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1.中国石油大学(华东)新能源学院,山东省青岛市 266580
2.中国石油川庆钻探工程有限公司长庆固井公司,陕西省西安市 710018
仉志华(1977—),男,通信作者,博士,副教授,主要研究方向:交直流配电网保护与控制、多能互补系统优化调控方法。E-mail:zzh-upc@163.com
赵一龙(1996—),男,硕士研究生,主要研究方向:交直流配电网保护与控制。E-mail:cnzyl1996@163.com
王琨(1995—),男,硕士研究生,主要研究方向:交直流混合配电网故障检测与保护。E-mail:17854222986@163.com
收稿日期:2019-12-28,
修回日期:2020-09-08,
网络出版日期:2020-11-08,
纸质出版日期:2020-12-25
移动端阅览
仉志华,赵一龙,王琨等.交直流混合点状网络运行模态及其统一控制方法[J].电力系统自动化,2020,44(24):119-125.
ZHANG Zhihua,ZHAO Yilong,WANG Kun,et al.Operation Mode and Unified Control Method for AC/DC Hybrid Spot Network[J].Automation of Electric Power Systems,2020,44(24):119-125.
仉志华,赵一龙,王琨等.交直流混合点状网络运行模态及其统一控制方法[J].电力系统自动化,2020,44(24):119-125. DOI: 10.7500/AEPS20191228001.
ZHANG Zhihua,ZHAO Yilong,WANG Kun,et al.Operation Mode and Unified Control Method for AC/DC Hybrid Spot Network[J].Automation of Electric Power Systems,2020,44(24):119-125. DOI: 10.7500/AEPS20191228001.
点状网络具有高供电可靠性且有利于分布式能源消纳的特点,但现有结构及其控制与保护方法限制了其进一步发展。文中基于点状网络多源并供优势与交直流混联思想的结合,提出了交直流混合点状网络结构,并给出了典型工作场景下的网络运行模态。针对不同运行模态下的能量动态平衡关系,提出了基于总体缺额功率的变流器统一控制策略,实现了不同运行模态及其切换过程中的变流器统一控制。最后,通过仿真分析验证了所提结构与统一控制策略的有效性。
The spot network has the characteristic of high power supply reliability. It is conductive to the consumption of distributed energy resource (DER). However
the existing structure and its methods for control and protection limit its further development. This paper proposes the structure of the AC/DC hybrid spot network based on the combination of the advantage of the multi-power supply of the spot network and the idea of the AC/DC hybrid. It gives the network operation mode in typical working scenarios. For the dynamic balance of energy in different operation modes
a unified control strategy based on overall power shortage is proposed. It can realize the unified control of the converter in different operation modes and their switching process. Finally
simulation analysis verifies the effectiveness of the proposed structure and unified control strategy.
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