燃气轮机发电机组突变负荷对性能的影响

张亚东; 姜里运; 韩晓光; 徐鑫; 张轲

doi:10.13224/j.cnki.jasp.2016.12.002

燃气轮机发电机组突变负荷对性能的影响

doi: 10.13224/j.cnki.jasp.2016.12.002

中国航空发动机集团有限公司沈阳发动机研究所, 沈阳 110015

详细信息

作者简介:
张亚东(1983-),男,江苏连云港人,工程师,硕士,主要从事燃气轮机总体性能研究设计工作.

中图分类号: V231
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出版历程
- 收稿日期: 2015-03-29
- 刊出日期: 2016-12-28

Effects of mutational load on performanceof gas turbine generator set

Shenyang Engine Research Institute, Aero Engine(Group) Corporation of China, Shenyang 110015, China

摘要

摘要: 针突变负荷对快速响应和实时性的要求，采用容积法建立分轴燃气轮机发电模型，制定突变负荷的控制规律和串级三回路控制策略，分析影响突变负荷性能的关键因素，表明不同的限制参数对突变过程动态性能具有不同的影响，合理的选取限制参数及限制值能够优化突变性能.通过燃气轮机发电机组突变负荷试验验证，表明模型计算结果具有较好的实时性、收敛性与动态响应特性，与试验结果的吻合性较好.通过对燃气轮机特性分析及发电机组突变负荷的试验研究表明：为了获取良好的突变性能，控制系统应在突变负荷1s内达到燃料调节限制线；甩负荷时需设置最小燃料限制值，合理的选取限制值是保证稳定燃烧和控制超调量的关键.
- 燃气轮机 /
- 动态性能 /
- 仿真与试验 /
- 突变负荷 /
- 甩负荷
Abstract: According to the fast response and real-time simulation requirements of mutational load, a split shaft gas turbine power generation model was built using volumetric method to better accommodate rapid load changes. The control rules of step changes in load to be adopted and the cascade proportion integration differentiation (PID) control policy were presented. The key influential factors to dynamic performance of step changes in load were discussed. Simulation results show different limitations of parameters bring different effects on the gas turbine dynamic performance. Selecting limitations of parameters reasonably can optimize gas turbine dynamic performance. Results of model were presented and compared with the test date, indicating the model and engine agreed well for each other. The results show the model has good real time, convergent and dynamic response property. Theoretical analysis and test result demonstrate the fuel limitation curve should be operated in 1s after rapid load changes to achieve better dynamic performance. The minimum fuel limitation is necessary for load rejection, and reasonable selection of the limit value is the key to ensure stable combustion and control speed overshoot.
- gas turbine /
- dynamic performance /
- simulation and experiment /
- mutational load /
- load rejection

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