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Inertia issues due to increased use of modern wind turbines (WTs) have gained increased attention during the last years, especially in isolated power systems with limited frequency control capabilities. Therefore, different control strategies to allow inertial response from WTs have been proposed, either by considering deloaded operation or by using part of the kinetic energy stored in the blades...
In recent years wind power integration has substantially increased in southern states of Australia. At present South Australia has the highest wind generation capacity of any region across the country. This large capacity penetration would likely displace existing synchronous generation fleet. These wind generators have neither enough inertia response nor governor support to control major frequency...
The Grid Friendly™ Appliance (GFA) controller, developed at Pacific Northwest National Laboratory, was originally designed to autonomously switch off appliances by detecting under-frequency events. In this paper, the feasibility of using the GFA controller to provide primary frequency response is investigated. In particular, the impacts of an important design parameter, i.e., curtailing frequency...
Variable-speed wind generators (VSWGs) are being extensively deployed as the main wind power generation technology around the world. However, when the VSWGs are integrated to gas turbine based (e.g. combined-cycle gas turbines (CCGTs) and open-cycle gas turbines (OCGTs)) electricity networks, potentially threatening dynamic interactions could occur during frequency excursions. This is due to the fact...
High penetration of wind generation causes concerns regarding the frequency stability if wind plants do not provide inertial response. Extensive research has been conducted to investigate the design of controller to facilitate wind plants to provide synthetic inertia. However, the economic value of synthetic inertia provision from wind plants has not yet been understood. This paper develops a methodology...
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