Voltage Control of Distribution Grids with Multi-Microgrids Using Reactive Power Management

作者：Wlodarczyk Piotr^*; Sumper Andreas; Cruz Miguel

来源：Advances in Electrical and Computer Engineering, 2015, 15(1): 83-88.

DOI：10.4316/AECE.2015.01012

• distributed generation
• multi-microgrids
• optimal power flow
• smart grids
• voltage control

Low-voltage Microgrids can be valuable sources of ancillary services for the Distribution System Operators (DSOs). The aim of this paper was to study if and how multi-microgrids can contribute to Voltage Control (VC) in medium-voltage distribution grids by means of reactive power generation and/or absorption. The hierarchical control strategy was proposed with the main focus on the tertiary control which was defined as optimal power flow problem. The interior-point algorithm was applied to optimise experimental benchmark grid with the presence of Distributed Energy Resources (DERs). Moreover, two primary objectives were formulated: active power losses and amount of reactive power used to reach the voltage profile. As a result the active power losses were minimised to the high extent achieving the savings around 22% during entire day.

• 出版日期2015