本文選題：機(jī)載發(fā)動(dòng)機(jī)自適應(yīng)模型 + 智能發(fā)動(dòng)機(jī)控制　； 參考：《推進(jìn)技術(shù)》2017年06期

【摘要】：為解決分段線性化機(jī)載模型精度不足的問題,提出并設(shè)計(jì)了基于稀疏自動(dòng)編碼器的大包線、具有10輸入11輸出的發(fā)動(dòng)機(jī)機(jī)載自適應(yīng)模型,該模型由穩(wěn)態(tài)、動(dòng)態(tài)兩部分組合而成。首先基于一種新的相似準(zhǔn)則進(jìn)行建模所需樣本數(shù)據(jù)的壓縮,在保留主要信息的同時(shí),大大降低了數(shù)據(jù)量及采樣時(shí)間。用BP算法對(duì)簡化后的樣本數(shù)據(jù)進(jìn)行了機(jī)載模型穩(wěn)態(tài)部分的建模。針對(duì)機(jī)載模型動(dòng)態(tài)部分所需樣本數(shù)據(jù)量巨大、BP算法難以訓(xùn)練的問題,建立了基于稀疏自動(dòng)編碼器的動(dòng)態(tài)機(jī)載模型。引入準(zhǔn)穩(wěn)態(tài)判斷邏輯,在動(dòng)態(tài)過程使用稀疏自動(dòng)編碼器的動(dòng)態(tài)機(jī)載模型,在穩(wěn)態(tài)過程使用基于BP算法的穩(wěn)態(tài)機(jī)載模型。仿真結(jié)果表明,所建立的發(fā)動(dòng)機(jī)機(jī)載模型具有優(yōu)良的動(dòng)穩(wěn)態(tài)精度,且實(shí)時(shí)性好、存儲(chǔ)量小,其中動(dòng)態(tài)精度小于1%,穩(wěn)態(tài)精度小于0.6%,一次模型計(jì)算時(shí)間不大于1ms,模型存儲(chǔ)量不大于100kB。
[Abstract]:In order to solve the problem of insufficient accuracy of piecewise linearized airborne model, a large envelope model based on sparse automatic encoder with 10 inputs and 11 outputs is proposed and designed. The model is composed of steady and dynamic parts.Firstly, the compression of the sample data needed for modeling based on a new similarity criterion is carried out, which saves the main information and greatly reduces the data volume and sampling time.BP algorithm is used to model the steady-state part of the airborne model.The dynamic airborne model based on sparse automatic encoder is established to solve the problem that the sample data required in the dynamic part of the airborne model is huge and the BP algorithm is difficult to train.The quasi-steady-state judgment logic is introduced, the dynamic airborne model of sparse automatic encoder is used in the dynamic process, and the steady-state airborne model based on BP algorithm is used in the steady-state process.The simulation results show that the established airborne engine model has good dynamic and steady accuracy, good real-time performance and low storage capacity, in which the dynamic accuracy is less than 1, the steady-state accuracy is less than 0.6, the calculation time of the model is less than 1msand the storage capacity of the model is less than 100kB.
【作者單位】： 南京航空航天大學(xué)能源與動(dòng)力學(xué)院江蘇省航空動(dòng)力系統(tǒng)重點(diǎn)實(shí)驗(yàn)室;中國航空發(fā)動(dòng)機(jī)集團(tuán)公司航空動(dòng)力控制系統(tǒng)研究所;
【基金】：國家自然科學(xué)基金(51576096) 江蘇省“青藍(lán)工程” “333”人才工程
【分類號(hào)】：V233.7
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本文編號(hào)：1768971