Active network management and microgrids Sami Repo Mervi Suni Teemu Leppälä Kimmo Kauhaniemi TUT NSN ABB UWASA Introduction Active network management is a concept to manage network by utilizing active resources Microgrid is another concept focusing on the management of selected network area Results so far (2FP) PSCAD Energy centre microgrid model Active participation of LV microgrid to Smart Grid voltage control • voltage level can be affected in MV as well Difference is the ability of microgrid to self- support itself by utilizing internal resources Results so far (2FP) Total site management project • voltage level can be affected in MV as well as in LV network by active and reactive power feeding or absorbing of a battery based energy storage Centralized management server hosting management applications and related data Green Energy Controller for Plans for the 3rd Funding Period • DMS to support DER and microgrids (modelling, DER applications for Mobile Operator Management Server Site SGSN GGSN Firewal l Internet IT Shelf (Linux PC) Grid Windmil l Solar Generator(s) Batter y bank Fuel Radio Network (GPRS) O&M agent with adaptor applications and related data data collection DER in DMS • Analysis of island loads • Model for DER technology adoption restoration, adaptive size of island) • DER related value chains, benefits and business opportunities for a DNO • Further developing the microgrid concept considering the technical and business aspect arising from the participation to the active network management of smart grids panel s Air - Conditioner O&M agent with adaptor communicates with centralized management server Coordinated voltage control (CVC) active network management of smart grids • Centralized CVC based on optimization • Benefits of CVC • Island operation controls (automatic load shedding and virtual inertia) Outcome of the workshop CVC provides a cost effective option to connect DG into weak 100000 150000 200000 250000 300000 350000 400000 Cost of losses + Use of grid fee - Distribution charge of DG Lost revenue due to curtailment DG lost income DNO costs Defined use cases • Microgrid management on different states • Microgrid voltage and frequency support • Microgrid protection when in island mode Outcome of the workshop DG into weak MV network 0 50000 100000 Cos = 1.0 Cos = 0.92ind Vref = 1.02 CVC • Microgrid protection when in island mode • UPS device summer cottage • Using DG in power restoration • Voltage control in distribution network (Local, centralized and decentralized) SGEM (Un)Conference 16.-17.11.2011