Small and medium power
The small and medium power inverter is one of the important links in the household independent AC photovoltaic system. Its reliability and efficiency are very important to popularize the photovoltaic system, effective energy and reduce the cost of the system. Therefore, the photovoltaic experts in various countries have been working hard to develop the inverter for household use so as to promote the industry to develop better and faster.
Multiple series inverter used in electric vehicle has many advantages. The variety of the output voltage vector of the series structure is greatly increased, the flexibility of the control is enhanced, the precision of the control is improved, and the fluctuation of the neutral point voltage of the motor is reduced. Bypass inverter can improve the charging characteristics and the regenerative braking control flexibility.
With the growing concern about the city environment, the development of electric vehicles has been a rare opportunity. In city traffic, electric bus due to load, high comprehensive benefit, become the object of priority development. Most electric buses adopt three phase AC motor. Because of the high power of the motor, the devices in the three-phase inverter need to bear the effect of high voltage and large current stress. The high dv/dt makes the electromagnetic radiation serious and needs good heat dissipation.