Definition and specification of tools, devices, and evaluation KPIs

The purpose of this document is to provide detailed specifications for the tools and devices needed to support the development and implementation of direct current (DC) systems. These specifications will serve as a guide for the activities in WP2 and WP3, focusing on feasibility, replicability, and the exploitation potential of the proposed DC solutions. The deliverable outlines the key objectives, requirements, and features of each DC tool and solution, with “tools” referring to software solutions and “devices” to hardware components used in the project. Chapter 2 presents the specifications for six core tools, each addressing the following critical functions for DC infrastructure design and operation: a DC solution design and sizing tool quantifying DC benefits and costs at a preliminary phase (SOL23) (Section 2.1), a protection plan methodology (SOL25) (Section 2.2), a simulation and control tool for system integration and validation (SOL 24) (Section 2.3), a control and protection integration tool dedicated to Medium Voltage DC (MVDC) infrastructure (SOL26) (Section 2.4), an energy management system tool (SOL21) (Section 2.5), a conditioning monitoring tool (SOL26) (Section 2.6). In Chapter 3, specifications for the following eighteen DC hardware and software solutions are detailed, focusing on their benefits and applications for DC infrastructures. These solutions address existing problems or needs and will apply to the project demonstrators: DC cables: a smart and sustainable Low Voltage DC (LVDC) cable for DC applications (SOL4) (Section 3.1). Micro solar DC system: a micro-DC/DC converter (SOL5) (Section 3.2). V2X stations: a bidirectional DC/DC converter for EV charging (SOL6) (Section 3.3). LVAC-LVDC Interlink converter: an AC/DC interlink converter with droop capabilities (SOL7) (Section 3.4). Static protection: a protection system dedicated to DC grids specificities (SOL8) (Section 3.5). Vertical power delivery: for an optimized electrical distribution in Data centers (SOL9) (Section 3.6). Semiconductor protection: a protection system dedicated to DC grids specificities (SOL10) (Section 3.7). Pre-charging units for DC installations (SOL11) (Section 3.8) DC measurement device (SOL12) (Section 3.9). Fast response control algorithms to enhance and tailor DC/DC converters’ support to the infrastructure (SOL13) (Section 3.10). DC/DC converter as a smart distribution power unit (SOL14) (Section 3.10.4). Multi-socket socket smart power distribution unit (SOL15) (Section 3.12). Plug & play infrastructure for DC-based offices (SOL16) (Section 3.13). Sharing voltage control to enhance DC infrastructure stability and resilience (SOL17) (Section 3.14). Passive thermosyphon cooling system for Data centers (SOL18) (Section 3.15). A scalable and rack-mounted battery energy storage system (SOL19) (Section 3.16). DC connectors (SOL20) (Section 3.17). Data center interfaces based on series stacking of servers for better efficiency (SOL22) (Section 3.18). The document also establishes Key Performance Indicators (KPIs) to measure the performance of these tools and solutions. These KPIs will be used during the demonstration phase in WP4. The deliverable forms the foundation for the following stages of the Shift2DC project, with its specifications guiding the development of the tools and solutions in WP2 and WP3. It marks a significant milestone in the project’s progress and sets the stage for future evaluations and implementations of DC systems.