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Speed changing diesel generator

A technology for diesel generators and generators, which is applied in the direction of controlling generators, controlling generators and electrical components through magnetic field changes, and can solve problems such as low voltage, unusable electrical equipment, and low frequency, so as to ensure high efficiency, The effect of reducing fuel consumption and reducing flue gas emissions

Inactive Publication Date: 2008-04-16
陈滨岛 +1
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

But this kind of working state is fatal and unacceptable for the traditional diesel generator set, because when the diesel engine is working at low speed, the electromotive force generated by the synchronous generator, that is, the voltage and frequency are too low, and the electrical equipment cannot be used at all.

Method used

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  • Speed changing diesel generator
  • Speed changing diesel generator
  • Speed changing diesel generator

Examples

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Embodiment Construction

[0024] The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.

[0025] Referring to Fig. 2, the variable speed diesel generator of the present invention comprises a diesel engine 10, a synchronous generator 20 and an energy conversion controller 30, wherein the diesel engine 10 is coaxially connected with the synchronous generator 20, and the diesel engine is commercially available with a full range of The diesel engine with a governor, its full-range governor can continuously adjust the working speed of the diesel engine from idle speed to full speed. The full speed governor is controlled by electric signal for automatic speed regulation. Driven by the diesel engine, the synchronous generator 20 can run stably in the range from idle speed to full speed, generate AC power with different voltages and frequencies, and output it to the energy conversion controller. For example, su...

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Abstract

The invention relates to a variable-speed diesel generator, comprising a diesel engine provided with a global speed governor with working speed continuously adjustable from idle speed to full speed and a synchro generator axially connected to the diesel engine. The invention is characterized in that the variable-speed diesel generator also has an energy-conversion controller that controls the generating power of the generator by converting AC electric energy (from low-frequency low-voltage to rated frequency and voltage) produced by the generator into usable DC electric energy and by testing the needed actual power; the energy-conversion controller comprises a DC power-supply converter, an intermediate DC power storage and buffer unit, an AC power supply convertor and an intelligent energy management and control unit. The energy-conversion controller is connected to the diesel engine and the synchro generator respectively. The invention is capable to make the diesel engine operate under a condition of low speed and large torque stably, so as to ensure that the voltage and frequency of the output power supply from the system meet the load requirements, fuel consumption is lowered and emission of waste gas is reduced.

Description

【Technical field】 [0001] The invention relates to a diesel generator, in particular to a variable-speed diesel generator which can control the diesel engine to work stably in an economical state with low speed and high torque, so as to ensure that the voltage and frequency of the power output by the system meet the requirements of the load. 【Background technique】 [0002] Diesel generator set is a type of self-contained AC power station equipment, which is a small and medium-sized independent power generation equipment. It is widely used in mining and oil drilling platforms, road construction, field construction, national defense engineering and mobile power supply equipment such as internal combustion locomotives, port tire-type gantry container cranes and even factories and enterprises because of its flexibility, low investment, and ready-to-start characteristics. , large institutions, etc. [0003] Most of the electrical loads powered by diesel generator sets are constan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/14H02P9/04H02P9/30H02P9/48
Inventor 陈滨岛卢旭东王心愈
Owner 陈滨岛
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