Principles behind the Agile Manifesto


We follow these principles:

  1. Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.
  2. Welcome changing requirements, even late in development. Agile processes harness change for
    the customer's competitive advantage.
  3. Deliver working software frequently, from a couple of weeks to a couple of months, with a
    preference to the shorter timescale.
  4. Business people and developers must work together daily throughout the project.
  5. Build projects around motivated individuals.
  6. Give them the environment and support they need, and trust them to get the job done.
  7. The most efficient and effective method of conveying information to and within a development
    team is face-to-face conversation.
  8. Working software is the primary measure of progress.
  9. Agile processes promote sustainable development.
    The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
  10. Continuous attention to technical excellence and good design enhances agility.
  11. Simplicity--the art of maximizing the amount of work not done--is essential.
  12. The best architectures, requirements, and designs emerge from self-organizing teams.
  13. At regular intervals, the team reflects on how to become more effective, then tunes and adjusts
    its behavior accordingly.


内容概要:本文详细探讨了双馈风力发电机(DFIG)在Simulink环境下的建模方法及其在不同风速条件下的电流与电压波形特征。首先介绍了DFIG的基本原理,即定子直接接入电网,转子通过双向变流器连接电网的特点。接着阐述了Simulink模型的具体搭建步骤,包括风力机模型、传动系统模型、DFIG本体模型和变流器模型的建立。文中强调了变流器控制算法的重要性,特别是在应对风速变化时,通过实时调整转子侧的电压和电流,确保电流和电压波形的良好特性。此外,文章还讨论了模型中的关键技术和挑战,如转子电流环控制策略、低电压穿越性能、直流母线电压脉动等问题,并提供了具体的解决方案和技术细节。最终,通过对故障工况的仿真测试,验证了所建模型的有效性和优越性。 适用人群:从事风力发电研究的技术人员、高校相关专业师生、对电力电子控制系统感兴趣的工程技术人员。 使用场景及目标:适用于希望深入了解DFIG工作原理、掌握Simulink建模技能的研究人员;旨在帮助读者理解DFIG在不同风速条件下的动态响应机制,为优化风力发电系统的控制策略提供理论依据和技术支持。 其他说明:文章不仅提供了详细的理论解释,还附有大量Matlab/Simulink代码片段,便于读者进行实践操作。同时,针对一些常见问题给出了实用的调试技巧,有助于提高仿真的准确性和可靠性。
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