GridSweep仿真：测量配电馈线的次同步阻抗谱
GridSweep Simulation: Measuring Subsynchronous Impedance Spectra of Distribution Feeder
AI总结：
为评估配电馈线的次同步振荡风险，提出GridSweep新型测量仪器的仿真模型，通过主动探测与高精度记录，可准确测量馈线次同步阻抗谱，其峰值对应IBR引发的主导振荡模式。
摘要：
若某配电馈线上的逆变器型资源（IBR）部署量增加，其阻抗谱中的峰谷值可有效指示振荡风险，或更重要的是指示无振荡风险。GridSweep是一种用于测量配电馈线次同步阻抗谱的新型仪器，它结合了主动探测装置与记录装置：主动探测装置可在用户选定的1.0至40.0Hz GPS锁相频率下，对120伏1千瓦负载进行正弦调制；记录装置则以4kHz采样率采集超高精度的120伏连续波点（CPOW）同步波形。本文提出了GridSweep探测与测量能力的计算机仿真：构建了配备多个IBR的单相配电馈线的电磁暂态（EMT）仿真模型，加入GridSweep探测装置模型后，验证了该模型测量馈线次同步视在阻抗谱的能力，且谱中的峰值与IBR引发的系统主导振荡模式一致。
英文摘要：
Peaks and troughs in the subsynchronous impedance spectrum of a distribution feeder may be a useful indication of oscillation risk, or more importantly lack of oscillation risk, if inverter-based resource (IBR) deployments are increased on that feeder. GridSweep is a new instrument for measuring the subsynchronous impedance spectra of distribution feeders. It combines an active probing device that modulates a 120-volt 1-kW load sinusoidally at a user-selected GPS-phase locked frequency from 1.0 to 40.0 Hz, and with a recorder that takes ultra-high-precision continuous point-on-wave (CPOW) 120-volt synchrowaveforms at 4 kHz. This paper presents a computer simulation of GridSweep's probing and measurement capability. We construct an electromagnetic transient (EMT) simulation of a single-phase distribution feeder equipped with multiple inverter-based resources (IBRs). We include a model of the GridSweep probing device, then demonstrate the model's capability to measure the subsynchronous apparent impedance spectrum of the feeder. Peaks in that spectrum align with the system's dominant oscillation modes caused by IBRs.
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。
