论文标题:复杂混流式水轮机装置系统甩负荷过渡过程的分析及优化
Analysis and Optimum on Load Rejection Transient Process of Francis Turbine with Complicated Unit Device
论文作者 彭敬
论文导师 常近时,论文学位 硕士,论文专业 机械设计与理论
论文单位 中国农业大学,点击次数 694,论文页数 66页File Size2119k
2001-04-01论文网 http://www.lw23.com/lunwen_91027/ 数学模型;水力干扰;优化
mathematic model, hydraulic surging, optimize
本文建立了复杂混流式水轮机装置系统基于内特性解析的特征线法的数学模型，并对重庆涪陵石板水电站进行实际计算与现场试验，结果证明该数学模型具有较高精度。探讨了甩负荷机组的水力大波动对正常并网运行机组的水力干扰问题，通过现场试验验证了利用水轮机内部流动特性建立并网运行机组的数学模型的可行性。最后，用计算机对石板水电站4#机导叶控制规律进行优化，将两段关闭具体参数提供给厂家。
Based on the method of characteristics with Internal Character Analysis, the mathematic model of Francis Turbine with complicated unit device is built in the thesis, and the units of the Shiban Hydropower Plant in Fuling District of Chongqing is practically calculated. The result of the field test, which is gotten by the transient process test done in the plant, indicates that the mathematic model is with high precision. The problem of hydraulic surging on the normally operating units being connected to the transmission條ine system of electric power, which is caused by the load rejection unit, is discussed here. The feasibility of the mathematic model being built by using the internal flow character of hydraulic turbine and aiming at the operating units being connected to the transmission條ine system of electric power is proved by the field test. In the end, the control law of guide vane for NO. 4 unit of Shiban Hydropower Plant is optimized with the aid of computer, and the parameters of two梥egment closing law for guide vane is provided to the plant.
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