论文标题
在岛屿条件下，基于DOBC的频率和电压调节策略
DOBC-Based Frequency & Voltage Regulation Strategy for PV-Diesel Hybrid Microgrid During Islanding Conditions
论文作者
论文摘要
本文提出了一种基于干扰观察者的控制方法（DOBC）方法，用于在岛屿条件下基于太阳能光伏（PV） - 柴油发电机（DG）的混合微电网的频率和电压调节。 DOBC作为基于同步发电机的DG作为馈电控制，该控制能力处理实时功率不匹配并调节岛化下的微电网频率和电压。为了证实由于PV输出和负载的可变性而引起的实时不确定性，开发控制器的操作鲁棒性，该控制器已在恶劣的不确定性条件下进行了测试。提出的控制器已开发为MATLAB/SIMULINK模型，并在实时模拟器OPAL-RT上验证了结果。在沟通延迟和嘈杂的负载条件下，提出的控制方案的有效性进一步得到了验证。结果验证了控制器在调节低渗透微电网的系统频率和电压方面的动态性能。最后，提出的控制策略是在实验室规模的微电网设置上实施的，在该设置中，基于同步发生器的柴油发电机在最坏情况下不确定性情况下快速有效地调节系统频率。
This paper proposes a disturbance observer-based control (DOBC) method for frequency and voltage regulation of a solar photovoltaic (PV)-diesel generator(DG) based hybrid microgrid during islanding conditions. The DOBC is integrated as a feed-forward control to the synchronous generator based DG, which handles real-time power mismatches and regulates the microgrid frequency and voltage under islanding. To substantiate the operational robustness of the developed controller under real-time uncertainties arising due to variability in PV output and load, the controller has been tested under worstcase uncertainty conditions. The proposed controller has been developed as a MATLAB/Simulink model and the results are validated on the real-time simulator OPAL-RT. The effectiveness of the proposed control scheme has further been validated in the presence of communication delays and noisy load conditions. Results verify the dynamic performance of the controller in regulating the system frequency and voltage for low-inertia microgrids. Finally, the proposed control strategy has been implemented on laboratory scale microgrid setup in which synchronous generator based diesel generator regulates system frequency fast and efficiently under worst case uncertainty scenario.
