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Precise control circuit of electro-hydraulic servo valve and gas turbine generator set

A technology of electro-hydraulic servo valve and control circuit, which is applied in the direction of gas turbine device, fuel control of turbine/propulsion device, engine components, etc. It can solve the problem that the electro-hydraulic servo valve cannot achieve precise control, and achieve the effect of precise control of the speed

Active Publication Date: 2019-08-23
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a precise control circuit of an electro-hydraulic servo valve and a gas turbine generator set to solve the technical problem that the existing electro-hydraulic servo valve cannot achieve precise control

Method used

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  • Precise control circuit of electro-hydraulic servo valve and gas turbine generator set

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Embodiment Construction

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention may be implemented in a variety of different ways defined and covered below.

[0025] Such as figure 1 As shown, the preferred embodiment of the present invention provides a precise control circuit for the electro-hydraulic servo valve, which is used to accurately control the current input to the electro-hydraulic servo valve, so that the size of the valve opening can be precisely adjusted to precisely control the flow into the generator set The amount of oil can finally achieve the purpose of accurately controlling the speed of the generator set. The precise control circuit of the electro-hydraulic servo valve includes a latch circuit 11, a D / A conversion circuit 12, a negative feedback control circuit 13, and a voltage stabilizing circuit 14. The latch circuit 11 is used to connect with an external control device, The D / A conve...

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Abstract

The invention discloses a precise control circuit of an electro-hydraulic servo valve and a gas turbine generator set. According to the precise control circuit of the electro-hydraulic servo valve, alatch circuit is used for carrying out data latching on a control signal input by an external control device, then a D / A conversion circuit converts the digital quantity control signals input by the external control device into analog quantity control signals, finally a negative feedback control circuit receives the analog quantity control signals transmitted by the D / A conversion circuit and precisely adjusts the current input to the electro-hydraulic servo valve, so that the size of the opening of a valve is accurately adjusted so as to accurately control the amount of oil flowing into the generator set, and finally the purpose of accurately controlling the rotating speed of the generator set is achieved. According to the precise control circuit, the precise control circuit of the electro-hydraulic servo valve can accurately control the electro-hydraulic servo valve, so that the acceleration, deceleration and pressure stabilization operation of the generator set can be realized. In addition, the accurate control circuit of the electro-hydraulic servo valve is mainly applied to the gas turbine generator set.

Description

Technical field [0001] The present invention relates to the technical field of electro-hydraulic servo valve control, in particular, to an accurate control circuit of an electro-hydraulic servo valve, and in addition, it also relates to a gas turbine generator set using the above-mentioned accurate control circuit of the electro-hydraulic servo valve. Background technique [0002] The electro-hydraulic servo valve is an important component of a gas turbine generator set. It can change the amount of oil flowing into the generator set by adjusting the size of the valve opening, thereby controlling the speed of the generator set. Therefore, the precise control of the electro-hydraulic servo valve has a decisive influence on the precise control of the generator set speed. [0003] However, there is currently no precise control method for the electro-hydraulic servo valve, and the current electro-hydraulic servo valve cannot realize the acceleration, deceleration and steady-state operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/26
CPCF02C9/263
Inventor 高昆刘敏温南方袁伟陈方李争超王山峰李明朱浩
Owner CHINA HANGFA SOUTH IND CO LTD
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