【摘要】：為了提高心臟起博器非接觸供電技術(shù)的可靠性,本文提出了一種新穎的應(yīng)用無線反饋穩(wěn)壓技術(shù)調(diào)節(jié)心臟病患者內(nèi)置供電濾波電路輸出電壓、電流的控制方法,使其輸出電壓保持穩(wěn)定,從而確保超級電容和心臟起搏器得到穩(wěn)定的供電電源。要實時地實施精確的電壓控制,考慮原、副邊線圈電感耦合系數(shù)變化、外置供電電源電壓和負(fù)載的變化,需要實時、準(zhǔn)確檢測整流濾波后的輸出電壓、電流值。因此,在基于混沌控制理論的基礎(chǔ)上,本文采用快速觀測整流濾波后的電壓和電流的雙渦卷相圖算法,可有效提高電路的檢測時間。所提出的控制方法其相圖可分解成8段,得到7個零極值點,當(dāng)檢測到這些零極值點時,根據(jù)零極值點的瞬時值得到對應(yīng)的電壓、電流平均值。仿真與實驗結(jié)果表明,采用上述控制方法,可使開關(guān)器件的響應(yīng)時間縮短為不超過1/2開關(guān)周期,從而驗證了所提出檢測算法的可行性與有效性。
[Abstract]:In order to improve the reliability of non-contact power supply technology for cardiac booster, this paper presents a novel control method for regulating the output voltage and current of the built-in power supply filter circuit in patients with heart disease by using wireless feedback voltage stabilizer. Keep its output voltage stable, thus ensuring a stable power supply to super capacitors and pacemakers. In order to implement accurate voltage control in real time, considering the change of inductance coupling coefficient of primary and secondary coils, and the variation of voltage and load of external power supply, it is necessary to accurately detect the output voltage and current value after rectifying and filtering in real time. Therefore, on the basis of chaos control theory, this paper adopts a two-vortex phase diagram algorithm for fast observation of voltage and current after rectifying and filtering, which can effectively improve the detection time of the circuit. The phase diagram of the proposed control method can be decomposed into 8 sections, and seven zero extremum points are obtained. When these zero extremum points are detected, the corresponding voltage and current mean values are obtained according to the instantaneous values of the zero extremum points. The simulation and experimental results show that the response time of the switching devices can be shortened to less than 1 / 2 of the switching cycle by using the control method, which verifies the feasibility and effectiveness of the proposed detection algorithm.
【作者單位】： 河南工程學(xué)院電氣信息工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(61305106) 河南省教育廳科學(xué)技術(shù)研究重點資助項目(14A510010) 鄭州市科技局民生科技進(jìn)步工程資助項目(131PZDGC136)
【分類號】：R318.04

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本文編號：2247603