Design and experimental research on flywheel energy storage system of beam pumping unit

doi:10.19799/j.cnki.2095-4239.2021.0340

Abstract

Abstract:

The current power consumption of beam pumping units in service exceeds 50% of the total power consumption of oil field production, and their overall efficiency is often less than 30%. The low efficiency of the pumping unit system results in a significant waste of electricity. The operating principle and structural characteristics of the beam pumping unit allow for the incorporation of flywheel energy-storage devices to improve their efficiency. A flywheel energy-storage system suitable for beam pumping units was designed, a pumping unit dynamics simulation model was established, and a corresponding experimental test platform was built to validate the feasibility of the energy-storage systems using simulation analysis and experimental research, and the effect of adding energy-storage flywheel on the pumping unit's energy consumption was discussed. The results indicate that the energy-storage flywheel releases energy during the upper stroke and absorbs it during the lower stroke. With the addition of the flywheel, the peak value of the motor power curve decreases from 646 to 517 W, whereas the valley power of the motor changes from -361 to -296 W, implying that the peak value decreases and the valley value increases, resulting in a more smooth operation of the motor. Finally, the pumping unit's energy-saving effect was verified by comparing the experimental data. The result shows that under the condition of constant stroke times and similar load, the experimental result is close to the conclusion of the simulation analysis. Adding a flywheel energy-storage device saves 15.7% of energy and has an obvious energy-saving effect, and it serves as a reference for the use of flywheel energy-storage systems in beam pumping units to achieve energy saving and consumption reduction.

Key words: pumping unit, flywheel energy storage, system design, energy saving, experiment

CLC Number:

TE 933

Yong ZHOU, Xiangyu CHEN, Lin JIAN, Fuhui WANG, Degao TIAN, Chuanjun HAN. Design and experimental research on flywheel energy storage system of beam pumping unit[J]. Energy Storage Science and Technology, 2022, 11(2): 593-599.

Figures/Tables 14

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Table 1

Fig. 6

Table 2

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

Fig. 12

References 12

1	金钟辉, 彭勇, 费凡, 等. 数字化抽油机技术现状和发展趋势[J]. 石油机械, 2014, 42(12): 65-68.
	JIN Z H, PENG Y, FEI F, et al. The status and development trends of digital pumping technology[J]. China Petroleum Machinery, 2014, 42(12): 65-68.
2	刘昕晖, 李春爽, 陈琳, 等. 游梁式抽油机节能技术综述[J]. 吉林大学学报(工学版), 2021, 51(1): 1-26.
	LIU X H, LI C S, CHEN L, et al. Review of energy saving technologies for beam pumping units[J]. Journal of Jilin University (Engineering and Technology Edition), 2021, 51(1): 1-26.
3	FENG Z M, TAN J J, LI Q, et al. A review of beam pumping energy-saving technologies[J]. Journal of Petroleum Exploration and Production Technology, 2018, 8(1): 299-311.
4	韩传军, 田德高, 周勇. 飞轮储能游梁式抽油机仿真分析[J]. 储能科学与技术, 2020, 9(4): 1186-1192.
	HAN C J, TIAN D G, ZHOU Y. Simulation analysis of flywheel energy storage beam pumping unit[J]. Energy Storage Science and Technology, 2020, 9(4): 1186-1192.
5	AWADALLAH M A, VENKATESH B. Energy storage in flywheels: An overview[J]. Canadian Journal of Electrical and Computer Engineering, 2015, 38(2): 183-193.
6	LI X J, PALAZZOLO A. A review of flywheel energy storage systems: State of the art and opportunities[J]. Journal of Energy Storage, 2022, 46: doi: 10.1016/j.est.2021.103576.
7	王群章, 陈杨, 刘勤, 等. 抽油机节能技术的集成应用[J]. 石油天然气学报, 2014(03X): 376-378.
	WANG Q Z, CHEN Y, LIU Q, et al. Integrated application of energy-saving technology for pumping units[J]. Journal of Oil and Gas Technology, 2014(03X): 376-378.
8	王紫旭. 游梁式抽油机电机功率动态调整技术[J]. 大庆石油地质与开发, 2018, 37(3): 101-103.
	WANG Z X. Dynamic adjusting technique and application of the motor power of the beam pumping unit[J]. Petroleum Geology & Oilfield Development in Daqing, 2018, 37(3): 101-103.
9	王义龙, 赵海森, 詹阳, 等. 用于游梁式抽油机电动机系统能耗分析的实用模型[J]. 中国电机工程学报, 2017, 37(13): 3909-3919.
	WANG Y L, ZHAO H S, ZHAN Y, et al. Practical model for energy consumption analysis of beam pumping units and motor systems[J]. Proceedings of the CSEE, 2017, 37(13): 3909-3919.
10	吴俊飞, 王倩, 金鑫, 等. 抽油机新型曲柄自动调平衡机构设计与应用[J]. 机械强度, 2019, 41(5): 1254-1259.
	WU J F, WANG Q, JIN X, et al. Design and application of new type of crank automatic adjustment mechanism of pumping unit[J]. Journal of Mechanical Strength, 2019, 41(5): 1254-1259.
11	张勇. PL-ZNCY系列抽油机变频监控系统[J]. 油气田地面工程, 2014, 33(6): 70-71.
	ZHANG Y. PL-ZNCY series pumping unit frequency conversion monitoring system[J]. Oil-Gas Field Surface Engineering, 2014, 33(6): 70-71.
12	于苏杭, 郭文勇, 滕玉平, 等. 飞轮储能轴承结构和控制策略研究综述[J]. 储能科学与技术, 2021, 10(5): 1631-1642.
	YU S H, GUO W Y, TENG Y P, et al. A review of the structures and control strategies for flywheel bearings[J]. Energy Storage Science and Technology, 2021, 10(5): 1631-1642.

尺寸参数	数值
前臂长/m	3.00
后臂长/m	2.40
连杆长/m	3.35
曲柄半径/m	1.15
支架中心到曲柄轴的水平距离/m	2.30
支架中心到底座的竖直距离/m	5.26
曲柄转轴到底座的竖直距离/m	2.06

参数	数值
密度/(kg/m³)	7800
宽度/mm	150
外径/mm	300
轴孔直径/mm	40
转动惯量/(kg/m²)	0.27

[1]	Xiaojie YANG, Haiyun WANG, Zhongchuan JIANG, Zhanghua SONG. Bidirectional power flow strategy design of BLDC motor for flywheel energy storage [J]. Energy Storage Science and Technology, 2022, 11(7): 2233-2240.
[2]	Junze GAO, Yibing LIU, Chuandi ZHOU, Haiting HE, Xin WU. Magnetic circuit design and magnetic analytical model of permanent magnet suspension bearing for flywheel [J]. Energy Storage Science and Technology, 2022, 11(5): 1437-1445.
[3]	Hui TIAN, Dong HUA, Maoli MAN, Chunzhe LIU, Guojun LI, Xiongwen ZHANG. Experimental study on carbon deposition characteristics of planar solid oxide fuel cell [J]. Energy Storage Science and Technology, 2022, 11(5): 1314-1321.
[4]	Luyu GAN, Rusong CHEN, Hongyi PAN, Siyuan WU, Xiqian YU, Hong LI. Multiscale research strategy of lithium ion battery safety issue： Experimental and simulation methods [J]. Energy Storage Science and Technology, 2022, 11(3): 852-865.
[5]	Shusheng LI, Jialiang WANG, Guangjun LI, Dachun WANG, Yadong CUI. Demonstration applications in wind solar energy storage field based on MW flywheel array system [J]. Energy Storage Science and Technology, 2022, 11(2): 583-592.
[6]	Yulong CHEN, Xin WU, Wei TENG, Yibing LIU. Power coordinated control strategy of flywheel energy storage array for wind power smoothing [J]. Energy Storage Science and Technology, 2022, 11(2): 600-608.
[7]	Suhang YU, Wenyong GUO, Yuping TENG, Wenju SANG, Yang CAI, Chenyu TIAN. A review of the structures and control strategies for flywheel bearings [J]. Energy Storage Science and Technology, 2021, 10(5): 1631-1642.
[8]	Xingjian DAI, Dongxu HU, Zhilai ZHANG, Haisheng CHEN, Yangli ZHU. Analysis and application of high strength alloy steel flywheel structure and material [J]. Energy Storage Science and Technology, 2021, 10(5): 1667-1673.
[9]	Xing ZHANG, Peng RUAN, Liuli ZHANG, Gangling TIAN, Baohong ZHU. Performance test of flywheel energy storage device [J]. Energy Storage Science and Technology, 2021, 10(5): 1674-1678.
[10]	Dongxu HU, Xinran WANG, Wen LI, Xingjian DAI, Xing WANG, Hucan HOU, Haisheng CHEN, Zhitao ZUO. Vibration of double-cantilever shafting structure passing through critical speed [J]. Energy Storage Science and Technology, 2021, 10(5): 1536-1543.
[11]	Linxuan HE, Wenyan LI. Simulation of the primary frequency modulation process of thermal power units with the auxiliary of flywheel energy storage [J]. Energy Storage Science and Technology, 2021, 10(5): 1679-1686.
[12]	Hong LI, Jiangwei CHU, Shufa SUN, Honggang LI. Characteristics of vehicle-mounted electromagnetic coupling flywheel energy storage system [J]. Energy Storage Science and Technology, 2021, 10(5): 1687-1693.
[13]	Xing ZHANG, Peng RUAN, Liuli ZHANG, Juan LI, Gangling TIAN, Dongxu HU, Baohong ZHU. Application analysis of flywheel energy storage in thermal power frequency modulation in central China [J]. Energy Storage Science and Technology, 2021, 10(5): 1694-1700.
[14]	Chen LAN, Wenyan LI. Stress characteristics of two kinds of variable thickness hollow energy storage flywheels [J]. Energy Storage Science and Technology, 2021, 10(3): 1080-1087.
[15]	Baohong ZHU, Guangjun LI, Shusheng LI, Yadong CUI. Power compensation and energy saving application of oil well generator based on energy storage flywheel [J]. Energy Storage Science and Technology, 2021, 10(3): 1088-1094.