【摘要】：伴隨社會(huì)經(jīng)濟(jì)建設(shè)的迅猛發(fā)展,能源開發(fā)與利用的重要性日益提高。其中石油成為社會(huì)建設(shè)不可或缺的重要能源,其傳輸方式多為管道傳輸。在我國石油管道運(yùn)輸全面展開,網(wǎng)絡(luò)覆蓋全國各個(gè)地區(qū)�，F(xiàn)有石油管道中多采用漏磁檢測技術(shù)作為主要技術(shù)進(jìn)行無損探傷檢測,檢測工作主要應(yīng)用管道內(nèi)檢測器來完成。首先,提出了內(nèi)檢測器中用電設(shè)備的用電需求分析,分析出了檢測傳感器、各功能模塊控制芯片、數(shù)據(jù)存儲(chǔ)硬盤等用電設(shè)備所需要的電源提供的準(zhǔn)確穩(wěn)定的電壓與電流值。其次,提出了內(nèi)檢測器電源管理系統(tǒng)功能模塊的劃分。電池荷電狀態(tài)SOC估計(jì)(State of Charge)模塊負(fù)責(zé)由檢測采樣得到的電池電壓電流值與溫度值來配合SOC估計(jì)算法計(jì)算得到SOC值并修正。電源充放電模塊負(fù)責(zé)管理由外接220V、50Hz市電充電與自發(fā)電系統(tǒng)對(duì)電池充電電路。電源監(jiān)控模塊負(fù)責(zé)監(jiān)控電源管理系統(tǒng)中每個(gè)電流電壓轉(zhuǎn)換單元。當(dāng)出現(xiàn)異常時(shí),發(fā)出故障封鎖信號(hào),封鎖轉(zhuǎn)換單元,同時(shí)切斷用電回路,保護(hù)設(shè)備。電源監(jiān)控模塊同時(shí)負(fù)責(zé)電壓電流數(shù)據(jù)的采樣。電源能耗模塊負(fù)責(zé)計(jì)算檢測器處于不同模式時(shí)功耗與能耗的計(jì)算,然后基于不同模式下進(jìn)行能耗的預(yù)測,估算出內(nèi)檢測器可繼續(xù)運(yùn)行時(shí)長。模塊間的通信通過CAN總線完成。再次,提出了內(nèi)檢測器電源管理系統(tǒng)采用的SOC估計(jì)方法。充分考慮了電池充電倍率、溫度、自放電率、電池老化與循環(huán)、參數(shù)值測量誤差等因素對(duì)SOC估計(jì)的影響,并結(jié)合內(nèi)檢測器工作特點(diǎn)設(shè)計(jì)出SOC值的估計(jì)方法,其中包括SOC的計(jì)算與修正兩部分。最后,提出了內(nèi)檢測器工作模式的劃分和模式智能轉(zhuǎn)換控制策略。內(nèi)檢測器工作狀態(tài)模式分為：正常工作模式、電量不足模式、充電模式、待機(jī)模式四種模式。當(dāng)處于不同工作模式時(shí),內(nèi)檢測器調(diào)用各功能模塊的方式不同。針對(duì)每種模式的特點(diǎn),本文具體設(shè)計(jì)了調(diào)用四種功能模塊的方法。預(yù)想內(nèi)檢測器可能遇到的各種模式切換情況,提出由SOC值為判斷依據(jù)的模式智能轉(zhuǎn)換的具體控制策略。本論文充分考慮了內(nèi)檢測器長期在管道中運(yùn)行的實(shí)際工作特點(diǎn)。設(shè)計(jì)出了完整的內(nèi)檢測器電源管理系統(tǒng)控制方案,有效保證了內(nèi)檢測器檢測工作的安全、高效、穩(wěn)定進(jìn)行。
[Abstract]:With the rapid development of social economic construction, the importance of energy development and utilization is increasing day by day. Oil has become an indispensable and important energy source for social construction, and its transmission mode is mostly pipeline transmission. In our country oil pipeline transportation is carried out in an all-round way, the network covers all parts of the country. In the existing oil pipeline, magnetic flux leakage detection technology is used as the main technology for nondestructive flaw detection, and the detection work is mainly completed by the pipeline detector. Firstly, the demand analysis of the electric equipment in the inner detector is put forward, and the accurate and stable voltage and current value of the power supply needed by the electric equipment such as the detection sensor, the control chip of each function module and the data storage hard disk are analyzed. Secondly, the partition of the function module of the power management system of the inner detector is put forward. The SOC estimation (State of Charge) module of the charged state of the battery is responsible for calculating and correcting the SOC value by combining the voltage current value and the temperature value obtained from the detection and sampling with the SOC estimation algorithm. The charging and discharging module is responsible for managing the charging circuit of the battery from the external 220 V / 50 Hz charging and self-generating system. The power monitoring module is responsible for monitoring each current and voltage conversion unit in the power management system. When abnormal, send fault blocking signal, block the conversion unit, at the same time cut off the circuit, protect the equipment. The power monitoring module is responsible for the sampling of voltage and current data at the same time. The power consumption module is responsible for calculating the power consumption and energy consumption when the detector is in different modes. Then based on the prediction of energy consumption in different modes, the length of time that the inner detector can continue to run is estimated. The communication between modules is accomplished by CAN bus. Thirdly, the SOC estimation method used in the internal detector power management system is proposed. The effects of battery charging rate, temperature, self-discharge rate, battery aging and cycle, parameter measurement error on SOC estimation are considered. The estimation method of SOC value is designed according to the working characteristics of the inner detector. It includes the calculation and correction of SOC. Finally, the working mode partition of internal detector and the control strategy of mode intelligent conversion are proposed. The internal detector mode is divided into four modes: normal mode, insufficient mode, charging mode and standby mode. When working in different modes, the internal detector calls each functional module in different ways. According to the characteristics of each mode, the method of calling four functional modules is designed in this paper. In order to predict the various mode switching situations which may be encountered by the inner detector, a specific control strategy based on the SOC value for the intelligent mode conversion is proposed. In this paper, the practical characteristics of long-term operation of inner detector in pipeline are fully considered. A complete control scheme of the internal detector power management system is designed, which effectively ensures the safety, efficiency and stability of the internal detector detection.
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TE973.6;TM912

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