RESEARCH ON FLEXIBLE CONTROL OF DC RESIDENTIAL AIR CONDITIONERS IN PEDF SCENARIOS

Wang Chao; Song Yang; Jia Xiaoya; Liu Ting; Dong Sujun; Wang Jun

doi:10.19912/j.0254-0096.tynxb.2025-1935

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 234-242. DOI: 10.19912/j.0254-0096.tynxb.2025-1935

RESEARCH ON FLEXIBLE CONTROL OF DC RESIDENTIAL AIR CONDITIONERS IN PEDF SCENARIOS

Wang Chao^1,2, Song Yang², Jia Xiaoya², Liu Ting², Dong Sujun¹, Wang Jun¹

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Abstract

This study aims to address the insufficient research on the flexible regulation characteristics of air conditioners under the DC architecture and the lack of long-term operational data support in real-world applications. A systematic investigation is conducted on the theoretical foundation, key technologies, and practical applications of DC flexible residential air conditioners. Using theoretical analysis, laboratory tests, and engineering case validation, the technical characteristics, operating rules, and application value of DC flexible residential air conditioners are identified. The results demonstrate that DC flexible residential air conditioners optimize their hardware architecture by removing rectifier and PFC circuits while adding protection circuits such as reverse polarity protection and surge protection. Their wide-voltage operation control and flexible control strategy enhance reliability and enable autonomous adjustment of power consumption. Furthermore, both laboratory tests and field cases verify that DC flexible air conditioners operate stably under various voltage conditions, with prominent flexible performance at low voltages.

Key words

air conditioning / DC distribution systems / flexible appliances / PEDF（photovoltaics,energy storage,direct current and flexibility） / energy efficiency

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Wang Chao, Song Yang, Jia Xiaoya, Liu Ting, Dong Sujun, Wang Jun. RESEARCH ON FLEXIBLE CONTROL OF DC RESIDENTIAL AIR CONDITIONERS IN PEDF SCENARIOS[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 234-242 https://doi.org/10.19912/j.0254-0096.tynxb.2025-1935

References

[1] 清华大学建筑节能研究中心. 中国建筑节能年度发展研究报告 2025(城镇住宅专题)[R]. 北京: 中国城市科学研究会, 北京: 2025.
Tsinghua University Building Energy Efficiency Research Center. Annual development research report on China's building energy efficiency 2025 (urban residential special topic)[R]. Beijing: Chinese Society for Urban Studies, 2025.
[2] HU S, YANG Z Y, YAN D, et al.Emissions of F-gases from room air conditioners in China and scenarios to 2060[J]. Energy and buildings, 2023, 299: 113561.
[3] LI S H, PENG J Q, ZOU B, et al.Zero energy potential of photovoltaic direct-driven air conditioners with considering the load flexibility of air conditioners[J]. Applied energy, 2021, 304: 117821.
[4] 王瑞, 李明, 王云峰, 等. 光伏直驱冰蓄冷空调系统性能分析[J]. 太阳能学报, 2020, 41(4): 30-36.
WANG R, LI M, WANG Y F, et al.Performance analysis of photovoltaic direct-driven ice cool storage air conditioning system[J]. Acta energiae solaris sinica, 2020, 41(4): 30-36.
[5] ZHANG W J, HAO B, LI N P, et al.Investigation on photovoltaic application in buildings in China[J]. Energy procedia, 2015, 70: 673-682.
[6] TSINGHUA U. System and control method of all-dc power supply and storage for building: US20210175708[P].2021-06-10.
[7] FU Z, LIU X C, ZHANG J, et al.Orderly solar charging of electric vehicles and its impact on charging behavior: a year-round field experiment[J]. Applied energy, 2025, 381: 125211.
[8] 江亿. 光储直柔:助力实现零碳电力的新型建筑配电系统[J]. 暖通空调, 2021, 51(10): 1-12.
JIANG Y.PSDF(photovoltaic, storage, DC, flexible): a new type of building power distribution system for zero carbon power system[J]. Heating ventilating & air conditioning, 2021, 51(10): 1-12.
[9] 郝斌. 建筑“光储直柔”与零碳电力如影随形[J]. 建筑, 2021(23): 27-29.
HAO B.Building “light storage and flexibility” goes hand in hand with zero-carbon electricity[J]. Construction and architecture, 2021(23): 27-29.
[10] 钱科军, 李博, 王卫卫. 用户侧柔性负荷调控实现需求响应[C]//2018电力行业信息化年会, 银川. 中国, 2018.
QIAN K J, LI B, WANG W W.Demand response achieved through flexible load control on the consumer side[C]//2018 Annual Conference on Information Technology in the Power Industry. Yinchuan, China. 2018.
[11] LIU X C, LIU X H, JIANG Y, et al.Photovoltaics and energy storage integrated flexible direct current distribution systems of buildings: definition, technology review, and application[J]. CSEE journal of power and energy systems, 2023, 9(3): 829-845.
[12] 刘挺, 宋扬, 汪超, 等. 直流与交流家用空调器性能及成本对比分析[J]. 供用电, 2025, 42(4): 42-47.
LIU T, SONG Y, WANG C, et al.Comparative analysis of performance and cost of DC and AC domestic air conditioners[J]. Distribution & utilization, 2025, 42(4): 42-47.
[13] ROMANCHENKO D, KENSBY J, ODENBERGER M, et al.Thermal energy storage in district heating: centralised storage vs. storage in thermal inertia of buildings[J]. Energy conversion and management, 2018, 162: 26-38.
[14] 张涛, 刘晓华, 刘效辰. 新型电力系统视角下空调系统再认识[J]. 暖通空调, 2023, 53(8): 13-21.
ZHANG T, LIU X H, LIU X C.Reunderstanding of air conditioning system from perspective of new power system[J]. Heating ventilating & air conditioning, 2023, 53(8): 13-21.
[15] AHMAD A, KHAN J Y.Real-time load scheduling, energy storage control and comfort management for grid-connected solar integrated smart buildings[J]. Applied energy, 2020, 259: 114208.
[16] 杨丽君, 黄凯婷, 孔晓磊, 等. 考虑柔性负荷的并网型微电网系统容量优化配置[J]. 太阳能学报, 2021, 42(2): 309-316.
YANG L J, HUANG K T, KONG X L, et al.Capacity optimization configuration of grid-connected microgrid system considering flexible load[J]. Acta energiae solaris sinica, 2021, 42(2): 309-316.
[17] FERAHTIA S, REZK H, ALI ABDELKAREEM M, et al.Optimal techno-economic energy management strategy for building’s microgrids based bald eagle search optimization algorithm[J]. Applied energy, 2022, 306: 118069.
[18] GARG A, TUMMURU N R, ORUGANTI R.Implementation of energy management scenarios in a DC microgrid using DC bus signaling[J]. IEEE transactions on industry applications, 2021, 57(5): 5306-5317.
[19] SUN K, ZHANG L, XING Y, et al.A distributed control strategy based on DC bus signaling for modular photovoltaic generation systems with battery energy storage[J]. IEEE transactions on power electronics, 2011, 26(10): 3032-3045.
[20] 张志丹, 黄小庆, 曹一家, 等. 电网友好型空调负荷的主动响应策略研究[J]. 中国电机工程学报, 2014, 34(25): 4207-4218.
ZHANG Z D, HUANG X Q, CAO Y J, et al.Research on active response policy for grid friendly air conditioning load[J]. Proceedings of the CSEE, 2014, 34(25): 4207-4218.
[21] 钟安琪. 建筑直流电气系统功率主动响应技术研究[D]. 北京: 北京交通大学, 2022.
ZHONG A Q.Research on active power response technology of building DC electric system[D]. Beijing: Beijing Jiaotong University, 2022.
[22] 徐正宇, 刘效辰, 刘晓华, 等. 建筑用电设备柔性调节能力评价方法[J]. 建筑科学, 2025, 41(10): 124-133.
XU Z Y, LIU X C, LIU X H, et al.Evaluation method for energy flexibility of building electric equipment[J]. Building science, 2025, 41(10): 124-133.
[23] CHANG B, YUE G R, LI F, et al.Transient voltage support technology based on flexible DC traction power supply systems[C]//2024 IEEE 8th Conference on Energy Internet and Energy System Integration(EI2). Shenyang, China, 2025: 3186-3190.
[24] 袁金荣, 赵志刚, 惠红勋, 等. 基于直流母线电压的光储直柔系统柔性负荷功率调节实证研究[J]. 广东电力, 2025, 38(9): 15-22.
YUAN J R, ZHAO Z G, HUI H X, et al.Empirical study of flexible load power regulation based on DC bus voltage in photovoltaic energy storage direct flexible systems[J]. Guangdong electric power, 2025, 38(9): 15-22.
[25] HU M M, XIAO F, JØRGENSEN J B, et al. Frequency control of air conditioners in response to real-time dynamic electricity prices in smart grids[J]. Applied energy, 2019, 242: 92-106.
[26] LE L L, FANG J K, AI X M, et al.Continuous-time optimization of inverter air conditioning demand response for ramping flexibility improvement[C]//2020 IEEE Power & Energy Society General Meeting (PESGM). Montreal, QC, Canada, 2020: 1-5.
[27] 汪超, 贾潇雅, 赵鹏, 等. 建筑“光储直柔”系统中直流家用电器技术及标准进展研究[J]. 太阳能学报, 2024, 45(5): 369-379.
WANG C, JIA X Y, ZHAO P, et al.Research progress on technologyand standard ofdc household appliances in pedf building[J]. Acta energiae solaris sinica, 2024, 45(5): 369-379.
[28] 汪超, 宋扬, 董素君, 等. 以直流空调柔性资源为例的热舒适性与用电柔性之间关系的实验研究[J]. 家电科技, 2025(4): 39-43.
WANG C, SONG Y, DONG S J, et al.An experimental study of the relationship between thermal comfort and electricity consumption flexibility using DC air-conditioning flexibleresources as an example[J]. Journal of appliance science & technology, 2025(4): 39-43.
[29] 马钊, 赵志刚, 孙媛媛, 等. 新一代低压直流供用电系统关键技术及发展展望[J]. 电力系统自动化, 2019, 43(23): 12-22.
MA Z, ZHAO Z G, SUN Y Y, et al.Key technologies and development prospect of new generation low-voltage DC power supply and utilization system[J]. Automation of electric power systems, 2019, 43(23): 12-22.
[30] YANG X Z, LYU X, JIA Y W, et al.Flexible air conditioning loads as voltage/frequency-responsive sources in microgrid[C]//2020 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia). Weihai, China, 2020: 1739-1744.
[31] 张湘粤. 美的三代直流变频空调PFC及保护电路应用分析与故障检修[J]. 家电维修, 2024(3): 19-22, 6.
ZHANG X Y.Application analysis and troubleshooting of PFC and protection circuit of Midea’s third-generation DC inverter air conditioner[J]. Appliance repairing, 2024(3): 19-22, 6.
[32] 衣立东, 摆世彬, 张文朝, 等. 综合能源交直流混联外送系统暂态过电压分析与快速估算[J]. 太阳能学报, 2023, 44(6): 122-129.
YI L D, BAI S B, ZHANG W C, et al.Transient overvoltage analysis and rapid estimation of integrated energy AC-DC hybrid transmission system[J]. Acta energiae solaris sinica, 2023, 44(6): 122-129.
[33] 李雨桐, 郝斌, 童亦斌, 等. 《民用建筑直流配电设计标准》解读[J]. 建筑电气, 2022, 41(7): 25-32.
LI Y T, HAO B, TONG Y B, et al.Interpretation of design standard for direct current power distribution of civil buildings[J]. Building electricity, 2022, 41(7): 25-32.
[34] 王劭中, 俞国新, 常云雪, 等. 光储直柔背景下直流空调电机控制策略研究[J]. 电机与控制应用, 2024, 51(4): 60-69.
WANG S Z, YU G X, CHANG Y X, et al.Research on control strategy of DC air conditioning motor in the PEDF system[J]. Electric machines & control application, 2024, 51(4): 60-69.
[35] 袁登科, 徐延东, 李秀涛. 永磁同步电动机变频调速系统及其控制[M]. 北京: 机械工业出版社, 2015.
YUAN D K, XU Y D, LI X T.Frequency conversion speed regulation system of permanent magnet synchronous motor and its control[M]. Beijing: China Machine Press, 2015.
[36] 俞国新, 常云雪, 邵立伟, 等. 考虑光储直柔系统直流母线电压波动的空调电机控制技术[J]. 电气工程学报, 2025, 20(5): 304-313.
YU G X, CHANG Y X, SHAO L W, et al.Control technique of air conditioning motor considering DC bus voltage fluctuation of the PEDF system[J]. Journal of electrical engineering, 2025, 20(5): 304-313.
[37] HE J W, LIANG B H, LI Y W, et al.Simultaneous microgrid voltage and current harmonics compensation using coordinated control of dual-interfacing converters[J]. IEEE transactions on power electronics, 2017, 32(4): 2647-2660.
[38] NI Z H, TAN W, JIANG Y, et al.Modeling and analysis on the voltage-mediated flexibility control of a low-voltage DC building energy system[J]. Applied energy, 2025, 401: 126813.
[39] 汪超, 贾潇雅, 常云雪, 等. 直流柔性房间空调器多工况运行特性研究[J]. 家电科技, 2025(4): 26-29.
WANG C, JIA X Y, CHANG Y X, et al.Analysis and experimental research on the performance of the DC flexible air conditioner under multi-operating conditions[J]. Journal of appliance science & technology, 2025(4): 26-29.