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学者姓名:易杨
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Abstract :
To meet the application requirements of flexible power flow control in local power systems across voltage levels, the PFCT circuit topology and its power flow control strategy are studied. A PFCT circuit topology and its equivalent model are proposed. The mathematical modeling for the series and parallel components of the PFCT are established, along with corresponding control strategies. Flexible control of power flow transmission along the line is accomplished by cross-decoupling power flow control and feedforward decoupling control. A simulation model was built by using the MATLAB/Simulink platform to analyze and validate the PFCT's control of power flow transmission across voltage levels in a typical local power system. A prototype was constructed to validate further the correctness and feasibility of the proposed mathematical models and control strategies. © 2025 Institute of Physics Publishing. All rights reserved.
Keyword :
Electric power system control Electric power system control Electric power transmission Electric power transmission Mathematical morphology Mathematical morphology Topology Topology
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GB/T 7714 | Jiang, Hao , Yi, Yang , Zhu, Lin et al. Power flow control of local power system with power flow controllable transformer [C] . 2025 . |
MLA | Jiang, Hao et al. "Power flow control of local power system with power flow controllable transformer" . (2025) . |
APA | Jiang, Hao , Yi, Yang , Zhu, Lin , Yao, Zhiwei . Power flow control of local power system with power flow controllable transformer . (2025) . |
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本发明涉及一种交流电机和直流电机混合控制系统,包括交直流同线供电变换器、交错接线交流电机、直流电机和控制器,所述交直流同线供电变换器通过交流线路与交流系统连接,所述交直流同线供电变换器通过交直流同线线路连接交错接线交流电机三相输入,所述交错接线交流电机的中性点通过正极导线连接直流电机的正极,所述交直流同线供电变换器通过负极导线连接直流电机的负极;所述控制器分别与交流系统、交直流同线供电变换器、交错接线交流电机、直流电机连接。该系统可以通过一套变换器和控制器实现交流电机和直流电机的独立控制,降低了系统成本。
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GB/T 7714 | 易杨 , 桂尧杰 , 杨刚 et al. 一种交流电机和直流电机混合控制系统 : CN202111277277.5[P]. | 2021-10-30 00:00:00 . |
MLA | 易杨 et al. "一种交流电机和直流电机混合控制系统" : CN202111277277.5. | 2021-10-30 00:00:00 . |
APA | 易杨 , 桂尧杰 , 杨刚 , 钱冲 . 一种交流电机和直流电机混合控制系统 : CN202111277277.5. | 2021-10-30 00:00:00 . |
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低矫顽力永磁体是记忆电动机气隙磁场调节的功能元件,但其非线性磁滞特性导致在调磁过程后不易准确获取磁滞参数,影响记忆电动机精确调磁调速控制.分析低矫顽力永磁体的磁滞特性,建立低矫顽力永磁体的Preisach磁滞模型.通过设计调磁装置,采用有限元仿真研究在施加正弦波和方波等外部磁场过程中的低矫顽力永磁体磁滞特性.仿真结果表明,低矫顽力永磁体的剩磁通密度随所施加外部磁场的变化而变化.制作调磁装置样机,搭建调磁装置控制系统,实验研究在施加不同外部磁场过程中的低矫顽力永磁体磁滞特性.该实验为建立适合记忆电动机设计和优化用的调磁模型提供一种研究方法.
Keyword :
低矫顽力永磁体 低矫顽力永磁体 外部磁场 外部磁场 磁滞模型 磁滞模型 记忆电动机 记忆电动机 调磁装置 调磁装置
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GB/T 7714 | 杨公德 , 李捷 , 易杨 . 低矫顽力永磁体磁滞特性实验研究 [J]. | 实验室研究与探索 , 2022 , 41 (9) : 31-34,119 . |
MLA | 杨公德 et al. "低矫顽力永磁体磁滞特性实验研究" . | 实验室研究与探索 41 . 9 (2022) : 31-34,119 . |
APA | 杨公德 , 李捷 , 易杨 . 低矫顽力永磁体磁滞特性实验研究 . | 实验室研究与探索 , 2022 , 41 (9) , 31-34,119 . |
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This paper proposes a novel branch voltage-balancing control strategy for a hexagonal converter (Hexverter). First, the state-space model based on the double-dq transformation is analyzed in-depth along with the necessary basic mathematical derivation, and the active/reactive power control model in the dq reference frame for the Hexverter is proposed. Second, a zero-sequence double-loop network consisting of a Y-loop and a Hex-loop circulating current was established. This study proposes a method to suppress the Y-loop circulating current by connecting a capacitor at the neutral point. We then establish a novel branch voltage-balancing control strategy based on the transfer power model. The essence of the proposed control strategy is to control the charging and discharging states of each submodule via the zero-sequence voltages and the Hex-loop circulating current to regulate the power transfer between adjacent submodules and branches, thereby effectively ensuring the dynamic balance of the DC voltages of the submodules. The branch voltage-balancing control model and power control model proposed in this paper are based on zero-sequence and positive-sequence networks, respectively. The relative independence of the positive- and zero-sequence networks leads to decoupling of the branch voltage-balancing control model and the power control model; thus, the respective control objectives can be achieved by adjusting the respective control variables independently. It has a stronger adaptability to diverse power grid operating parameters. Finally, the validity and correctness of the mathematical model and control strategy proposed in this study are verified using MATLAB/Simulink.
Keyword :
circulating current suppression circulating current suppression double-dq transformation double-dq transformation Hexverter Hexverter the transfer power model the transfer power model the voltage balancing control the voltage balancing control the zero-sequence double-loop network the zero-sequence double-loop network
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GB/T 7714 | Yi, Yang , Yang, Gang , Qian, Chong et al. Branch Voltage Balancing Control Strategy Based on the Transfer Power Model by Zero-Sequence Circulating Current for the Hexverter [J]. | IEEE ACCESS , 2022 , 10 : 44326-44336 . |
MLA | Yi, Yang et al. "Branch Voltage Balancing Control Strategy Based on the Transfer Power Model by Zero-Sequence Circulating Current for the Hexverter" . | IEEE ACCESS 10 (2022) : 44326-44336 . |
APA | Yi, Yang , Yang, Gang , Qian, Chong , Gui, Yaojie . Branch Voltage Balancing Control Strategy Based on the Transfer Power Model by Zero-Sequence Circulating Current for the Hexverter . | IEEE ACCESS , 2022 , 10 , 44326-44336 . |
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小概率-高风险极端天气灾害事件的频发对电力系统的安全稳定运行提出了重大挑战。针对深度耦合的电-气综合能源系统,文中提出一种考虑极端天气下配电网线路故障概率信息的弹性导向分布鲁棒优化模型以提升其弹性能力。首先,融合极端条件下元件故障概率区间构造线路故障模糊集,在此基础上建立防御-攻击-防御3层框架下的配电网弹性提升优化问题。其次,构建以燃气机组出力为耦合变量的天然气系统运行可行性子问题。然后,提出一种内外双层循环算法求解上述问题:外层循环结合对偶理论和列与约束生成算法求解配电网优化问题;内层循环采用Benders分解算法对气网问题进行校验。最后,通过算例验证了所提模型及求解算法的有效性。
Keyword :
分布鲁棒优化 分布鲁棒优化 双层循环算法 双层循环算法 弹性能力 弹性能力 故障概率信息 故障概率信息 电-气综合能源系统 电-气综合能源系统
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GB/T 7714 | 张亚超 , 易杨 , 胡志鹏 et al. 基于分布鲁棒优化的电-气综合能源系统弹性提升策略 [J]. | 电力系统自动化 , 2021 , 45 (13) : 76-84 . |
MLA | 张亚超 et al. "基于分布鲁棒优化的电-气综合能源系统弹性提升策略" . | 电力系统自动化 45 . 13 (2021) : 76-84 . |
APA | 张亚超 , 易杨 , 胡志鹏 , 谢仕炜 , 黄张浩 , 郑峰 . 基于分布鲁棒优化的电-气综合能源系统弹性提升策略 . | 电力系统自动化 , 2021 , 45 (13) , 76-84 . |
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Hexverter topology has the advantages of small volume and weight, and low cost, etc. It can be used in asynchronous power system interconnection, the renewable energy penetration and other scenarios. Firstly, this paper studied the mathematical model of Hexverter, and established a multiple-dq decoupling control model based on two kinds of frequency components of the primary and secondary sides. This control model realized the flexible power flow control. Secondly, this paper studied the mathematical model of double-loop zero sequence network. And the research believes that, the zero-sequence circulating current in outer-loop of the zero-sequence network can be suppressed by zero-sequence compensation voltage in series, while the zero-sequence circulating current in inner-loop is the key to achieve capacitor voltage balancing control. Furthermore, this paper established circulating current suppression and capacitor voltage balancing control strategies. Finally, the simulation results by Matlab verify the correctness of the mathematical models and the control strategies. © 2021 IEEE.
Keyword :
Electric load flow Electric load flow MATLAB MATLAB Renewable energy resources Renewable energy resources Topology Topology
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GB/T 7714 | Yi, Yang , Qian, Chong , Gui, Yaojie et al. Circulating Current Suppressing Strategy Based on Zero-sequence Network Model for Hexverter [C] . 2021 : 256-266 . |
MLA | Yi, Yang et al. "Circulating Current Suppressing Strategy Based on Zero-sequence Network Model for Hexverter" . (2021) : 256-266 . |
APA | Yi, Yang , Qian, Chong , Gui, Yaojie , Yang, Gang . Circulating Current Suppressing Strategy Based on Zero-sequence Network Model for Hexverter . (2021) : 256-266 . |
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Abstract :
小概率-高风险极端天气灾害事件的频发对电力系统的安全稳定运行提出了重大挑战.针对深度耦合的电-气综合能源系统,文中提出一种考虑极端天气下配电网线路故障概率信息的弹性导向分布鲁棒优化模型以提升其弹性能力.首先,融合极端条件下元件故障概率区间构造线路故障模糊集,在此基础上建立防御-攻击-防御3层框架下的配电网弹性提升优化问题.其次,构建以燃气机组出力为耦合变量的天然气系统运行可行性子问题.然后,提出一种内外双层循环算法求解上述问题:外层循环结合对偶理论和列与约束生成算法求解配电网优化问题;内层循环采用Benders分解算法对气网问题进行校验.最后,通过算例验证了所提模型及求解算法的有效性.
Cite:
Copy from the list or Export to your reference management。
GB/T 7714 | 张亚超 , 易杨 , 胡志鹏 et al. 基于分布鲁棒优化的电-气综合能源系统弹性提升策略 [J]. | 电力系统自动化 , 2021 , 45 (13) : 76-84 . |
MLA | 张亚超 et al. "基于分布鲁棒优化的电-气综合能源系统弹性提升策略" . | 电力系统自动化 45 . 13 (2021) : 76-84 . |
APA | 张亚超 , 易杨 , 胡志鹏 , 谢仕炜 , 黄张浩 , 郑峰 . 基于分布鲁棒优化的电-气综合能源系统弹性提升策略 . | 电力系统自动化 , 2021 , 45 (13) , 76-84 . |
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