杏鲍菇温室开关式空调的无静差模糊控制器设计与试验
针对杏鲍菇工厂化生产中开关式空调温度控制精度较低的问题,考虑到常规模糊控制存在静态误差、静态模糊规则不适用于多温室及不断变化的外界环境的不足,该文提出了一种新型基于模糊控制的自适应变论域控制策略.在控制过程中,2个子模糊控制器受区域决策环节控制切换运行,自适应环节以开关式空调的启停周期作为滚动优化单元.当系统完成1个启停周期后,自适应环节根据该周期2个子模糊控制器所属区域的超调量分别校正各自模糊论域的中心点.通过多组对照试验表明,在北方夏季不同温室、自然因素等多变量试验条件下,设定1℃的范围温差,含自适应环节的模糊控制器均表现出良好的动态特性,与传统静态规则模糊控制器的效果相比,超调量平均下降...
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| Published in | 农业工程学报 Vol. 29; no. 10; pp. 219 - 224 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
山东建筑大学信息与电气工程学院,济南 250101%北京理工大学,北京 100081
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2013.10.030 |
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| Summary: | 针对杏鲍菇工厂化生产中开关式空调温度控制精度较低的问题,考虑到常规模糊控制存在静态误差、静态模糊规则不适用于多温室及不断变化的外界环境的不足,该文提出了一种新型基于模糊控制的自适应变论域控制策略.在控制过程中,2个子模糊控制器受区域决策环节控制切换运行,自适应环节以开关式空调的启停周期作为滚动优化单元.当系统完成1个启停周期后,自适应环节根据该周期2个子模糊控制器所属区域的超调量分别校正各自模糊论域的中心点.通过多组对照试验表明,在北方夏季不同温室、自然因素等多变量试验条件下,设定1℃的范围温差,含自适应环节的模糊控制器均表现出良好的动态特性,与传统静态规则模糊控制器的效果相比,超调量平均下降6.5%,个别温室可下降15%以上,并保持在±5%以内.该方法在理论上实现了开关式空调的无静差模糊控制,试验中同样表现出了较好控制效果,且实现方法简单,普遍适用于开关式设备的温度控制. |
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| Bibliography: | greenhouse;air conditioning;fuzzy control;zero static error;pleurotus eryngii Zhan Pengfei 1 , Liu Zhaofeng 1 , Lü Hongli 1 , Zhao Lin 2 , Duan Peiyong 1 , Jia Guanggen 1 (1. School of Information & Electrical Engineering of Shandong Jianzhu University, Ji′nan 250101, China; 2. Beijing Institute of Technology, Beijing 10081, China) 11-2047/S The greenhouse which breeds industrialized eryngii has the characteristics of large number and small size. Among all the environmental indicators in the greenhouse, the temperature is undoubtedly the most important. Because of cost reasons, most of the factory multi-greenhouse eryngii breeding adopts switch air-conditioning as its temperature control equipment Although the cost of this temperature control equipment is high, control is simple; however, control accuracy is lower and cannot meet the demand for the production of crops demanding temperature requirements. In addition, the control devices between multiple greenhouses exhibit individual differences, and the various |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2013.10.030 |