Starting device and method for digital power generator electrically started in reverse dragging manner

A technology of digital generator and starting device, which is applied in the direction of motor starting, engine starting, engine components, etc., can solve problems affecting engine performance, affecting engine stability, etc., saving weight and volume, flexible shape design, Product design compact effect

Inactive Publication Date: 2017-05-17
SUZHOU ERMA MECHNICAL & ELECTRICAL
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Problems solved by technology

However, fluctuations in air pressure can affect the stability of engine starting, thereby affecting engine performance

Method used

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  • Starting device and method for digital power generator electrically started in reverse dragging manner

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] see figure 1 , the digital generator starting device of anti-drag type electric start of the present invention outputs three-phase current to three windings L1, L2, L3 of three-phase motor 5, and three windings L1, L2, L3 generate magnetic field, drive three-phase motor 5 The rotor rotates, and the rotation of the rotor drives the engine to rotate. When it reaches a certain speed, the engine is ignited, so this device can replace the function of the starter motor, saving the weight and volume of the product, making the use of the shape design more flexible and making the product design more...

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Abstract

The invention discloses a starting device and method for a digital power generator electrically started in a reverse dragging manner. The device comprises a controller, a three-phase motor, a battery pack, a voltage boosting module and a three-phase H bridge, wherein the battery pack, the voltage boosting module and the three-phase H bridge are in sequential cascading. The voltage boosting module achieves voltage boosting on the input voltage of the three-phase H bridge. The controller outputs a PWM signal to control alternate conduction of six MOS transistors Q1-Q6 in H bridge type connection of the three-phase H bridge, the three-phase H bridge is made to output three-phase current to three windings L1, L2 and L3 of the three-phase motor, the three windings L1, L2 and L3 are powered on alternately, the current flowing through generates the magnetic field, a rotor of the three-phase motor is driven to rotate, and therefore the digital power generator connected to the rotor is started. The device can replace the functions of a starting motor, the weight and the size of products are saved, the using shape design becomes more flexible, and the product design is made more compact.

Description

technical field [0001] The invention relates to the starting technology of a generator set, in particular to a digital generator starting device and a method thereof for anti-drag electric starting. Background technique [0002] The starting system of a traditional gasoline or diesel portable generator set is mainly composed of a starter motor, a flywheel ring gear, and a starter relay. The starter motor and the ring gear belong to the auxiliary devices of the generator, which are high in cost and heavy in weight. The starter motor is typically mounted on the side of the engine block and engages the flywheel, and the air motor starter system requires high pressure air. However, fluctuations in air pressure can affect the stability of engine starting, thereby affecting engine performance. In addition, the air motor is installed on both sides of the engine, which increases the width of the generator set. This starting method puts forward higher space requirements for the com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08
CPCF02N11/0814
Inventor 马云峰
Owner SUZHOU ERMA MECHNICAL & ELECTRICAL
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