图书简介
This book offers a detailed presentation of the theory and application of control systems with sliding mode in electrical motors and power converters. It demonstrates the methodology of control design and algorithms of control and observation. As practically all current semiconductor devices are used in power electronics as power switches, switching comes with myriad attractive, inherent properties. Sliding mode control systems supply high dynamics to systems, invariability of systems to changes of parameters, and exterior loads in combination with simplicity of design.
馆藏图书馆
Harvard Library
Introduction 1 Problem statement 1.1 Mathematical models of the drive elements 1.1.1 Synchronous motors 1.1.2 Semiconductor power converters 1.2 Drive control problems and their existing solutions 2 Sliding mode in nonlinear dynamic systems 2.1 Plant features and sliding mode design 2.1.1 Sufficient existence conditions of a sliding mode 2.2 Sufficient existence conditions of sliding mode in systems with redundant control 2.3 Sliding mode design 3 State vector estimation 3.1 Information aspects of sliding mode design 3.2 Use of an asymptotical observer of the state variables 3.3 Nonlinear sliding mode observer 3.4 Physical significance of equivalent control 4 Synchronous drive control design 4.1 Single-loop control design 4.1.1 The two step decomposition approach 4.1.2 First step - design of fictitious discontinuous control 4.1.3 Second step - phase voltage control design 4.2 Cascade (subordinated) control 4.3 Static modes optimization 4.3.1 Problem statement 4.3.2 Keeping maximum efficiency and minimum stator current 4.3.3 Keeping cos ?=1 4.3.4 Realization of the offered dependencies 4.3.5 Using control task id z =0 5 Multidimensional switching regularization 5.1 Features of real sliding mode 5.2 Switching loss minimized control for VSI 5.2.1 Analysis of PWM laws 5.2.2 Comparative analysis of switching laws from the switching losses viewpoint 5.2.3 Comparing PWM switching laws - Numerical results 5.2.4 Switching loss minimizing PWM 5.3 Optimal switching losses in real sliding mode 5.4 Switching regularization of discontinuous control vector components 5.4.1 Control vector 5.4.2 Simplified control 5.4.3 Follow-up current vector control structure 5.4.4 Test simulation of a follow-up loop 6 Mechanical coordinates observers 6.1 General formulation of the observation problem 6.2 Observer design for permanent magnet salient-pole synchronous motor with constant magnets 6.2.1 Rotating coordinate system 6.2.2 Motionless coordinate system (alpha, beta) 6.2.3 The simplified observer 6.3 Observer design for the synchronous reluctance motor 6.3.1 Rotating coordinate system 6.3.2 The simplified observer 7 Digital control 7.1 Main principles of digital control 7.1.1 Features of digital control 7.1.2 Digital sliding mode 7.2 Digital control design for the synchronous motor 7.2.1 Synchronous motor difference equations 7.2.2 Angular speed control 7.3 Digital drive mechanical variable estimation 7.3.1 Problem statement 136 7.3.2 Permanent magnet nonsalient-pole synchronous motor state observer 7.3.3 The filter-observer of mechanical variables 7.4 Parameter identification of linear digital system with variable factors and the limited memory depth 7.4.1 Statement of a parameter identification problem 7.4.2 Identification condition of matrix factors 7.4.3 Identification of physical parameters 7.4.4 Moment of inertia identification 7.5 The reference rate limiter 7.5.1 The general problem statement 7.6 Reference rate limiter 7.7 Digital control design for the electric drive with elastic connections 7.7.1 Control problem statement 7.7.2 Elastic mechanical movement difference model 7.7.3 Digital control design of elastic oscillations 7.7.4 State variable observer 8 Practical examples of drive control 8.1 High speed synchronous drive sensorless control 8.1.1 Features of the control system 8.1.2 Simulation model 8.1.3 Drive rating parameters 8.1.4 Sensitivity research to parameter variation 8.1.5 Influence of A/D converter discreteness on current measurements 8.1.6 The influence of VSI \"dead time\" 8.1.7 Conclusions on the simulation 8.2 Digital control system of the electric drive with elastic mechanical connections 8.2.1 Control plant features 8.2.2 Main principles of control design 8.2.3 Dry friction and backslash compensation 8.2.4 Closed loop simulation Index
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