流分量之间的解耦控制,使感应电机获得与他励直流电机一致的瞬态响应特性,实现了对负载扰动和参考值变化的快速响应.     

基于MATLAB的感应电机矢量控制系统的仿真

该文根据感应电机矢量控制的基本原理，基于MATLAB／SIMULINK构造了电压型SPWM逆变器供电的感应电机按转子磁场定向的矢量控制系统的仿真模型。通过仿真试验验证了模型的正确性，并分析验证了该文所建立的调速系统具有快速的启动性能及良好的抗扰动性能，基本上实现了完全解耦控制；另外，分析了感应参数变化对调速系统的影响，说明转子电阻及励磁电感等参数对获得良好的调速系统的性能的重要性。该模型可通用于笼型异步电机，在使用时只需输入不同的电机参数即可。     

基于网络控制系统的感应电机非线性控制

针对网络控制系统中存在不确定时延的问题,讨论了网络条件下感应电机的建模与控制．首先基于感应电机的非线性数学模型,运用直接反馈化方法将其线性化,然后在线性化的基础上引入具有时延的网络控制系统,建立了感应电机的网络化控制模型．运用李亚普诺夫函数方法,给出了闭环系统渐近稳定的充分条件,基于相应的线性矩阵不等式可行解,可以求解状态反馈控制律．最后,仿真结果验证了该方法的有效性．     

基于MCS-51单片机的洗衣控制系统

基于MCS-51单片机的洗衣控制系统，控制面板由按键、指示灯和LED显示器组成。按键选择洗衣机工作方式，指示灯配合按键工作，LED显示器则显示洗衣机洗涤和脱水时间。洗衣机的整体电路模块包括键盘矩阵、指示灯、电动机控制及电源电路。控制程序设计包括定时中断服务程序、外中断服务程序及主程序。     

Experimental Investigation of Passive Fault Tolerant Control for Induction Machine Using Sliding Mode Approach

This paper presents a passive fault tolerant control approach dedicated to stator inter‐turn short‐circuit fault of an induction machine. This control is based on sliding mode strategy and is implemented for validation on real‐time data acquisition and control platform. The proposed work highlights the integral sliding mode controller benefits during healthy and faulty operations. It can make the induction machine outputs to track their desired reference signals in finite‐time and allows to obtain a better dynamic response performances even in presence of fault. Moreover to avoid the use of a flux sensor, a second order sliding mode observer is used to estimate the rotor flux. Since the used observer converges in finite time, the closed‐loop stability of the proposed system (controller+observer) is proved using the Lyapunov stability theorem. Experimental results are conducted for squirrel cage induction machine to highlight the efficiency and applicability of the proposed fault tolerant control.     

基于切换系统理论的异步电机最优直接转矩控制

提出一种系统建模和控制策略来实现两电平异步电机最优直接转矩控制来改善传统直接转矩控制存在的磁链和转矩脉动较大的问题。首先,基于切换系统理论建立两电平异步电机传动系统模型,然后在切换模型基础上,建立一个约束条件的有限时间最优控制目标函数,并利用滚动优化策略求解目标函数来实现最优直接转矩控制。仿真结果表明,该方法能够有效减少磁链和转矩脉动,降低逆变器开关频率,具有良好的动、静态性能。     

Taylor polynomial Approximation and Adaptive Passivity‐Based Control Applied to the Level Regulation of a Conical Tank

The techniques of Taylor polynomial approximation (TPA) and adaptive passivity‐based controller (APBC) are combined in this study and applied to the level regulation of a conical tank. The design and comparative experimental results with a classical PI controller are presented. After combining these two approaches a robust adaptive controller named TPA–APBC, which is simpler than the classical APBC and PI controller, is obtained. This new TPA–APBC preserves the stability of the overall system after assuming that the nonlinear system is unknown and that it can be suitably represented by a first‐order linear model with unknown parameters.     

基于嵌入式系统的成缆机控制系统研究

采用嵌入式系统对电线电缆专用设备之一的成缆机操作台及主控制板进行了控制,其中inbuilt system-1完成操作台所进行操作的计算,将参数显示在液晶显示屏,若有非法操作和不良运行状态,即时将信息传给告警器显示,并通过RS232接口与主控板inbuilt system-2进行通信,inbuilt system-2同时...