IGBT Modules - The Key Force In The New Energy Field
Under the background of actively promoting energy transformation around the world, the new energy field is booming, and IGBT modules, as key components, play an irreplaceable role. How does it help the development of new energy? Today, let's take a deeper look.
Part 1. Basics of IGBT modules IGBT (insulated gate bipolar transistor) module is a composite fully controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor), which combines the advantages of MOSFET's high input impedance and BJT's low conduction voltage drop. Its working principle is based on the control of gate voltage. By changing the gate voltage to control the conduction and shutdown of IGBT, the current and voltage in the circuit can be precisely controlled.
Part 2. Core applications of IGBT modules in new energy vehicles Motor drive system: In new energy vehicles, IGBT modules are the core of the motor control system. When the vehicle is driving, the DC output of the battery needs to be inverted into AC through the IGBT module to drive the motor. The performance of IGBT directly determines the efficiency and response speed of the motor, and affects the acceleration performance and cruising range of the car. Relevant data show that the energy conversion efficiency of the motor of new energy vehicles using high-performance IGBT modules can be improved by 5% - 10% compared with ordinary IGBT modules. In terms of acceleration performance, the acceleration time of 0 - 100km/h can be shortened by 1 - 2 seconds and the cruising range can be increased by 10% - 20% for models equipped with high-quality IGBT modules. This means that with the same battery capacity, the vehicle can run faster and farther.
Charging system: IGBT modules are indispensable for both AC slow charging and DC fast charging. During AC charging, it is responsible for converting the AC power of the power grid into DC power suitable for battery charging; during DC fast charging, it can achieve precise control of high voltage and high current, ensure fast and safe charging, shorten charging time, and improve user experience. Taking a popular new energy vehicle as an example, its DC fast charging system equipped with a high-performance IGBT module can charge the power from 30% to 80% in 30 minutes, while the charging time of ordinary IGBT modules is about 45 minutes, which greatly improves the charging efficiency.
Part 3. The key role of IGBT modules in renewable energy power generation
Wind power generation: After the wind turbine captures wind energy, the frequency and voltage of the generated electric energy are unstable. IGBT modules are used in converters to convert unstable electric energy into AC power that meets the requirements of the power grid. Through precise control, maximum power tracking can be achieved, the utilization rate of wind energy can be improved, and at the same time, the power can be smoothly integrated into the power grid to reduce the impact on the power grid.
Photovoltaic power generation: In photovoltaic power stations, IGBT modules are used in photovoltaic inverters. It converts the direct current generated by photovoltaic panels into alternating current to achieve docking with the power grid. And it can adjust the working state in real time according to conditions such as light intensity, improve power generation efficiency, reduce power generation costs, and help the large-scale application of photovoltaic power generation.
Part 4. Application of IGBT modules in the field of new energy storage As the proportion of new energy power generation increases, the importance of energy storage becomes increasingly prominent. In the energy storage system, the IGBT module is responsible for controlling the charging and discharging process of the battery. When charging, the electric energy of the power grid or power generation equipment is efficiently stored in the battery; when discharging, the electric energy in the battery is stably output to meet the power demand. Through precise charging and discharging control, the stability and reliability of the energy storage system are guaranteed, and the absorption capacity of new energy power is improved. With its outstanding performance, the IGBT module plays a key role in all aspects of the new energy field and is an important force in promoting the development of the new energy industry. With the continuous advancement of technology, it is believed that the IGBT module will play a greater role in the new energy field and help accelerate the realization of global energy transformation.
