Real-time transient simulation for distribution systems based on FPGA, Part I: module realization

With the development of distribution system, active distribution network and related digital simulation technology have drawn extensive attention. A real-time transient simulation method based on FPGA was proposed, which takes advantage of many merits of field-programmable gate array (FPGA), such as the highly parallel structure, rich hardware resources, high operating frequency and low cost. This paper introduced the solving architecture orient to real-time transient simulation of active distribution system, as well as the FPGA realization of the device modules including passive element, line model, source and breaker. The proposed method is based on paralleled algorithm and deeply pipelined design, and uses floating-point arithmetic calculation to gain high accuracy. This paper laid the foundation for future work on real-time transient simulation of active distribution network based on FPGA.