Automatic control of diesel generator, automatic control manual of diesel generator set

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Generally, the mains detection loop is installed in the start-up control loop of the generator, and the simplest is a relay, whose coil is connected to the mains, and the normally closed point is connected to the diesel engine start command. Another function of it is that after the mains power comes in, the diesel engine stops by itself. However, there are generally ready-made controllers to choose from, and the above-mentioned start-up and shutdown is not the best action plan, for example, the shutdown of a diesel engine is best to idle for a period of time after all the loads are removed.

The mains detection is detected by the two pins given by the generator control system, as for the components you said: in fact, it is a normally closed contact, when there is a pilot, it is normally open, and the electric shock is closed when the mains power is off, and the two pins given by the control system are connected and the generator starts. On the contrary, if the contact is not broken, the pin will be broken and the generator will be shut down.

This normally closed contact is a mains detection relay, which is very cheap.

ATS Conversion Cabinet.

I am a generator set manufacturer, if the customer has a request, we will help the customer design.

An auto-detect switching unit is sufficient. We specialize in this type of equipment. If you have any requests, please send an email to.

If you want the generator to have automatic protection function, it is recommended to buy an ATS conversion cabinet and a generator control module.

Dear, hello, I'm glad to answer for you, the automatic control manual of diesel generator set is as follows:1The automatic start control diesel generator is equipped with an automatic starting device, when the municipal knowledge bureau has no power and is suddenly interrupted, the control system will automatically start the generator set, which can ensure the normal operation of the equipment and avoid the power loss caused by power failure.

2.The automatic switching control diesel generator set is also equipped with an automatic switching device, when the mains power is restored, the control system will automatically switch back to the mains power supply. If the mains power is interrupted again, the generator set will start again and provide backup power to guarantee the normal operation of the equipment.

3.Automatic power supply control diesel generator set also has an automatic power supply control system, when the mains power is insufficient or the mains quality is unstable, the control system will automatically start the generator set to provide stable power for the equipment. 4.

The control system of remote monitoring and control diesel generator set can be connected with the computer network to achieve remote monitoring. In this way, the equipment administrator can remotely monitor the operating status, operating parameters, fuel consumption and other information of the generator set from anywhere for timely service or maintenance. Through the above automatic control functions, the operation of the diesel generator set can be more stable and reliable, and it also provides convenient monitoring and maintenance methods, reduces manual intervention, and improves operation efficiency.

Dear, the above is mine, I hope these contents can help you, thank you for your understanding and support, I will continue to work hard. Thank you, dear.

The main control functions include fuel injection control, intake control, idle speed control, exhaust gas recirculation control, exhaust gas turbocharging pressure control, fault self-diagnosis and failure protection control.

1 Fuel Injection Control.

Fuel injection control mainly includes fuel injection volume control, fuel injection timing control, fuel injection law control, as well as the control of uneven fuel injection volume of each cylinder, fuel injection pressure control and other control contents.

1) Fuel injection volume control.

The electronic control unit takes the speed sensor and the throttle position sensor and the accelerator pedal position sensor input the diesel engine speed and load as the basic control parameters, determines the basic circulating fuel injection amount, and then corrects it according to other relevant input signals, and finally determines the actual circulating fuel supply (injection) volume.

2) Fuel injection timing control.

The electronic control unit takes the diesel engine speed and load input by the speed sensor and the throttle position sensor and the accelerator pedal position sensor as the basic control parameters to determine the basic fuel supply (injection) timing and realize the closed-loop control of the fuel injection timing.

3) Control of fuel injection rules.

Fuel injection law control is the law of the rate of injection and the amount of fuel injected over time.

4) Control of uneven fuel injection volume of each cylinder.

The electronic control unit takes the allowable deviation of speed fluctuation between cylinders as the control target value, and corrects the fuel injection amount of each cylinder.

2 Air intake control.

Intake control includes variable intake vortex control, variable valve timing control, intake throttling control, and intake preheating control.

3 Idle speed control.

Idle speed control mainly includes idle speed stability control and control of the working uniformity of each cylinder at idling.

4. Exhaust gas recirculation control.

The purpose of exhaust gas recirculation control is to reduce NOx emissions in the exhaust gas. Exhaust gas recirculation control includes the determination of exhaust gas recirculation conditions and the control of exhaust gas recirculation amount.

5 Exhaust gas turbo pressure control.

There are two main control methods: wastegas bypass channel control and turbine flow section control.

6. Fault self-diagnosis and fail-safe control.

There are many classification methods for diesel generator sets, which can be divided into high, medium and low speed units according to the speed of the engine; According to the size of the power, it can be divided into large, medium and small units. According to the output voltage frequency, it can be divided into AC units (intermediate frequency: 400Hz, power frequency:

50Hz) and DC units, when the voltage frequency is 50Hz, the calibration voltage of small and medium-sized diesel engines is generally 400V (three-phase) or 230V (single-phase), and the calibration voltage of large-scale power generation equipment is generally. But the more commonly used classification method is to classify the diesel unit according to how it is controlled.

Self-starting control.

The self-starting unit is based on the manual unit, adding an automatic control system, when the mains power suddenly fails, the unit has the functions of automatic start, automatic voltage regulation, automatic frequency regulation, automatic switch switching and automatic shutdown; When the oil pressure of the unit is too low, the oil temperature and the cooling water temperature are too high, it can automatically send out an audible and visual alarm signal; When the unit is overspeeding, it can automatically stop the emergency to protect the unit. The advantage of self-starting units is that they greatly reduce the dependence on the operator and shorten the time between the interruption of the mains power supply and the supply of the unit. This type of unit is usually used as a backup power source.

Microcomputer control automatic control.

The unit is composed of a diesel engine, a synchronous engine, an automatic compensation device for fuel (oil, cooling water) and an automatic control screen. The automatic control screen is controlled by programmable automatic controller (PLC), in addition to the functions of the self-starting unit, it can also automatically increase or decrease the unit according to the load size, automatically deal with faults, automatically record the operation report and fault situation of the printer group, and implement comprehensive automatic control of the unit. The serial communication interface (RS232, RS422 or RS485) realizes real-time remote control, remote signaling and telemetry (commonly known as "three remotes") of the central station to the scattered units, so as to achieve unattended.

The degree of automation of the unit can be configured according to the actual needs. This type of unit is particularly suitable for use as an emergency power supply.

Manual control. This type of unit is the most common, the unit has the function of automatic voltage and speed adjustment, and the operator starts, closes, opens and stops the unit at the site of the machine room. This type of unit is usually used as a main or backup power source.