论文部分内容阅读
介绍一种新型综合电能质量调节装置———并联处理在线不间断电源 ,该装置仅采用一套双向电流型变流装置 ,利用超导线圈作为直流侧储能元件 ,可实现负载电压调节、有源滤波和改善功率因数等多项功能 ,并具有损耗小、结构简单等优点。根据装置的结构特点和工作原理 ,提出了一种基于同步旋转坐标系统的解耦和前馈补偿控制策略 ,通过采用电源电流“预补偿”的方法 ,解决了常规前馈补偿方法中电源电流暂态分量衰减过慢的问题。利用仿真软件PSCAD/EMTDC对该装置及其控制策略进行了仿真分析 ,仿真结果验证了该装置具有良好的运行性能
This paper introduces a new integrated power quality regulation device --- parallel processing on-line uninterruptible power supply. This device uses only one set of bi-directional current-type converter device. The use of superconducting coil as the DC side energy storage element can adjust the load voltage. Source filter and improve the power factor and many other features, and has the advantages of small loss, simple structure. According to the structural characteristics and working principle of the device, a control strategy of decoupling and feedforward compensation based on synchronous rotating coordinate system is proposed. By adopting the method of “pre-compensation” of the power supply current, the power supply current in the conventional feedforward compensation method The attenuation of the state component is too slow. The device and its control strategy are simulated and analyzed by using the simulation software PSCAD / EMTDC. The simulation results show that the device has good running performance