Power generation method of portable three-phase AC generator

Abstract

The invention discloses a power generation method of a portable three-phase AC generator. The portable three-phase AC generator mainly comprises an inversion circuit, a trigger driving circuit, a three-phase four-wire system output circuit, an output sampling circuit, a microprocessor unit and related facilities of the portable three-phase generator. A portable generator is convenient to use, butis usually a single-phase generator. According to the power generation method of the portable three-phase AC generator, three groups of inversion units are connected in parallel, and three groups of sine waves with the phase difference of 120 degrees are generated by the control of the trigger time of the corresponding inverter circuits, and the outputs of the three groups of inverter circuits areconnected to form a three-phase four-wire system structure, so that a three-phase alternating current is outputted, and the requirement of a three-phase electric load in a field or a region which cannot be covered by a power grid is met. The application range of the small gasoline generator is enlarged, and the generator can be widely applied to the technical field of generators.

Description

technical field [0001] The invention relates to the field of gasoline engines, in particular to the field of gasoline generator control systems, in particular to a portable three-phase alternator power generation method. Background technique [0002] At present, people's lives in our country are getting better and better, and the requirements for the environment are getting higher and higher. With the development and popularization of my country's electric power industry, people are used to using various electrical appliances in their daily lives. Rice cooker, induction cooker and other electrical appliances. However, in remote areas such as deserts and grasslands, there is no power grid to provide power. When people drive out to camp, in some emergency rescue, on-site construction and other situations, they have various power needs. Portable small gasoline generators meet this need. [0003] Small gasoline generators are small in size and high in cost performance, and are ...

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Problems solved by technology

However, this type of mobile generator is generally single-phase, suitable for household appliances such as lighting, rice cookers, and electric kettles. If a certain load (such as engineering construction machinery and equipment, etc.) The machine cannot drive the load to work normally

[0004] As a mobile device, the rated power of a single generator cannot be increased without limit. Some portable electrical loads generally have a small power and require a single-phase power supply. However, in some areas without power supply, There will also be engineering equipment that needs to use three-phase alternating current. Although the voltage amplitude and frequency of the alternating current output by the single-phase generator are the same, the phase is different with the start-up time. The three generators are directly connected in parallel to form a three-phase power supply. , will cause waveform distortion, affect the normal operation of the generator, or even short circuit, damage the generator

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