飞轮储能电机驱动系统设计与研究

论文总字数：32677字

摘 要

飞轮储能技术以其高储能密度、高能量转换效率、动态响应快以及长寿命等优点在电动汽车、航天、清洁能源 、电力 、交通等方面展现出了很好的应用前景，受到国内外学者的广泛研究。飞轮储能电机驱动系统是由电力电子变换装置、飞轮电机和飞轮转子组成的应用于飞轮储能的驱动系统。本文主要围绕飞轮储能电机驱动系统的拓扑结构，飞轮储能电机驱动系统的储能控制和飞轮储能电机驱动系统的释能控制三部分展开研究。

本文以额定功率2kW、转速20000r/min、储能0.05kWh的飞轮储能系统为研究对象，对其储能以及释能运行中的相关问题展开研究。首先，本文分析了飞轮储能系统的运行原理并依据飞轮储能系统的运行特点和要求选择飞轮电机，综合比较飞轮电机的三相全桥拓扑和三相半桥拓扑后设计出电力电子变流装置并给出DC-DC变换器加三相全桥的系统结构拓扑图。第二，本文对飞轮储能系统储能模式的工作原理进行分析并比较恒转矩启动、恒功率启动以及混合启动的优缺点，提出储能模式下采用转速电流双闭环控制的控制策略。第三，本文对飞轮储能系统释能模式的工作原理进行分析并根据释能运行特点提出释能模式下采用电压电流双闭环控制的控制策略。

最后，本文通过建立飞轮储能系统变流装置的等效模型，推导电路主要参数计算公式，并利用Matlab/Simulink搭建飞轮储能驱动系统仿真模型，验证了设计的正确性。

关键词：飞轮储能，DC-DC变换器，三相全桥,系统拓扑结构，双闭环，Matlab仿真

ABSTRACT

Flywheel energy storage technology, with its advantages of high energy storage density, high energy conversion efficiency, fast dynamic response and long life, has shown a good application prospect in electric vehicles, aerospace, clean energy, electric power, transportation and other aspects, and has been widely studied by scholars at home and abroad. The flywheel energy storage motor drive system is a drive system composed of a power electronic converter, a flywheel motor and a flywheel rotor for energy storage of the flywheel. This thesis mainly focuses on the topological structure of the flywheel energy storage motor drive system, the energy storage control of the flywheel energy storage motor drive system and the release control of the flywheel energy storage motor drive system.

In this thesis, the flywheel energy storage system with rated power of 2kW, rotational speed of 20000r/min and energy storage capacity of 0.05kwh is taken as the research object, and related problems in energy storage and energy release operation are studied. Firstly, this thesis analyzes the operating principle of the flywheel energy storage system and selects the flywheel motor according to the operating characteristics and requirements of the flywheel energy storage system. After comprehensively comparing the three-phase full-bridge topology and three-phase half-bridge topology of the flywheel motor, the power electronic converter is designed and the system structure topology diagram of dc-dc converter plus the three-phase full-bridge is given. Secondly, this thesis analyzes the working principle of energy storage mode of flywheel energy storage system and compares the advantages and disadvantages of constant torque start, constant power start and mixed start, and proposes the control strategy of double closed-loop control of rotational speed current in energy storage mode. Thirdly, this thesis analyzes the working principle of the energy release mode of the flywheel energy storage system and puts forward the control strategy of dual closed-loop voltage and current control under the energy release mode according to the characteristics of energy release operation.

Finally, by establishing the equivalent model of the flywheel energy storage system converter, the main parameters calculation formula of the circuit is derived, and the simulation model of the flywheel energy storage drive system is built by Matlab/Simulink, which verifies the correctness of the design.

KEY WORDS: Flywheel energy storage, DC-DC converter, Three-phase full bridge, System topology, Double closed loop, Matlab simulation

目 录

摘要 Ⅰ

Abstract Ⅱ

第一章 绪论 1

1.1课题背景和意义 1

1.2飞轮储能技术的发展现状 3

1.2.1飞轮储能电机驱动系统组成 3

1.2.2飞轮储能电机驱动系统运行原理 4

1.2.3飞轮储能技术的发展现状 5

1.3飞轮储能电机驱动系统的关键问题 6

1.3.1飞轮储能电机驱动系统拓扑结构 6

1.3.2飞轮储能电机驱动系统储能控制 6

1.3.3飞轮储能电机驱动系统释能控制 7

1.4本文主要研究内容 7

第二章 飞轮储能电机驱动系统拓扑结构的研究与设计 8

2.1引言 8

2.2飞轮电机的选择 8

2.3飞轮电机拓扑结构的选择 9

2.3.1三相半桥驱动电路 9

2.3.2三相全桥驱动电路 10

2.4系统拓扑结构总体设计 11

2.4.1系统总体拓扑结构 11

2.4.2储能时电源侧变换器结构选择 12

2.4.3释能时电源侧变换器结构选择 12

2.5本章小结 13

第三章 飞轮储能电机驱动系统储能控制 14

3.1引言 14

3.2飞轮储能电机驱动系统储能控制策略 14

3.2.1飞轮储能系统储能模式分析 14

3.2.2启动方式比较 14

3.3转速双环调速系统 15

3.3.1 buck变换器电路参数的选取 15

3.3.2飞轮电机的传递函数模型 18

3.3.3 控制器设计 21

3.4本章小结 25

第四章 飞轮储能电机驱动系统释能控制 26

4.1引言 26

4.2飞轮储能电机驱动系统释能控制策略 26

4.2.1飞轮储能系统释能模式分析 26

4.2.2 boost变换器工作原理分析 26

4.3电压双环调压系统 28

4.3.1 boost变换器的参数获取 28

4.3.2 控制器设计 28

4.4本章小结 30

第五章 基于MATLAB的系统建模与仿真 31

5.1引言 31

5.2飞轮电机驱动系统储能模式模型搭建与仿真 31

5.3飞轮电机驱动系统释能模式模型搭建与仿真 33

5.4本章小结 37

结 论 38

参考文献（References） 39

附 录 42

致 谢 43

第一章 绪论

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