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Hawaii Electric Light operates an autonomous power system on the island of Hawaii with a diverse mix of generating resources. Although the system is small, with an annual peak in 2009 of less than 200 MW, the power system balancing and frequency control is provided through a conventional centralized Automatic Generation Control system. The mix of generation resources on the Hawaii Electric Light System...
A microgrid is a controllable component of the smart grid defined as a part of distribution network capable of supplying its own local load even in the case of disconnection from the upstream network. Microgrids incorporate large amount of renewable and non-renewable distributed generation (DG) that are connected to the system either directly or by power electronics (PE) interface. The diversity of...
Distributed generation in islanded power systems has unique characteristics when it comes to power system stability and control. Relatively low system inertia and the power system configuration of intertie connections between distributed generation facilities necessitate the implementation of power management control algorithms that provide both proactive and reactive stabilization techniques to ensure...
This paper examines stability performances of a micro-grid application under both small and large disturbances, including islanding mode of operation. The system modeled encompasses dynamics and control of the doubly-fed induction generator, wind turbine, synchronous generator, and constant-power load. Fluctuation of wind speed is modeled using Weibull distribution. Simulated test results reveal that...
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