抑制母线电压跌落的热泵温度轨迹规划算法

doi:10.11930/j.issn.1004-9649.202210013

中国电力 ›› 2023, Vol. 56 ›› Issue (5): 99-107.DOI: 10.11930/j.issn.1004-9649.202210013

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抑制母线电压跌落的热泵温度轨迹规划算法

赵杨阳¹, 刘澜¹, 赵伟¹, 曾爽², 梁安琪², 王瀚秋³, 马凯³

1. 国网(苏州)城市能源研究院, 江苏苏州 215000;
2. 国网北京市电力公司电力科学研究院, 北京 100075;
3. 国网北京市电力公司, 北京 100031

收稿日期:2022-10-07 修回日期:2022-12-02 出版日期:2023-05-28 发布日期:2023-05-27
作者简介:赵杨阳(1990-),男,通信作者,博士,高级工程师,从事新能源发电及电力电子变换器控制研究,E-mail:zhaoyy3@js.sgcc.com.cn;刘澜(1983-),男,博士,高级工程师,从事综合能源研究,E-mail:liulan@js.sgcc.com.cn
基金资助:
国家电网有限公司科技项目（面向典型区域清洁供能的电热协同跨网互济关键技术研究及示范，5400-202111575A-0-5-SF）。

Heat Pump Temperature Trajectory Planning Algorithm for Bus Voltage Sag Suppression

ZHAO Yangyang¹, LIU Lan¹, ZHAO Wei¹, ZENG Shuang², LIANG Anqi², WANG Hanqiu³, MA Kai³

1. State Grid (Suzhou) City and Energy Research Institute, Suzhou 215000, China;
2. Electric Power Research Institute of State Grid Beijing Electric Power Company, Beijing 100075, China;
3. State Grid Beijing Electric Power Company, Beijing 100031, China

Received:2022-10-07 Revised:2022-12-02 Online:2023-05-28 Published:2023-05-27
Supported by:
This work is supported by Science and Technology Project of SGCC (Research and Demonstration of Key Technology of Electricity and Heat Cooperative Grid Mutual Support for Clean Energy Supply in Typical Regions, No.5400-202111575A-0-5-SF).

摘要/Abstract

摘要： “光储直柔”微网能充分利用建筑自身的光伏能源与热惯量储能系统，然而热泵负荷过大容易导致直流母线电压严重跌落，使直流微网系统的稳定运行面临巨大挑战。从热泵调温过程中自身负荷管理出发，首先，构建计及建筑温升过程、热泵制冷/制热效率与驱动电机电磁性能的联合模型，分析母线电压跌落机理；然后，提出基于切比雪夫多项式的热过渡策略，构建考虑热力学、人体舒适度与热泵性能的约束；最后，引入梯度寻优法求解最优温度轨迹规划曲线并进行对比仿真分析。仿真结果表明算法能在一定程度上抑制热泵调温过程中直流母线电压的暂态跌落，利于建筑直流微网系统平滑控制与稳定性提升。

关键词: “光储直柔”微网, 建筑温升模型, 母线电压跌落抑制, 温度轨迹规划, 切比雪夫多项式

Abstract: The PEDF (photovoltaics, energy storage, direct current and flexibility) micro-gird can make full use of the building’s own photovoltaic energy and thermal inertia storage system. However, excessive heat pump load will lead to a serious voltage sag at the DC bus, causing a great challenge to the stable operation of the DC micro-grid system. Therefore, this paper proposes a temperature trajectory planning algorithm that can suppress transient dc bus voltage sag. Based on the heat pump’s own load management in the process of its temperature regulation, a joint model is firstly constructed to analyze the mechanism of bus voltage sag, with consideration of the temperature rise process of buildings, the cooling/heating efficiency of heat pump and the electromagnetic performance of drive motors. And then, a Chebyshev polynomial-based thermal transition strategy is proposed, which integrates the thermodynamics, human comfort and heat pump performance constraints. Finally, the gradient optimization method is introduced to solve the optimal temperature trajectory planning curve, and comparative simulation is conducted. The simulation results show that the proposed algorithm can significantly suppress the transient sag of DC bus voltage in the process of heat pump temperature regulation, which are well suited to the smooth control and improving stability of building’s DC microgrid system.

Key words: PEDF microgrid, building temperature model, bus voltage sag suppression, temperature trajectory planning, Chebyshev polynomial

赵杨阳, 刘澜, 赵伟, 曾爽, 梁安琪, 王瀚秋, 马凯. 抑制母线电压跌落的热泵温度轨迹规划算法[J]. 中国电力, 2023, 56(5): 99-107.

ZHAO Yangyang, LIU Lan, ZHAO Wei, ZENG Shuang, LIANG Anqi, WANG Hanqiu, MA Kai. Heat Pump Temperature Trajectory Planning Algorithm for Bus Voltage Sag Suppression[J]. Electric Power, 2023, 56(5): 99-107.

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https://www.electricpower.com.cn/CN/Y2023/V56/I5/99

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抑制母线电压跌落的热泵温度轨迹规划算法

Heat Pump Temperature Trajectory Planning Algorithm for Bus Voltage Sag Suppression

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抑制母线电压跌落的热泵温度轨迹规划算法

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