Improve the international level of generator parts and promote the rapid development of the industry
The generator controller is based on the microprocessor, and the generator voltage, diesel engine speed and water temperature, oil temperature, oil pressure, overcurrent, short circuit and other signals are input into the microcomputer system through sampling and conversion to realize the self-starting of the diesel generator set. An important accessory for the function. With the continuous upgrading of generator sets, the logic control of relay control and separation of electronic components will gradually be eliminated by the market.
The programmable genset controller is stable, convenient and flexible, and is still the main force of the automation unit controller. However, it has complicated peripheral circuits, and needs to be configured with logic, circuit, oil temperature, oil temperature logic judgment circuit and port expansion relay and other insurmountable defects.
The development of science has spawned the birth of a professional controller for automated units. The professional generator set controller is quickly popularized and applied for its flexible use, simple peripheral circuit and strong professionalism. The controller is mainly composed of three parts: (1) motor control part, which mainly includes voltage regulating device, overload, short circuit protection unit and voltage regulator. (2) The diesel engine control part is mainly composed of start-up, shutdown operation, electronic regulator and liquid crystal display module, etc., to realize the monitoring of the working state of the diesel engine. (3) Microcomputer control part, which is the core of automatic control of diesel generator set, mainly composed of host control unit, signal detection unit, power drive unit, parameter display unit and power supply unit.
The main functions of the professional controller control system are as follows:
(1) It has three operating modes: automatic, manual and experimental.
(2) The phase (line) voltage, current, frequency, speed, power, temperature, pressure, etc. of the generator and the city network can be monitored in real time without external instruments. Real-time alarm for faults such as overspeed, low oil pressure, high water temperature, overvoltage, undervoltage, overfrequency, underfrequency, overcurrent, short circuit, and startup.
(3) It can be automatically adjusted by comparing the output voltage and frequency of the unit with the set value, without the need of an external voltage frequency controller.
With the upgrading of generator products, the generator parts manufacturing technology should be correspondingly innovated. In this respect, China's generator industry can carry out special research while introducing foreign advanced technology to make China's generator parts. Gradually reach the level of internationalization, and contribute to the future development of China's generator industry.
