波浪能装置中液压发电系统Boost变换机理及控制策略

发布时间：2018-01-08 18:03

本文关键词：波浪能装置中液压发电系统Boost变换机理及控制策略　出处：《电力系统自动化》2017年12期 　论文类型：期刊论文

【摘要】：根据液压发电系统特性可知,其工作转速由蓄能器压力和发电机负载决定,而蓄能器压力和发电机负载是实时变量,不加控制将无法实现液压发电系统始终工作在最佳转速曲线。特别是当液压发电系统整流后直接馈入海岛直流微电网时,转速由直流电网电压唯一确定。文中通过引入Boost变换电路,实现液压发电系统转速的实时控制。提出最高效率转换控制策略,实现液压发电系统始终工作在最佳转速曲线。推导了液压发电系统Boost变换机理,通过试验得到了最佳转速曲线,建立了液压发电系统经过交错并联Boost变换器馈入直流微电网的仿真模型。仿真结果表明,在Boost变换器控制下,液压发电系统始终工作在给定的最佳转速曲线,实现了液压发电系统最高效率转换控制策略。
[Abstract]:According to the characteristics of the hydraulic power system shows that the working speed by the pressure and the generator load decision accumulator, and the accumulator pressure generator and load is real-time variable, without control will not be able to achieve the hydraulic power system always work in the best speed curve. Especially when the hydraulic power system the rectified DC micro grid when fed directly to the island that speed is only determined by the DC voltage. In this paper, by introducing the Boost conversion circuit, real-time speed control of hydraulic power system is proposed. The highest conversion efficiency of hydraulic power control strategy, the system work at the optimum speed curve was deduced. Hydraulic power system Boost transformation mechanism, the optimum speed curve can be obtained by test, simulation model established by interleaved Boost converter fed DC micro hydraulic power system. The simulation results show that the Boost converter under the control of liquid The power generation system always works at the given optimal speed curve, and realizes the maximum efficiency conversion control strategy of the hydraulic power generation system.

【作者单位】：中国科学院广州能源研究所;中国科学院可再生能源重点实验室;广东省新能源和可再生能源研究开发与应用重点实验室;
【基金】：中国科学院战略性先导科技专项(A类)资助项目(XDA13040301) 广东省自然科学基金资助项目(2015A030313717)~~
【分类号】：P743.2;TM46
【正文快照】： 上网日期:2017-03-17。中国科学院战略性先导科技专项(A类)资助项目(XDA13040301);广东省自然科学基金资助项目(2015A030313717)。0引言波浪能装置(wave energy converter,WEC)的研制取得了国际社会的持续关注,已研制出点头鸭式波浪能装置[1]、Wave Pump筏式波浪能装置[2]、Pe

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