重庆理工大学学报(自然科学版)
重慶理工大學學報(自然科學版)
중경리공대학학보(자연과학판)
JOURNAL OF CHONGQING INSTITUTE OF TECHNOLOGY
2014年
9期
108-111
,共4页
高水头冲击式水轮发电机%变速恒频%效率优化
高水頭遲擊式水輪髮電機%變速恆頻%效率優化
고수두충격식수륜발전궤%변속항빈%효솔우화
high water-head impulse turbine%variable speed constant frequency%efficiency optimization
分析了影响冲击式水轮机的效率的因素,针对基于双馈异步电机的高水头冲击式水轮机发电机组的多变量、强耦合特点,提出了交流励磁和液压调速的变参数、变结构的协调控制策略,完成了两者之间的最优动态匹配,既实现了最优转速跟踪,又实现了有功功率和无功功率的解耦控制,提高了并网稳定性。仿真研究结果表明所提出的控制策略是有效的。
分析瞭影響遲擊式水輪機的效率的因素,針對基于雙饋異步電機的高水頭遲擊式水輪機髮電機組的多變量、彊耦閤特點,提齣瞭交流勵磁和液壓調速的變參數、變結構的協調控製策略,完成瞭兩者之間的最優動態匹配,既實現瞭最優轉速跟蹤,又實現瞭有功功率和無功功率的解耦控製,提高瞭併網穩定性。倣真研究結果錶明所提齣的控製策略是有效的。
분석료영향충격식수륜궤적효솔적인소,침대기우쌍궤이보전궤적고수두충격식수륜궤발전궤조적다변량、강우합특점,제출료교류려자화액압조속적변삼수、변결구적협조공제책략,완성료량자지간적최우동태필배,기실현료최우전속근종,우실현료유공공솔화무공공솔적해우공제,제고료병망은정성。방진연구결과표명소제출적공제책략시유효적。
This paper analyzed the factor to influence the efficiency of high water-head impulse tur-bine.Aimed to the characteristics of multi-variables and strong coupling of the controlled device based on double feed induction generator,a coordinating control strategy with variable parameters and varia-ble structure for AC-excited and variable speed system is presented.The algorithm achieved the opti-mal dynamic matching between them,not only the optimal speed tracking,but also the decoupling control between active power and reactive power,and improving the stability for linking grid.The re-sults of simulation research showed that the strategy presented in the paper is effective.