The high proportion of renewable energy access and randomness of load side has resulted in several operational challenges for conventional power systems. Firstly, this paper proposes the concept of a flexi.
What is a flexible energy storage power station (fesps)?
Firstly, this paper proposes the concept of a flexible energy storage power station (FESPS) on the basis of an energy-sharing concept, which offers the dual functions of power flow regulation and energy storage. Moreover, the real-time application scenarios, operation, and implementation process for the FESPS have been analyzed herein.
The energy storage output is utilized to compensate for the insufficient frequency regulation capacity of thermal power, thereby reducing their wear. The power of energy storage is constrained by the SOC to minimize the number of energy storage cycles and improve its overall life. 3. Loss model of ESCTPFR
Why should power grid enterprises use multi-point centralized energy storage stations?
For power grid enterprises, multi-point centralized medium and large-scale energy storage stations will be conducive to the reinforcement of the distribution network and the sustainable consumption of renewable energy.
What time does the energy storage power station operate?
During the three time periods of 03:00–08:00, 15:00–17:00, and 21:00–24:00, the loads are supplied by the renewable energy, and the excess renewable energy is stored in the FESPS or/and transferred to the other buses. Table 1. Energy storage power station.
Under the influence of SOC planning, the energy storage stations in Strategy 5 follow the SOC recovery sequence of “higher SOC leads to higher discharge power, while lower SOC leads to higher charging power.” As a result, the SOC of the ESS tends to shift towards 0.5.
How is energy stored in the fesps?
During the period 10:00–17:00, the load is supplied by the renewable energy, and the excess renewable energy is stored in the FESPS and subsequently transferred to the other buses. During the period 20:00–22:00, the load is separately supplied by the energy storage.