Abstract: |
At present, the problem of abandoning wind and PV power in “Three North” region of China is particularly significant,
and how to alleviate this problem has become the focus of universal attention. Calculation of renewable energy
accommodation capacity is the basis to solve the problem of abandoning wind and PV power. Main problems of
Chinese renewable energy accommodation is analyzed from power supply, power grid and load side aspects, and it
focuses on the effect of inter-provincial tie-line to renewable energy accommodation capacity. At present, the interprovincial
tie-line utilization level is limited, which affected renewable energy accommodation to a certain extent.
Based on the sequential production simulation model, a new kind of renewable energy accommodation capacity
model is put forward considering the utilization level of inter-provincial tie-line. According to different system stability
constraints and different electricity constraints of inter-provincial tie-line, 4 schemes are designed for comparative
analysis, and the evaluation model is used to calculate renewable energy accommodation capacity of “Three North”
region of China in 2020. Example analysis results verify validity of the model that releasing curve constraints, electricity
constraints and stability constraints in turn can significantly enhance renewable energy accommodation capacity
through effective use of inter-provincial tie-line transmission capacity. Research work in this paper can provide strong
support for the planning and scheduling control of power grid. |
Key words: Renewable energy accommodation capacity, Sequential production simulation, Inter-provincial tie-line,Stability constraints |
DOI:10.1186/s41601-019-0115-7 |
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