Integrating Physical and Data-Driven System Frequency Response Modelling for Wind-PV-Thermal Power Systems

Abstract

G et al. (3 more authors) (2023) Integrating physical and datadriven system frequency response modelling for wind-PV-thermal power systems. IEEE Transactions on Power Systems.

Enhancing Renewable Energy Accommodation by Coupling Integration Optimization with Flexible Retrofitted Thermal Power Plant

“…The flexible output of TPU can be directly used to accommodate real-time RES fluctuations. In practical applications, the flexible output of TPU is typically adjusted through methods such as primary frequency control to track the real-time fluctuations of the RES and load [19]. The third line of Equation ( 14) specifies the output range for a starting TPU, while the fourth line distinguishes the operational state of the TPU, indicating it is either in an RPR or DPR state.…”

“…To sum up, previous studies [9][10][11] that conducted macroscopic evaluations on the impact of retrofitted TPUs for improving the accommodation capability of RES did not fully exploit their potential for detailed coordination at the time-step level. On the other hand, the optimal scheduling models for TPUs and RESs in previous studies [12][13][14][15][16][17][18][19][20][21][22][23] lack the ability to quantitatively measure the improvements in RES accommodation of different coordination methods with TPUs. To address the aforementioned gaps, this paper proposes an evaluation framework to assess the enhanced accommodation capabilities of RESs following the coupling integration optimization of retrofitted TPUs with WT and PV.…”

“…The CGS can more efficiently utilize the flexibility of TPUs to participate in DPR auxiliary services and accommodate RESs. Research in [19] demonstrates that the TPUs in CGS can achieve a real-time frequency response to handle the dynamic operation states of RESs. In [20], the coupling effect of TPUs and RESs was analyzed to demonstrate that CGS can achieve better coordination between power sources.…”