控制理论(社会学)
微电网
模型预测控制
惯性
仿真
内环
电压降
带宽(计算)
计算机科学
交流电源
频域
频率响应
工程类
传递函数
电流回路
控制工程
电压
控制器(灌溉)
电压调节器
控制(管理)
农学
生物
计算机网络
计算机视觉
经济
人工智能
经济增长
物理
电气工程
经典力学
作者
Changming Zheng,Tomislav Dragičević,Frede Blaabjerg
标识
DOI:10.1109/tie.2020.3007105
摘要
Conventional primary control employs outer-loop droop and inner-loop cascaded linear control to realize local voltage regulation and power-sharing of an islanded ac microgrid. However, it has a complex structure, limited dynamic response, and a rapid rate of change of frequency when disturbances occur. This article resolves these issues by proposing a model predictive control-based virtual synchronous generator (VSG-MPC). An improved finite-set MPC is first proposed for the inner loop, achieving simplified control structure, faster dynamic response, enhanced bandwidth and stability, as well as improved current limitation. In the outer control loop, a simplified VSG without a phase-locked loop is employed to realize active power-sharing and inertia emulation. The merits above are verified by a description function of MPC and the frequency-domain response of the overall VSG. Simulation and experimental results verify the feasibility of the proposed method.
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