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Integrated structure of servo driver and backup power supply for pitch control system

A technology of servo drive and backup power supply, applied in control system, emergency power supply arrangement, AC motor control and other directions, can solve the problems of occupying wheel hub space, complicated connecting lines, many fault points, etc., to achieve firm installation, simplified connection, and internal saving. effect of space

Inactive Publication Date: 2014-07-16
SHANGHAI ELECTRICGROUP CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the current pitch control system adopts a structure in which the servo drive and the backup power supply module exist independently, such as figure 1 As shown, each of the three pitch servo drives is equipped with an independent backup power system, which is placed in the hub of the fan. The two key components of the drive and the backup power are designed independently and then used in combination. The connection lines are complicated and costly. There are many failure points in the cabin environment, and two independent sub-modules take up valuable hub space

Method used

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  • Integrated structure of servo driver and backup power supply for pitch control system
  • Integrated structure of servo driver and backup power supply for pitch control system
  • Integrated structure of servo driver and backup power supply for pitch control system

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing.

[0031] see figure 2 , the integrated structure of the pitch control system servo driver and backup power supply of the present invention includes a three-phase uncontrolled rectifier circuit 1, a three-phase bridge inverter circuit 2, a DC / DC bidirectional switching circuit 3, a backup power supply 4, a first Voltage and current detection circuit 5, second voltage and current detection circuit 6, first drive protection circuit 7, second drive protection circuit 8, DSP9, DC / DC auxiliary power supply 10, AC / DC auxiliary power supply 11 and single pole double throw switch S, in:

[0032] The input end of the three-phase uncontrolled rectification circuit 1 receives three-phase alternating current, and its output end is respectively connected to the respective input ends of the three-phase bridge inverter circuit 2, the DC / DC bidirectional switching circuit 3 and the first vo...

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Abstract

The invention discloses an integrated structure of a servo driver and a backup power supply for a pitch control system. The integrated structure of the servo driver and the backup power supply for the pitch control system comprises a three-phase uncontrolled rectification circuit, a three-phase bridge inverter circuit, a DC / DC two-way switching circuit, the backup power supply, a first voltage and current detection circuit, a second voltage and current detection circuit, a first drive protection circuit, a second drive protection circuit, a DSP, a DC / DC auxiliary power supply, an AC / DC auxiliary power supply and a sing-pole double-throw switch. Through the integrated design carried out on the servo driver and the backup power supply on a hardware structure, the compactness of the system is improved, the volume of the system is reduced, the internal space of a hub is saved, cost is lowered, and connection fault points are reduced.

Description

technical field [0001] The invention relates to the field of electric variable pitch wind power, in particular to an integrated structure of a servo driver and a backup power supply. Background technique [0002] Commonly used electric pitch control systems are generally composed of servo motor drivers, backup power systems, servo motors, pitch controllers, and motor detection modules. The structure of the current pitch control system adopts a structure in which the servo driver and the backup power supply module exist independently, such as figure 1 As shown, each of the three pitch servo drives is equipped with an independent backup power system, which is placed in the hub of the fan. The two key components of the drive and the backup power are designed independently and then used in combination. The connection lines are complicated and costly. There are many points of failure in the nacelle environment, and two independent sub-modules take up valuable hub space. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02P27/06
Inventor 李钊杨恩星辛绍杰阙春兰
Owner SHANGHAI ELECTRICGROUP CORP
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