A Novel FPGA-Based Real-Time Simulator for Micro-Grids

Self Cite

Considering the rational use of field programmable gate array (FPGA) resources, this paper proposes a new FPGA-based real-time digital solver (FRTDS) for power system simulation. Based on the relationship between the number of computing components, the operating frequency, and the pipeline length, the best selection principle is given. By analyzing the implementation method of the Multi-Port Read/Write Circuit, the computing formula of the Look-Up-Table (LUT) consumption was derived. Given the excessive use of LUTs in the original computing components, the computing components were assembled in a single typical arithmetic expression of the power system simulation program, as the basic computing formula was characterized by a subset of the typical computing formula and multiple uses of the same variable. Data communication between different computing components was realized by using Multi-Port Input Circuits that share some outputs of read controller, and Multi-Port Output Circuits, which share some outputs of computing cores. According to the test results of original FRTDS and new FRTDS, it was found that the solution proposed in this paper had a shorter ideal simulation time and a higher parallel computing capability, which was very suitable for real-time digital simulation of power systems.

Section: Of 22mentioning

confidence: 99%

“…In [12], the FRTDS developed on Virtex-7 FPGA VC709 can operate normally at 200 MHz and has a high computing capability. However, due to the timing closure issues, much of the FPGA resource is not used, as shown in Table 1.…”

Section: Of 22mentioning

confidence: 99%

A New FPGA-Based Real-Time Digital Solver for Power System Simulation

Bingda

Jin

et al. 2019

Self Cite

“…The pipelining operation of the PEs is described as orders, like assembly language. The compilation software for translating the simulation script to orders can prevent users from FPGA programming [31][32][33][34]. The overall FRTDS structure is shown in Figure 1.…”

Section: Frtds Hardware Designmentioning

confidence: 99%

“…A FPGA-based real-time digital solver (FRTDS) was designed [31,32]. The hardware design and the orders generator of FRTDS have been improved [33], so that FRTDS could perform multi-value parameter pre-storage and multi-rate simulation. The overall structure of a hardware-in-the-loop real-time simulation platform of a smart substation was proposed [34]; the formation and resolution of the process layer network communication message were realized in FRTDS.…”

Section: Introductionmentioning

confidence: 99%

FPGA-Based Real-Time Digital Solver for Electro-Mechanical Transient Simulation

Bingda¹,

Wang²,

Tu³

et al. 2018

Self Cite

A field-programmable gate array (FPGA)-based digital solver for real-time electromechanical transient simulation is designed in this paper. The solving process for a device or sub-network in an electromechanical transient simulation is packaged into the orders in soft function solvers. The orders are reused by soft function solvers that are invoked by microprocessor cores. The data exchange between the microprocessor cores and soft function solvers is enhanced through explicit and implicit channels. The orders of the microprocessor cores are stored in the synchronous dynamic random access memory on the FPGA board, which solves the problem of insufficient storage space for the orders in electromechanical transient simulation. A real-time digital solver for electromechanical transient simulation, whose feasibility is verified by a simulation of part of the power system in East China, is successfully constructed by applying a small number of microprocessor cores and multiple soft function solvers.

“…In References [18,19], FPGA is used to simulate specific elements, such as power electronic converters and motors. References [20,21] realize the co-simulation of FPGA and an industrial control machine, in which FPGA is used as the solver. With the decreasing of manufacturing cost and the maturity of FPGA, real-time simulation fully realized with the FPGA has received more attention.…”

Section: Introductionmentioning

confidence: 99%

A Universal Design of FPGA-Based Real-Time Simulator for Active Distribution Networks Based on Reconfigurable Computing

Jin

et al. 2019

Reconfigurable computing is that the logical resources in the system can be reconfigured according to the real-time changing data flow to achieve different calculation functions. The reconfigurable computing system has both high efficiency on hardware and universality of software. The field programmable gate array (FPGA)-based real-time simulator for active distribution networks (ADNs) requires a long compilation time for case modification, with low efficiency and low versatility, making it inconvenient and difficult for users. To solve the problem of long compile time with a new case, a universal design of the FPGA-based real-time simulator for ADNs based on reconfigurable computing is proposed in this paper. It includes the universal design of the simulation parameter configuration, the simulation initial value setting, the linear equations solving module and the simulation result output module. The proposed universal design of the simulator makes the modification and change of the cases and parameters without recompiling and further improves the simulation efficiency. Simulation results are conducted and compared with PSCAD/EMTDC to validate the correctness and effectiveness of the universal design.