Power Generation Characteristics of DSMR-PMG

doi:10.12382/bgxb.2023.0902

Abstract

Abstract:

Aiming at the problem of inconvenient charging for military outdoor activities, a double-stator disc motion rectifier permanent magnet generator (DSMR-PMG)that can be carried in military backpacks is proposed, which is small in axial size and easy to carry, and can realize the collection of human movement energy. A multi-ring equivalent analytical model is established based on the structural characteristics and working principle of the generator, The no-load air-gap magnetic density, back electromotive force (EMF), load output voltage and output power of the generator are analytically calculated by integral method, and the calculated results are compared with the simulated results. Through the analysis of the output powers and efficiencies of the generators with different structural parameters and feed speeds, it is concluded that the output power of the generator is not obviously affected by the polar arc coefficient, is less affected by the thickness of permanent magnet and the length of air gap, and is greatly affected by the number of teeth of disc outer rotor and the gear transmission coefficient. The output power and efficiency of the generator can be effectively improved by increasing the modulus, feed speed and effective armature length.

Key words: disc permanent magnet generator, mechanical rectification, electromagnetic characteristics, output power

CLC Number:

TM313

CHEN Yang, LIU Xin. Power Generation Characteristics of DSMR-PMG[J]. Acta Armamentarii, 2024, 45(12): 4612-4622.

Figures/Tables 19

Fig.1 DSMR-PMG structure diagram

Fig.2 Working diagram of DMSR-PMG

Fig.3 DMSR-PMG gear transmission relationship

Fig.4 Multi-ring equivalent analytical model of DSMR-PMG

Fig.5 Axial electromagnetic structure of DMSR-PMG

Table 1 Structural parameters of DSMR-PMG

参数	数值	参数	数值
m	2	D_ui/mm	114
Z_c	48	D_uo/mm	197
Z_b	32	D_li/mm	53
Z_s	16	D_lo/mm	91
Z_o	96	B_r/T	1.25
N_c	30	μ_r	1.05
P	4	δ/mm	1.0
Q	24	b_m/mm	4.3
h_m/mm	4	α_p	0.8

Fig.6 Comparison between theoretical and simulated results of no-load air-gap magnetic density

Fig.7 Comparison between theoretical and simulated results of no-load back EMF

Fig.8 Equivalent circuit diagram of single-phase winding

Fig.9 Comparison of theoretical and simulated results of load output voltage

Fig.10 Influences of structural parameters on output power, losses and efficiency

Fig.11 Influences of structural parameters on volumetric power density

Fig.12 Influence of multiparameter variations on output power

Fig.13 Influence of load resistance on output power

Fig.14 Influence of load resistance on losses

Fig.15 Influence of load resistance on efficiency

Fig.16 Influence of feed speed on output power

Fig.17 Influence of feed speed on losses

Fig.18 Influence of feed speed on efficiency

References 22

[1]	刘忠永, 国敬, 范涛, 等. 高性能永磁同步发电机无位置传感器控制策略[J]. 兵工学报, 2022, 43(11): 2761-2772.
	LIU Z Y, GUO J, FAN T, et al. A high-performance sensorless control strategy using a permanent magnet synchronous generator[J]. Acta Armamentarii, 2022, 43(11): 2761-2772. (in Chinese) doi: 10.12382/bgxb.2021.0664
[2]	马晓军, 袁东, 项宇, 等. 陆战平台综合电力系统及其关键技术研究[J]. 兵工学报, 2017, 38(2): 396-406. doi: 10.3969/j.issn.1000-1093.2017.02.026
	MA X J, YUAN D, XIANG Y, et al. Research on integrated power system and its key techniques of ground combat platform[J]. Acta Armamentarii, 2017, 38(2): 396-406. (in Chinese)
[3]	WANG G, VALLA M, SOLSONA J. Position sensorless permanent magnet synchronous machine drives-a review[J]. IEEE Transactions on Industrial Electronics, 2020, 67(7): 5830-5842.
[4]	赵纪龙, 逯卓林, 韩青峰, 等. 轴向磁通永磁电机系统及关键技术前沿发展综述[J]. 中国电机工程学报, 2022, 42(7): 2744-2765.
	ZHAO J L, LU Z L, HAN Q F, et al. An overview on development of axial flux permanent magnet motor system and the key technology[J]. Proceedings of the CSEE, 2022, 42(7): 2744-2765. (in Chinese)
[5]	李涛, 张幽彤, 梁玉秀, 等. 定子无磁轭模块化轴向磁通永磁电机研究进展综述[J]. 中国电机工程学报, 2021, 41(1): 340-353, 423.
	LI T, ZHANG Y T, LIANG Y X, et al. An overview on research progress of yokeless and segmented armature axial flux permanent magnet machine[J]. Proceedings of the CSEE, 2021, 41(1): 340-353, 423. (in Chinese)
[6]	WANG Z L, CHEN J, LIN L. Progress in triboelectric nanogenerators as a new energy technology and self-powered sensors[J]. Energy & Environmental Science, 2015, 8: 2250-2282.
[7]	WANG Z. Catch wave power in floating nets[J]. Nature, 2017, 542: 159-160.
[8]	SUE C Y, TSAI N C. Human powered MEMS-based energy harvest devices[J]. Applied Energy, 2012, 93: 390-403.
[9]	ROME L C. Backpack for harvesting electrical energy during walking and for minimizing shoulder strain:US20060192386A1[P]. 2006-08-31.
[10]	ROME L C, FLYNN L, GOLDMAN E M, et al. Generating electricity while walking with loads[J]. Science, 2005, 309(5741): 1725-1728. pmid: 16151012
[11]	XIE L H, CAI M J. Human motion: sustainable power for wearable electronics[J]. IEEE Pervasive Computing, 2014, 13(4): 42-49.
[12]	COSTANZO L, LIU M, SCJIAVO A L, et al. Backpack energy harvesting system with maximum power point tracking capability[J]. IEEE Transactions on Industrial Electronics, 2021, 69(1): 506-516.
[13]	SHEPERTYCKY M, LI Q G. Generating electricity during walking with a lower limb-driven energy harvester: targeting a minimum user effort[J]. Plos One, 2015, 10(6): e0127635.
[14]	ZHANG Y L, LUO A X, WANG Y F, et al. Rotational electromagnetic energy harvester for human motion application at low frequency[J]. Applied Physics Letters, 2020, 116(5): 053902.
[15]	LI Z J, ZUO L, KUANG J, et al. Energy-harvesting shock absorber with a mechanical motion rectifier[J]. Smart Materials and Structures, 2012, 22(2): 025008.
[16]	LIU M Y, TAI W CH, LEI Z. Toward broadband vibration energy harvesting via mechanical motion rectification induced inertia-nonlinearity[J]. Smart Materials and Structures, 2018, 27(7):075022.
[17]	TAI W C, LIU M, YUAN Y, et al. On improvement of operation bandwidth of duffing-like vibration based harvesters using a mechanical motion rectifier[C]// Proceedings of ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Cleveland, OH, US:ASME, 2017, 8: DETC 2017-68029.
[18]	朱子恒, 徐琳, 邹俊逸, 等. 机械整流式振动能量回收器的研究[J]. 振动与冲击, 2020, 39(20): 286-294.
	ZHU Z H, XU L, ZOU J Y, et al. A study on a vibration energy harvester with mechanical rectification[J]. Journal of Vibration and Shock, 2020, 39(20): 286-294. (in Chinese)
[19]	张鹏军, 王自勇, 卢卫强, 等. 外能源转管机枪间歇制高功率密度永磁电机设计[J]. 兵工学报, 2022, 43(7): 1498-1509. doi: 10.12382/bgxb.2021.0378
	ZHANG P J, WANG Z Y, LU W Q, et al. Design of an intermittent high power density permanent magnet motor for external energy Gatling machine gun[J]. Acta Armamentarii, 2022, 43(7): 1498-1509. (in Chinese) doi: 10.12382/bgxb.2021.0378
[20]	朱龙飞, 朱建国, 佟文明, 等. 轴向磁通非晶合金永磁电机空载铁耗的解析计算方法[J]. 中国电机工程学报, 2017, 37(3): 923-931.
	ZHU L F, ZHU J G, DONG W M, et al. Analytical method of no-load iron losses of axial flux amorphous alloy permanent magnet motor[J]. Proceedings of the CSEE, 2017, 37(3): 923-931. (in Chinese)
[21]	顾其善. 永磁电机的卡特系数[J]. 中小型电机, 1986(5):11-14.
	GU Q S. The Cater coefficient of permanent magnet electric machines[J]. S&M Electric Machines, 1986(5): 11-14. (in Chinese)
[22]	邢泽智, 王秀和, 赵文良, 等. 表贴式永磁同步电机电磁激振力波计算与定子振动特性分析[J]. 中国电机工程学报, 2021, 41(14): 5004-5013.
	XING Z Z, WANG X H, ZHAO W L, et al. Calculation of electromagnetic force waves and analysis of stator vibration characteristics of surface mount permanent magnet synchronous motor[J]. Proceedings of the CSEE, 2021, 41(14): 5004-5013. (in Chinese)