电能路由器接入电力电子化配电网稳定性初步分析Stability Analysis of Power Routers Connected to Power Electronic Distribution Grid
段青;盛万兴;李振;赵彩虹;王建华;
摘要(Abstract):
针对电能路由器接入目前传统配电网及电力电子化配电网潜在的稳定性问题,在电能路由器主电路拓扑的基础上,基于阻抗匹配理论,详尽推导了电能路由器在dq坐标下的小信号阻抗模型,并通过注入小信号电压扰动信号测量实际阻抗,验证所建立的解析模型的准确性。同时结合广义奈奎斯特稳定性判据以及阻抗模型,分别给出了电能路由器与电力电子配电网并网系统的稳定及不稳定情况下的时-频域仿真验证。在实际物理试验中,分别将电能路由器接入传统配电网及电力电子化配电网,同样验证了模型的正确性及可行性。
关键词(KeyWords): 电能路由器;稳定性;输入阻抗;输出阻抗
基金项目(Foundation): 国家留学基金(201709110021);; 国家电网公司基础性前瞻性科技项目资助(交直流无缝混合灵活配电系统基础理论与虚拟现实仿真方法研究)~~
作者(Author): 段青;盛万兴;李振;赵彩虹;王建华;
Email:
DOI: 10.13335/j.1000-3673.pst.2018.0753
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