PPC
With the rapid expansion of renewable energy sources, the stabilisation of frequency and voltage in high voltage and extra-high voltage grids has become a critical issue.
Transmission System Operators (TSOs) must:
- Ensure the quality and stability of the electricity supply at interconnection points
- Ensure the overall security of the National Transmission Grid
- Manage the performance of multiple generation plants
In Italy, new grid code requirements have been established for power generation facilities, with a particular focus on photovoltaic, wind and battery energy storage systems:
A.68 for photovoltaic generation
A.17 for wind generation
A.79 for battery energy storage.
TERNA's TSO requires all power plants with a capacity exceeding 6 MW to be equipped with a Control and Regulation System (Power Plant Controller) to manage active and reactive power at the Point of Connection (PdC) and to ensure that renewable energy plants contribute effectively to the stability of the National Transmission Grid (RTN).
Thytronic Power Plant Controller (ThyPPC) is the solution for managing the regulation of active and reactive power at the interconnection point of the renewable energy hub, while also providing the opportunity to participate in the Dispatching Services Market (MFD).
The Thytronic PPC solution:
- Measures electrical parameters at both the high-voltage delivery point (HV PoD) and the medium-voltage point (MV PoD) using an integrated power analyser
- Implements all necessary regulatory functions
- Provides the interface with the RTU for communication with the TSO’s control centres, enabling the transmission of status updates and measurements and the reception of commands and set points
- Transmit commands to the system components (inverters or dataloggers). to allocate the active and reactive power to be produced
- Can be integrated easily into the substation SCADA system thanks to the availability of TCP-IP servers with the most widely used protocols (Modbus, 104, Profinet, CAN, OPC).
- Provides the mandatory hardware interface with the UPDM for the implementation of the emergency service for reducing active output power
- Facilitates parameterization and monitoring through HMI.
- Supports all standard protocols for communicating with third-party devices
- Constantly updated to comply with the latest requirements A.17, A.68 and A.79 of the Grid Code
- Provides a Modbus TCP-IP server interface for connectivity to the assessment instruments employed by the Certification Bodies during the A.18 evaluation phase
