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[原创] TI TIDA-01606 10kW三相光伏并网逆变器参考设计

关键词:电源管理 智能能源 光伏并网逆变器

时间:2018-07-30 11:11:53       作者:TI        来源:中电网

TI公司的TIDA-01606是基于SiC的输出功率10kW/10kVA的三相光伏并网逆变器参考设计,最大输入电压在800V DC和1000V DC,在400V AC 50/60Hz并网连接时最大输出功率10-kW/10-kVA,采用高压1200V SiC MOSFET全桥逆变器,峰值效率高达98.5%,满负荷时的输出电流的THD小于2%,主要用在太阳能串逆变器和太阳能中心逆变器.本文介绍了参考设计TIDA-01606主要特性和主要指标,框图,电源卡和栅驱动卡电路图与材料清单.

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 ..

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