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在直流变换器中引入虚拟直流电机控制可为直流系统提供额外的惯性和阻尼支撑。 但传统虚拟直流电机控制中控制参数的恒定使其缺少灵活性。 两参数自适应虚拟直流电机控制虽然在传统虚拟直流电机控制的基础上， 通过实现惯性、阻尼两参数的灵活变化， 提高了直流母线电压的稳定性， 但提升效果有限。 除惯性、阻尼以外的控制参数， 对直流母线电压的稳定性也有着很大影响。 针对该问题，本文以双有源全桥直流变换器为拓扑，分析了惯性、阻尼以及电枢电阻等参数对直流母线电压稳定性的影响机理， 在此基础上提出三参数自适应虚拟直流电机控制。 最后通过仿真与试验， 验证了三参数自适应虚拟直流电机控制在抑制直流母线电压波动、提高系统动态响应速度等方面的优越性。
Abstract：Adding the virtual DC motor control into DC converter can provide additional inertial and damping support for the DC system. But the constant control parameters in the traditional virtual DC motor control make it lack of flexibility. On the basis of traditional virtual DC motor control, the two-parameter adaptive virtual DC motor control can improve the stability of DC bus voltage by realizing the flexible change of inertia and damping parameters, but the improvement effect is limited. The control parameters other than inertia and damping also have great influence on the stability of DC bus voltage. To solve this problem, this paper takes the dual active full-bridge DC converter as topology, analyzes the influence mechanism of inertia, damping and armature resistance on the voltage stability of DC bus, and proposes the three-parameter adaptive virtual DC motor control. Finally, through simulation and experiment, the advantages of three- parameter adaptive virtual DC motor control in suppressing DC bus voltage fluctuation and improving system dynamic response speed are verified.
[1] 李伟锋,鲍志阳.直流微电网相关技术研究综述[J].电工材料, 2023(2):90-96. LI Weifeng, BAO Zhiyang. A review of research on DC microgrid related technologies[J]. Electrical Engineering Materials, 2023(2): 90-96.
[2] Y. Yan, H. Gui, H. Bai. Complete ZVS Analysis in Dual Active Bridge[J]. IEEE Transactions on Power Electronics, 2021,36(2): 1247-1252.
[3] LIAO Jianquan, ZHOU Niancheng, WANG Qianggang, et al. Definition and Correlation Analysis of Power Quality Index of DC Distribution Network[J]. Proceedings of the CSEE, 2018, 38(23): 6847-6860, 7119.
[4] 朱晓荣,蔡杰,王毅,等.风储直流微网虚拟惯性控制技术[J].中国电机工程学报,2016,36(1):49-58. ZHU Xiaorong, CAI Jie, WANG Yi, et al. Virtual inertia control of wind-battery-based DC micro-grid[J]. Proceedings of the CSEE, 2016, 36(1): 49-58.
[5] 伍文华,陈燕东,罗安,等.一种直流微网双向并网变换器虚拟性控制策略[J].中国电机工程学报,2017,37(2):360-371. WU Wenhua, CHEN Yandong, LUO An, et al. A virtual inertia control strategy for bidirectional grid- connected converters in DC micro- grids[J]. Proceedings of the CSEE, 2017, 37(2): 360-371.
[6] J. Li, B. Wen, H. Wang. Adaptive Virtual Inertia Control Strategy of VSG for Micro-Grid Based on Improved Bang-Bang Control Strategy[J]. IEEE Access, 2019(7): 39509-39514.
[7] SAMANTA S, MISHRA J, KRISHNA ROY B. Virtual DC machine: an inertia emulation and control technique for a bidirectional DC- DC converter in a DC microgrid[J]. IET Electric Power Applications, 2018, 12(6): 874-884.
[8] T. Shucheng, D. Ge, Z. Hui, et al. Virtual DC machine control strategy of energy storage converter in DC microgrid[C]// Canada Electric Power Conference. 2016 IEEE Electrical Power and Energy Conference (EPEC). Ottawa: IEEE, 2016: 1-5.
[9] L. Gang, M. Junjie, L. Yong, et al. A Virtual Inertia and Damping Control to Suppress Voltage Oscillation in Islanded DC Microgrid[J]. IEEE Transactions on Energy Conversion, 2021, 36(3): 1711-1721.
[10] 尹英龙,刘宝泉.DC/DC变换器虚拟直流电机控制稳定机理研究[J].陕西科技大学学报,2021,39(2):146-152. YIN Yinglong, LIU Baoquan. Research on stabilization mechanism of virtual DC motor control for DC/DC converter[J]. Journal of Shaanxi University of Science and Technology, 2021, 39(2): 146-152.
[11] 张纯江,暴云飞,孟宪慧,等.直流微网储能DC/DC变换器的自适应虚拟直流电机控制[J].电力系统保护与控制,2023,51(1): 12-20. ZHANG Chunjiang, BAO Yunfei, MENG Xianhui, et al. Adaptive virtual DC motor control for DC microgrid energy storage DC/DC converter[J]. Power System Protection and Control, 2023, 51(1): 12-20.
[12] 孟建辉,郭禹,王毅,等.双有源全桥DC-DC变换器的自适应虚拟直流电机控制方法[J].高电压技术,2020,46(5):1497-1507. MENG Jianhui, GUO Yu, WANG Yi, et al. Adaptive Virtual DC Motor Control Method for Dual Active Full-bridge DC-DC Converter[J]. High Voltage Engineering, 2020, 46(5): 1497- 1507.
[13] 黄雷.双有源全桥型DC-DC变换器建模及控制[J].天津职业技术师范大学学报,2019,29(4):17-20. HUANG Lei. Modeling and Control of Double- Active Full- Bridge DC- DC Converter[J]. Journal of Tianjin University of Technology and Education, 2019, 29(4): 17-20.
[14] H. Hu, M. Zhu, X. Li, et al. Virtual DC machine based islanding detection method in DC distribution system and stability enhancement[C]//Annual Conference of Industrial Electronics Society. IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society. Singapore: IEEE, 2020: 3277-3282.
[15] 王勉,唐芬,赵宇明,等.虚拟直流电机的参数自适应控制策略[J].电力系统自动化,2020,44(14):148-155. WANG Mian, TANG Fen, ZHAO Yuming, et al. Parameter Adaptive Control Strategy of Virtual DC Motor[J]. Power System Automation, 2020, 44(14): 148-155.
基本信息:
DOI：10.19929/j.cnki.nmgdljs.2024.0038
中图分类号:
引用信息:
[1]王洋1,赵晓敏1,刘克轩2等.三参数自适应虚拟直流电机控制研究[J].内蒙古电力技术,2024,42(03):33-41.DOI:10.19929/j.cnki.nmgdljs.2024.0038.
基金信息:
国家自然科学基金专项项目“可再生能源直流离网制氢系统电能传输变换与协同保护控制关键”（52241702）