基于改进ADRC的光伏逆变器故障穿越关键参数辨识研究

Research on Key Parameter Identification of Fault Crossing in Photovoltaic Power Stations Based on Improved ADRC

摘要: 目前，实际光伏逆变器均配备了高电压和低电压穿越特性控制，但是目前基于实际波形的高电压和低电压穿越中的关键参数辨识尚不完善，还处于起步阶段。为了解决上述关键问题，本文提出了考虑故障穿越特性的光伏逆变器辨识模型，包括基于ADRC的光伏逆变器实测数据预处理和考虑故障穿越特性的微分进化算法下的光伏逆变器辨识模型。仿真算例验证了本文所提模型和算法的正确性和有效性。

Abstract: Currently, actual photovoltaic power stations are equipped with high voltage and low voltage ride through characteristic control. However, the identification of key parameters in high voltage and low voltage ride through based on actual waveforms is still incomplete and in its early stages. To address the aforementioned key issues, this paper proposes a photovoltaic power plant identification model that considers fault crossing characteristics, including pre-processing of measured data for photovoltaic power plants based on ADRC and identification models for photovoltaic power plants based on differential evolution algorithms that consider fault crossing characteristics. The simulation examples have verified the correctness and effectiveness of the model and algorithm proposed in this paper.