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NEW ENERGY
New energy
Digital Hydraulic Control System of Heliostat for Tower Type Solar Thermal Power Generation
Large-scale tower thermal and thermal power generation heliostat drive and control need to use hydraulic servo control. Servo valve + sensor closed loop control system theory is complete, but there are many uncertainties in the application, so there are a lot of technical know-how above servo valve control system. For example: on the servo valve frequency selection, the actuator (hydraulic cylinder and hydraulic motor) minimum starting pressure selection, the actuator load stability and stable pressure design, high and low temperature lead to changes in liquidity to the hydraulic oil and so on, therefore, servo valve control system only a few companies and a few experts can master the implementation. In addition, the servo valve control system with high requirements for the use and maintenance of the technology, so that the servo valve control system is not stable and reliable, comprehensive cost is very high, often 10 times to reach the total price of the device.
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