永磁同步電機特性測試系統(tǒng)設計與實現(xiàn)
發(fā)布時間：2018-10-30 20:51
【摘要】：在專業(yè)工程領域，，機械設備經常采用永磁同步電機作為驅動源以提供動力，永磁同步電機的性能則將直接影響到這些裝置的驅動穩(wěn)定性。而由于專業(yè)設備使用環(huán)境的復雜性和特殊性，對于電機特性測試系統(tǒng)的高精度、高穩(wěn)定性的要求使得以往的測試系統(tǒng)已經難以符合要求，迫切需要研制一種新的電機特性測試系統(tǒng)。 針對以上問題，為了對作為驅動設備的永磁同步電機的參數(shù)和特性進行高精度和自動化測量，開發(fā)了一套新的永磁同步電機測試系統(tǒng)。本課題便主要研究了針對永磁同步電機的自動化測試系統(tǒng)的設計與實現(xiàn)。 首先，詳細介紹了當前電機特性測試的基本原理和測試方法。針對電機的不同參數(shù)給出了相應的測試數(shù)學原理。然后由于扭矩-轉速特性對于永磁同步電機特性測試的至關重要性，文章單獨針對電機扭矩-轉速這一特性的測試進行了詳細的原理說明。這些為之后的系統(tǒng)硬件和軟件設計以及實驗研究奠定了堅實的理論基礎。 然后，從項目的實際需求出發(fā)，進行了電機特性測試系統(tǒng)的總體框架設計。具體描述了各個模塊的功能和相應的性能指標要求，并根據相應的指標要求進行了硬件設備的選型。之后又分別闡述了系統(tǒng)硬件平臺和軟件平臺的整體設計。在總體設計的基礎上，開展了詳細的硬件平臺設計，包括硬件各子模塊設計和電機控制設計。在實現(xiàn)了硬件設計之后，又分別從軟件的功能模塊設計、流程設計和界面設計等多個方面進行上位機軟件部分的詳細設計。其中軟件的關鍵功能模塊包括：電機控制與監(jiān)測模塊、數(shù)據采集模塊、數(shù)據分析曲線擬合模塊和方案自動化測試模塊等。 最后，在電機特性數(shù)據的擬合分析處理中，本文首先指出了傳統(tǒng)電機特性曲線擬合算法的最小二乘法一些不足之處，如在擬合過程中,多項式的階次需要試算，用的正交多項式指數(shù)太小會影響擬合度等。采用了移動最小二乘法這種新的算法來擬合電機曲線，這是因為移動最小二乘法可以很好地克服以上最小二乘法的缺陷，使擬合出來的試驗曲線更接近電機特性的真正實際曲線。這符合電機特性測試系統(tǒng)的項目需求，系統(tǒng)擬合出來的曲線更加接近電機本身真正的特性，使測試系統(tǒng)具有更高的精度和魯棒性。
[Abstract]:In the field of professional engineering, the permanent magnet synchronous motor (PMSM) is often used as the driving source to provide power, and the performance of PMSM will directly affect the driving stability of these devices. Because of the complexity and particularity of the professional equipment using environment, the requirement of high precision and high stability for the motor characteristic test system makes it difficult for the former test system to meet the requirements. It is urgent to develop a new testing system for motor characteristics. In order to measure the parameters and characteristics of permanent magnet synchronous motor (PMSM) as a driver, a new PMSM testing system is developed. This paper mainly studies the design and implementation of the automatic test system for permanent magnet synchronous motor (PMSM). Firstly, the basic principle and testing method of motor characteristic test are introduced in detail. According to the different parameters of the motor, the corresponding test mathematical principle is given. Then because of the importance of torque-speed characteristic to PMSM performance testing, this paper gives a detailed explanation of the principle of the testing of the torque-rotational speed characteristic of PMSM. These lay a solid theoretical foundation for the subsequent hardware and software design and experimental research. Then, according to the actual requirements of the project, the overall frame design of the motor characteristic testing system is carried out. The function of each module and the corresponding performance requirements are described in detail, and the selection of hardware equipment is carried out according to the corresponding requirements. After that, the whole design of the hardware platform and the software platform of the system are expounded respectively. On the basis of the overall design, the detailed hardware platform design, including the hardware sub-module design and motor control design. After the hardware design is realized, the software part is designed in detail from the following aspects: function module design, flow design, interface design and so on. The key function modules of the software include: motor control and monitoring module, data acquisition module, data analysis curve fitting module and scheme automation test module. Finally, in the analysis and processing of motor characteristic data, this paper first points out some shortcomings of the least square method of the traditional motor characteristic curve fitting algorithm, for example, in the process of fitting, the order of the polynomial needs to be tried. The orthogonal polynomial exponent used is too small to affect the fitting degree and so on. The moving least square method is used to fit the motor curve because the moving least square method can overcome the defects of the above least square method. The fitting test curve is closer to the real curve of motor characteristics. This is in line with the project requirements of the motor characteristic test system, and the curve fitted out by the system is closer to the real characteristics of the motor itself, which makes the test system have higher accuracy and robustness.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM341
本文編號：2301150
[Abstract]:In the field of professional engineering, the permanent magnet synchronous motor (PMSM) is often used as the driving source to provide power, and the performance of PMSM will directly affect the driving stability of these devices. Because of the complexity and particularity of the professional equipment using environment, the requirement of high precision and high stability for the motor characteristic test system makes it difficult for the former test system to meet the requirements. It is urgent to develop a new testing system for motor characteristics. In order to measure the parameters and characteristics of permanent magnet synchronous motor (PMSM) as a driver, a new PMSM testing system is developed. This paper mainly studies the design and implementation of the automatic test system for permanent magnet synchronous motor (PMSM). Firstly, the basic principle and testing method of motor characteristic test are introduced in detail. According to the different parameters of the motor, the corresponding test mathematical principle is given. Then because of the importance of torque-speed characteristic to PMSM performance testing, this paper gives a detailed explanation of the principle of the testing of the torque-rotational speed characteristic of PMSM. These lay a solid theoretical foundation for the subsequent hardware and software design and experimental research. Then, according to the actual requirements of the project, the overall frame design of the motor characteristic testing system is carried out. The function of each module and the corresponding performance requirements are described in detail, and the selection of hardware equipment is carried out according to the corresponding requirements. After that, the whole design of the hardware platform and the software platform of the system are expounded respectively. On the basis of the overall design, the detailed hardware platform design, including the hardware sub-module design and motor control design. After the hardware design is realized, the software part is designed in detail from the following aspects: function module design, flow design, interface design and so on. The key function modules of the software include: motor control and monitoring module, data acquisition module, data analysis curve fitting module and scheme automation test module. Finally, in the analysis and processing of motor characteristic data, this paper first points out some shortcomings of the least square method of the traditional motor characteristic curve fitting algorithm, for example, in the process of fitting, the order of the polynomial needs to be tried. The orthogonal polynomial exponent used is too small to affect the fitting degree and so on. The moving least square method is used to fit the motor curve because the moving least square method can overcome the defects of the above least square method. The fitting test curve is closer to the real curve of motor characteristics. This is in line with the project requirements of the motor characteristic test system, and the curve fitted out by the system is closer to the real characteristics of the motor itself, which makes the test system have higher accuracy and robustness.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM341
【參考文獻】
相關期刊論文 前1條
1 王艷芳;電機特性曲線擬合技術的探索[J];電動工具;1999年04期
本文編號：2301150
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