Clustering Power System Approach for Dynamic Smart Grid Operation on DSO-Level

Abstract

The increasing share of decentralized power generation, which is predominantly based on renewable energies, leads to higher requirements in power system operation. This means that new concepts with regard to the stability of power supply systems are unavoidable. In particular, the distribution networks in which most decentralized generators are connected must be actively controlled. They must, therefore, be equipped with new components, e.g. measurement systems and automatable actuators, in order to establish dynamic grid control functions. In addition, new concepts are needed to organize the control of the power supply system decentrally. A number of smart grid concepts have been developed and introduced. One concept is the Clustering Power System Approach (CPSA), which has been presented in previous papers.This paper focuses on dynamic smart grid operation in relation to the load-frequency control applied within the CPSA. Therefore, a hardware demonstrator is used to demonstrate the operation of the CPSA in a realistic test scenario. A number of power electronic prosumer emulators in combination with a smart grid regulator operate as interconnected power systems by representing individual load-frequency control areas in terms of technical control schemes. The results show that dynamic load-frequency control can be established at the distribution level.