§7-1 斩波器基本原理 §7-2 晶闸管斩波器 §7－3 多象限运行 §7-4 交流调压器基本原理 §7-5 单相交流调压器 §7-6 三相交流调压器

§１.１ 晶闸管的结构和工作原理 §１-２晶闸管的特性 §１-３晶闸管的主要参数 §１-４大功率二极管 §１-5 散热技术

一、功率晶体管GTR 二、功率功效应晶体管（P-MOSFET） 三、绝缘栅双极型晶体管（IGBT） 四、自关断器件驱动电路

1 Introduction 2 Deterministic Dynamic Programming and Viscosity Solutions 2.1 Introduction 2.2 Value Functions are Viscosity Solutions 2.3 Comparison and Uniqueness 3 Stochastic Control 3.1 Some Probability Theory 3.2 Controlled State Space Models 3.3 Filtering 3.4 Dynamic Programming - Case I : Complete State Information 3.5 Dynamic Programming - Case II : Partial State Information 3.6 Two Continuous Time Problems 4 Robust Control 4.1 Introduction and Background 4.2 The Standard Problem of H∞ Control 4.3 The Solution for Linear Systems 4.4 Risk-Sensitive Stochastic Control and Robustness 5 Optimal Feedback Control of Quantum Systems 5.1 Preliminaries 5.2 The Feedback Control Problem 5.3 Conditional Dynamics 5.4 Optimal Control 5.5 Appendix: Formulas for the Two-State System with Feedback Example 6 Optimal Risk-Sensitive Feedback Control of Quantum Systems 6.1 System Model

电力电子学是研究电力的传送、电力的变换、电力的控制和电力的开关的电子学， 又称为功率电子学， 工业上称它为电力电子技术或半导体变流技术。 内容概要： 无触点开关 交流不间断电源 高压直流输电 静止无功补偿器 静止无功发生器 有源电力滤波器 可再生能源与电网的互联 灵活交流输电

3.1 Introduction 3.2 Typical test signals for time response of control systems 3.3 First –Order Systems 3.4 Performance of a Second-Order System 3.5 Concept of Stability 3.6 The Relative Stability of Feedback Control Systems

一、土壤耕作动力学 1、土壤耕耘部件表面发生粘附的原因是什么有何危害?如何避免? 2、耕耘机械对土壤施力使之松碎有那几种方式?试述其应用条件,并从能量消耗方面评述各种方式的利弊?

学习目标: 一、掌握算术、逻辑和布尔运算符 二、自动类型转换和强制类型转换 三、条件判断语句 四、 switch结构

Frequency response is the analysis of the response of systemswhen subjected to a sinusoidal change in input. When a linear system is subjected to a sinusoidal input, its ultimate response is also a sustained sinusoidal wave, with the same frequency. The figure below compares the output response of a system (solid line) with a sinusoidal input (dashed line) disturbing the system

System compensation is the process of designing a controller that will produce an acceptable transient response while maintaining a desired steady-state accuracy .These two design objectives are conflicting in most systems ,since small errors imply high gains reduce system stability and may even drive the system unstable .Compensation may be thought of as the process of increasing the stability of a system without reducing its accuracy below minimum acceptable standards