中国科学院沈阳自动化研究所机构知识库
Advanced  
SIA OpenIR  > 信息服务与智能控制技术研究室  > 专利
专利名称: 变频式工业冷水机高精度快速控制方法
其他题名: High-precision fast control method for variable-frequency industrial water chiller
作者: 吴峰华; 于海斌; 苑明哲; 丛秋梅
所属部门: 信息服务与智能控制技术研究室
专利权人: 中国科学院沈阳自动化研究所
专利代理: 沈阳科苑专利商标代理有限公司 21002
专利国别: 中国
专利类型: 发明授权
专利状态: 有效
摘要: 本发明涉及一种变频式工业冷水机高精度快速控制方法,包括以下步骤:根据冷冻水温度与冷冻水温度设定值的偏差,确定冷水机的启动工况;如果冷水机处于工况1,冷水机不启动;如果冷水机处于工况3,根据定时加速方法得出压缩机转速控制量,来计算压缩机转速;如果冷水机处于工况2,利用预测控制和模糊PID相结合的方法来计算压缩机转速。本发明的工况切换机制保证了冷水机的整体运行效果;定时加速方法保证了制冷压缩机的控制适应膨胀阀的调节,避免了制冷系统启动后,冷冻水温的较大波动;预测控制使水温控制过程无超调,保证了水温以最快速度达到所要求的精度;模糊PID保证了水温控制精度达到±0.05℃。
英文摘要:

The invention relates to a high-precision fast control method for a variable-frequency industrial water chiller. The high-precision fast control method for the variable-frequency industrial water chiller comprises the following steps of: determining starting conditions of the water chiller according to the deviation between the temperature value of chilled water and the temperature set value of the chilled water if the water chiller is in a starting condition 1, not starting the water chiller if the water chiller is in a starting condition 3, working out a rotational speed control quantity of a compressor according to a definite time acceleration method, and working out the rotational speed of the compressor according to the rotational speed control quantity and if the water chiller is in a starting condition 2, working out the rotational speed of the compressor by utilizing a method of combining predictive control and fuzzy proportion integration differentiation (PID). The overall operation effect of the water chiller is ensured by the condition change-over mechanism of the high-precision fast control method for the variable-frequency industrial water chiller the regulation of a control adaptive expansion valve of a refrigeration compressor is ensured by the definite time acceleration method, and therefore, the higher fluctuation of the temperature of the chilled water is avoided after a refrigeration system is started a water temperature control process cannot overshoot by the predictive control, and therefore, the water temperature control precision reaches the required precision at the top speed and the water temperature control precision reaches +/-0.05 DEG C by the fuzzy PID.

是否PCT专利:
申请日期: 2012-07-02
公开日期: 2013-04-03
授权日期: 2014-11-26
专利申请号: CN201210223609.6
公布/公告号: CN103017429B
语种: 中文
产权排序: 1
内容类型: 专利
URI标识: http://ir.sia.cn/handle/173321/15561
Appears in Collections:信息服务与智能控制技术研究室_专利

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
CN201210223609.6授权.pdf(3160KB)专利--开放获取View Download
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[吴峰华]'s Articles
[于海斌]'s Articles
[苑明哲]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[吴峰华]‘s Articles
[于海斌]‘s Articles
[苑明哲]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: CN201210223609.6授权.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院沈阳自动化研究所 - Feedback
Powered by CSpace