受端多端的混合直流系统输送风电的控制策略研究
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(国网冀北电力有限公司技能培训中心,河北 保定 071051)

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葛廷利(1979-),男,硕士,讲师,研究方向为高压直流输电和风力发电;E-mail:gtl153326@163.com
宁博扬(1988-),男,学士,培训师,研究方向为新能源并网;E-mail:nby839@163.com
陈金辉(1980-),男,硕士,讲师, 研究方向为基于ARM和DSP的新能源控制技术。E-mail:515246362@qq.com

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Research on control strategy of received multiterminal DC system transporting mixed by the wind
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(Skill Training Center, State Grid JIBEI Electric Power Company, Baoding 071051, China)

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    摘要:

    目前大规模风电场均采用风火打捆直流孤岛外送的输送方式,而对于没有风火打捆条件的风场,特别是海上风电场,采用风火打捆方式输送风电将会大大增加投资,甚至是不可行的。考虑到晶闸管器件在整流侧的优点以及在逆变侧容易发生换相失败故障,结合IGBT的全控特性,提出了受端多端的混合直流系统输送风电的控制策略。该策略整流侧采用传统直流器件,逆变侧采用VSC器件,根据两者之间的特性,给出了拓扑图和控制流程图,提出了主从控制方式。该策略既充分利用了整流侧传统器件的容量,也利用了VSC的可控特性,从而实现将波动的风电输送至负荷中心。某实际风电场的规模数据搭建了仿真模型,并对仿真结果进行分析。仿真结果验证所提策略的有效性。

    Abstract:

    For the current large-scale wind farm, wind & fire bundled DC silos are used for delivery of transportation methods, but for no wind, fire, wind farm baling conditions, especially offshore wind farms, using wind, fire, transport bundling approach will greatly increase investment in wind power, or even feasible. Considering the advantages of thyristor rectifier device side and the inverter side commutation failure-prone fault, combined with full-controlled IGBT characteristics, this paper proposes a control strategy of received multiterminal DC system transporting mixed by the wind. The strategy uses the conventional DC rectifier device, and the inverter side uses VSC device, according to the two characteristics, the paper gives the topology and control flow chart and proposes master-slave control strategy. This strategy not only makes full use of the traditional rectifier device capacity, but also adopts the controllable characteristics of VSC, so as to realize the fluctuation of wind power delivered to the load center. A simulation model is built by using the actual size of the data of a wind farm, and the simulation results are analyzed. Simulation results verify the validity of the strategy.

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葛廷利,宁博扬,陈金辉.受端多端的混合直流系统输送风电的控制策略研究[J].电力系统保护与控制,2016,44(24):191-195.[GE Tingli, NING Boyang, CHEN Jinhui. Research on control strategy of received multiterminal DC system transporting mixed by the wind[J]. Power System Protection and Control,2016,V44(24):191-195]

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  • 收稿日期:2015-12-31
  • 最后修改日期:2016-05-09
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  • 在线发布日期: 2016-12-21
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