SDI’s experience in the key enabling product for sustainability.
The Power Plant Controller eXPert PPC, based on the eXPert ecosystem, is a component for managing Active Power and Reactive Power resources in renewable energy power plants in compliance with the world’s major grid codes.
The control logics of Active Power and Reactive Power are executed independently, according to the capacity of the sub-parks. The flexibility and modularity of SDI’s eXPert Ecosystem allows the adoption of various multilevel control architectures, which can also be customized during the design phase.
The delivery of SDI’s eXPert PPC is achieved by adopting, in agreement with the customer, cybersecurity policies at the application and architecture levels that take into account the risk assessment, having as reference the regulations adopted in the country hosting the facility under supervsion and con-trol (such as ISO 27001 and the recently adopted Cyber Resilience Act in Europe, NIST in the United States and in various Latin American countries, as well as any other international and local frameworks and specifications in other areas of the world).
Insight
eXPert PPC allows high customization in terms of protocols used, sub-park types, DSO/TSO specifications in so many areas: communication with Plant and sub-park SCADA control systems, accurate electrical metering at the POI, set point adjustment and allocation, real-time data export to DSO/TSOs.
Delivered as a component that can be hosted on various physical and virtualized platforms, eXPert PPC takes advantage of the modularity and flexibility features of the eXPert Ecosystem. It allows the addition of I/O, both protocol and wired, and the implementation of additional logic to what is provided in the standard product. Can also be implemented with SCADA features such as advanced HMI, historization and presentation in automated reports (e.g., collection of control data for post-analysis).
Since 2018, eXPert PPC has been successfully implemented in various configurations in numerous projects in Europe, North America and South America, totaling more than 5 GW. A wide range of generating units from various manufacturers have already been interfaced, including Santerno, SIEL, SMA, HUAWEI, Power Electronics, NIDEC, Ingeteam, Fluence, Wartsila, Vestas, Nordex Acciona, Siemens Gamesa, and Goldwind.
SDI has achieved for Spain the Compliance Certification of eXPert PPC and its Simulation Model according to the NTS EU 2016/631 standards, a European framework adaptable by individual countries with specific additions. The certification is particularly relevant for island management, which is regulated by NTS P.O.12.2 SENP standards, and demonstrates SDI’s adaptation to Spanish regulations, a paradigm case in the European context.
General Features
Control Mode and set points can be sent from 3 different higher-level sources, plant SCADA, local HMI, remote Control Room (CR), depending on a logic switch.
Physical characteristics
• Control logics with a minimum time step of 10 ms.
• Control parameters stored on a flash driver, to maintain values after CPU restart.
• Inputs (from meters, external SCADA, sub-parks, remote CR) and outputs (to sub-parks and PPC slaves) exchanged via standard configurable data protocols, such as IEC-60870-5-101/104, IEC 61850, ModBus, OPC UA, DNP3, etc., with extended cybersecurity capabilities available.
• Automation logic with different levels of emergency lockout and bump-less mode switching.
• Manageable set points via configurable power ramps.
• Final set points for sub-parks apportioned and limited according to pre-defined modes to be established in the design phase.
Provision of grid stability service, which can be activated simultaneously
• Active Power Regulation
• Primary Frequency Response (PFR) regulation according to configurable droop curve
Provision of grid stability services to the grid, mutually exclusive:
• Reactive Power Regulation
• Power Factor Regulation
• Voltage Regulation
• Response to Voltage variations according to configurable droop curve
• Local HMI of eXPert PPC
• Plant SCADA
• Remote Control Room
• eXPert PPC Power Plant Controller for specific plant technology.
• eXPert Master and Slave PPC: Designed in a multi-level architecture, with one eXPert Master PPC coordinating several eXPert Slave PPCs, globally compliant with local network code and received Set Points.
• eXPert Blended PPC: With integration of third-party Slave PPCs.
Branch Office
Pisa (PI) Italy
Lungarno Guadalongo, 4
Tel. +39 050 500004
Bari (BA) Italy
Via Gaetano Devitofrancesco, 4
Tel. +39 02 484861
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