Frequency conversion energy saving generating set

Abstract

The invention relates to a frequency conversion energy saving generating set. The frequency conversion energy saving generating set includes a signal conversion unit, a PLC module, and a speed regulation controller, wherein the signal conversion unit detects the electrical load state in real time and feed back the electrical load state to the PLC module; the PLC module receives the information of the signal conversion unit, and sending a real-time speed regulation signal to the speed regulation controller after intelligent logic operation rotating speed value of load rotating speed optimal oil consumption; the speed regulation controller receives a real-time speed regulation control signal of the PLC module and the feedback about the real-time state detection of the rotating speed from a rotating speed sensor, and provides electric excitation drive for a speed regulation driver through a PID control algorithm so as to regulate the rotating speed of an engine in real time. The frequency conversion energy saving generating set can realize intelligent speed regulation following changing of electrical load, so that the utilization efficiency of fuel oil of the generating set during the practical using process is improved. Besides, by means of speed regulation control, the engine is regulated in real time in different corresponding rotating speed during the operating process, so that the generating set can achieve the maximum economization of fuel oil consumption of the rotating speed required by different load when the generating set is in different electrical load state.

Description

technical field [0001] The invention relates to a variable frequency energy-saving generator set, in particular to a diesel generator set with low and medium power automatic speed regulation and power frequency. Background technique [0002] For a long time around the world, the exploitation and struggle of oil has never ceased; the contradiction between human demand and dependence on oil and the sharp decline in oil has already aroused global vigilance and advocated energy conservation and emission reduction. It can be seen from this Energy saving and consumption reduction of internal combustion engines is of great significance. [0003] At present, no matter the load is no-load or full-load, the AC generator set with internal combustion engine must always work at the rated speed in order to maintain the rated frequency of power supply output. The rated output voltage cannot be adjusted according to the change of power load Automatic speed regulation and constant frequency...

AI Technical Summary

Problems solved by technology

[0003] At present, no matter the load is no-load or full-load, the AC generator set with internal combustion engine must always work at the rated speed in order to maintain the rated frequency of power supply output. The rated output voltage cannot be adjusted according to the change of power load Automatic speed regulation and constant frequency and constant voltage, not to mention consumption reduction and energy saving, and backup generators are mostly operated under lower loads, and the range of load changes is large

Running at high speed at low load and low load rate will result in high fuel consumption and high noise

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