小水电站自动化系统和调速器的发展趋势.ppt

Thank You ! 谢谢 ! spwei@263.net Hydraulic Turbine Governor (Small Hydropower Station ) The dynamic tests of HTRS are complex work, it will spend a lot of time and water. For example ,to do an unit load rejection test may spend about 5~10 minutes or need some more time. As we all know, the “water” and the “time “ is money. So, we can not do a great deal of repetition tests in the hydraulic ? power station. 水轮机调节系统在水电站的动态试验是一件复杂的工作，而且将耗费大量 的水和时间。每做一次机组甩100%额定负荷试验，大约需要5~10分钟，甚至 更长的时间。众所周知，对于水电站来说，“水”和“时间”就是金钱。所以， 我们不可能在水电站做大量的这种试验。 This is the actual wave curve of unit 100% load rejection test at a hydro power station . 这是某水电站甩100%额定负荷的 动态过程录波曲线。 Hydraulic Turbine Governor (Small Hydropower Station ) However, the hydraulic turbine regulation system is a complex system, many parameters can be adjusted, for example, for the three adjustable parameters, if each parameter take three values, we can only do 27 tests, adjustment to get the best parameters combination. Obviously, this is impossible. 水轮机调节系统是一个复杂的系统，有很多参数可以修改设定。如果对每 一个可选参数设定3个数值，对于有3个参数来说，只有进行27次试验，才能 找到它们最好的参数组合。显然，这在水电站是不可能进行这么多次的试验的。 This is the actual wave curve of unit 100% load rejection test at a hydro power station . Hydraulic Turbine Governor (Small Hydropower Station ) We will introduce Hydraulic Turbine Regulating Simulation and Decision Support System later. So, for a dynamic characteristic problems, we can first of all on the simulation system to simulate and find the orientation and broad selection PID parameters values , then in hydropower station to do a small amount of tests are needed, We can successfully solve the problem. This is the role of Simulation decision support systems. 我们将在下面介绍水