DC-type High-power Interface Method of Digital-analog Hybrid Simulation Suitable for Microgrids

ZHAN Rongrong; LIU Longhao; LENG Feng; JIN Long; WANG Dan; ZHANG Fengge

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DC-type High-power Interface Method of Digital-analog Hybrid Simulation Suitable for Microgrids

更新时间：2025-12-08

- DC-type High-power Interface Method of Digital-analog Hybrid Simulation Suitable for Microgrids
- Vol. 46, Issue 10, Pages: 3500-3509(2020)
- 作者机构：
  
  1. 电网安全与节能国家重点实验室(中国电力科学研究院有限公司)
  2. 华中科技大学电气与电子工程学院强电磁工程与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 October 2020，
  
  Published：2020
- 稿件说明：
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ZHAN Rongrong, LIU Longhao, LENG Feng, et al. DC-type High-power Interface Method of Digital-analog Hybrid Simulation Suitable for Microgrids[J]. 2020, 46(10): 3500-3509.
DOI：

ZHAN Rongrong, LIU Longhao, LENG Feng, et al. DC-type High-power Interface Method of Digital-analog Hybrid Simulation Suitable for Microgrids[J]. 2020, 46(10): 3500-3509. DOI：

摘要

为满足微电网数模混合仿真大功率和双向功率流的需求

提出了一种直流型的大功率接口方法。首先研究并提出了一种适用于直流系统的稳定性改进接口算法

试验验证了其具有更大的稳定裕度;然后针对直流型数模混合仿真

提出了基于H桥的双向直流型大功率接口的模块化设计方法

可同时满足大容量和功率双向流动的要求。针对同一等值网络进行仿真

加入所提接口的混合仿真与数字仿真的结果一致

验证了该大功率接口方法的有效性;设计基于模糊控制的能量管理策略的应用场景并开展数模混合仿真试验

试验结果验证了直流型大功率接口及其构成的混合仿真系统的稳定性、动态性能和在微电网中的适用性。

Abstract

To meet the requirements of high power and bidirectional power flow of digital-analog hybrid simulation for microgrids

a DC-type high-power interface method is proposed. Firstly

an improved stability interface algorithm suitable for DC systems is proposed

and its greater stability margin is verified by experiments. Then

for the DC-type digital-analog hybrid simulation

a modular design method of the bidirectional DC-type digital-analog hybrid simulation high-power interface based on H-bridges is proposed

which can meet the requirements of large-capacity and bidirectional power flows. For the same equivalent network

the hybrid simulations including the proposed interface and the digital simulation are performed

respectively

and the results of the two are basically the same

which verifies the effectiveness of the high-power interface method. Moreover

the application scenario of the energy management strategy based on fuzzy control is designed and the hybrid simulation experiment is conducted. The stability

dynamic performance

and the applicability to the microgrid of the DC-type high-power interface and its hybrid simulation system are verified by experiment results.

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Related Institution

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