| 摘要: |
| 随着高频电力电子开关器件技术的逐渐成熟，直流变压器的研究和应用得到了越来越多的关注。由于直流变压器的高频特性，现有的基于CPU的实时仿真技术，其计算步长一般是10 μs级别的，无法精确地实时反应直流变压器的高频特性。鉴于此，提出了采用FPGA技术来进行直流变压器的实时仿真，由于FPGA的并行计算特点，其计算步长可以达到纳秒级别，可以精确地反应直流变压器的高频特性。给出了直流变压器的拓扑结构，建立了相应的直流变压器FPGA模型，并设计了相应的控制算法。经过实时仿真研究，验证了基于FPGA的直流变压器实时仿真模型及所设计控制算法的可行性和有效性。 |
| 关键词: 直流变压器 高频特性 实时仿真 FPGA 并行计算 |
| DOI：10.7667/PSPC160787 |
| 投稿时间：2016-05-31修订日期：2016-07-01 |
| 基金项目: |
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| FPGA based real time simulation and research of DCSST |
| YIN Pingping,WANG Weihua |
| (Shanghai Keliang Information Tech.& Eng.Co., Ltd., Shanghai 200233, China;OPAL-RT Technologies, Montreal H3E1T4, Canada) |
| Abstract: |
| Along with the development of high switching frequency power electronics, the research and application of DC Solid State Transformer (DCSST) is getting more and more attention. But because of the high frequency characteristic of DCSST, the CPU based real time simulation which typical computation time-step is about the scale of 10 μs can’t reflect the high frequency characteristic of DCSST precisely, given this, FPGA based real time simulation is proposed, because of the parallel computation characteristic of FPGA, its computation time-step can be up to scale of nanoseconds, so FPGA can simulate the high frequency characteristic of DCSST accurately. In this paper, the topology of DCSST and its FPGA based model are presented, and related control algorithm is proposed. Real time simulation results verify the feasibility and effectiveness of FPGA based DCSST real time simulation and the related control algorithm. |
| Key words: DCSST high frequency characteristic real time simulation FPGA parallel computation |
