【摘要】：為了解決高壓斷路器操動(dòng)機(jī)構(gòu)運(yùn)動(dòng)系統(tǒng)復(fù)雜、機(jī)械故障率高、運(yùn)動(dòng)控制性差以及智能化水平低等問(wèn)題，本文以126kV單斷口真空斷路器電機(jī)操動(dòng)機(jī)構(gòu)為研究對(duì)象，從電機(jī)操動(dòng)機(jī)構(gòu)的動(dòng)態(tài)特性分析、機(jī)械操作特性測(cè)試、電機(jī)結(jié)構(gòu)設(shè)計(jì)以及實(shí)際工程應(yīng)用等方面進(jìn)行了深入研究，在此基礎(chǔ)上提出了適用于高壓斷路器電機(jī)操動(dòng)機(jī)構(gòu)的非對(duì)稱繞組永磁擺角驅(qū)動(dòng)電機(jī)(Asymmetric Windings Permanent Magnet Swing AngleDriving Motor，AWPMSADM)。主要研究工作如下： （1）研究了電機(jī)操動(dòng)機(jī)構(gòu)與真空斷路器的運(yùn)動(dòng)配合特性和負(fù)載特性。建立了電機(jī)操動(dòng)機(jī)構(gòu)的運(yùn)動(dòng)分析模型，推導(dǎo)了真空斷路器絕緣拉桿與操動(dòng)機(jī)構(gòu)驅(qū)動(dòng)電機(jī)之間的運(yùn)動(dòng)對(duì)應(yīng)關(guān)系，，采用解析法計(jì)算了真空斷路器運(yùn)動(dòng)負(fù)載折算到驅(qū)動(dòng)電機(jī)主軸側(cè)的等效負(fù)載轉(zhuǎn)矩和等效轉(zhuǎn)動(dòng)慣量。通過(guò)分析得到了驅(qū)動(dòng)電機(jī)在斷路器分合閘操作過(guò)程中的轉(zhuǎn)角變化范圍、等效轉(zhuǎn)動(dòng)慣量變化趨勢(shì)以及負(fù)載峰值轉(zhuǎn)矩等參數(shù)。 （2）研究了不同轉(zhuǎn)子結(jié)構(gòu)驅(qū)動(dòng)電機(jī)的動(dòng)態(tài)特性。采用場(chǎng)-路-運(yùn)動(dòng)耦合法分析比較了埋入表貼型、燕尾卡槽型、直線內(nèi)嵌型和外V內(nèi)嵌型4種轉(zhuǎn)子結(jié)構(gòu)驅(qū)動(dòng)電機(jī)的機(jī)械運(yùn)動(dòng)特性和瞬態(tài)電磁特性，分析結(jié)果表明燕尾卡槽型轉(zhuǎn)子結(jié)構(gòu)驅(qū)動(dòng)電機(jī)的速度特性、電磁特性和機(jī)械可靠性相對(duì)較好。建立了真空斷路器電機(jī)操動(dòng)機(jī)構(gòu)虛擬樣機(jī)模型，分析了其動(dòng)力學(xué)特性并對(duì)仿真模型進(jìn)行了試驗(yàn)驗(yàn)證。 （3）進(jìn)行了真空斷路器與電機(jī)操動(dòng)機(jī)構(gòu)的機(jī)械操作特性試驗(yàn)。研制了燕尾卡槽型轉(zhuǎn)子結(jié)構(gòu)的驅(qū)動(dòng)電機(jī)樣機(jī)，建立了真空斷路器與電機(jī)操動(dòng)機(jī)構(gòu)的聯(lián)機(jī)試驗(yàn)平臺(tái)。完成了電機(jī)操動(dòng)機(jī)構(gòu)與真空斷路器在不同操作電壓下的空載分合閘操作試驗(yàn)、自動(dòng)重合閘試驗(yàn)、分合閘操作穩(wěn)定性試驗(yàn)以及恒定和區(qū)間調(diào)速試驗(yàn)。試驗(yàn)結(jié)果表明，電機(jī)操動(dòng)機(jī)構(gòu)驅(qū)動(dòng)真空斷路器動(dòng)作時(shí)的速度特性滿足相關(guān)要求，操作穩(wěn)定性較好，PWM電壓調(diào)節(jié)法能實(shí)現(xiàn)對(duì)電機(jī)操動(dòng)機(jī)構(gòu)運(yùn)動(dòng)的有效調(diào)控。 （4）提出了AWPMSADM的總體設(shè)計(jì)方案和啟動(dòng)-制動(dòng)非對(duì)稱繞組結(jié)構(gòu)。給出了AWPMSADM主要結(jié)構(gòu)參數(shù)的設(shè)計(jì)流程，對(duì)比分析了卡槽表貼型、分段卡槽表貼型、分段內(nèi)嵌Ⅰ型和分段內(nèi)嵌Ⅱ型4種轉(zhuǎn)子結(jié)構(gòu)AWPMSADM的動(dòng)態(tài)機(jī)械特性和電磁特性。設(shè)計(jì)了能明顯提高AWPMSADM啟動(dòng)特性并有效實(shí)現(xiàn)電氣制動(dòng)的非對(duì)稱啟動(dòng)-制動(dòng)繞組結(jié)構(gòu)，通過(guò)有限元仿真分析研究了不同繞組排布對(duì)AWPMSADM動(dòng)態(tài)特性的影響。最終得到AWPMSADM的總體設(shè)計(jì)方案。
[Abstract]:In order to solve the problems of complex motion system, high mechanical failure rate, poor motion control and low intelligent level of the high voltage circuit breaker operating mechanism, this paper takes the motor operating mechanism of 126kV single-break vacuum circuit breaker as the research object. The dynamic characteristic analysis of motor operating mechanism, the test of mechanical operation characteristic, the design of motor structure and the application of practical engineering are studied in this paper. On the basis of this, a permanent magnet swing angle drive motor (Asymmetric Windings Permanent Magnet Swing AngleDriving Motor,AWPMSADM) with asymmetrical windings for the motor operating mechanism of high voltage circuit breaker (HV circuit breaker) is proposed. The main research work is as follows: (1) the motion coordination and load characteristics of the motor operating mechanism and vacuum circuit breaker are studied. The motion analysis model of the motor operating mechanism is established, and the motion correspondence between the insulation pull rod of the vacuum circuit breaker and the driving motor of the operating mechanism is deduced. The equivalent load torque and equivalent moment of inertia of vacuum circuit breaker to drive motor shaft side are calculated by analytical method. The range of angle variation, the changing trend of equivalent moment of inertia and the peak torque of load are obtained by analyzing the driving motor in the process of circuit breaker opening and closing. (2) the dynamic characteristics of motor driven by different rotor structures are studied. Field-path-motion coupling method is used to analyze and compare the mechanical motion characteristics and transient electromagnetic characteristics of four kinds of rotor-driven motors with embedded surface type, swallows-tail type, straight-line embedded type and outer V-embedded type, and four kinds of rotor-driven motors are analyzed and compared. The analysis results show that the speed characteristics, electromagnetic characteristics and mechanical reliability of the motor driven by the slot rotor structure of the swallow tail are relatively good. The virtual prototype model of the motor operating mechanism of vacuum circuit breaker is established and its dynamic characteristics are analyzed and the simulation model is tested and verified. (3) the mechanical operation characteristics of vacuum circuit breaker and motor operating mechanism are tested. An on-line test platform of vacuum circuit breaker and motor operating mechanism has been established based on the prototype of the driving motor with the slot rotor structure of the swallow tail. The no-load switching test, automatic reclosing test, opening and closing stability test and constant and interval speed regulation test of the motor operating mechanism and vacuum circuit breaker under different operating voltages were completed. The experimental results show that the speed characteristics of the motor driving vacuum circuit breaker meet the relevant requirements and the operation stability is good. The PWM voltage regulation method can effectively control the movement of the motor operating mechanism. (4) the overall design scheme and the start-up-braking asymmetrical winding structure of AWPMSADM are presented. The design flow of the main structural parameters of AWPMSADM is given, and the dynamic mechanical and electromagnetic characteristics of four rotor structures (AWPMSADM) are compared and analyzed, such as slot table mounting, piecewise embedded type 鈪

本文編號(hào)：2456645