首页> 外国专利> METHOD FOR DIRECT CONTROL OF ACTIVE AND REACTIVE POWER FROM THE ROTOR SIDE FOR A GRID-CONNECTED DOUBLY-FED SLIP-RING INDUCTION MACHINE WITHOUT POSITION ENCODER

METHOD FOR DIRECT CONTROL OF ACTIVE AND REACTIVE POWER FROM THE ROTOR SIDE FOR A GRID-CONNECTED DOUBLY-FED SLIP-RING INDUCTION MACHINE WITHOUT POSITION ENCODER

机译:无位置编码器的并网双馈滑环感应电机转子侧有功和无功直接控制方法

摘要

A method of direct power control for doubly-fed wound rotor induction machine is described. The stator active and reactive powers are controlled within hysteresis bands by adopting a switching algorithm on the rotor side. The control algorithm uses only stator quantities for active and reactive power measurement and is inherently position sensorless. It is computational/y simple and does not involve any machine parameter. A novel method for sector identification of the rotor flux based on the direction of change of reactive power is developed. The algorithm can start 'on-the-fly' and runs stably even at zero rotor frequency. Fast and decoupled dynamic response of the stator active and reactive powers is achieved. The direct power control method can be used for sensor/ess control of wound rotor induction machines in high power drives and VSCF applications like wind power generation.
机译:描述了一种用于双馈绕线转子感应电机的直接功率控制的方法。通过在转子侧采用切换算法,可将定子有功功率和无功功率控制在磁滞范围内。控制算法仅使用定子量进行有功和无功功率测量,并且固有地无位置传感器。它计算简单,不涉及任何机器参数。提出了一种基于无功变化方向识别转子磁链的新方法。该算法可以“即时”启动,即使在零转子频率下也可以稳定运行。实现了定子有功功率和无功功率的快速和解耦的动态响应。直接功率控制方法可用于大功率驱动器和风力发电等VSCF应用中的绕线转子感应电机的传感器/ ESS控制。

著录项

  • 公开/公告号IN212361B

    专利类型

  • 公开/公告日2008-02-15

    原文格式PDF

  • 申请/专利权人

    申请/专利号IN797/MAS/1999

  • 发明设计人 V.T. RANGANATHAN;DATTA RAJIB;

    申请日1999-08-06

  • 分类号H02J3/18;

  • 国家 IN

  • 入库时间 2022-08-21 20:07:19

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