Study And Design Of Accelerating And Steadying Control Device For Three Phase Asynchronism Gyro Motor

Along with the development of modern weapon , launching missile without position and beating target fleetness is possible. To obtain the orientation and direction speedily is paid more and more attention in weapon system. Top direction finder is an equipment to obtain direction speedily, and it is the core element of the system. The performance of direction finder influences the precision of the whole system directly,and its performance depends on the magnitude and stability of momentum moment. In the paper we study the accelerating and stabilization control of the top motor. The main intention is to design a choiceness top motor supply , to make it possible that the top can work well with minishing excursion and accelerating time and augmenting stabilization precision.The system of this dissertation takes a practical project as a background .In the task, the dsp parts is used to achieve digital control ,and SPWM or SVPWM pulse width modulation is choosed. We summarize the study actuality of inverter in this paper as general. SPWM is the usual method of obtaining three phase voltage, and we introduce it as emphases.We give the whole design of the accelerating and steadying control device of the top motor. We also introduce the design detail of convert circuit and control circuit. In the end the realizing method of SPWM and SVPWM is analyzed.In the task practicality is prepared, and it is proved through imitation that the design can bring the expectant controlling signal.The equipment can control the speed of top motor accurately, and the target accords with the system.