海洋采油平台直流配电网瞬时负载的适应性评估
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TM74

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山东省自然科学基金资助项目(ZR2019MEE078)

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    摘要:

    在海洋石油工程中,电动机是主要的电气负载,其起动过程可能会产生瞬时冲击,影响直流配电网的系统性能。文中基于降阶解析的思想,对此特殊场景下瞬时负载的影响开展研究。首先在一定条件下简化系统动态微分代数方程,推导直流母线电压的近似解析表达式;然后研究瞬时有功负载对海洋采油平台直流母线电压的影响;最后在PSCAD/EMTDC中搭建四端柔性直流配电网模型并设置不同的瞬时负载进行仿真,分析不同瞬时负载情况下的直流母线电压,验证文中所提解析表达式的正确性。结果证明,文中的解析表达式可以有效反映海洋采油平台直流配电网对瞬时负载的适应性。

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Adaptability evaluation of instantaneous load on DC distribution network in offshore oil platform
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Shandong Provincal Natural Science Foundation of China(ZR2019MEE078) Science program of China National Offshore Oil Corporation Research Institute(CCL2019RCPS0268RSN)

    Abstract:

    Motors comprise the major electricity loads in offshore oil projects and motor starting may lead to instantaneous impacts. The impacts probably deteriorates system performance if DC distribution networks are employed. Based on the idea of analytical expression,the impacts of such loads are analyzed. Firstly,by simplifying the differential algebraic equations of the system,the analytical expression of DC bus voltage is derived. Then the impacts of instantaneous active load on DC distribution network in offshore oil platform are researched. Finally,a four terminal DC distribution network model based on the PSCAD/EMTDC platform is built and different instantaneous loads are set for simulation. The DC bus voltage under different instantaneous loads is analyzed. The correctness of the analytical expression is verified. The results show that the analytical expression effectively reflects the adaptability of instantaneous load on DC distribution network in offshore oil platform.

引用本文

李昌明,闫红华.海洋采油平台直流配电网瞬时负载的适应性评估[J].电力工程技术,2021,40(5):136-143

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  • 收稿日期:2021-03-25
  • 最后修改日期:2021-06-09
  • 录用日期:2021-01-11
  • 在线发布日期: 2021-09-30
  • 出版日期: 2021-09-28