Open AccessEvaluation of the peak-shaving capability of the receiving-end power system with multi-infeed UHV
Author(s) -
Huahua Wu,
Xiaobo Yin,
Binhai Zhu,
Shaofei Shen,
Xiaoming Zhou,
Libang Guo,
Yi Ding
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/467/1/012111
Subject(s) - peaking power plant , automotive engineering , renewable energy , photovoltaic system , power (physics) , electric power system , electrical engineering , reliability engineering , engineering , distributed generation , physics , quantum mechanics
Peak-shaving capability mainly refers to the capability of the power system to maintain the balance between the active output and load balance in real-time. Sufficient peak-shaving capability is one of the important conditions to ensure the security and stability of the power system. The access of multi-infeed ultra-high voltage will largely weaken the peak-shaving capability of the power system and thus increase its peak-shaving pressure. This paper first introduces the characteristics of renewable energy generation such as wind generation and photovoltaic generation since a large amount of renewable energy from the sending-end system through several UHV delivery often increases the peak-shaving pressure of the receiving-end power system. On this basis, it analyses the impact of multi-infeed UHV on peak-shaving of power system. Then, an evaluation method that uses equivalent peaking capacity to measure the peak-shaving capability of the UHV receiving-end power system with multi-infeed UHV is proposed. Finally, Zhejiang Power System is used as an example to evaluate its peak-shaving regulation capability in the typical years and the typical day using the proposed method.