Medium voltage DC (MVDC) grids for an all-electric society

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Vydal: Neurčeno Autor: Tým odborníků IEC

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Serious work required update existing standards relevant MVDC technology and system integration, and to create new standards focused the unique characteristics and components MVDC technology and system operation. Shifting widespread MVDC grid operations will require major changes operational practices and the overcoming some remaining technical barriers. MVDC grids are currently more expensive than their counterparts although this is expected change MVDC technology becomes more widespread and research and development (R&D) reduces component costs. also investigates how the IEC and stakeholders can help realize these benefits. large body highly technical new standardization work required, spanning many IEC standardization efforts and resolving existing conflicts uncoordinated MVDC standards work. . The most critical areas focus for standardization effort are terms and general requirements, earthing, protection MVDC systems, converter stations, MVDC circuit breakers, and cable and equipment insulation requirements. § Material and resource optimization: MVDC requires much less copper and steel infrastructure than systems, improving sustainability. The market for power technology general is very large; some estimates suggest the global DC power distribution technology market will reach USD billion 2030. Studies of this growth have not yet differentiated MVDC from the broader “DC distribution” category, but MVDC applications are expected constitute major portion the demand. § Embark new standardization activities. MVDC grids differ noteworthy ways from HVDC and grids. Such work should include encouraging new R&D efforts reduce the technical challenges MVDC grid operations. This white paper provides overview how MVDC technology can ease the shift all- electric society and the great benefits can bring to power system operations. Power system operators and regulators should also work increase their general knowledge of MVDC technology, and its benefits and challenges.4 Executive summary § Improved energy efficiency: MVDC grids experience lower losses than grids. so, recommended that the IEC and stakeholders take the following steps: § Work accelerate the uptake MVDC grids technology. Rapid growth expected in all global regions, with slightly faster growth in Europe due commitments European governments the energy transition. While some existing infrastructure may reused build a MVDC grid, care needed, applying DC voltages may alter the ageing characteristics of that infrastructure. § Form technical committee focused on MVDC grids coordinate and harmonize the IEC’s MVDC standardization efforts