In a nutshell
- Control centres and network planning offices from network operators are working increasingly closely together across voltage levels
- The key point for future cooperation will be a greater coordination and information exchange
- Draft of the Application Rule implements three European Network Codes for Germany: Demand Connection (DCC), Emergency and Restoration (ER)
The energy transition is resulting in new generation plants connecting primarily at distribution level. One consequence is that network operators will have to cooperate more closely across voltage levels in order to continue operating the system safely. At the same time, the principle that each network operator is responsible for his network continues to apply. The transmission system operators also continue to bear system responsibility in their control area. In this area of conflict, extended rules are needed for cooperation between transmission and distribution system operators in network operation. The new requirements of the European network codes Demand Connection (DCC) and Emergency and Restoration (ER) also affect the cooperation between network operators and must be designed on a national basis.
The Network Technology/Network Operation Forum in VDE (VDE FNN) has developed the Application Rule "Technical Rules for the Operation and Planning of Electrical Networks - Part 1: Transmission and Distribution Network Interface" (VDE-AR-N 4141-1).
The interface between transmission and distribution network operators is becoming increasingly important. The focus is on:
- Medium-term network planning
- Planned shutdowns in daily network operation
- Mutual exchange of current network status information
- Clear prioritization with opposing control signals