辅助动力装置喘振控制方法

苏三买; 常博博; 刘铁庚; 刘美凤

辅助动力装置喘振控制方法

1.
西北工业大学动力与能源学院,西安 71007
2.
中国航空工业集团公司中国航空动力机械研究所,湖南株洲 412002

基金项目: 航空科学基金(20100653006); APTD项目(APTD-0401-01)

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出版历程
- 收稿日期: 2010-09-30
- 修回日期: 2011-02-09
- 刊出日期: 2011-09-28

Research on control method of surge in auxiliary power unit

1.
School of Power and Energy, Northwestern Polytechnical University, Xi'an 71007
2.
China Aviation Powerplant Research Institute, Aviation Industry Corporation of China, Zhuzhou Hunan 412002, China

摘要

摘要: 以带负载压气机的辅助动力装置(APU)为研究对象,分析了其引气工作特点及负载压气机喘振机理,提出采用出口换算流量小于最小稳定工作流量的方法来控制负载压气机稳定工作,当APU出口换算流量小于最小稳定工作流量2%时,通过打开喘振控制阀(SCV)防止APU喘振.设计了比例积分微分(PID)控制器控制SCV开度,试车数据与相同条件下的逼喘仿真试验结果对比表明,所提出的方法既可避免负载压气机喘振,又可保证出口压力满足引气要求.
- 辅助动力装置 /
- 负载压气机 /
- 喘振 /
- 出口换算流量 /
- 喘振控制阀(SCV)
Abstract: The surge mechanism of auxiliary power unit (APU) with load compressor was analyzed.To ensure load compressor's working stability,the method of controlling exit corrected flow less than the minimum stable work flow was put forward.When load compressor exit flow is less than 2%,compared with minimum stable flow,the surge control valve (SCV) used to avoid surge was opened.Proportion-integral-differential (PID) controller was designed to control the opening angle of SCV so as to avoid surge of load compressor,and make exit pressure of air meet certain requirements.Compared with APU actual test data,numerical simulation results show that the method can be used to ensure the load compressor's working stability.
- auxiliary power unit /
- load compressor /
- surge /
- exit corrected flow /
- surge control valve(SCV)

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参考文献(12)

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