含异步电动机的孤岛微电网暂态稳定性问题研究

doi:10.11985/2020.01.002

电气工程学报 ›› 2020, Vol. 15 ›› Issue (1): 16-22.doi: 10.11985/2020.01.002

所属专题：特邀专栏：微电网功率变换与稳定控制

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含异步电动机的孤岛微电网暂态稳定性问题研究

易相彤,赵峰,程慧婕,帅智康,沈征

湖南大学电气与信息工程学院长沙 410082

收稿日期:2020-01-03 出版日期:2020-03-25 发布日期:2020-05-13
作者简介:易相彤,女,1997年生,硕士研究生。主要研究方向为微电网暂态稳定性分析。E-mail：yixiangtong97@163.com|赵峰,男,1995年生,博士研究生。主要研究方向为微电网暂态稳定性分析。E-mail：Zhao_f@hnu.edu.cn|程慧婕,女,1994年生,博士研究生。主要研究方向为微电网暂态稳定性分析。E-mail：jessycheng@hnu.edu.cn|帅智康,男,1982年生,博士,博士研究生导师。主要研究方向为先进电能质量控制理论、微电网的稳定性分析及控制、电力电子技术及应用等。E-mail：szk@hnu.edu.cn|沈征,男,1964年生,博士,博士研究生导师。主要研究方向为电力电子器件和电力电子电路系统及其在再生能源电力转换系统等。E-mail：johnshen@ieee.org

Study on Transient Stability of Islanded Microgrid with Induction Motor Load

YI Xiangtong,ZHAO Feng,CHENG Huijie,SHUAI Zhikang,SHEN Zheng

College of Electrical and Information Engineering, Hunan University, Changsha 410082 China

Received:2020-01-03 Online:2020-03-25 Published:2020-05-13

摘要/Abstract

摘要：

微电网是一个复杂供电网络,其内部负荷类型多样,大量动态负荷(如异步电动机)的接入必然会对微电网暂态稳定性产生不可忽略的影响。以一简单孤岛微电网系统为例,针对异步电动机负荷对其暂态稳定性的影响进行研究。通过介绍微电网中微源与异步电动机负荷的模型,分析了异步电动机带不同机械负荷类型时的暂态失稳过程。在PSCAD/EMTDC中搭建了相应仿真模型,通过时域仿真得到了异步电动机的极限故障切除时间,且发现在故障持续时间相同时,与等值的恒阻抗负荷相比,带异步电动机负荷时系统已经暂态电压失稳。此外,还通过仿真分析了不同参数对极限故障切除时间,以及多异步电动机对微电网暂态稳定性的影响。

关键词: 孤岛微电网, 暂态稳定性, 异步电动机负荷, 极限故障切除时间

Abstract:

Microgrid is a complex power supply network with various load types. A large number of dynamic loads (such as induction motor) access will inevitably have a significant impact on the transient stability of microgrid. A simple islanded microgrid system is taken as an example to study the influence of induction motor load on its transient stability. Based on the introduction of the microgrid models, the transient instability process of induction motor with different mechanical load types is analyzed. The corresponding simulation model is built in PSCAD/EMTDC, and the critical clearing time of induction motor is obtained through time domain simulation. It is found that the system with induction motor load has already lost transient voltage stability compared with the equivalent constant impedance load in the same fault duration. Moreover, the influence of different parameters on critical clearing time and multiple induction motor on the transient stability of microgrid are analyzed by simulation.

Key words: Islanded microgrid, transient stability, induction motor load, critical clearing time

中图分类号:

TM712

易相彤,赵峰,程慧婕,帅智康,沈征. 含异步电动机的孤岛微电网暂态稳定性问题研究[J]. 电气工程学报, 2020, 15(1): 16-22.

YI Xiangtong,ZHAO Feng,CHENG Huijie,SHUAI Zhikang,SHEN Zheng. Study on Transient Stability of Islanded Microgrid with Induction Motor Load[J]. Journal of Electrical Engineering, 2020, 15(1): 16-22.

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参考文献 15

[1]	张兴, 朱德斌, 徐海珍 . 分布式发电中的虚拟同步发电机技术[J]. 电源学报, 2012(3):1-6,12.
	Zhang Xing, Zhu Debin, Xu Haizhen . Virtual synchronous generator technology in distributed generation[J]. Journal of Power Supply, 2012(3):1-6,12.
[2]	帅智康, 邹福筱, 涂春鸣 , 等. 微网暂态稳定性研究[J]. 电力系统自动化, 2015,39(16):151-159.
	Shuai Zhikang, Zou Fuxiao, Tu Chunming , et al. Study on transient stability of microgrid[J]. Power System Automation, 2015,39(16):151-159.
[3]	杨新法, 苏剑, 吕志鹏 , 等. 微电网技术综述[J]. 中国电机工程学报, 2014,34(1):57-70. doi: 10.13334/j.0258-8013.pcsee.2014.01.007
	Yang Xinfa, Su Jian, Lü Zhipeng , et al. Summary of microgrid technology[J]. Proceedings of the CSEE, 2014,34(1):57-70. doi: 10.13334/j.0258-8013.pcsee.2014.01.007
[4]	Zhong Qingchang, Weiss G . Synchronverters:Inverters that mimic synchronous generators[J]. IEEE Transactions on Industrial Electronics, 2011,58(4):1259-1267. doi: 10.1109/TIE.2010.2048839
[5]	吕志鹏, 盛万兴, 钟庆昌 , 等. 虚拟同步发电机及其在微电网中的应用[J]. 中国电机工程学报, 2014,34(16):2591-2603. doi: 10.13334/j.0258-8013.pcsee.2014.16.009
	Lü Zhipeng, Sheng Wanxing, Zhong Qingchang , et al. Virtual synchronous generator and its application in microgrid[J]. Proceedings of the CSEE, 2014,34(16):2591-2603. doi: 10.13334/j.0258-8013.pcsee.2014.16.009
[6]	赵卓立, 杨苹, 许志荣 , 等. 多源多变换微电网大扰动暂态稳定性研究综述[J]. 电网技术, 2017,41(7):2195-2204.
	Zhao Zhuoli, Yang Ping, Xu Zhirong , et al. Review on large-disturbance transient stability research of microgrid with multiple energy resources and multiple conversions[J]. Power System Technology, 2017,41(7):2195-2204.
[7]	Hiskens I A, Milanovic J V . Load modelling in studies of power system damping[J]. IEEE Transactions on Power Systems, 1995,10(4):1781-1788. doi: 10.3934/mbe.2019314 pmid: 31698563
[8]	Kasem Alaboudy A H, Zeineldin H H, Kirtley J L . Microgrid stability characterization subsequent to fault-triggered islanding incidents[J]. IEEE Transactions on Power Delivery, 27(2):658-669. doi: 10.1109/TPWRD.2012.2183150
[9]	Shuai Z, Peng Y, Liu X , et al. Parameter stability region analysis of islanded microgrid based on bifurcation theory[J]. IEEE Transactions on Smart Grid, 2019,10(6):6580-6591. doi: 10.1109/TSG.5165411
[10]	林莉, 朱丽云, 张向伍 , 等. 含多感应电动机负荷的微网电压稳定性仿真分析[J]. 电力系统自动化, 2017,41(8):78-83.
	Lin Li, Zhu Liyun, Zhang Xiangwu , et al. Simulation analysis of voltage stability of microgrid with multiple induction motor loads[J]. Power System Automation, 2017,41(8):78-83.
[11]	李润泽, 徐涛 . 计及感应电动机参数的微电网暂态电压稳定性分析[J]. 电气技术, 2018,19(1):24-28.
	Li Runze, Xu Tao . Transient voltage stability analysis of microgrid considering induction motor parameters[J]. Electrical Engineering, 2018,19(1):24-28.
[12]	付家兴 . 计及多感应电动机的微电网暂态电压稳定仿真[J]. 电工技术, 2018(20):65-67.
	Fu Jiaxing . Simulation of transient voltage stability in microgrid with multiple induction motors[J]. Electric Engineering, 2018(20):65-67.
[13]	Cooper A R, Morrow D J, Chambers K D R . Development of a diesel generating set model for large voltage and frequency transients[C]// IEEE PES General Meeting,Providence,RI, 2010: 1-7.
[14]	王庆红, 张丽, 周双喜 . 电压稳定分析中异步电动机动态负荷建模探讨[J]. 中国电力, 2004(4):35-40.
	Wang Qinghong, Zhang Li, Zhou Shuangxi . Discussion on dynamic load modeling of asynchronous motor in voltage stability analysis[J]. China Electric Power, 2004(4):35-40.
[15]	何仰赞, 温增银 . 电力系统分析[M]. 武汉: 华中科技大学出版社, 2010.

参数	数值
参考有功功率P₀₁/kW	40
参考有功功率P₀₂/kW	20
转动惯量J₁/s	15.022
转动惯量J₂/s	2.002
有功下垂系数K_p₁	20
有功下垂系数K_p₂	24
阻尼系数D_p₁	0.01
阻尼系数D_p₂	0.01
延时时间常数τ	0.03
线路阻抗Z_line₁/Ω	0.1+0.16j
线路阻抗Z_line₂/Ω	0.1+0.31j
负荷阻抗Z_load/Ω	4.05+1.26j
电动机视在容量S_IM/kVA	20
电动机惯性时间常数H_m/s	0.2

机械负荷类型T_L/p.u.	惯性时间常数H_m/s	极限故障切除时间/s
0.8	0.1	<0.10
	0.2	0.16
	0.3	0.25
	0.4	0.35

机械负荷类型T_L/p.u.	转子外接电阻R_r/Ω	极限故障切除时间/s
0.8	0.34	0.10
	0.41	0.13
	0.50	0.16

不同容量组合情况	极限故障切除时间/s
1台16 kW的IM	0.16
2台8 kW的IM	0.28
3台5.3 kW的IM	0.45

含异步电动机的孤岛微电网暂态稳定性问题研究

Study on Transient Stability of Islanded Microgrid with Induction Motor Load

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