基于智能控制算法的高速电机功率转换系统设计

doi:10.13229/j.cnki.jdxbgxb20210058

Abstract

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

CLC Number:

TN432

Li-heng WANG,Ming ZHUANG,Kai YUAN. Design of high speed motor power conversion system based on intelligent control algorithm[J].Journal of Jilin University(Engineering and Technology Edition), 2022, 52(4): 934-941.

Figures/Tables 11

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References 12

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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

序号	项目	数据
1	增压端入口压力/MPa	0.35
2	增压端出口压力/MPa	0.5873
3	增压端流量/（g·s^-1）	1011
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/MPa	0.5773
7	膨胀端出口压力/MPa	0.357
8	膨胀端流量/（g·s^-1）	1011
9	膨胀端入口温度/℃	-55.12
10	膨胀端出口温度/℃	-80

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^-1）	1.1
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

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^-3）	0.4904
	反电动势/VDC	600
	螺纹/%	3
	最大速度@开环/（r·min^-1）	36 060
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/T	0.7497
	输出功率/kW	50.695
	效率/%	93.8467
	升温60分钟/°C	109
	功率因数	0.881
	相电压/V	219.6509
	L_d /mH	0.2484
	L_q /mH	0.3777
	通量PM/（V·m^-1）	0.0691
	铜损耗/W	389.2162
	交流涡流损耗/W	520.3495
	铁损失/W	358.039
	其他损失/W	2056.3457
	正常输入电压/V	380
	控制角/（°）	15
	电压利用率/%	0.96

		项目
		1	2	3	4	5
设置转换目标	有功功率/kW	50	48	50	50	49
设置转换目标	无功功率/kW	15	12	14	13	15
传统电机功率转换系统	有功功率/kW	48	45	46	46	47
传统电机功率转换系统	无功功率/kW	14	11	12	12	14
文献［8］提出电机功率转换系统	有功功率/kW	50	48	48	49	47
文献［8］提出电机功率转换系统	无功功率/kW	13	11	13	12	14
设计高速电机功率转换系统	有功功率/kW	50	48	49	50	50
设计高速电机功率转换系统	无功功率/kW	15	12	13	12	15

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

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