期刊
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
卷 141, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijepes.2022.108177
关键词
Four-terminal interconnected topology; Distribution network expansion planning; Topological flexibility; Renewable energy accommodation
资金
- Natural Science Foundation of Chongqing, China [cstc2019jcyj-msxmX0092]
- Visiting Scholarship of State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University [2007DA105127]
- National 111 Project of China [BP0820005]
This paper proposes a new four-terminal interconnected topology (FTIT) and a bi-level DN expansion planning method to improve the accommodation capacity of renewable energy in DNs and reduce costs. Simulation results demonstrate that this method can flexibly adjust power flow distribution under different circumstances to promote the integration of renewable energy.
It is a huge challenge for traditional distribution networks (DNs) topologies to tackle the large-scale integration of renewable energy because of insufficient flexibility. This paper proposes a four-terminal interconnected topology (FTIT) for DNs, which has a variety of flexible operation modes and greatly increases the accommodation capacity of renewable energy. A bi-level DN expansion planning method is proposed, which can make full use of the topological flexibility of FTIT to balance the economy, reliability, environmental benefits and renewable energy accommodation level of expansion planning schemes on the premise of meeting the secure operation of DNs. A 69-bus real DN is used to test the proposed method. The simulation results show that the proposed FTIT and planning method can flexibly adjust power flow distribution under different renewable energy penetration to promote the accommodation of renewable energy and to reduce the annual comprehensive cost of the DN.
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