Frequency Transient Model and Analytical Analysis of Interconnected System Considering Heat Storage of Thermal Power Boiler

SHEN Jiakai; MA Shiying; XIE Yan; TANG Xiaojun; ZHU Shaoxuan; HUO Qidi

doi:10.7500/AEPS20231007002

您当前的位置：

首页 >

文章列表页 >

Frequency Transient Model and Analytical Analysis of Interconnected System Considering Heat Storage of Thermal Power Boiler

Basic Research | 更新时间：2025-06-16

- Frequency Transient Model and Analytical Analysis of Interconnected System Considering Heat Storage of Thermal Power Boiler
- Automation of Electric Power Systems Vol. 48, Issue 20, Pages: 140-148(2024)
- 作者机构：
  
  中国电力科学研究院有限公司，北京市 100192
- 作者简介：
- 基金信息：
  
  Joint Fund of National Natural Science Foundation of China(U22B20109);Self-funded Project of China Research Institute(XT83-23-010)
- DOI：10.7500/AEPS20231007002
  CLC：
- Received：07 October 2023，
  
  Revised：2024-06-19，
  
  Published Online：23 September 2024，
  
  Published：25 October 2024
- 稿件说明：
移动端阅览
申家锴,马世英,谢岩等.计及火电锅炉蓄热的互联系统频率暂态模型及解析分析[J].电力系统自动化,2024,48(20):140-148.

SHEN Jiakai,MA Shiying,XIE Yan,et al.Frequency Transient Model and Analytical Analysis of Interconnected System Considering Heat Storage of Thermal Power Boiler[J].Automation of Electric Power Systems,2024,48(20):140-148.
申家锴,马世英,谢岩等.计及火电锅炉蓄热的互联系统频率暂态模型及解析分析[J].电力系统自动化,2024,48(20):140-148. DOI： 10.7500/AEPS20231007002.

SHEN Jiakai,MA Shiying,XIE Yan,et al.Frequency Transient Model and Analytical Analysis of Interconnected System Considering Heat Storage of Thermal Power Boiler[J].Automation of Electric Power Systems,2024,48(20):140-148. DOI： 10.7500/AEPS20231007002.

摘要

高比例新能源接入电网挤占了火电机组的发电空间并带来了较强波动性，火电机组常处于深调状态且易受到扰动的侵扰，导致锅炉蓄热水平差，频率响应能力未达标称，威胁系统频率稳定性。文中针对火电机组蓄热动态变化的影响展开研究，基于直流潮流与经典锅炉模型，构建了计及锅炉蓄热动态的互联系统频率暂态分析模型；通过模型等值聚合、等效变换、解环与近似替代，降低了模型阶数；进一步，基于模型特点进行模态分解，推导两机等值模型的简单闭式解，并基于闭式解，分析了火电机组锅炉蓄热模型参数对互联系统频率暂态过程的影响。算例表明，所建模型与所提解析方法能够在频率暂态计算中准确计及锅炉蓄热对互联系统的影响，所得结果可为增强火电机组频率支撑能力提供参考。

Abstract

The high proportion of renewable energy has affected the generation of thermal units and brought strong volatility. Thermal units are often at deep regulation state and are susceptible to disturbances

resulting in poor boiler heat storage levels and insufficient frequency response capabilities

posing a threat to system frequency stability. This paper focuses on the impact of dynamic changes in heat storage of thermal power units. Based on DC power flow and classical boiler models

a transient analysis model for the frequency of interconnected systems considering heat storage dynamics of boilers is constructed. By means of model equivalence aggregation

equivalent transformation

solution loop and approximate substitution

the order of the model has been reduced. Furthermore

based on the characteristics of the model

modal decomposition is carried out to derive a simple closed-form solution to the two-machine equivalent model. Based on the closed-form solution

the impact of the parameters on the heat storage model of the thermal power boiler on the transient frequency process of the interconnected system is analyzed. The calculation example shows that the established model and the proposed analytical method can accurately take into account the impact of heat storage of boiler on interconnected systems in frequency transient calculations

and the results can provide references for enhancing the frequency support capability of thermal power units.

关键词

Keywords

references

卓振宇，张宁，谢小荣，等 . 高比例可再生能源电力系统关键技术及发展挑战［J］. 电力系统自动化， 2021 ， 45 （ 9 ）： 171 - 191 .

ZHUO Zhenyu ， ZHANG Ning ， XIE Xiaorong ， et al . Key technologies and developing challenges of power system with high proportion of renewable energy ［J］. Automation of Electric Power Systems ， 2021 ， 45 （ 9 ）： 171 - 191 .

张程铭，柳璐，程浩忠，等 . 考虑频率安全的电力系统规划与运行优化研究综述与展望［J］. 电网技术， 2022 ， 46 （ 1 ）： 250 - 264 .

ZHANG Chengming ， LIU Lu ， CHENG Haozhong ， et al . Review and prospects of planning and operation optimization for electrical power systems considering frequency security ［J］. Power System Technology ， 2022 ， 46 （ 1 ）： 250 - 264 .

韩泽雷，鞠平，秦川，等 . 面向新型电力系统的频率安全研究综述与展望［J］. 电力自动化设备， 2023 ， 43 （ 9 ）： 112 - 124 .

HAN Zelei ， JU Ping ， QIN Chuan ， et al . Review and prospect of research on frequency security of new power system ［J］. Electric Power Automation Equipment ， 2023 ， 43 （ 9 ）： 112 - 124 .

刘家豪，王程，毕天姝 . 面向新能源电力系统频率时空动态的节点等效惯量指标及其应用［J/OL］. 中国电机工程学报： 1 - 16 ［ 2023-10-07 ］. http：//kns.cnki.net/kcms/detail/11.2107.TM.20220831.1105.004.html http://kns.cnki.net/kcms/detail/11.2107.TM.20220831.1105.004.html .

LIU Jiahao ， WANG Cheng ， BI Tianshu . Node equivalent inertia index for temporal-spatial frequency dynamics of renewable energy power system and its applications ［J］. Proceedings of the CSEE： 1 - 16 ［ 2023-10-07 ］. http：//kns.cnki.net/kcms/detail/11.2107.TM.20220831.1105.004.html http://kns.cnki.net/kcms/detail/11.2107.TM.20220831.1105.004.html .

刘克天，王晓茹 . 电厂锅炉及辅机对电力系统动态频率影响的仿真研究［J］. 电力系统保护与控制， 2014 ， 42 （ 13 ）： 53 - 58 .

LIU Ketian ， WANG Xiaoru . Simulation study of influences of power plant’s boiler and auxiliaries on power system dynamic frequency ［J］. Power System Protection and Control ， 2014 ， 42 （ 13 ）： 53 - 58 .

于国强，刘克天，胡尊民，等 . 火电机组参与深度调峰对电网频率特性的影响研究［J］. 可再生能源， 2021 ， 39 （ 8 ）： 1124 - 1129 .

YU Guoqiang ， LIU Ketian ， HU Zunmin ， et al . Study on the influence of thermal power units participating in deep peak load regulation on grid frequency characteristics ［J］. Renewable Energy Resources ， 2021 ， 39 （ 8 ）： 1124 - 1129 .

刘映尚，马骞，王子强，等 . 新型电力系统电力电量平衡调度问题的思考［J］. 中国电机工程学报， 2023 ， 43 （ 5 ）： 1694 - 1705 .

LIU Yingshang ， MA Qian ， WANG Ziqiang ， et al . Cogitation on power and electricity balance dispatching in new power system ［J］. Proceedings of the CSEE ， 2023 ， 43 （ 5 ）： 1694 - 1705 .

张剑云，李明节 . 新能源高渗透的电力系统频率特性分析［J］. 中国电机工程学报， 2020 ， 40 （ 11 ）： 3498 - 3506 .

ZHANG Jianyun ， LI Mingjie . Analysis of the frequency characteristic of the power systems highly penetrated by new energy generation ［J］. Proceedings of the CSEE ， 2020 ， 40 （ 11 ）： 3498 - 3506 .

龚浩岳，周勤勇，郭强，等 . 高比例新能源接入场景电力系统频率分析模型改进与应用［J］. 电网技术， 2021 ， 45 （ 12 ）： 4603 - 4611 .

GONG Haoyue ， ZHOU Qinyong ， GUO Qiang ， et al . Improvement and application of frequency analysis modules for power system in high proportion of renewable energy situation ［J］. Power System Technology ， 2021 ， 45 （ 12 ）： 4603 - 4611 .

申家锴，刘洋，李卫东，等 . 考虑频率与区间联络线功率安全约束的两区互联电力系统机组组合［J］. 电力自动化设备， 2022 ， 42 （ 11 ）： 167 - 175 .

SHEN Jiakai ， LIU Yang ， LI Weidong ， et al . Unit commitment considering safety constraints of frequency and inter-areal tie-line power in two-area interconnected power system ［J］. Electric Power Automation Equipment ， 2022 ， 42 （ 11 ）： 167 - 175 .

蔡国伟，钟超，吴刚，等 . 考虑风电机组超速减载与惯量控制的电力系统机组组合策略［J］. 电力系统自动化， 2021 ， 45 （ 16 ）： 134 - 142 .

CAI Guowei ， ZHONG Chao ， WU Gang ， et al . Unit commitment strategy of power system considering overspeed load reduction and inertia control of wind turbine ［J］. Automation of Electric Power Systems ， 2021 ， 45 （ 16 ）： 134 - 142 .

郭亦文，刘茜，刘畅，等 . 火电机组深度调峰一次调频优化控制策略［J］. 热力发电， 2018 ， 47 （ 11 ）： 135 - 139 .

GUO Yiwen ， LIU Qian ， LIU Chang ， et al . Control strategy optimization for primary frequency regulation in depth peak load cycling of thermal power units ［J］. Thermal Power Generation ， 2018 ， 47 （ 11 ）： 135 - 139 .

盛锴，邹鑫，邱靖，等 . 火电机组一次调频功率响应特性精细化建模［J］. 中国电力， 2021 ， 54 （ 6 ）： 111 - 118 .

SHENG Kai ， ZOU Xin ， QIU Jing ， et al . Refined modeling for power response characteristic of thermal power unit under primary frequency control ［J］. Electric Power ， 2021 ， 54 （ 6 ）： 111 - 118 .

殳建军，崔晓波，罗凯明，等 . 基于多模型预测控制的火电机组深度调峰一次调频控制策略［J］. 锅炉技术， 2020 ， 51 （ 6 ）： 12 - 17 .

SHU Jianjun ， CUI Xiaobo ， LUO Kaiming ， et al . Primary frequency modulation control strategy in deep peak load cycling state for thermal power units based on multi-model predictive control ［J］. Boiler Technology ， 2020 ， 51 （ 6 ）： 12 - 17 .

CAO Y J ， ZHANG H X ， ZHANG Y ， et al . Extending SFR model to incorporate the influence of thermal states on primary frequency response ［J］. IET Generation ， Transmission & Distribution， 2020 ， 14 （ 19 ）： 4069 - 4078 .

RABBANIFAR P ， AMJADY N . Frequency-constrained unit-commitment using analytical solutions for system frequency responses considering generator contingencies ［J］. IET Generation ， Transmission & Distribution， 2020 ， 14 （ 17 ）： 3548 - 3560 .

LIU L ， LI W D ， SHEN J K ， et al . Probabilistic assessment of β for thermal unit using point estimate method adopted to a low-order primary frequency response model ［J］. IEEE Transactions on Power Systems ， 2019 ， 34 （ 3 ）： 1931 - 1941 .

SHEN J K ， LI W D ， LIU L ， et al . Frequency response model and its closed-form solution of two-machine equivalent power system ［J］. IEEE Transactions on Power Systems ， 2021 ， 36 （ 3 ）： 2162 - 2173 .

沈硕，刘娆，李晓萌，等 . 基于简化导纳矩阵的快速频率响应分析方法［J］. 高电压技术， 2018 ， 44 （ 10 ）： 3284 - 3290 .

SHEN Shuo ， LIU Rao ， LI Xiaomeng ， et al . Fast frequency response analysis based on reduced admittance matrix ［J］. High Voltage Engineering ， 2018 ， 44 （ 10 ）： 3284 - 3290 .

Dynamic models for fossil fueled steam units in power system studies ［J］. IEEE Transactions on Power Systems ， 1991 ， 6 （ 2 ）： 753 - 761 .

ALI NAGHIZADEH R ， VAHIDI B ， BANK TAVAKOLI M R . Estimating the parameters of dynamic model of drum type boilers using heat balance data as an educational procedure ［J］. IEEE Transactions on Power Systems ， 2011 ， 26 （ 2 ）： 775 - 782 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Joint Optimization Model for Hundred-megawatt-level Energy Storage Participating in Dual Ancillary Services Dispatch of Power Grid

Inertia Support Method of Energy Storage Doubly-fed Condenser Based on Frequency-Rotor Speed Droop Control

Related Author

Xiaoyu ZHOU

Rao LIU

Fuzeng BAO

Mingze ZHANG

Haixia WANG

Weidong LI

LIU Xianchao

LI Guoqing

Related Institution

School of Electrical Engineering, Dalian University of Technology

Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education (Northeast Electric Power University)

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources （North China Electric Power University）

State Grid Jibei Electric Power Co.， Ltd.

Key Laboratory of Guangxi Electric Power System Optimization and Energy-saving Technologys (Guangxi University)

⁰