Water turbine online economic operation system based on cavitation erosion vibration area planning

The invention discloses a water turbine online economic operation system based on cavitation erosion vibration area planning, and belongs to the technical field of water turbine economic operation. A water turbine online economic operation system based on cavitation erosion vibration area planning comprises the steps that vibration area testing is conducted on each hydroelectric generating set after overhaul is completed, and an approximate full-water-head vibration area distribution model is obtained; and in combination with the hydroelectric generating set on-line state monitoring system, an operation condition sample database of each set is established. According to the method, a full-water-head vibration area distribution model is obtained, the cavitation and cavitation erosion state of the water turbine is monitored through the acoustic emission technology, unit flow characteristic curves in a cavitation erosion vibration area and a critical operation area are converted, the flow characteristic curve in