改进效率控制推进电机的优化分析

蔡清男; 朱志宇

doi:10.3969/j.issn.1673-3185.2017.06.018

改进效率控制推进电机的优化分析

doi: 10.3969/j.issn.1673-3185.2017.06.018

蔡清男,
朱志宇^,

江苏科技大学电子信息学院, 江苏镇江 212003

详细信息

作者简介:
蔡清男, 男, 1992年生, 硕士生。研究方向:船舶电力系统。E-mail:15068741241@163.com

通讯作者:
朱志宇(通信作者), 男, 1971年生, 教授。研究方向:电力系统自动化, 智能控制, 信号与信息处理, 电磁兼容等。E-mail:160782704@qq.com

中图分类号: U664.14;TP272
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- 文章访问数: 76
- HTML全文浏览量: 14
- PDF下载量: 85
- 被引次数: 0
出版历程
- 收稿日期: 2017-04-25
- 网络出版日期: 2017-11-28
- 刊出日期: 2017-12-08

Optimization analysis of propulsion motor control efficiency

Qingnan CAI,
Zhiyu ZHU^,

School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212003, China

摘要

摘要: 目的为了加强对推进电机的控制效果，在实际控制过程中减少能量的损耗，方法在传统的推进电机等值电路上，增加铁损电流分量，通过定义引入功率匹配比，寻找电机在给定转速下最高的运行效率，并探讨此功率匹配比对应的磁通；在原有的电机矢量控制中加入效率优化控制模块，以起到电机效率优化、船舶运行节能的效果。结果 MATLAB/Simulink仿真测试结果显示，加入效率优化控制模块的方法基本适用于各种工况，改进后的电机模型的运行效率明显高于传统电机模型，并且动态性能良好。结论工程上可以借鉴该电机效率优化控制方法，以达到节能的效果。
- 推进电机 /
- 功率匹配比 /
- 效率优化 /
- 节能
Abstract: Objectives This paper aims to strengthen the control effect of propulsion motors and decrease the energy used during actual control procedures. Methods Based on the traditional propulsion motor equivalence circuit, we increase the iron loss current component, introduce the definition of power matching ratio, calculate the highest efficiency of a motor at a given speed and discuss the flux corresponding to the power matching ratio with the highest efficiency. In the original motor vector efficiency optimization control module, an efficiency optimization control module is added so as to achieve motor efficiency optimization and energy conservation. Results MATLAB/Simulink simulation data shows that the efficiency optimization control method is suitable for most conditions. The operation efficiency of the improved motor model is significantly higher than that of the original motor model, and its dynamic performance is good. Conclusions Our motor efficiency optimization control method can be applied in engineering to achieve energy conservation.
- propulsion motor /
- power matching ratio /
- efficiency optimization /
- energy conservation

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图 1 传统电机等值电路图

Figure 1. Traditional motor equivalent circuit diagram

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图 2 改进电机等值电路图

Figure 2. The improved motor equivalent circuit diagram

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图 3 考虑铁损与未考虑铁损电机模型仿真结果

Figure 3. The simulation results of motor model with/without considering the iron loss

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图 4 一定转速下功率匹配比与运行效率的关系

Figure 4. The relationship between power matching ratio and efficiency under a certain speed

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图 5 不同转速下磁通随负载转矩的变化趋势

Figure 5. The change trend of magnetic flux with load torque under different speed

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图 6 优化控制适用区域

Figure 6. The applicable area under optimization control

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图 7 效率优化模块

Figure 7. Efficiency optimization module

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图 8 不同转速下效率优化对比结果

Figure 8. The efficiency optimization comparison results under different speed

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图 9 传统矢量控制与效率优化控制动态响应对比结果

Figure 9. Dynamic response results comparison between traditional vector control and efficiency optimization control

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图 10 传统矢量控制与效率最优控制转矩对比结果

Figure 10. Torque results comparison between traditional vector control and efficiency optimization control

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表 1 不同转速对应的功率匹配比

Table 1. Power matching ratio under different speed

n/（r·min^-1）	λ
50	0.791 7
100	0.817 5
150	0.846 9
200	0.878 4
250	0.911 2
300	0.944 8
350	0.978 9
400	1.013 4
450	1.047 4
500	1.082 5
550	1.117 1
600	1.151 5
650	1.185 8
700	1.219 8
750	1.253 7
800	1.291 7
850	1.326 3
900	1.361 2
950	1.395 5
1 000	1.429 7

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表 2 电机参数

Table 2. The parameters of the motor

参数	数值
额定功率P_e/kW	180
额定转速n_e/（r·min^-1）	1 000
额定线电压（Y型）U_e/V	690
额定线电流（Y型）I_e/A	198
转动惯量J/（kg·m²）	7.3
等效磁化电抗X_m/Ω	4.220 7
等效定子漏电抗X_s/Ω	0.175 6
等效转子漏电抗X_r/Ω	0.381 3
等效定子电阻R_s/Ω	0.038 4
等效转子电阻R_r/Ω	0.030 3
阻尼常数d	0.001
极数p	6（3对）
同步频率f_e/Hz	50
电抗基频f_b/Hz	50

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表 3 传统矢量控制下推进电机运行效率

Table 3. Propulsion motor running efficiency under traditional vector control

T/(N·m)	效率η/%
T/(N·m)	100 r/min	300 r/min	500 r/min	700 r/min	740 r/min
200	8.70	15.51	19.88	26.25	27.37
400	15.28	27.46	35.52	41.11	43.87
600	19.88	36.32	47.35	55.21	56.63
800	22.96	42.42	55.42	65.04	65.74
1 000	25.01	46.56	60.95	71.82	72.53
1 200	26.34	49.46	65.15	76.63	77.12
1 400	27.21	51.51	67.64	80.02	80.65
1 600	27.75	52.99	69.74	82.55	84.87
1 800	28.09	54.08	71.35	84.04	85.63
2 000	28.31	54.91	72.61	85.18	87.66
2 200	28.38	55.57	73.63	86.07	87.33

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表 4 效率优化控制下推进电机运行效率

Table 4. Propulsion motor running efficiency under efficiency optimization control

T/(N·m)	效率η/%
T/(N·m)	100 r/min	300 r/min	500 r/min	700 r/min	740 r/min
200	17.16	29.13	41.72	48.42	49.57
400	20.85	38.05	49.96	58.21	59.51
600	22.91	42.09	55.45	64.41	66.03
800	24.67	45.23	59.73	69.29	71.18
1 000	25.28	47.93	63.21	73.42	75.44
1 200	26.37	49.92	66.22	77.02	79.09
1 400	27.72	51.77	68.86	80.09	82.23
1 600	29.09	53.46	71.13	83.03	84.87
1 800	29.79	55.08	73.37	85.37	86.37
2 000	31.39	56.41	75.41	86.95	87.17
2 200	31.92	57.71	77.24	86.92	87.92

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