[1]谢文浩,王建赜,纪延超. 提高多逆变器并网运行稳定性的控制方法[J].哈尔滨理工大学学报,2018,(01):70-74.[doi:10. 15938 /j. jhust. 2018. 01. 013]
 XIE Wen-hao,WANG Jian-ze,JI Yan-chao. Research on Control Strategy for a MultipleGrid-connected-inverter System[J].哈尔滨理工大学学报,2018,(01):70-74.[doi:10. 15938 /j. jhust. 2018. 01. 013]
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 提高多逆变器并网运行稳定性的控制方法()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2018年01期
页码:
70-74
栏目:
材料科学与工程
出版日期:
2018-02-25

文章信息/Info

Title:
 Research on Control Strategy for a Multiple
Grid-connected-inverter System
文章编号:
1007- 2683( 2018) 01- 0070- 05
作者:
 谢文浩 王建赜 纪延超
 ( 哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150001)
Author(s):
 XIE Wen-hao WANG Jian-ze JI Yan-chao
 ( School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China)
关键词:
 微电网 逆变器并联 下垂控制 虚拟同步发电机 稳定性
Keywords:
 microgrid inverter parallel droop control virtual synchronous generator stability
分类号:
TM464
DOI:
10. 15938 /j. jhust. 2018. 01. 013
文献标志码:
A
摘要:
 针对微电网中多逆变器并列运行时功率分配不当导致分布式电源并网困难,特别是功
率动态分配的情况下系统可靠性更加恶化的问题进行研究。首先建立了多机下垂控制模型,推导
下垂系数与分布式电源容量的匹配方程,并分析系统的静态稳定性。其次,提出了一种下垂控制与
虚拟同步发电机控技术相结合的功率控制策略。通过增大逆变器的惯性和阻尼系数,抑制了微电
网的频率波动,从而在输出功率静态稳定的同时,削弱了分布式电源并网产生的冲击,提高微电网
运行的稳定性。最后,通过Matlab /Simulink 仿真验证了所提控制策略的有效性。
Abstract:
 The power share among multiple grid-connected inverters in microgrids is investigated to strengthen
the system robust,especially when power flow varies frequently. Firstly,a model of droop control based multiple
grid-connected inverters is established to deduce proper droop coefficients and analyze statistic stabilities. Then,a
control strategy which combines with droop control and virtual synchronous generator is proposed to improve system
stability. The proposed control scheme is utilized to increase the inertia and damping for inverters to suppress the
fluctuation of frequency,which provides a perfect static stability and minimize shocks. Finally,simulation
experiments are conducted to verify the effectiveness and validity of the proposed strategy.

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更新日期/Last Update: 2018-05-05