【摘要】：隨著電力電子器件的不斷更新,凈化穩(wěn)壓電源的性能正在逐步提升,其在很多重要場合得到廣泛應用,如醫(yī)院、石油開采等�！笆濉逼陂g,國家將深海油氣開采作為重要戰(zhàn)略,因此,在相關政策的引導下,水下生產聯(lián)合測試系統(tǒng)以及水下生產控制系統(tǒng)的研究走上了快車道。數(shù)字式交流凈化穩(wěn)壓電源作為水下生產測試系統(tǒng)的重要組成部分,能夠實現(xiàn)穩(wěn)壓與調壓功能,保障生產測試順利進行,從而提高水下控制器的工作可靠性,減少不必要的損失。本文在傳統(tǒng)設計方法的基礎上,運用復合控制策略以及智能化操作模式有效提高電源系統(tǒng)的工作效率,實現(xiàn)參數(shù)在線監(jiān)測以及系統(tǒng)故障診斷。本論文的主要工作及創(chuàng)新點如下:(1)通過對比分析,建立了單相全橋逆變模型,推導出逆變模型傳遞函數(shù);采用數(shù)字PID與無差拍復合控制模式改善系統(tǒng)動靜態(tài)性能,其中數(shù)字PID算法用于提高電壓外環(huán)的控制精度,減小輸出電壓誤差,無差拍算法用于改善電流內環(huán)的動態(tài)性能。(2)電源系統(tǒng)硬件開發(fā)采用模塊化設計思想,部分電路給出原理圖設計過程,通過參數(shù)計算與仿真分析,不斷優(yōu)化硬件電路參數(shù),提高系統(tǒng)性能;系統(tǒng)軟件設計主要圍繞SPWM算法、串行通信、數(shù)據(jù)采集等模塊展開,模塊化的編程方式使程序管理更加高效;為實現(xiàn)電源本地測控與遠程監(jiān)控,系統(tǒng)設計了兩種工作模式:本地操作、遠程操作;本電源應用在聯(lián)合測試系統(tǒng)中,現(xiàn)場工作環(huán)境對電源設計提出很大挑戰(zhàn),為確保電源可靠運行,機柜設計時,充分考慮了防潮濕、防鹽霧等要求。(3)穩(wěn)壓電源調試分為模塊調試及整機調試,經調試處理后,排除系統(tǒng)故障,優(yōu)化設計方案;為驗證電源指標,根據(jù)相關標準制定系統(tǒng)測試方案,利用電網模擬器、防孤島負載器等設備,模擬電源工作狀態(tài),通過分析測試結果,判斷系統(tǒng)工作狀態(tài),從而有針對性地給出改進方案;電源系統(tǒng)設計,考慮EMC影響,并給出抗干擾措施。本數(shù)字式電源實現(xiàn)了多功能操作,兼?zhèn)鋫鹘y(tǒng)穩(wěn)壓電源的凈化穩(wěn)壓功能,隨著我國深海采油以及水下生產聯(lián)合測試系統(tǒng)的不斷發(fā)展,其應用將會越加廣泛。
[Abstract]:With the continuous renewal of power electronic devices, the performance of purifying and stabilizing power supply is improving step by step. It has been widely used in many important occasions, such as hospitals, oil exploitation and so on. During the 12th Five-Year Plan period, the state took deep-sea oil and gas exploitation as an important strategy. Therefore, under the guidance of relevant policies, the research of underwater production joint test system and underwater production control system has been on the fast track. As an important part of underwater production test system, digital AC purifying and stabilizing power supply can realize the function of voltage stabilization and voltage regulation, guarantee the smooth running of production test, improve the working reliability of underwater controller and reduce unnecessary loss. Based on the traditional design method, this paper uses compound control strategy and intelligent operation mode to effectively improve the working efficiency of power supply system, realize on-line monitoring of parameters and system fault diagnosis. The main work and innovations of this thesis are as follows: (1) through comparative analysis, the single-phase full-bridge inverter model is established, the transfer function of the inverter model is derived, and the dynamic and static performance of the system is improved by using digital PID and non-beat composite control mode. The digital PID algorithm is used to improve the control precision of the voltage outer loop, and the output voltage error is reduced, and the beat free algorithm is used to improve the dynamic performance of the current inner loop. (2) the modular design idea is adopted in the hardware development of the power system. Part of the circuit gives the schematic design process, through the parameter calculation and simulation analysis, continuously optimize the hardware circuit parameters, improve the system performance, the system software design mainly around the SPWM algorithm, serial communication, data acquisition and other modules, The modular programming method makes the program management more efficient. In order to realize local measurement and control of power supply and remote monitoring, the system designs two working modes: local operation, remote operation, and this power supply is applied in the joint test system. In order to ensure the reliable operation of the power supply, the design of the cabinet takes full account of the requirements of preventing moisture and salt mist. (3) the debugging of the steady voltage power supply is divided into module debugging and the whole machine debugging, after debugging and processing, In order to verify the power supply index, make the system test plan according to the relevant standards, use the power network simulator, anti-insular load device and other equipment, simulate the working state of the power supply, and analyze the test results, In order to judge the working state of the system, the improvement scheme is given, and the design of the power supply system takes into account the influence of EMC, and the anti-interference measures are given. The digital power supply realizes multi-function operation and has the purifying and stabilizing function of traditional power supply. With the continuous development of deep-sea oil production and underwater production joint test system in China, its application will be more and more extensive.
【學位授予單位】：上海工程技術大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE953;TM44

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