Towards Grid Code Compliance of Hybrid Power Plants with Power Management Systems
01 HYB24-58
Presented by: Jon Martinez-Rico
Hybrid power plants (HyPPs) combining renewable generation and storage are able to cope with many of the challenges related to the renewable energies-based future electricity generation. Among the different advantages they provide, they have more flexibility to supply ancillary services or conduct arbitrage strategies, they can provide a more constant power output, and improve the grid utilization factor. However, all these advantages depend on coordinating and scheduling optimally the setpoints inside the HyPP.
In this paper, the development of a power management system (PMS) is presented to coordinate the operation of a HyPP consisting of a wind power plant, solar PV power plant and a battery energy storage system (BESS). The design of this PMS is oriented toward the compliance of the Spanish Grid Code, which imposes several technical requirements to allow the connection of the HyPP to the grid.
The PMS receives as inputs the setpoints from the HyPP energy management system (EMS) and then, following a hierarchical control architecture, dispatches these setpoints between the three subplants (wind, PV and BESS). This is done based on different modules inside the PMS, which are described in detail: the conversion from energy setpoints to power setpoints, the FCR and aFRR control modules, and the dispatcher to generate individual active and reactive power setpoints for each subplant.
The validation of the PMS is first conducted with offline simulations and then, following a hardware in the loop (HIL) approach. Here, the PMS is implemented in an industrial PLC and communicates with an Opal-RT digital simulator running a model of the HyPP in real-time. The presented results focus on the importance of tuning some parameters to comply with the grid code requirements.
In this paper, the development of a power management system (PMS) is presented to coordinate the operation of a HyPP consisting of a wind power plant, solar PV power plant and a battery energy storage system (BESS). The design of this PMS is oriented toward the compliance of the Spanish Grid Code, which imposes several technical requirements to allow the connection of the HyPP to the grid.
The PMS receives as inputs the setpoints from the HyPP energy management system (EMS) and then, following a hierarchical control architecture, dispatches these setpoints between the three subplants (wind, PV and BESS). This is done based on different modules inside the PMS, which are described in detail: the conversion from energy setpoints to power setpoints, the FCR and aFRR control modules, and the dispatcher to generate individual active and reactive power setpoints for each subplant.
The validation of the PMS is first conducted with offline simulations and then, following a hardware in the loop (HIL) approach. Here, the PMS is implemented in an industrial PLC and communicates with an Opal-RT digital simulator running a model of the HyPP in real-time. The presented results focus on the importance of tuning some parameters to comply with the grid code requirements.