Free piston Stirling power generation system and control method

A power generation system, Stirling engine technology, applied in the field of free piston Stirling power generation system and control, to achieve seamless switching, improve reliability and safety, and reduce costs

Active Publication Date: 2016-05-04
SHANGHAI MICROPOWERS
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Problems solved by technology

[0006] However, since the linear generator combined with the free-piston Stirling power generation system is a very complex and highly coupled system, in order to give full play to the advantages of the two, it is necessary to effectively avoid the collision problem caused by the overrun of the piston stroke,

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  • Free piston Stirling power generation system and control method

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[0056] In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the specific embodiments of the present invention will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings and obtained Other embodiments.

[0057] In order to make the drawings concise, each figure only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product as a product. In addition, in order to make the drawing concise and easy to understand, the connection of the thin lines in the figure represents the electrical connection, and the hollow arrow line represents the connection of the signal.

[0058] In the embodiments of the present invention, refer to figure 1 As sh...

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Abstract

The present invention provides a free piston Stirling power generation system and a control method. The system comprises a Stirling engine, a linear generator, a digital signal processor, a rectifier bridge, and a power switch. The power switch comprises a control converter and an inverter. The Stirling engine is connected to the linear generator which communicates with the input end of the rectifier bridge. The digital signal processor controls the rectifier bridge and the start or stop of the control converter and the inverter according to the received temperature and motion directions and the comparison of current and voltage values and preset values, the system start, power generation or stop is realized. The control method comprises data detection and the control of a system state according to the detected data, an electric energy two-way switching control function can be realized, the smooth switching of a power generation state is achieved, an engine collision problem is solved, and system output electric energy is converted into electric energy which is accordance with a grid-connected standard.

Description

technical field [0001] The invention relates to the technical field of Stirling engines, in particular to a free-piston Stirling power generation system and a control method. Background technique [0002] A linear generator is an electrical device that uses the linear motion of the mover to directly generate electric energy or uses electric energy to directly generate linear motion. The linear generator has the advantages of fast response, high efficiency, and high precision, and has become the current research field in the field of motor and its control hotspot. [0003] The Stirling engine generates power by expanding the gas when it is heated and compressing it when it is cooled. This is an external combustion engine that burns the fuel continuously, the evaporated expanded hydrogen (or helium) is used as the power gas to move the piston, and the expanded gas is cooled in the air-conditioning chamber, and this cycle process is repeated. Compared with internal combustion...

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Application Information

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IPC IPC(8): H02P9/00
CPCH02P9/007
Inventor 范伟成彭小方黄文新江兵潘雪许幼奇杨梦懿梁伟青
Owner SHANGHAI MICROPOWERS
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