面向可再生能源消納的火電機組控制結構綜合與分析

馬士全; 丁進(jìn)良

doi:10.16383/j.aas.c230210

面向可再生能源消納的火電機組控制結構綜合與分析

doi: 10.16383/j.aas.c230210

馬士全^1,,
丁進(jìn)良¹

1.
東北大學(xué)流程工業(yè)綜合自動(dòng)化國家重點(diǎn)實(shí)驗室沈陽(yáng) 110819

基金項目: 國家自然科學(xué)基金 (61988101), 遼寧省中央引導地方項目(2022JH6/100100055)資助

詳細信息

作者簡(jiǎn)介:
馬士全：東北大學(xué)流程工業(yè)綜合自動(dòng)化國家重點(diǎn)實(shí)驗室博士研究生. 2011年獲得吉林化工學(xué)院自動(dòng)化學(xué)士學(xué)位. 2014年獲得東北電力大學(xué)自動(dòng)化碩士學(xué)位. 主要研究方向為微機測控系統、復雜過(guò)程工業(yè)優(yōu)化與控制. 本文通信作者.E-mail: msq_scholar_ex@163.com

丁進(jìn)良：東北大學(xué)教授. 主要研究方向為生產(chǎn)全流程運行優(yōu)化, 智能優(yōu)化和工業(yè)智能及應用.E-mail: jlding@mail.neu.edu.cn

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- 被引次數: 0
出版歷程
- 收稿日期: 2023-04-17
- 錄用日期: 2023-07-10
- 網(wǎng)絡(luò )出版日期: 2024-01-17

Syntheses and Analyses of Control Structure for Coal-fired Power Plants Oriented to Renewable Energy Accommodation

MA Shi-Quan^1
,,
DING Jin-Liang¹

1.
The State Key Laboratory of Synthetical Automation for Process Industry, Northeastern University, Shenyang 110819

Funds: Supported by National Natural Science Foundation of China (61988101), The Liaoning Province Center Leading Local Science and Technology Development Special Project under Grant (2022JH6/100100055)

More Information

Author Bio:
MA Shi-Quan　Ph.D. candidate at the State Key Laboratory of Synthetical Automation for Process Industry, Northeastern University. He received the his bachelor degree from Jilin Institute of Chemical Technology in 2011 and master degree from Northeastern Dianli University in 2014. His current interest covers plant-wide control and optimization for complex industrial process systems, microcomputer measurement and control system. Corresponding authory of this paper

DING Jin-Liang　Professor at Northeastern University. His research interest covers optimization of the whole production process, intelligent optimization, industrial artificial intelligence and applications

摘要

摘要: 增加可再生能源在電網(wǎng)中的占比, 使能源結構更合理, 是加快能源轉型實(shí)現低碳可持續發(fā)展的有效途徑. 電網(wǎng)中占主導地位的火電, 輔助消納可再生能源的能力, 對提高可再生能源在電網(wǎng)中的占比起到重要作用. 為了提高火電機組輔助可再生能源的消納能力, 本文根據當前系統控制方案, 分析了影響機組靈活性與調峰深度的因素, 包括機爐協(xié)調、局部反饋策略下的鍋爐控制、系統穩態(tài)工作點(diǎn)的規劃等. 基于補償方案的協(xié)調策略限制了機組對具有隨機性和間歇性的可再生能源的補償能力; 局部反饋策略下的鍋爐控制只是實(shí)現了等效熱效應的反饋; 非額定工況下的穩態(tài)工作點(diǎn)關(guān)系到輔助可再生能源消納的能耗和排放指標. 根據以上分析分別給出了進(jìn)一步的研究?jì)热?
- 可再生能源消納 /
- 機爐協(xié)調 /
- 控制方案 /
- 協(xié)同控制 /
- 火電機組
Abstract: In order to optimize the energy structure to realize sustainable development, increasing the proportion of renewable energy in power grid is inevitable. The cooperative capability of coal-fired units, which are primary of national grid, is the issue. For the sake of improving this capability, this paper analysed factors which affect flexibility and depth of peak-shaving, based on control scheme. The factors include coordinating turbine and furnace, fuel control based on local feedback, programming steady operating point. Coordinating scheme which was based on compensating networks, restricts the ability of constraining renewable energy which is random and intermittent. It was thermal effect of the fired coal compared with standard coal that the furnace burning was fed back regardless of other burning characters. Steady operating points of the system were related to energy cost and emission when the system did not work in rated condition.The paper proposed further research based on these conclusions.
- renewable energy accommodation /
- coordination of furnace and turbine /
- control strategy /
- cooperative control /
- coal-fired power plants

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圖 1 電力系統平衡調節示意圖

Fig. 1 Supply and demand balance of power grid

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圖 2 爐跟隨為基礎的協(xié)調控制遞階結構

Fig. 2 Hierarchical structure based on furnace following mode

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圖 3 鍋爐壓力控制

Fig. 3 Regulator of steam pressure of furnace

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圖 5 火電機組控制結構簡(jiǎn)圖

Fig. 5 Control scheme of power plants

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圖 6 局部反饋遞階結構

Fig. 6 Hierarchical control structure of local feedback

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圖 7 全局反饋遞階結構

Fig. 7 Hierarchical control structure of feedback

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圖 8 基本控制模式結構

Fig. 8 Control structure of base mode

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圖 9 爐跟隨控制模式結構

Fig. 9 Control structure of furnace following mode

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圖 10 機跟隨控制模式結構

Fig. 10 Control structure of turbine following mode

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圖 4 汽機負荷跟蹤控制

Fig. 4 Electrical power regulator of turbine

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圖 11 基于爐跟隨的協(xié)調控制

Fig. 11 Coordinating control based on furnace following mode

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圖 12 基于機跟隨的協(xié)調控制

Fig. 12 Coordinating control based on turbine following mode

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圖 13 火電機組模型結構

Fig. 13 Structure of coal-fired power plants

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圖 14 串聯(lián)前補償結構

Fig. 14 Compensation before series connection

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圖 15 反饋前補償結構

Fig. 15 Compensation before feedback

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圖 16 串聯(lián)后補償結構

Fig. 16 Compensation after series connection

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圖 17 汽機主控和電調參與一次調頻

Fig. 17 Primary frequency regulating of turbine master and DEH

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圖 18 一次調頻結構

Fig. 18 Structure of primary frequency regulating

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圖 19 凝結水節流補償結構

Fig. 19 Compensating structure of adjusting condensing water

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圖 20 燃煤熱值校正

Fig. 20 Calorific value correction of coal

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圖 21 回熱減小水冷壁入口欠焓

Fig. 21 Improve giving water enthalpy by reheating

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圖 22 電網(wǎng)負荷供需平衡調節類(lèi)比

Fig. 22 Analogy of supply and demand balance of power grid

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表 1 性能參數對比

Table 1 Comparision of performance parameters

參數	我國	歐洲	單位
負荷變動(dòng)速率	2/1.5	6/4	%/min 硬煤/褐煤
最小出力	35/50	20/40	% 硬煤/褐煤
冷態(tài)啟動(dòng)時(shí)間	8/12	4/6	h 硬煤/褐煤
熱態(tài)啟動(dòng)時(shí)間	4	2	h

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