Table of Contents

 1     Scope          
 2     References
 3     Definitions
        3.1     Terms defined elsewhere       
        3.2     Terms defined in this Recommendation           
 4     Abbreviations and acronyms             
 5     Conventions            
 6     Architecture of up to 400 VDC power with REN coupling       
        6.1     Overview       
        6.2     Local and distant renewable energy coupling architecture to sites with up to 400 VDC power systems    
 7     Conditions required to maintain specified performance for an up to 400 VDC power system    
        7.1     General introduction
        7.2     Electrical stability        
        7.3     Reliability, maintainability and safety
        7.4     Proper battery charge and management         
 8     Control-monitoring and metering   
 9     Assessment of performances improvement of up to 400 VDC systems with REN power          
        9.1     Performance, reliability and efficiency assessment      
        9.2     Operational KPI of REN coupling to sites with up to 400 VDC systems  
Annex A – Different possible coupling architectures of REN energy to AC and DC site powering systems or to a nano or micro grid    
        A.1     Interconnection of REN on a single AC site input           
        A.2     Interconnection of REN on single and multiple DC distribution system
        A.3     Interconnection of REN on single or multiple AC distribution frame     
        A.4     Hybrid interconnection of REN on AC and DC distribution         
        A.5     Interconnection of REN to a DC nano or micro grid      
Appendix I – Details on coupling solution of REN generator to an up to 400 VDC system    
Appendix II – Control/Monitoring considerations for renewable energy system connexion to AC and DC points in DC systems    
Appendix III – General consideration for sizing and power coupling of REN  system to up to 400 VDC systems    
      III.1     General conditions impacting on the REN sizing and power coupling     
      III.2     Monosource system  
      III.3     Multisources management and balance between power sources and backup batteries    
Bibliography