Network Modeling and Operation Optimization of Electricity-HCNG-Integrated Energy System

Yue Qiu; Suyang Zhou; Wei Gu; Yuping Lu; Xiao-Ping Zhang; Kang Zhang; Gaoyan Han; Hongkun Lyu

doi:10.17775/CSEEJPES.2022.07810

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Network Modeling and Operation Optimization of Electricity-HCNG-Integrated Energy System

Regular Papers | 更新时间：2026-10-15

- Network Modeling and Operation Optimization of Electricity-HCNG-Integrated Energy System
- CSEE Journal of Power and Energy Systems Vol. 9, Issue 4, Pages: 1251-1265(2023)
- 作者机构：
  
  1. School of Electrical Engineering, Southeast University,Nanjing,China
  2. School of Electronic Electrical and Systems Engineering, University of Birmingham,Birmingham,UK
  3. Electric Power Research Institute of State Grid Zhejiang Electric Power Co., Ltd.,Hangzhou,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2022.07810
  CLC：
- Published：01 July 2023
- 稿件说明：
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Yue Qiu, Suyang Zhou, Wei Gu, et al. Network Modeling and Operation Optimization of Electricity-HCNG-Integrated Energy System[J]. CSEE Journal of Power and Energy Systems, 2023, 9(4): 1251-1265.
DOI：

Yue Qiu, Suyang Zhou, Wei Gu, et al. Network Modeling and Operation Optimization of Electricity-HCNG-Integrated Energy System[J]. CSEE Journal of Power and Energy Systems, 2023, 9(4): 1251-1265. DOI： 10.17775/CSEEJPES.2022.07810.

摘要

Abstract

Hydrogen-enriched compressed natural gas (HCNG) has great potential for renewable energy and hydrogen utilization. However

injecting hydrogen into the natural gas network will change original fluid dynamics and complicate compressed gas's physical properties

threatening operational safety of the electricity-HCNG-integrated energy system (E-HCNG-IES). To resolve such problem

this paper investigates effect of HCNG on gas network dynamics and presents an improved HCNG network model

which embodies the influence of blending hydrogen on the pressure drop equation and line pack equation. In addition

an optimal dispatch model for the E-HCNG-IES

considering the “production-storage-blending-transportation-utilization” link of the HCNG supply chain

is also proposed. The dispatch model is converted into a mixed-integer second-order conic programming (MISOCP) problem using the second-order cone (SOC) relaxation and piecewise linearization techniques. An iterative algorithm is proposed based on the convex-concave procedure and bound-tightening method to obtain a tight solution. Finally

the proposed methodology is evaluated through two E-HCNG-IES numerical testbeds with different hydrogen volume fractions. Detailed operation analysis reveals that E-HCNG-IES can benefit from economic and environmental improvement with increased hydrogen volume fraction

despite declining energy delivery capacity and line pack flexibility.

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Keywords

references

7. S. Amelang. ( 2020, Jun. 17 ). Germany's National Hydrogen Strategy . [Online ] . Available: https://www.cleanenergywire.org/factsheets/germanys-national-hydrogen-strategy.

13. H. G. Zhou. ( 2019, Oct. 15 ). The first case in China! The first phase of the HCNG demonstration project by the State Power Investment Corporation Limited was successfully completed . [Online ] . Available: http://news.bjx.com.cn/html/20191015/1013148.shtml.

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