Because the analytical analysis of nonlinear systems is very difficult, digital simulation is usually used, but digital simulation methods are difficult to obtain regular understanding. In particular, it is impossible to design corresponding control laws for the system. When designing the system stator current regulator, ignore synchronization. The damper winding resistance of the motor is simplified by some means, and the simplified model of the stator winding of the synchronous motor is obtained. However, this method causes a large error. Based on the analysis of the operating characteristics of the system, the synchronous motor d and q are connected to the inverter. The axis variables are decomposed into low-frequency components and high-frequency components, respectively. The equivalent circuit model and small disturbance analysis model for the steady-state and steady-state process analysis of synchronous motors for AC power supply are established. Applying this model, this paper proposes A new approach to stator current regulator design. The analysis and basic assumptions of the system are given to the synchronous motor powered by the inverter. In the steady state and steady-state operation, the stator voltage and stator current are non-sinusoidal, that is, contain the fundamental wave and rich harmonics. The calculation of the stator voltage of a 4000 kW synchronous motor under the power supply of a 6-pulse AC power supply is the fundamental waveform of the stator. From the spectrum diagram, the amplitude of the 65, 67, 77, and 79 harmonic components in the stator voltage spectrum distribution is the largest. The amplitude of the same harmonic current generated by them is also the largest, and the amplitude of other subharmonic components is small. If the smaller harmonic components are neglected, the stator voltage can be considered as the equivalent circuit model and current of the inverter-synchronous motor system. The regulator design flow consists of a fundamental wave and higher harmonics several tens of times higher than the fundamental wave. In the normal operation state, the d and q components of the fundamental voltage and current of the synchronous motor connected to the inverter are constant or slow (low frequency), and the d and q components of the stator higher harmonic voltage and current. It is a high frequency pulse. The rotor excitation current also has two components, one is a constant or slow (low frequency) variation component, its larger amplitude, and the other is a high frequency pulse component with a small amplitude. Since the frequency of change of the two components is far apart, when the theoretical analysis of the AC synchronous motor is performed, the low-frequency component and the high-frequency component of the d and q axes of each variable in the synchronous motor can be processed separately. The open-ended design of the Split Cable Wrap is easy to remove and install, and at the same time, the same size can cover a wider range and is not easy to be deformed. The Split Cable Wrap is made of environmentally friendly materials with flame-retardant and abrasion-resistant properties. Among them, the PPS Self-closing Wrap braided with PPS material also has excellent creep resistance, thermal stability and chemical stability.Self Closing Wrap is suitable for all kinds of wire harnesses, wire equipment, all kinds of tubes, and also provides strong protection in automobiles, machinery and equipment, railroads, light rails and so on. Liansi Electronics Co., Ltd understand that different environments and applications require different solutions. That's why we offer self-closing coiled wire made from PET, PPS and Nomex materials, each of which has its own unique properties to meet the specific needs of our customers. Whether it's high temperature resistance, chemical stability, or superior durability, our line of self-closing coils has you covered. PET Self-closing Wrap Sleeve ,PP Self-closing Wrap Sleeve ,S6 Self-closing Wrap Sleeve ,Nomex Self-closing Wrap Sleeve Dongguan Liansi Electronics Co.,Ltd , https://www.liansisleeve.com