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Synthetic Inertia and Primary Frequency Regulation Services by Domestic Thermal Loads

Publications - Paper

Synthetic Inertia and Primary Frequency Regulation Services by Domestic Thermal Loads

The memoir proposes a control approach to enable controlled household thermostatic loads, such as refrigerators and electric water heaters, to provide synthetic inertia services and primary frequency regulation.

The basic idea is to modify the logic of the standard thermostat as a function of local measurements of grid frequency, using a set of thresholds generated with an appropriate probability distribution. In this way, the aggregate load response to frequency changes can be proportional to the rate of change of frequency (RoCoF), providing synthetic inertia and/or primary regulation. A combined solution of the two services is also proposed. The three control schemes are tested using a scenario of the Sardinian power system.

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