Precognition type electronic speed regulator of generator set and speed regulating method thereof

Abstract

The invention relates to a precognition type electronic speed regulator of a generator set and a speed regulating method thereof. The precognition type electronic speed regulator of the generator set is characterized in that a current sampling circuit sampling the currents of the generator set is added on the basis of the traditional device, and a microprocessor monitors generator set current sampling signals transmitted by the current sampling circuit in real time; when the generator set current sampling signals are suddenly substantially increased, the microprocessor immediately controls and increases the oil supply quantity of a motor so that the motor of the generator set have sufficient capability to prevent rotating speed from being substantially decreased because loads are suddenly increased; with such a same way, when load currents are substantially decreased, the precognition type electronic speed regulator can start to substantially decrease fuel oil supply before the rotating speed of the motor is not increased to prevent the rotating speed from being substantially increased because the loads are suddenly unloaded so that the loading capability of the generator set is enhanced and the synchronous motor loading capability is enhanced especially, and therefore, the precognition type electronic speed regulator can control the fluctuation rate of the rotating speed of the motor to be kept in an optimal state under any loading condition.

Description

technical field [0001] The invention relates to engine control technology, in particular to a generator set predictive electronic speed governor and a corresponding speed regulation method, belonging to the field of engine speed regulation. Background technique [0002] Generator sets are widely used in modern society as a common or backup power source. The main function of the governor is to control the speed of the engine within the required range. That is, when the load of the generator set changes, the fuel supply of the engine can be automatically adjusted to keep the fluctuation of the engine speed as small as possible. With the advancement of generator set technology, the governor has also gone through several stages of mechanical governor, hydraulic governor, pneumatic governor, analog electronic governor and digital electronic governor. Among them, the digital electronic governor is mainly composed of a speed sensor, an input circuit, a microprocessor, a drive cir...

AI Technical Summary

Problems solved by technology

At present, all governors only increase fuel after detecting that the engine speed has decreased, which has lagged behind in terms of control.

In addition, due to the combustion characteristics of the engine, even if the fuel increases, the torque of the engine will not increase rapidly, so that the engine speed will continue to drop for a certain period of time before starting to rise, which can easily cause the engine to be dragged to death when the asynchronous motor is started.

Therefore, when selecting a generator set for a load such as an asynchronous motor, it is required to have sufficient power redundancy, which is undoubtedly a big horse and a small cart, resulting in an increase in the cost of use

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