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2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)最新文献

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Research on Loss Balance Modulation Strategy Based on Single-phase Half-Bridge TL-ANPC Inverter 基于单相半桥TL-ANPC逆变器的损耗平衡调制策略研究
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783266
Yingjun Guo, Xingchen Gao, Jianxin Tan, Pengcheng Li, Hexu Sun
Three Level Active Neutral-Point-Clamped (TL-ANPC) inverters are under a variety of zero-level redundant switching states, which can overcome traditional neutral-point-clamped inverters. The problem of unbalanced loss of power switch tubes in the Neutral-Point-Clamped (NPC). This paper takes the single-phase half-bridge TL-ANPC inverter as the research object, proposes a loss-balanced modulation strategy for switching devices with bipolar carrier sinusoidal modulation wave decomposition, and derives the implementation process of the modulation strategy. The dynamic commutation process and loss distribution characteristics of the inverter are analyzed. Finally, a simulation model of a single-phase half-bridge TL-ANPC inverter needs to be based on the PLECS and MATLAB/Simulink platforms. The simulation results show that the method proposed in this paper can reduce the imbalance of inverter losses, and also improve the DC side capacitor voltage imbalance and reduce the harmonic content of output voltage.
三电平有源中性点箝位(TL-ANPC)逆变器处于多种零电平冗余开关状态,克服了传统中性点箝位逆变器的缺点。中性点箝位(NPC)电源开关管的不平衡损耗问题。本文以单相半桥TL-ANPC逆变器为研究对象,提出了一种双极载波正弦调制波分解开关器件的损耗平衡调制策略,并推导了该调制策略的实现过程。分析了逆变器的动态换相过程和损耗分布特性。最后,需要基于PLECS和MATLAB/Simulink平台建立单相半桥TL-ANPC逆变器的仿真模型。仿真结果表明,本文提出的方法既能降低逆变器的不平衡损耗,又能改善直流侧电容电压的不平衡,降低输出电压的谐波含量。
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引用次数: 3
A Dynamic Price Zone Partitioning Strategy for Cross-Regional Market Transaction 跨区域市场交易的动态价格分区策略
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783286
Hui Cui, Xiaonan Yang, Dong-ling Cheng, Jianxiao Wang, Jing Li, Junfei Zhu
The reform of China’s electricity market continues to deepen, the proportion of cross-regional transactions continues to increase, and the cross-regional power market needs to be further improved. Northern Europe has a relatively mature regional electricity price mechanism, which has great guiding significance for the construction of China’s cross-regional and cross-provincial power market. This paper analyzes the applicability of the Nordic transnational electricity market clearing and congestion management model in China. The cross-regional market clearing method based on Locational Marginal Prices (LMP) and the flow-based (FB) model for cross-regional transmission capacity calculation are used for dynamic price zone partitioning and management. After considering the influence of geographical location and locational marginal electricity price, a k-means clustering model is used for price zone partitioning, and all transaction between price zones can be solved by FB model. A case study based on an IEEE 30-node system demonstrates the effectiveness of the proposed dynamic price zone partitioning strategy, which can better reflect the price signal and realize the optimal allocation of resources.
中国电力市场改革不断深化,跨区域交易比重不断提高,跨区域电力市场有待进一步完善。北欧地区具有相对成熟的区域电价机制,对中国跨区域、跨省电力市场的建设具有重要的指导意义。本文分析了北欧跨国电力市场清算与拥堵管理模式在中国的适用性。采用基于区位边际价格(LMP)的跨区域市场出清方法和基于流量的跨区域输电容量计算模型进行动态价格分区和管理。在考虑了地理位置和区位边际电价的影响后,采用k-means聚类模型对电价区进行划分,所有电价区之间的交易均可采用FB模型求解。以IEEE 30节点系统为例,验证了所提出的动态价格分区策略的有效性,能够更好地反映价格信号,实现资源的最优配置。
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引用次数: 0
An Integrated Energy System Operation Model Considering New Electricity Marketing Strategy 考虑新电力营销策略的综合能源系统运行模式
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783418
Shuai Liu, Mingqiang Wang, Xiaoyang Lian, Yuxi Hu
In recent years, the economic operation of Integrated Energy System (IES) has been widely concerned. How to determine the energy price has become an urgent problem to be solved of IES. In order to overcome this problem, a modified IES operation model considering new electricity marketing strategy is proposed. In this model, the combined stochastic/robust optimization (S/RO) is established to minimize the sum of electricity exchange cost, fuel purchasing cost, operating cost, flexibility adjustment cost and renewable curtailment cost. Based on the bounded uncertainty-based robust optimization (BURO), the modified IES operation model is transformed into a mixed integer linear programming (MILP) model, which is solved by CPLEX solver. The feasibility and effectiveness of the proposed model are illustrated on the IEEE 33-node distribution system with 11-node heat-cold system.
近年来,综合能源系统的经济运行受到了广泛关注。如何确定能源价格,已成为我国能源市场迫切需要解决的问题。为了克服这一问题,提出了一种考虑新电力营销策略的改进IES运营模型。该模型以换电成本、燃料采购成本、运行成本、柔性调整成本和可再生弃风成本之和最小为目标,建立随机/鲁棒组合优化(S/RO)模型。基于有界不确定性鲁棒优化(BURO),将改进后的IES运行模型转化为混合整数线性规划(MILP)模型,用CPLEX求解器对其进行求解。在具有11节点冷热系统的IEEE 33节点配电系统上验证了该模型的可行性和有效性。
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引用次数: 0
Research on Constant Load of Double Acting Free Piston Expander-Linear Generator 双作用自由活塞膨胀-直线发电机恒载研究
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783277
Baoying Peng, Kai Zhang, Pengjia Wang, Liang Tong
As a new type of vehicle waste heat recovery device, free piston expander-linear generator (FPE-LG) can recycle vehicle exhaust to generate electricity, thereby reducing energy consumption and pollutant emissions. In order to develop a more integrated FPE-LG system and advance the practical application of FPE-LG. In this paper, a double-acting free piston expander linear generator test bench is built, the operating characteristics of the piston and the output performance of the linear generator are studied when the system is connected to a constant load resistance. At the same time, the pressure and temperature changes of the air in the cylinders on both sides were analyzed.
自由活塞膨胀-直线发生器(FPE-LG)作为一种新型的汽车余热回收装置,可以回收汽车尾气进行发电,从而降低能耗和污染物排放。为了开发集成度更高的FPE-LG系统,推进FPE-LG的实际应用。本文搭建了双作用自由活塞膨胀直线发电机试验台,研究了系统连接恒载电阻时活塞的工作特性和直线发电机的输出性能。同时对两侧气缸内空气的压力和温度变化进行了分析。
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引用次数: 0
Research on Modeling and Joint Power Flow Simulation of Multi Energy Coupling Network 多能耦合网络建模与联合潮流仿真研究
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783293
Tianyuan Kang, K. Liu, Muke Bai, Min Wu, Dongli Jia, Enbo Luo
In order to realize the multi energy complementary advantages and energy efficient utilization of the integrated energy system, this paper firstly analyzes the sub energy network models and simulation methods of electricity, gas and heat, then constructs the coupling link model of the integrated energy system, and puts forward the multi energy joint power flow simulation algorithm. Finally, taking a typical area in the north as an example, the multi energy coupling network joint power flow simulation analysis is carried out, Select the optimal energy layout form, improve energy utilization efficiency, and provide reference for the planning, design and optimal operation of multi region and multi energy system.
为实现综合能源系统的多能互补优势和节能利用,本文首先分析了电、气、热的分能网络模型和仿真方法,然后构建了综合能源系统的耦合链路模型,提出了多能联合潮流仿真算法。最后,以北方某典型地区为例,进行多能耦合网络联合潮流仿真分析,选择最优的能量布局形式,提高能源利用效率,为多区域、多能系统的规划、设计和优化运行提供参考。
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引用次数: 0
Experiment Study of 330kV Transmission Line Tower Gaps at 4300m Altitude 海拔4300m处330kV输电线路塔隙试验研究
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783242
Xiuyuan Yao, Shengfu Wang, Liang Tian, Ling Jiang, Yujian Ding
In order to ensure the reliability of 330kV transmission project in high altitude areas, especially 3000-5000m above sea level (a.s.l). It is necessary to conduct experimental researches on the discharge characteristics of the air gaps of the 330kV tower. In this paper, the power frequency voltage, the switching impulse and lighting impulse voltage discharge tests were carried out at Tibet. Then, the 50% discharge voltage curves of different altitude were obtained. Finally, the clearance distance required for 330kV transmission lines was also recommended. The results provide the design of 330kV transmission line with technical support, and also more data reserved for the study of high-altitude external insulation.
为了保证高海拔地区,特别是海拔3000-5000m (a.s.l)地区330kV输电工程的可靠性。有必要对330kV塔气隙的放电特性进行实验研究。本文在西藏进行了工频电压、开关冲击电压和照明冲击电压放电试验。得到了不同海拔高度50%放电电压曲线。最后对330kV输电线路所需的间隙距离进行了推荐。研究结果为330kV输电线路的设计提供了技术支持,也为高海拔外绝缘的研究预留了更多的数据。
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引用次数: 0
Exploration and Research on the Development Path of the Power Capacity Market 电力容量市场发展路径的探索与研究
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783120
Chengming He, Maohua Shan, Xiaojun Li, Hao Zhang, Ying Yang
The sufficiency of generating capacity plays an important role in long-term stable and reliable operation of the power system. With the significant increase of installed capacity of renewable energy, the living environment of traditional thermal power units is squeezed to a certain extent, resulting in the decline of income of thermal power plants, and the abundance of reliable generation capacity of the entire power system is threatened. This paper first focuses on the capacity guarantee measures adopted to ensure the sufficiency of power generation capacity. The capacity mechanism suitable for China is analyzed. Secondly, capacity market mechanism is designed, including the Base Residual Auction (BRA), the Incremental Auction and the capacity transfer market. Finally, the enlightenment of foreign successful experience on capacity market construction in China is analyzed, which provides reference for capacity market construction in China.
发电能力的充足性对电力系统的长期稳定可靠运行起着至关重要的作用。随着可再生能源装机容量的显著增加,传统火电机组的生存环境受到一定程度的挤压,导致火电厂收入下降,整个电力系统的可靠发电能力充裕受到威胁。本文首先着重研究了为保证发电容量的充分性而采取的容量保障措施。分析了适合中国国情的产能机制。其次,设计了容量市场机制,包括基本剩余拍卖(BRA)、增量拍卖和容量转移市场。最后,分析了国外的成功经验对我国产能市场建设的启示,为我国的产能市场建设提供借鉴。
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引用次数: 0
A Black Start Model with Power Unit Driving Multiple Auxiliary Machines in Wind Power Consumption 风力发电机组驱动多辅机的黑启动模型
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783282
Hong Hu, Libin Wen, Jun Yu Li, Zhiyuan Sun, Kun Zheng, Xuanren Meng
The black start process is an abnormal special operation mode of power grid operation and the working conditions are complex, and there are often unexpected accidents and problems in the start-up process, especially the impact of different auxiliary machines driven at the load recovery stage on the system is very different, and the ordinary black start simulation results are not accurate enough. To this end, a black start model considering a single power supply to drive a variety of auxiliary machines is proposed. The auxiliary start-up stage of the nearby power plant after the successful black start is modeled, and the black start scheme is analyzed and evaluated from the three main aspects of generator self-excitation, no-load line over-voltage and low-frequency oscillation, and the transient response characteristics in the black start process are clearly displayed in the form of waveform diagram, which is used as a strong basis for judging whether the corresponding black start scheme of the model is safe and reliable.
黑启动过程是电网运行的一种异常特殊的运行方式,工况复杂,在启动过程中往往会出现意外事故和问题,特别是在负荷恢复阶段驱动的不同辅机对系统的影响差异很大,普通黑启动仿真结果不够准确。为此,提出了一种考虑单电源驱动多种辅机的黑启动模型。对黑启动成功后附近电厂的辅助启动阶段进行建模,并从发电机自激、空载线路过电压和低频振荡三个主要方面对黑启动方案进行分析和评价,以波形图的形式清晰地展示了黑启动过程中的暂态响应特性。作为判断模型所对应的黑启动方案是否安全可靠的有力依据。
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引用次数: 0
Research on Reliability Modeling and Maintenance Strategy of Key Component of EMU Based on Stochastic Differential Equation and Copula Theory 基于随机微分方程和Copula理论的动车组关键部件可靠性建模与维修策略研究
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783318
Lanlan Huangfu, H. Su, Huayun Wang
Preventive maintenance strategy is an important mean to ensure the reliable operation of large equipment in power plant, nuclear power plant, high-speed railway Electric Multiple Units (EMU) and other fields. Aiming at the problems of high maintenance cost and great damage of EMU gearbox, the reliability and state maintenance decision model based on stochastic differential equation (SDE) and Copula theory was proposed in this paper. Firstly, the model comprehensively considers the degradation process of components and the external random disturbance factors, describes the external random disturbance by Brownian operation, and establishes the Weibull proportional risk model based on SDE. Secondly, based on Copula theory, the reliability model of component performance degradation is obtained. On this basis, the corresponding Time-Based Maintenance (TBM) and Condition-Based Maintenance (CBM) strategies are established, and the preventive maintenance strategy of components is formulated with the optimization goal of minimizing cost ratio. Finally, the example is given to analyze the reliability model and verify its validity.
预防性维修策略是保证电厂、核电站、高铁动车组等领域大型设备可靠运行的重要手段。针对动车组齿轮箱维修成本高、损坏大的问题,提出了基于随机微分方程(SDE)和Copula理论的可靠性和状态维修决策模型。首先,该模型综合考虑了部件的退化过程和外部随机干扰因素,采用布朗算子描述外部随机干扰,建立了基于SDE的威布尔比例风险模型;其次,基于Copula理论,建立了部件性能退化的可靠性模型;在此基础上,建立了相应的基于时间的维护(TBM)和基于状态的维护(CBM)策略,制定了以成本比最小为优化目标的部件预防性维护策略。最后通过算例对可靠性模型进行了分析,验证了该模型的有效性。
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引用次数: 0
Multi-energy Storage System Planning Method for Integrated Energy System Considering load Uncertainty 考虑负荷不确定性的综合能源系统多储能系统规划方法
Pub Date : 2022-04-22 DOI: 10.1109/CEEPE55110.2022.9783274
P. Dai, Yu-Hui Zhao, Zhesheng Hu, Hao Sun, Li Yang
With the development of new energy equipment such as electric vehicles, the large-scale integration of charging piles and charging stations into the integrated energy system has brought a lot of volatility and randomness to the system load, which can be solved by installing multi-energy energy storage facilities. This paper proposes a multi-energy energy storage planning method for integrated energy systems that considers load uncertainty. By characterizing the load uncertainty, combined with the established multi-energy energy storage planning model of the integrated energy system, the optimal capacity of the energy storage facility is obtained for the economical optimization.
随着电动汽车等新能源设备的发展,充电桩和充电站大规模集成到综合能源系统中,给系统负荷带来了很大的波动性和随机性,可以通过安装多能储能设施来解决。提出了一种考虑负荷不确定性的综合能源系统多能量储能规划方法。通过对负荷不确定性的刻画,结合已建立的综合能源系统多能储能规划模型,求出储能设施的最优容量,实现经济优化。
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引用次数: 0
期刊
2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE)
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