吉林大学学报(工学版) ›› 2022, Vol. 52 ›› Issue (4): 934-941.doi: 10.13229/j.cnki.jdxbgxb20210058

• 通信与控制工程 • 上一篇    

基于智能控制算法的高速电机功率转换系统设计

王礼恒1,2(),庄明1,袁恺1   

  1. 1.中国科学院 合肥物质科学研究院等离子体物理研究所,合肥 230031
    2.中国科学技术大学 科学岛分院,合肥 230026
  • 收稿日期:2021-01-12 出版日期:2022-04-01 发布日期:2022-04-20
  • 作者简介:王礼恒(1981-),男,博士研究生,中级工程师.研究方向:高速电机设计及其优化分析,智能控制.E-mail:wangliheng210106@163.com
  • 基金资助:
    “十三五”国家重大科技基础设施项目(2018-000052-73-01-001228);安徽省自然科学基金项目(1808085ME124)

Design of high speed motor power conversion system based on intelligent control algorithm

Li-heng WANG1,2(),Ming ZHUANG1,Kai YUAN1   

  1. 1.Institute of Plasma Physics Chinese Academy of Sciences,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China
    2.Science Island Branch,University of Science and Technology of China,Hefei 230026,China
  • Received:2021-01-12 Online:2022-04-01 Published:2022-04-20

摘要:

为了解决传统功率转换系统中存在的转换误差大的问题,提出基于智能控制算法的高速电机功率转换系统设计。在传统硬件系统的基础上,结合智能控制算法中模糊神经网络的运行原理设计控制器设备,实现对双向Buck转换器、移相电抗器、整流器和逆变器等设备的改装,并调整系统的硬件连接电路。以高速电机为研究对象,分析其基本工作特性。搭建模糊神经网络控制模型,在该模型下以高速电机的工作数据为基础,计算电机瞬时功率,利用转换器设备通过产生反向电流或转矩脉动信号增益的方式,实现高速电机功率的转换功能。实验结果表明:与传统功率转换系统的对比,设计转换系统的平均转换误差降低了1.7 kW,且通过功率转换系统的应用能够实现对高速电机功率的有效控制,在实际应用中具有较高的利用价值。

关键词: 智能控制算法, 高速电机, 电机功率, 功率转换系统

Abstract:

In order to solve the problem of large conversion error in traditional power conversion system, a design of high-speed motor power conversion system based on intelligent control algorithm is proposed. On the basis of traditional hardware system, combined with the operation principle of fuzzy neural network in intelligent control algorithm, the controller equipment is designed to realize the modification of bidirectional buck converter, phase-shift reactor, rectifier and inverter, and adjust the hardware connection circuit of the system. Taking the high-speed motor as the research object, its basic working characteristics are analyzed. A fuzzy neural network control model is established. In this model, the instantaneous power of high-speed motor is calculated based on the working data of high-speed motor, and the power conversion function of high-speed motor is realized by the way of generating reverse current or torque ripple signal gain. The experimental results show that, compared with the traditional power conversion system, the average conversion error of the designed conversion system is reduced by 1.7 kW, and the application of the power conversion system can realize the effective control of high-speed motor power, which has a high utilization value in practical application.

Key words: intelligent control algorithm, high speed motor, motor power, power conversion system

中图分类号: 

  • TN432

图1

模糊神经网络控制器结构图"

图2

双向降压转换器"

图3

逆变器主电路图"

图4

功率变换电路图"

表1

实验高速电机具体性能数据 (high-speed motor)"

序 号性 能数 据
1类 别水冷高速永磁体同步电机
2额定数值380 V,96 A,50 kW,35 000 r/min
3转子构造外径87.4 mm,轴向140 mm,2极表贴,单极下永磁体分三段平行充磁,缠绕高强度的碳纤维护套
4定子构造

外径185 mm,内径89 mm,轴向140 mm

24槽的3相双层短距叠绕组斜1槽

5主要材料定转子铁心B20AT1500永磁体SmCo?XGS30H
6电机应用两端挂叶轮的制冷设备

表2

轴系转子具体性能数据"

序 号项 目数 据
1增压端入口压力/MPa0.35
2增压端出口压力/MPa0.5873
3增压端流量/(g·s-11011
4增压端入口温度/℃30
5增压端出口温度/℃100
6膨胀端入口压力/MPa0.5773
7膨胀端出口压力/MPa0.357
8膨胀端流量/(g·s-11011
9膨胀端入口温度/℃-55.12
10膨胀端出口温度/℃-80

表3

实验高速电机的应用环境 (speed motor)"

序 号项 目数 据
1工作环境大气环境
2具体应用目的挂涡轮做冷却应用
3进气大气压/个3.5
4排气大气压/个5.7
5流量/(kg·s-11.1
6电机内部大气压压力/个6
7压缩机进气温度/35
8压缩机排气温度/℃100

图5

高速电机外观结构图"

表4

高速电机运行状态参数设置"

运行状态参数名称参数值
空载状态P2P齿槽转矩/(N·m)0.0495
最大气隙磁通密度/(kg·m-30.4904
反电动势/VDC600
螺纹/%3
最大速度@开环/(r·min-136 060
额定状态输出转矩13.8325
转矩脉动/参考值<5%4.8994
气隙磁通密度/T0.7497
输出功率/kW50.695
效率/%93.8467
升温60分钟/°C109
功率因数0.881
相电压/V219.6509
Ld /mH0.2484
Lq /mH0.3777
通量PM/(V·m-10.0691
铜损耗/W389.2162
交流涡流损耗/W520.3495
铁损失/W358.039
其他损失/W2056.3457
正常输入电压/V380
控制角/(°)15
电压利用率/%0.96

表5

功率转换功能测试结果"

项 目
12345
设置转换目标有功功率/kW5048505049
无功功率/kW1512141315
传统电机功率转换系统有功功率/kW4845464647
无功功率/kW1411121214
文献[8]提出电机功率转换系统有功功率/kW5048484947
无功功率/kW1311131214
设计高速电机功率转换系统有功功率/kW5048495050
无功功率/kW1512131215

图6

高速电机消耗功率测试曲线"

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