Abstract
It is expected that the conventional power plants of today will soon be substituted by a complete inertialess system. Such power stations will possess storages for different generation speed together with power electronic converters. In this paper, a method is proposed to control the electrical power distribution by these new power plants. All the control principles existing today involving spinning reserve, primary control and secondary control depending on frequency are substituted by a comprehensive angle control of the nodal voltages in the transmission and distribution network. It is observed that whenever there is an excessive consumption or generation of active power, all the slack power plants react instantly by either increasing their production or recharging their storages, with the ones closest to the point of disturbance providing the greatest response. In this manner, the excessive power flow from the production to consumption centers is reduced significantly avoiding the heavy overloading of the transmission lines. The behavior of this new control strategy is clearly described in this paper, taking into account the protection of such slack power plants when their maximum output power capacity is reached.
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