大电网同步电机DC/AC变换器的电网友好匹配控制
Grid-friendly Matching Control of Synchronous Machines by DC/AC Converters in Bulk Power Networks
摘要：
基于孤岛逆变器的微电网是异构DC能量资源的集合，例如，光伏阵列、燃料电池和能量存储设备，与AC配电网连接，并独立于大容量电力系统运行。能量转换通常由电压源逆变器中的电力电子设备管理。借鉴大容量电力系统中同步机的控制，最近采用了不同的控制方案以实现稳定的网络运行。绝大多数学术和工业界的努力在实时操作期间选择这些策略。从一个动态平均DC/AC转换器模型开始，我们通过分析和仿真来回顾不同的控制器。接下来，我们探索了一种新的替代控制DC/AC转换器在大容量电力系统中，通过匹配传统的同步机，重点是直流电路可以发挥的作用，在控制架构，通常被忽视的传统策略。与标准仿真方法相比，我们的控制器仅依赖于现成的直流侧测量，并考虑了自然的直流和交流存储元件。因此，我们的控制器通常更快，更不容易受到延迟和测量不准确的影响。我们还提供了有见地的解释建议的控制，各种即插即用的闭环性能，如稳态功率流分析，相对于直流和交流端口的无源性，稳定性证明以及高层次的控制架构，有助于提高控制器的性能和实现进一步的控制目标，我们说明在分析和仿真。
英文摘要：
An islanded inverter-based microgrid is a collection of heterogeneous DC energy resources, e.g., photovoltaic arrays, fuel cells, and energy-storage devices, interfaced to an AC distribution network and operated independently from the bulk power system. Energy conversion is typically managed by power electronics in voltage source inverters. Drawing from the control of synchronous machines in bulk power systems, different control schemes have been recently adopted in order to achieve a stable network operation. The vast majority of academic and industrial efforts opt for these strategies during real-time operation. Starting with a dynamical averaged DC/AC converter model, we review different controllers by presenting their main scope analytically and through simulations. Next, we explore a new alternative of controlling DC/AC converters in bulk power systems by matching traditional synchronous machines with emphasis on the role that DC-circuit can play in control architecture, usually neglected in conventional strategies. Compared to standard emulation methods, our controller relies solely on readily available DC-side measurements and takes into account the natural DC and AC storage elements. As a result, our controller is generally faster and less vulnerable to delays and measurement inaccuracies. We additionally provide insightful interpretations of the suggested control, various plug-and-play properties of the closed-loop, such as steady-state power flow analysis, passivity with respect to the DC and AC ports, stability proof as well as high-level control architectures contributing to enhancing the controller performance and attaining further control goals, which we illustrate in both analysis and simulation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
