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An Experimental Study on Dual P-f Droop Control of Photovoltaic Power Generation for Supporting Grid Frequency Regulation
摘要： The objective of this study is to develop an active power control of photovoltaic power generation (PV) system for supporting grid frequency regulation in two different forms, i.e. slow frequency control contributing to load – frequency control (LFC) and fast frequency control contributing to inertial response of synchronous generators. Two different active power – frequency droop characteristics are implemented simultaneously by using different frequency measurement methods. The performance test result of proposed control using an experimental setup shows that PV system equipped with proposed control can supply appropriate active power according to two different droop characteristics for slow frequency control and fast frequency control.
关键词： inverter,inertial response,Droop control,photovoltaic power generation,frequency control
更新于2025-09-12 10:27:22
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[IEEE 2019 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) - Gramado, Brazil (2019.9.15-2019.9.18)] 2019 IEEE PES Innovative Smart Grid Technologies Conference - Latin America (ISGT Latin America) - Generation Planning Model Including Frequency Stability Constrains to Mitigate Large-Scale Integration of Photovoltaic Plants
摘要： In the last two decades, electricity systems have undergone structural changes due to the incorporation of large- scale variable generation technologies (VGTs). Some of the VGT such as photovoltaics (PV) and wind power produces undesirable effects in the system. In power systems, synchronous generators are the primary sources of inertia. During power imbalance, the inertia of the generators prevents frequency stability issues. The VGTs do not naturally provide inertia, so when their participation in the production matrix is high; the system loses robustness since the inertia is decreased. This paper proposes a generator-planning model that includes the effects of lower inertia due to the increase of VGTs. The objective is to obtain a limited frequency deviation during contingencies. The proposed model adds restrictions related to the frequency variation to the capacity of the units that are in fault. The simulations show that to comply with the specified frequency deviations, the model must oversize the park in the order of 13 % in small meshed systems, while in real size systems the oversize is in the order of 1 %.
关键词： Frequency regulation,inertial response,renewable energy sources,power generation planning
更新于2025-09-11 14:15:04