Guidelines for required grid-supportive functions in grid-tied inverters with distributed energy resources
Guidelines for required grid-supportive functions in grid-tied inverters with distributed energy resources
复制标题
分布式能源并网逆变器所需的电网支持功能指南
DOI：
10.1049/iet-esi.2019.0022
复制
发表时间：
2019
影响因子：
2.4
通讯作者：
Yuko Hirase
中科院分区：
文献类型：
--
作者：
Masashi Nakajima;Q. Jin;Mitsuaki Kaneko;Tsunenobu Kimoto;Yuko Hirase
并网逆变器需要具备支持电网稳定的功能。所谓的“智能逆变器”也被证明可以在稳定状态下提供负载分配。同样，有助于瞬态电网稳定性的其他类型的先进逆变器最近也引起了人们的关注。将电池与逆变器相结合，不仅可以不受时间或季节限制地使用可再生能源（RE），而且由于其高响应性，还可以增加系统惯性和同步力。然而，制造商通常不会披露逆变器中这些电网支持功能的使用；因此，系统管理员必须统一规范和验证效果。尽管智能逆变器的要求正在制定，但具有瞬态贡献的先进逆变器的要求尚未制定。此外，无论逆变器控制方法如何，这些要求都必须确认瞬态支持功能。因此，这项工作提出了一套基于稳定/干扰理论来建立这些要求的指南。此外，通过模拟确认了可以通过例如模拟虚拟惯性力的控制方法来实现满足这些要求的逆变器控制。
Grid‐tied inverters have become required to equip the function that supports electrical grids stable. So‐called ‘smart inverters’ have also been shown to provide load distribution under steady state. Similarly, other types of advanced inverters that contribute to transient grid stability have recently attracted attention. Combining a battery with an inverter not only enables the use of renewable energy (RE) regardless of time or season but also increases the system inertial and synchronising forces due to its high responsiveness. However, the use of these grid‐supportive features in inverters is commonly not disclosed by manufacturers; thus, a system administrator must uniformly regulate and verify the effects. Although the requirements for smart inverters' are being established, those for advanced inverters with transient contributions have not yet been formulated. Furthermore, these requirements must confirm the transient‐supportive functions regardless of the inverter control method. Therefore, this work proposes a set of guidelines for establishing these requirements based on stabilisation/disturbance theory. Furthermore, it was confirmed by simulation that inverter control satisfying these requirements can be realised, for example, by a control method that simulates a virtual inertial force.