Modelling and experimentation of grid-forming inverters for standalone hybrid wind-battery systems
Modelling and experimentation of grid-forming inverters for standalone hybrid wind-battery systems
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独立混合风力电池系统并网逆变器的建模和实验
DOI：
10.1109/icrera.2015.7418453
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Mueller
中科院分区：
文献类型：
--
作者：
Leong Kit Gan;J. Shek;M. Mueller
本文提出了一种在实验室环境中模拟和开发独立的混合风力电池系统的方法，以降低实验成本，否则在现场将是昂贵的。使用现成的组件建立了一个完整的系统。使用这种方法可以加快开发时间。此外，人们认为，实验室中的全尺寸系统呈现出更可控的测试环境，其性能接近真实系统。从建模和实验两个角度对一个独立的混合风力发电系统进行了稳态和动态分析。以三台单相并网逆变器和一台定速风力发电机组作为案例研究平台。并网逆变器采用下垂控制方式，允许多个并网源并联运行。基于下垂控制的逆变器由于消除了分布式逆变器之间的相互通信链路而被认为是独立和自主的。此外，所采用的定速风力发电机组采用了坚固耐用、可靠性高、操作简单、维护费用低的鼠笼式感应发电机。这些选定组件的简单性和健壮性最大限度地减少了技术援助有限的偏远社区所面临的问题。结果表明，模拟结果、实验测量结果和现场测试结果具有很好的相关性。
This paper presents a methodology to model and develop a standalone hybrid wind-battery system in the laboratory environment to reduce experimentation cost, which would otherwise be costly in the field. A full-scale system is established using off-the-shelf components. The development time is expedited using this approach. In addition, it is believed that a full-scale system in the laboratory presents a more controlled test environment and its performance is close to the real system. The steady-state and dynamic analysis of a standalone hybrid wind-battery system are presented, from both a modelling and an experimental perspective. Three single-phase grid-forming inverters and a fixed speed wind turbine are used as a platform for case studies. The grid-forming inverters adopt droop control method which allows parallel operation of several grid-forming sources. Droop control-based inverters are known as independent and autonomous due to the elimination of intercommunication links among distributed converters. Moreover, the adopted fixed speed wind turbine employs a squirrel cage induction generator which is well known for its robustness, high reliability, simple operation and low maintenance. The simplicity and robustness of these selected components minimise the problems faced by the remote communities where technical assistance is limited. The results show a good correlation between the modelling, the experimental measurements, and the field tested results.