Experimental Verification of Deadbeat Control with 1-MHz Multisampling and Disturbance Compensation Method for Three Phase PWM Inverter
Experimental Verification of Deadbeat Control with 1-MHz Multisampling and Disturbance Compensation Method for Three Phase PWM Inverter
复制标题
三相 PWM 逆变器 1 MHz 多重采样无差拍控制及扰动补偿方法的实验验证
DOI：
10.1541/ieejjia.8.632
复制
发表时间：
2019
影响因子：
1.7
通讯作者：
T. Yokoyama
中科院分区：
文献类型：
--
作者：
H. Ueta;T. Yokoyama
不间断电源（UPS）是重要基础设施电力系统的基本组成部分。然而，在UPS中，输出电压必须在负载变化下精确控制。对于大型UPS，逆变器的额定功率为几百kVA或更大，其开关频率必须低于几kHz。因此，载波间隔很大，降低了其对负载干扰的鲁棒性。因此，本文提出了一种无差拍控制与干扰补偿使用1 MHz的多频方法的三相脉宽调制逆变器系统。使用基于FPGA的硬件控制器，1 MHz的采样内实现的脉冲宽度调制脉冲的载波间隔。仿真和实验结果表明，该方法对负载变化的鲁棒性优于传统的无差拍控制方法。
Uninterruptible power supplies (UPSs) are fundamental components of the power systems of important infrastructure facilities. However, in UPSs, the output voltage must be precisely controlled under load variations. For large-scale UPSs, the power rating of the inverter is several hundred kVA or more and its switching frequency must be under several kHz. The carrier interval is thus large, deteriorating its robustness to load disturbances. Hence, this paper proposes a deadbeat control with disturbance compensation using a 1-MHz multisampling method for three-phase pulse-width modulated inverter systems. Using an FPGA based hardware controller, 1-MHz sampling is realized within the carrier interval of the pulse-width modulated pulse. Simulation and experiments show that the robustness to load variation is better than that of the conventional deadbeat control method.