Integration of Variable Speed Pumped Hydro Storage in Automatic Generation Control Systems

HYPERBOLE Symposium 2017 (HYdropower plants PERformance and flexiBle Operation towards Lean integration of new renewable Energies)

Fulgencio, N.^1 ; Moreira, C.^1 ; Silva, B.^1

INESC TEC, INESC Technology and Science, Porto, Portugal^1

关键词: Automatic generation control systems;    Electrical power system;    Frequency restorations;    Generation units;    Nominal frequency;    Power balancing;    Power interchanges;    Renewable energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/813/1/012005/pdf
DOI  :  10.1088/1742-6596/813/1/012005

来源: IOP

【 摘 要 】

Pumped storage power (PSP) plants are expected to be an important player in modern electrical power systems when dealing with increasing shares of new renewable energies (NRE) such as solar or wind power. The massive penetration of NRE and consequent replacement of conventional synchronous units will significantly affect the controllability of the system. In order to evaluate the capability of variable speed PSP plants participation in the frequency restoration reserve (FRR) provision, taking into account the expected performance in terms of improved ramp response capability, a comparison with conventional hydro units is presented. In order to address this issue, a three area test network was considered, as well as the corresponding automatic generation control (AGC) systems, being responsible for re-dispatching the generation units to re-establish power interchange between areas as well as the system nominal frequency. The main issue under analysis in this paper is related to the benefits of the fast response of variable speed PSP with respect to its capability of providing fast power balancing in a control area.