High-pressure alternating-current variable-pitch system based on KEB driver

A high-voltage AC and pitch system technology, applied in wind turbine control, engine, engine functions, etc., can solve problems such as unfavorable installation and control of DC pitch system, and achieve safe and stable charging/discharging management unit characteristics, voltage can be adjusted. Control and cost saving effect

Inactive Publication Date: 2019-10-15
SUZHOU NENGJIAN ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: The purpose of the invention is to provide a high-voltage AC pitch system based on the KEB driver, which solves the problems that are not conducive to installation and control in the DC pitch system

Method used

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  • High-pressure alternating-current variable-pitch system based on KEB driver

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Embodiment

[0030] Such as figure 1 The high-voltage AC pitch system based on the KEB driver shown includes the system safety chain 1, the main control unit 2, the main communication unit 3, the first sub-communication unit 4, the second sub-communication unit 5, and the pitch axis control cabinet one 6 , Pitch axis control cabinet two 7 and pitch axis control cabinet three 8. The system safety chain 1 is set between the main control unit 2 and the pitch axis control cabinet 1-6, the main control unit 2 and the pitch axis control cabinet Between two and 7 and between the main control unit 2 and the pitch axis control cabinet 318, the main control unit 2 communicates with the pitch axis control cabinet 6 through the main communication unit 3. The pitch axis control cabinet 6 It communicates with the pitch axis control cabinet two 7 through the first sub-communication unit 4, and the pitch axis control cabinet one 6 and the pitch axis control cabinet two 7 are connected by a signal line and ...

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Abstract

The invention relates to a high-pressure alternating-current variable-pitch system based on a KEB driver, and belongs to the technical field of renewable clean energy. The high-pressure alternating-current variable-pitch system comprises a system safety chain, a main control unit, a main communication unit, a first sub-communication unit, a second sub-communication unit, a first variable-pitch shaft control cabinet, a second variable-pitch shaft control cabinet and a third variable-pitch shaft control cabinet; and the system safety chain is arranged between the main control unit and the firstvariable-pitch shaft control cabinet, between the main control unit and the second variable-pitch shaft control cabinet and between the main control unit and the third variable-pitch shaft control cabinet. The high-pressure alternating-current variable-pitch system based on the KEB driver uses the KEB intelligent driver 19P6, and each blade completes pitch varying and safe control through a special pitch varying drive system. On the aspect of design, a modular design concept is adopted, and the number of components and the space of the pitch varying cabinets are greatly reduced. On the aspectof electric control, on the condition that the requirement and the safety of the variable-pitch system are completely met, a control loop device is greatly simplified, and maintenance is more convenient to achieve.

Description

Technical field [0001] The invention belongs to the technical field of renewable clean energy, and specifically relates to a high-voltage AC pitch system based on a KEB drive. Background technique [0002] As fossil energy such as coal and petroleum is declining globally, countries around the world have turned their attention to the research, development and utilization of renewable clean energy. Wind power has become the focus of my country’s new energy strategy. Wind power is the most developed in recent years. One of the green energy sources that is fast and has large-scale development and utilization. At present, wind turbines are developing in the direction of large-scale, variable pitch and variable speed and constant frequency. [0003] The pitch control system is one of the core components of wind turbines. As the power of wind turbines continues to increase, an intelligent variable with variable pitch functions such as inverter, PLC control, backup power supply charging an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00F05B2260/76F05B2270/602Y02E10/72
Inventor 孙志国赵洪岩陈吉帅
Owner SUZHOU NENGJIAN ELECTRIC
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