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The turbine and compressor are treated as a single controlled entity, comprising electronic hardware, software, and a hydraulic actuator to form a complete control system, realising the joint coordinated control of the rotational speed of the turbine with the rotation angle of the vane of the compressor. It has different types of control functions such as speed increase control, variable speed control, constant flow / pressure control, anti-surge and backflow prevention control, wind valve control for anti-surge, real-time monitoring of the operating point of the compressor speed increase control, variable speed control, constant flow / pressure control, anti-surge and backflow prevention control, and wind valve control for anti-surge, real-time monitoring of the operating point of the compressor. It also has protective functions such as parameter limit alarm and restrictions and over-speed failure protection and automatic turbine stoppage, as well as simulation test functions for pre-start-up debugging and operator training.
Product advantages
- Highly reliable: CPC dual redundancy, 2oo3 redundancy for rotation speed, power source redundancy, network redundancy, and LVDT redundancy.
- Control accuracy: Fixed rotation speed, rotation speed control accuracy ＜±2 rotations / minute; fixed pressure or fixed flow control method can achieve relatively high control quality.
- Adopts oil servomotor that comprises a highly reliable servo valve, which uses the LVDT to feedback to the electro-hydraulic servo closed-loop system.
- Fast dynamic response with control cycle at least ＜50ms.
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