【摘要】：信號發(fā)生器又稱為信號源，常用作測試電子設(shè)備的儀器�，F(xiàn)代電氣設(shè)備對信號發(fā)生器的要求除了高穩(wěn)態(tài)精度、高可靠性、高質(zhì)量的輸出波形外，還要求其具有優(yōu)異的帶載能力。通常采用信號發(fā)生器與功率放大器相結(jié)合的方式，來完成大功率輸出要求。隨著數(shù)字信號處理器（DSP）、大功率電力電子技術(shù)的蓬勃發(fā)展，本文提出基于DSP、采用電力電子裝置對電能進行變換的大功率信號發(fā)生器。該大功率信號發(fā)生器能輸出高質(zhì)量的正弦波、三角波、方波、鋸齒波等典型信號，帶載能力非常強，而且還能根據(jù)需要進一步拓展。 本文的第一工作是進行大功率信號發(fā)生器系統(tǒng)的理論分析和初步設(shè)計。首先給出包括變壓器、整流器、功率放大器等部分的主電路拓撲結(jié)構(gòu)圖，，詳細地討論和分析控制策略和工作原理；然后進行主回路元器件選型，給出主回路主要參數(shù)設(shè)計的詳細過程；最后完成控制系統(tǒng)的硬件設(shè)計和軟件設(shè)計。在控制算法上，三相PWM整流器采用電壓外環(huán)和電流內(nèi)環(huán)的雙環(huán)控制算法、功率放大器采用簡單的輸出電壓閉環(huán)控制算法，并進行了仿真驗證。 本文在第一步工作的基礎(chǔ)上制作了大功率信號發(fā)生器的樣機，試驗結(jié)果表明樣機達到了預(yù)期目標。本文研制的高標準高性能的大功率信號發(fā)生器，具有很好的實用價值和現(xiàn)實意義。
[Abstract]:A signal generator, also known as a signal source, is often used as an instrument for testing electronic equipment. In addition to the high steady precision, high reliability and high quality output waveform, the modern electrical equipment requires the signal generator to have excellent load capacity. Signal generator and power amplifier are usually used to achieve high power output. With the rapid development of digital signal processor (DSP),) high-power electronics technology, this paper presents a high-power signal generator based on DSP,. The high power signal generator can output high quality sinusoidal wave, triangle wave, square wave, sawtooth wave and other typical signals. The first work of this paper is the theoretical analysis and preliminary design of the high power signal generator system. First, the main circuit topology diagram including transformer, rectifier, power amplifier and so on is given, and the control strategy and working principle are discussed and analyzed in detail. Then the main circuit components are selected, and the detailed process of the main circuit parameters design is given. Finally, the hardware design and software design of the control system are completed. In the control algorithm, the three-phase PWM rectifier adopts the double loop control algorithm of voltage outer loop and current inner loop, and the power amplifier adopts simple output voltage closed loop control algorithm, and the simulation is carried out. In this paper, the prototype of high power signal generator is made on the basis of the first step. The experimental results show that the prototype has reached the expected goal. The high-standard and high-performance high-power signal generator developed in this paper has good practical value and practical significance.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM935

【相似文獻】

相關(guān)期刊論文 前10條

1 黎國棟;信號發(fā)生器專業(yè)基礎(chǔ)知識問答[J];上海計量測試;2004年05期

2 李翠華;;信號發(fā)生器的設(shè)計[J];科技廣場;2009年01期

3 奚耀華 ,胡永豐;幾種電磁式信號發(fā)生器[J];微特電機;1975年03期

4 高福光;;《模擬心電信號發(fā)生器》制作中的一些體會[J];醫(yī)療器械;1983年03期

5 李剛;張麗萍;呂楊生;;多功能心電信號發(fā)生器[J];醫(yī)療衛(wèi)生裝備;1989年04期

6 陳朝陽;信號發(fā)生器設(shè)計與應(yīng)用的考慮[J];國外電子測量技術(shù);1994年02期

7 趙相s

本文編號：2421739