Dynamic simulation of the integrated AC/DC grids plays a crucial role in the energy control center. In this work, a faster than supervisory control and data acquisition (FT-SCADA) emulation based on flexible time-stepping (FTS) algorithm is proposed for the energy control center to predict and mitigate the impacts after serious disturbances using field-programmable gate arrays (FPGAs). To gain a high acceleration over SCADA/real-time, the FTS-based dynamic emulation is applied to the AC grid, which is the IEEE 118-bus system where a 9 th -order synchronous machine model is adopted. Meanwhile, the electromagnetic transient (EMT) emulation revealing the exact performance of the DC grid provides an insight into the impact on its AC counterpart. A power-voltage interface is inserted between the AC and DC grids since distinct emulation strategies are utilized, and the EMT-dynamic co-emulation is able to run concurrently on FPGA boards due to their massive parallelism. Three case studies are emulated to demonstrate the efficacy of the proposed algorithm, and a minimum of 101 times faster-than-SCADA/real-time can be achieved. Hence, following the occurrence of a disturbance, the FT-SCADA/RT emulator will generate an optimal solution in advance to maintain the stability of the hybrid AC/DC grid. The results of the FTS-based FT-SCADA/RT emulation are validated by the off-line transient stability simulation tool TSAT of the DSATools suite.

中文翻译：

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交流/直流电网的灵活时步动态仿真，适用于比 SCADA 应用更快的应用


交直流一体化电网的动态仿真在能源控制中心中起着至关重要的作用。在这项工作中，为能源控制中心提出了一种基于灵活时间步进（FTS）算法的比监控和数据采集（FT-SCADA）更快的仿真，以使用现场可编程门阵列来预测和减轻严重干扰后的影响（FPGA）。为了获得超过 SCADA/实时的高加速度，基于 FTS 的动态仿真被应用于交流电网，即采用 9 阶同步机模型的 IEEE 118 总线系统。同时，电磁瞬变 (EMT) 仿真揭示了直流电网的确切性能，让我们深入了解其对交流电网的影响。由于采用了不同的仿真策略，因此在交流和直流电网之间插入了电源电压接口，并且由于其大规模并行性，EMT 动态协同仿真能够在 FPGA 板上同时运行。模拟了三个案例研究来证明所提出算法的有效性，并且可以实现至少比 SCADA/实时快 101 倍。因此，在发生扰动后，FT-SCADA/RT仿真器将提前生成最优解决方案，以维持混合交直流电网的稳定性。基于 FTS 的 FT-SCADA/RT 仿真结果由 DSATools 套件的离线暂态稳定性仿真工具 TSAT 进行验证。