OPERATION DEVICE OF WATER WHEEL GENERATION WITH CAPACITY DIFFERENCE

摘要

PURPOSE:To increase load while limiting discharge and improve the operating efficiency of a water wheel by switching the operation of a large capacity machine by a deviation command part from a level adjustment operation to a discharge limitation operation when flow increases on operation of the large capacity machine and then the water level at a discharge port exceeds a water level versus discharge curve stored in a discharge limitation curve part. CONSTITUTION:When a dam water level is detected and is outputted by an upper water adjustment band judgment part 23, a first machine with a large capacity is operated by a first machine operation command part 28 and then a flow setting value Qs and the amount of flow from a first machine flow calculation part 17 are inputted to a first machine deviation proportion control part 26 for controlling water level adjustment. When the waver level at a discharge port is exceeded during the controlling, a discharge limitation curve part 16 outputs a discharge limitation flow setting value for switching to a discharge limitation control. When dam water level further increases, a program operation region discrimination part 21 performs output, an operation machine discrimination part 24 performs output to a second machine operation command value 29 based on the flow setting value Qs, performs the full-load operation of the second machine with a small capacity, and then perform the water level adjustment operation of a large-capacity first machine.