【摘要】：在對功率等級、調速性能以及可靠性要求較高的場合,傳統(tǒng)的三相電機由于其本身的限制,無法滿足實際需求,而多相電機因其具有可低壓實現(xiàn)大功率、轉矩脈動較小以及可靠性高等優(yōu)點,可廣泛地應用于各種高要求場合,例如船舶電力推進系統(tǒng)以及電動車牽引系統(tǒng)等。由于市場的需求,越來越多的學者投入到多相電機驅動控制系統(tǒng)的研究中。本文以雙三相雙Y型相移30°繞組的永磁同步電機為研究對象,對其控制策略進行了深入研究。論文首先介紹了雙三相永磁同步電機在自然坐標系下的數(shù)學模型,然后通過雙d-q變換以及空間電壓矢量解耦變換,得到其在旋轉坐標系下的兩種數(shù)學模型。并在空間電壓矢量解耦的基礎上,研究了六相系統(tǒng)的空間電壓矢量分布以及最大四矢量SVPWM調制技術,在此基礎上,研究了雙三相永磁同步電機的矢量控制策略,并在Matlab/Simulink系統(tǒng)中對其進行仿真研究。接下來針對電機運行時定子諧波電流較大的問題,在z1-z2子平面中引入了比例諧振調節(jié)器(PR調節(jié)器),并通過仿真驗證了其有效性。其次,針對SVPWM控制策略中得到的PWM波形不對稱以及在每個PWM周期內功率器件開關次數(shù)較多的問題,提出了雙三相永磁同步電機雙零序注入PWM控制策略,并在Matlab/Simulink系統(tǒng)中搭建了仿真模型驗證了該控制策略的有效性。最后,給出基于TMS320F28335的雙三相永磁同步電機控制系統(tǒng)的設計方案,并研制出一套雙三相永磁同步電機驅動系統(tǒng)硬件平臺,在該平臺上編寫實驗程序,對上述控制策略進行加載實驗,實驗結果與仿真結果相符,證明了上述控制策略的有效性及實用性。
[Abstract]:The traditional three-phase motor can not meet the actual demand because of its own limitations, while the multi-phase motor can achieve high power at low voltage because of its low voltage and high power because of its high demand for power grade, speed regulation and reliability, and the traditional three-phase motor is unable to meet the actual demand due to its own limitations. Due to the advantages of small torque ripple and high reliability, it can be widely used in various high demand situations, such as marine electric propulsion system and electric vehicle traction system. Due to the demand of the market, more and more scholars are engaged in the research of multiphase motor drive control system. In this paper, the control strategy of permanent magnet synchronous motor (PMSM) with double phase and double Y phase shifting 30 擄windings is studied. In this paper, the mathematical model of double three phase permanent magnet synchronous motor in natural coordinate system is introduced, and then two kinds of mathematical models are obtained by double d-q transformation and space voltage vector decoupling transformation. Based on the decoupling of space voltage vector, the space voltage vector distribution and the maximum four-vector SVPWM modulation technology of six-phase system are studied. Based on this, the vector control strategy of dual-three-phase permanent magnet synchronous motor (PMSM) is studied. And it is simulated in Matlab/Simulink system. Secondly, the proportional resonant regulator (PR) is introduced into the z1-z2 subplane to solve the problem of large stator harmonic current in the motor running, and its effectiveness is verified by simulation. Secondly, aiming at the asymmetry of PWM waveform obtained from SVPWM control strategy and the large number of switching times of power devices in each PWM cycle, a double-zero-sequence injection PWM control strategy for dual-phase PMSM is proposed. A simulation model is built in Matlab/Simulink system to verify the effectiveness of the control strategy. Finally, the design scheme of dual three phase permanent magnet synchronous motor control system based on TMS320F28335 is given, and a hardware platform of dual three phase permanent magnet synchronous motor drive system is developed. The experimental results are in agreement with the simulation results, which prove the effectiveness and practicability of the control strategy.
【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】：2017
【分類號】：TM341

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本文編號：2340571