Microcomputer Speed Regulator

The XSJ-1300WT microcomputer speed controller is a high oil pressure microcomputer speed control system aimed at small and medium-sized hydropower station generator sets. This microcomputer speed controller's electrical regulation device is a new type of turbine regulation controller based on programmable control and modular design, featuring functions such as water machine control and regulation, online monitoring and fault self-diagnosis, fault tolerance, system communication (supporting IEC 61850 communication), and human-machine interface.

The equipment is the company's latest developed high-reliability, powerful turbine speed control system equipment, which can meet the design technical requirements for unattended or unmanned hydropower stations, making it one of the important devices for intelligent hydropower stations.

The application of this microcomputer speed controller can improve the reliability and stability of turbine speed control, which is beneficial for the safe and reliable operation of hydropower generator sets, and can enhance the intelligence and informatization level of hydropower turbine speed control.

It is suitable for single-machine capacities of 100MW and below for various types of turbines (mixed flow, axial flow, through flow, impact, etc.) for single and dual regulation systems, and is also applicable to unattended or unmanned hydropower station systems.

Good fault tolerance

Achieve optimized control for the safe and stable operation of the hydroelectric generator under conditions of generator speed feedback signal failure, stroke feedback signal failure, head signal failure, hydraulic signal failure, and power supply abnormalities.

High reliability

The use of strong anti-interference electrical design, including strong and weak current isolation, filtering, dual power supply, fault protection, and outlet safety locking, along with a highly reliable hydraulic device, has improved the reliability of the governor.

Good scalability

Designed with expandable modules and dual machine configuration mode, hardware modular design allows flexible configuration of modules for different units, while supporting various communication interfaces and protocols for easy system integration.

Simple debugging

Features a user-friendly graphical human-machine interface and rich event and debugging information, capable of automatically conducting various tests and selecting corresponding parameters; it can automatically perform test recording functions, generate test data, and provide test results. Flexible configuration and easy to use.

Control and adjustment functions

① It has frequency adjustment mode, power adjustment mode, and opening adjustment mode, and automatically selects according to different working conditions.

② The hydroelectric generator set operates stably under no-load, power generation, phase adjustment, shutdown, and manual conditions.

③ During no-load operation, the unit frequency automatically tracks the system frequency according to the preset frequency difference.

④ It has dual input for automatic head and manual head, which can be set through the interface, effectively overcoming the impact of head fluctuations and level transmitter failures, ensuring disturbance-free switching.

⑤ It can real-time correct the starting opening, no-load opening, opening limit, and coordination curve according to the head.

⑥ It has dual functions of local control and remote control, manual and automatic control, ensuring no disturbance in load during control switching.

Online monitoring and fault self-diagnosis

Online monitoring of power supply, guide vane, blade fault status, machine frequency, grid frequency, guide vane motor limit, oil level, pressure, relay position, oil pump status, solenoid valve status, control circuit monitoring, PLC battery voltage, tracking system faults, etc., with abnormal or fault alarms.

System communication

It has RS485 and Ethernet communication interfaces, supports communication protocols such as IEC 61850 and MODBUS, and supports dual network communication.

Human-machine interface

It can achieve human-machine interaction of the speed governor system through a large LCD touch screen and buttons, monitoring, querying, operating, and controlling.