WO2016188503A2 - Procédé de mise en œuvre approprié pour une interface de simulation en temps réel d'une échelle à multiples temps de transitoires électromagnétiques - Google Patents

Procédé de mise en œuvre approprié pour une interface de simulation en temps réel d'une échelle à multiples temps de transitoires électromagnétiques Download PDF

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Publication number
WO2016188503A2
WO2016188503A2 PCT/CN2016/089823 CN2016089823W WO2016188503A2 WO 2016188503 A2 WO2016188503 A2 WO 2016188503A2 CN 2016089823 W CN2016089823 W CN 2016089823W WO 2016188503 A2 WO2016188503 A2 WO 2016188503A2
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WIPO (PCT)
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time
time scale
real
simulation
fpga
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PCT/CN2016/089823
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English (en)
Chinese (zh)
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WO2016188503A3 (fr
Inventor
穆清
李亚楼
张星
王祥旭
陈绪江
朱毅
王艺璇
孙丽香
胡晓波
彭红英
张彦涛
张志强
刘敏
李琨
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中国电力科学研究院
国家电网公司
国网山东省电力公司经济技术研究院
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Publication of WO2016188503A2 publication Critical patent/WO2016188503A2/fr
Publication of WO2016188503A3 publication Critical patent/WO2016188503A3/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]

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  • the invention relates to an implementation method, in particular to an implementation method suitable for an electromagnetic transient multi-time scale real-time simulation interface.
  • the real-time digital simulation system of the power system can simulate various operating conditions of the power system in real time, and has the advantages of small size, low power consumption, good versatility, high repeatability, low price dynamic simulation and low cost of digital-analog hybrid simulation device. Widely used in the testing of power automation equipment.
  • the small step simulation system is an important part of a complete electromagnetic transient simulation system. As the simulation step size becomes smaller, the simulation burden of the system also increases, which requires the use of the FPGA hardware acceleration platform to implement real-time double-precision floating-point operations of the small-step simulation system.
  • FPGA programs should implement parallelism and reduce dependencies between data.
  • FPGA should shorten the length of a single computing pipeline.
  • the LUT of the FPGA can be used both for storage and for calculation; in order to improve the computing power of the FPGA, the use of the storage space of the FPGA must be reduced.
  • the existing multi-time-scale meshing algorithm design method utilizes the natural delay characteristics of the transmission line. Among them, the equivalent calculation circuit is shown in Figure 2.
  • the current source recursion formula is:
  • the present invention provides an implementation method for an electromagnetic transient multi-time scale real-time simulation interface, which effectively solves the interconnection problem between the FPGA small step size simulation system and the server system of the power system, and solves the simulation scale.
  • the problem of limitation greatly improves the efficiency of simulation.
  • An implementation method suitable for an electromagnetic transient multi-time scale real-time simulation interface comprising the following steps:
  • determining a time scale of the sub-network according to a dynamic time constant of the system includes a minimum time scale and a non-minimum time scale.
  • the network of the minimum time scale runs on a real-time FPGA simulation platform
  • the network of a non-minimum time scale runs on a real-time server platform.
  • the network matrix initialization in the step (2) comprises: using an external interpolation method to inversely push the initial voltage and current of the electromagnetic transient simulation system, estimating the system voltage and current before the current time, and recording the time and solution.
  • the voltage and current associated with the coupling element comprises: using an external interpolation method to inversely push the initial voltage and current of the electromagnetic transient simulation system, estimating the system voltage and current before the current time, and recording the time and solution.
  • the network matrix is stored in the memory of the FPGA platform.
  • timing control is performed by the FPGA platform, the FPGA platform and the real-time server platform are synchronously started, and the network running on the FPGA system is transmitted to the real-time server platform every other non-minimum time scale.
  • Matrix data is
  • the real-time server platform when the real-time server platform receives the data transmitted by the FPGA, compares with the historical interface data on the real-time server platform, and obtains an intermediate variable of the non-minimum time scale of the FPGA platform, and Transfer to the FPGA platform on a non-minimum time scale.
  • step (3) is repeated; if not, the simulation calculation is performed using the intermediate variable of the next non-minimum time scale.
  • the present invention provides an implementation method of an electromagnetic transient multi-time scale real-time simulation interface.
  • the decoupling component is decomposed into two controlled sources with fixed internal resistance by initialization, and the pre-process on the server side is adopted.
  • the calculation incorporates the controlled source into the sub-network before the simulation begins, preventing the core network equation from being affected by changes in the controlled source calculation. This solidifies the calculation process and is beneficial to the implementation of the FPGA.
  • the splitting and design of the interface simulation calculation is proposed, which solves the problem of unbalanced computing load and excessive computational resources of FPGA in multi-scale parallel network calculation, and improves the calculation speed and simulation scale.
  • FIG. 1 is a flow chart of an implementation method of an electromagnetic transient multi-time scale real-time simulation interface provided by the present invention
  • FIG. 2 is a schematic structural diagram of an equivalent value calculation circuit provided by the background art.
  • an implementation method suitable for an electromagnetic transient multi-time scale real-time simulation interface comprising the following steps:
  • determining the time scale of the sub-network according to the dynamic time constant of the system includes a minimum time scale and a non-minimum time scale.
  • the following dynamic time constants can be selected: 1, 10, 50, 100, 1000.
  • the network of the minimum time scale runs on a real-time FPGA simulation platform, and the network of a non-minimum time scale runs on a real-time server platform.
  • the network matrix initialization includes: using an external interpolation method to initialize the initial voltage of the electromagnetic transient simulation system Reverse the current with the current, estimate the system voltage and current before the current time, and record the voltage and current associated with the decoupling component at that time;
  • the network matrix is stored in the memory (SRAM) of the FPGA platform.
  • the FPGA platform performs timing control, synchronously starts the FPGA platform and the real-time server platform, and transmits data of the network matrix running on the FPGA system to the real-time server platform every other non-minimum time scale. .
  • step (4) when the real-time server platform receives the data transmitted by the FPGA, compares with the historical interface data on the real-time server platform, and obtains an intermediate variable of the non-minimum time scale of the FPGA platform, and is at a non-minimum Transfer to the FPGA platform in time scale.
  • step (3) On a non-minimum time scale, if the FPGA receives the data of the real-time server platform, step (3) is repeated; if not, the simulation is performed using the intermediate variable of the next non-minimum time scale.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
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  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

La présente invention concerne un procédé de mise en œuvre approprié pour une interface de simulation d'une échelle à multiples temps de transitoires électromagnétiques, ledit procédé comprenant les étapes suivantes : selon une échelle à multiples temps de transitoires électromagnétiques, la division d'un système de simulation en une pluralité de sous-réseaux connectés via des lignes de transmission d'élément de découplage, et la détermination d'échelles de temps des sous-réseaux; via un circuit équivalent de Thévenin, la séparation d'un élément de découplage en deux sources commandées ayant des résistance internes fixes, l'incorporation dans les sous-réseaux et la réalisation d'une initialisation de matrice de réseau; la réalisation d'un calcul de simulation et la réception de données d'une plateforme FPGA; le prétraitement des données de la plateforme FPGA, l'obtention de variables intermédiaires et la poursuite du calcul de simulation.
PCT/CN2016/089823 2015-05-22 2016-07-12 Procédé de mise en œuvre approprié pour une interface de simulation en temps réel d'une échelle à multiples temps de transitoires électromagnétiques WO2016188503A2 (fr)

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CN201510264005.XA CN106294897B (zh) 2015-05-22 2015-05-22 一种适用于电磁暂态多时间尺度实时仿真接口的实现方法
CN201510264005.X 2015-05-22

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CN106777827A (zh) * 2017-01-24 2017-05-31 中国电力科学研究院 一种机电‑电磁混合仿真方法及系统
CN108984847A (zh) * 2018-06-21 2018-12-11 武汉大学 一种基于分频阻抗补偿的实时数字混合仿真接口方法
CN109002660A (zh) * 2018-09-07 2018-12-14 天津大学 基于fpga的有源配电网实时仿真解算器通用化设计方法
CN109508479A (zh) * 2018-10-19 2019-03-22 天津大学 基于fpga的有源配电网实时仿真器参数配置通用化方法
CN109783845A (zh) * 2018-12-05 2019-05-21 中国电力科学研究院有限公司 边界点分群解耦的机电-电磁混合仿真分网方法及装置
CN111695258A (zh) * 2020-06-11 2020-09-22 哈尔滨工业大学 一种电磁继电器动态特性仿真动能注入仿真方法
CN112084624A (zh) * 2020-07-31 2020-12-15 清华大学 电磁-机电混合仿真电磁暂态侧接口功率计算方法与装置
CN113033024A (zh) * 2021-04-25 2021-06-25 海南省电力学校(海南省电力技工学校) 输电网细粒度并行电磁暂态仿真方法、系统、终端及介质
CN113887052A (zh) * 2021-10-09 2022-01-04 清鸾科技(成都)有限公司 综合能源系统及其仿真计算方法、装置和计算机可读存储介质
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CN108984847B (zh) * 2018-06-21 2022-12-06 武汉大学 一种基于分频阻抗补偿的实时数字混合仿真接口方法
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