• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies >Improvement of a non-linear model of ultra-supercritical boiler-turbine unit and its application
【24h】

Improvement of a non-linear model of ultra-supercritical boiler-turbine unit and its application

机译：超超临界汽轮机非线性模型的改进及其应用

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The characteristic of supercritical unit is not easily controlled, because the research on the coordinated control system of ultra-supercritical coal-fired (USC) power unit is usually based on a kind of mathematical model, which is used to test the correctness of the design concept and the effectiveness of the control strategy. If the mathematical model cannot reflect the intrinsic nature of the controlled object, the simulation results are difficult to explain that the control strategy designed is successful. In this paper, a simplified non-linear model which is suitable for the controller design in coordinated control system of a once-through boiler-turbine unit is analyzed at first. Then based on the study of the above model, features and improvement suggestions of the non-linear model are proposed. At last, step forced simulation test and comparison test with operation data were done to test the effectiveness and accuracies of the simplified non-linear once-through boiler model. Simulation results show that this model has same dynamic characteristics with the actual unit and can predict output changes with certain accuracy which means that it is fit for the controller design of coordinated control system of ultra-supercritical coal-fired (USC) power unit. This may serve as a reference for engineering analysis and simulator development of ultra-supercritical power units.
机译：超临界机组的特性难以控制，因为对超超临界燃煤（USC）机组协调控制系统的研究通常基于一种数学模型，用于检验设计的正确性。概念和控制策略的有效性。如果数学模型不能反映受控对象的内在本质，则仿真结果很难解释所设计的控制策略是否成功。本文首先分析了一种简化的非线性模型，该模型适用于直流锅炉水轮机机组协调控制系统中的控制器设计。然后在对上述模型的研究的基础上，提出了非线性模型的特点和改进建议。最后，进行了分步强制模拟试验和与运行数据的对比试验，以检验简化的非线性直流锅炉模型的有效性和准确性。仿真结果表明，该模型具有与实际机组相同的动态特性，能够以一定的精度预测输出变化，适合于超超临界燃煤机组协调控制系统的控制器设计。这可以作为超超临界功率单元的工程分析和仿真器开发的参考。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号