TI 10KW三相三电平并网太阳能逆变器参考设计TIDA－01606

TI公司的TIDA-01606是10KW三相三电平并网太阳能逆变器参考设计,额定和最大输入电压分别是800VDC和1000VDC,在连接400-VAC 50/60-Hz电网时输出功率最大为0-kW/10-kVA,基于高压1200V SiC MOSFET全桥逆变器的效率高达98.5%,满负载时输出电流THD小于2%,采用AMC1301隔离电流检测用于负载电流检测,而TMS320F28379D控制卡用来数字控制.参考设计TIDA-01606采用了增强型隔离栅极驱动器SO5852S,栅极和功率驱动器UCC5320,32位MCU TMS320F28379D,二阶隔离型 Δ-Σ 调制器AMC1305M05,运算放大器OPA4340,DC/DC转换器LM76003,微型电源模块PTH08080W,低压稳压器TLV1117,CMOS运放OPA350以及MOSFET 驱动器UCC27211等器件.主要用在太阳能串逆变器和太阳能中心逆变器.本文介绍了10KW三相三电平并网太阳能逆变器参考设计TIDA-01606主要特性和主要指标,框图,以及双电平三相逆变器架构图,三电平T型三相逆变器架构图和参考设计中的栅极驱动器E4,HV卡E4和电源卡E4的电路图,材料清单,PCB设计图和装配图.
This reference design provides an overview on how toimplement a three-level, three-phase, SiC-basedDC/AC grid-tie inverter stage. A higher switchingfrequency of 50 kHz reduces the size of magnetics forthe filter design and as a result a higher power density.SiC MOSFETs with switching loss ensures higher DCbus voltages of up to 1000 V and lower switchinglosses with a peak efficiency of 99%. This design isconfigurable to work as a two-level or three-levelinverter.
Modern commercial scale solar inverters are seeing innovation on two fronts, which lead to smaller, higherefficiency products on the market:
1. The move to higher voltage solar arrays
2. Reducing the size of the onboard magnetic
By increasing the voltage to 1000-V or 1500-V DC from the array, the current can be reduced to maintainthe same power levels. This reduction in current results in less copper and smaller power conductingdevices required in the design. The reduction in di/dt also reduces the stress on electrical components.
However, sustained DC voltages of > 1 kV can be difficult to design to, or even find components that cansurvive it.
To compensate for the voltage stresses gen...