A method and system for modifying gas turbine component characteristic lines
CN116822119BActive Publication Date: 2026-08-28HUADIAN ELECTRIC POWER SCI INST CO LTD
Patent Information
- Application Number
- CN202310099598.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-31
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2043-01-31
AI Technical Summary
Technical Problem
[0005]本申请实施例提供了一种燃气轮机部件特性线的修正方法和系统，以至少解决相关技术中现有燃气轮机特性线修正方案存在的修正成本高和修正效果差的问题
Benefits of technology
[0016]相比于相关技术，本申请实施例提供的一种燃气轮机部件特性线的修正方法和系统，该方法通过从燃气轮机的运行数据中，选取出进口可转导叶在不同角度下的运行数据，根据运行数据计算得到进口可转导叶的第一流量修正因子和第一效率修正因子；基于燃气轮机的折合转速、进口可转导叶的角度、第一流量修正因子和第一效率修正因子，构造流量修正因子等高线和效率修正因子等高线；根据流量修正因子等高线和效率修正因子等高线，通过等高线内插法， 计算出进口可转导叶在各种状态下的第二流量修正因子和第二效率修正因子；将第二流量修正因子和第二效率修正因子，代入进口可转导叶在满开状态下的燃气轮机部件特性线中，得到进口可转导叶在各种状态下的燃气轮机部件特性线，解决了现有燃气轮机特性线修正方案存在的修正成本高和修正效果差的问题，实现了利用实际机组部件的运行数据对参考特性线进行修正，进一步地引入特性线修正系数通过等高线法得到不同IGV状态下的燃气轮机特性线，从而使之能够匹配实际运行燃气轮机部件的特性。
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Abstract
The application relates to a gas turbine component characteristic line correction method and system, wherein the method comprises the following steps: based on operation data of a gas turbine, calculating a first flow correction factor and a first efficiency correction factor of an inlet variable guide vane; then constructing a flow correction factor contour line and an efficiency correction factor contour line; further calculating a second flow correction factor and a second efficiency correction factor through contour line interpolation; and substituting the second flow correction factor and the second efficiency correction factor into a gas turbine component characteristic line to obtain the gas turbine component characteristic line of the inlet variable guide vane under various states. Through the application, the problems of high correction cost and poor correction effect existing in the prior gas turbine characteristic line correction scheme are solved, the reference characteristic line is corrected by using operation data of a unit component, the gas turbine characteristic line under different IGV states is further obtained through the contour line method, so that the gas turbine characteristic line can match the characteristics of an actual operation gas turbine component.
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Citation Information
Patent Citations
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