本文選題：溫度補(bǔ)償 + 誤差分析�。� 參考：《計(jì)算機(jī)仿真》2016年02期

【摘要】：在鼓風(fēng)機(jī)溫度優(yōu)化控制的研究中,針對(duì)鼓風(fēng)機(jī)在非標(biāo)準(zhǔn)環(huán)境工況下,由于特性曲線偏移而導(dǎo)致鼓風(fēng)機(jī)實(shí)際工況點(diǎn)偏移和出現(xiàn)喘振問題,提出鼓風(fēng)機(jī)溫度補(bǔ)償優(yōu)化模型,可以有效的校正因溫度變化發(fā)生偏移的鼓風(fēng)機(jī)工作點(diǎn),同時(shí)防止喘振放風(fēng)。首先根據(jù)風(fēng)機(jī)相似原理推導(dǎo)出風(fēng)量風(fēng)壓修正系數(shù),對(duì)鼓風(fēng)機(jī)性能參數(shù)進(jìn)行修正;再結(jié)合熱力學(xué)理論分析鼓風(fēng)機(jī)性能特性曲線隨環(huán)境溫度的變化規(guī)律,引入變量因子T,推導(dǎo)出風(fēng)機(jī)轉(zhuǎn)速與環(huán)境溫度的數(shù)學(xué)關(guān)系,根據(jù)環(huán)境溫度實(shí)際變化情況,提出一種分級(jí)溫度補(bǔ)償策略。求解模型得到補(bǔ)償后鼓風(fēng)機(jī)工作點(diǎn)和喘振線方程。最后,根據(jù)溫度補(bǔ)償模型提出了防喘振應(yīng)用方案。仿真和應(yīng)用節(jié)能結(jié)果表明,改進(jìn)方法能有效補(bǔ)償鼓風(fēng)機(jī)特性曲線偏移,節(jié)能效果明顯。
[Abstract]:In the study of optimal control of blower temperature, an optimized model of blower temperature compensation is put forward to solve the problem of blower temperature offset and surge due to the deviation of characteristic curve under non-standard environmental conditions. It can effectively correct the working point of blower due to temperature change and prevent surge and air release. First, according to the principle of fan similarity, the air volume air pressure correction coefficient is derived, and the performance parameters of the blower are revised. Then, the variation law of the blower performance characteristic curve with the ambient temperature is analyzed with the thermodynamic theory. By introducing variable factor T, the mathematical relationship between fan speed and ambient temperature is deduced. According to the actual change of ambient temperature, a kind of graded temperature compensation strategy is put forward. The equations of the working point and surge line of the compensated blower are obtained by solving the model. Finally, according to the temperature compensation model, the anti-surge application scheme is proposed. The results of simulation and application show that the improved method can effectively compensate the deviation of blower characteristic curve, and the energy saving effect is obvious.
【作者單位】： 天津理工大學(xué)天津市復(fù)雜控制理論與應(yīng)用重點(diǎn)實(shí)驗(yàn)室;天津理工大學(xué)自動(dòng)化學(xué)院;
【基金】：天津市科技支撐計(jì)劃項(xiàng)目(13ZCZDGX03800,10ZCKFGX03400) 天津市自然科學(xué)基金項(xiàng)目(09JCZDJC23900)
【分類號(hào)】：TH44

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