Hybrid power supply apparatus and method for controlling same

Abstract

Provided is a hybrid power supply apparatus supplying power to industrial equipment such as excavators. The hybrid power supply apparatus comprises: a power supply unit for supplying power to an operating load of hybrid equipment; a hybrid controller for controlling a movement of the operating load; a control power supply unit for supplying power to the hybrid controller; an auxiliary power supply unit for converting the voltage of the power supply unit to power and supplying the power to the hybrid controller instead of the control power supply unit or charging the control power supply unit; and a first switch unit for connecting the control power supply or the auxiliary power supply unit to the hybrid controller.

Description

technical field [0001] The invention relates to a hybrid power supply device for supplying power to industrial equipment such as an excavator and a control method thereof. Background technique [0002] In recent years, with the rapid rise of international oil prices, there have been problems with the fuel consumption of various industrial machinery. Therefore, active efforts have been made to store the remaining power of the engine in the battery and use the battery to supplement the insufficient power of the engine to improve Research on fuel consumption. As described above, a system using an engine and an electric motor as a common power source and having an electric energy storage device is called a hybrid system. Hybrid systems are generally used in industrial equipment such as various automobiles and excavators. [0003] In general, excavator equipment uses an engine as a power source, and uses hydraulic pressure to rotate or travel a boom, a boom, and a bucket that a...

AI Technical Summary

Problems solved by technology

However, when there is a problem with the control power supply itself, for example, when the battery constituting the control power supply is dead or its life is exhausted, and it cannot be used any longer, there is a problem with the cable connecting the battery, and the power supply cannot be smoothly supplied, and when the battery is charged. When the equipment breaks down, etc., the entire equipment cannot be used until it is repaired. In particular, when the control power supply is cut off (OFF) during the operation of the excavator, and the rotating body cannot be controlled, a lot of manpower and material resources will be wasted.

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