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2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)最新文献

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Typical application scenarios of rural energy internet platform 农村能源互联网平台典型应用场景
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9436826
Liyuan Peng, Zihao Tong, Huixuan Li, Anbang Xie, Yongle Zheng, Yihan Zhang
Only the specific participants of the energy internet platform can be targeted to develop diversified products and services, so this paper divides the rural energy internet platform into four typical scenarios: government, public, rural agriculture and rural industry. First, through assisting the government to formulate appropriate energy-related policies, make reasonable power planning decisions and carry out accurate industrial investment allocation; Second, by helping users reduce energy costs, improve energy efficiency and improve energy experience; Finally, by improving agricultural production efficiency, increase agricultural economic benefits; Optimizing the current situation of enterprise energy use, realizing the optimization and improvement of enterprise energy use, and helping the energy industry to improve operational efficiency.
只有能源互联网平台的特定参与者才能有针对性地开发多样化的产品和服务,因此本文将农村能源互联网平台分为政府、公众、农村农业和农村工业四个典型场景。一是协助政府制定合适的能源相关政策,做出合理的电力规划决策,进行精准的产业投资配置;第二,通过帮助用户降低能源成本,提高能源效率,改善能源体验;最后,通过提高农业生产效率,增加农业经济效益;优化企业能源利用现状,实现企业能源利用的优化和提升,帮助能源行业提高运行效率。
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引用次数: 0
Waterlogging sensor for intelligent power distribution room 智能配电室内涝传感器
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437051
Min Zhang, Hong-bin Wang, Fang-zhou Hao, Xiang Lin, J. Fang, Lin-huan Luo, Fan Yang
In order to improve the environmental monitoring and operation and maintenance level of the power distribution room, this paper designs an intelligent waterlogging sensor system, and introduces the overall design, hardware design, and software design of the sensor in detail. The sensor monitors the flooding situation based on the principle of liquid conduction, uses a ZigBee-based wireless transmission module and a 485 wired network to realize data transmission and communication between the sensor and the monitoring center, and judges the operation status of the power distribution room through the host computer. The low power consumption, long lifetime, and integration of waterlogging sensors are realized, which can improve resource utilization, reduce equipment installation costs, and provide technical reference for optimizing equipment operation.
为了提高配电室的环境监测和运维水平,本文设计了一种智能内涝传感器系统,详细介绍了传感器的总体设计、硬件设计和软件设计。该传感器基于液体传导原理对洪水情况进行监测,采用基于zigbee的无线传输模块和485有线网络,实现传感器与监控中心之间的数据传输和通信,并通过上位机对配电室的运行状态进行判断。实现了内涝传感器的低功耗、长寿命、集成化,提高了资源利用率,降低了设备安装成本,为优化设备运行提供了技术参考。
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引用次数: 0
Research of Hybrid Integrated Energy Station Based on Gas Turbine 基于燃气轮机的混合动力综合能源站研究
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9436907
Shifeng Shi, Junyao Wang, Qingguang Yu, Zhicheng Jiang, Yuming Liu, Yingke Zhang, Le Li, Xiaolan Bai
Energy stations are generally established in economically developed urban areas, where incremental coal combustion is limited due to a shortage of primary energy. The main ways of renewable energy generation are waste power, biomass power, wind power, photovoltaic, and geothermal. Due to new energy generation has its own fatal disadvantage and the rapid economic development of the city, coupled with the long-established natural gas supply network, gas-based distributed energy stations will become the most important way of integrated energy development. In this paper, an integrated energy station system was designed, using existing substation resources, construction of data center stations, energy storage station, 5 g base stations, photovoltaic power station, gas turbine station etc., realizing the sharing of resource integration, to support smart grid, to develop into a comprehensive energy services as a typical application scenario. Results of the simulation show that the designed integrated energy station system has high performance and high renewable energy penetration.
能源站一般建立在经济发达的城市地区,由于缺乏一次能源,增加的煤炭燃烧受到限制。可再生能源的发电方式主要有废弃物发电、生物质能发电、风力发电、光伏发电、地热发电等。由于新能源发电有其自身的致命劣势和城市经济的快速发展,再加上早已建立的天然气供应网络,以天然气为基础的分布式能源站将成为能源综合发展的最重要方式。本文设计了综合能源站系统,利用现有变电站资源,建设数据中心站、储能站、5g基站、光伏电站、燃气轮机站等,实现资源整合共享,以支持智能电网,发展成为综合能源服务为典型应用场景。仿真结果表明,所设计的综合能源站系统具有较高的性能和可再生能源渗透率。
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引用次数: 0
Active Distribution Network Substation Planning Method Considering Complementation of Load Characteristic 考虑负荷特性互补的主动配电网变电站规划方法
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437113
Nan Zheng, Keren Chen, Qiyuan Cai, Yinan Li, Pengjia Shi, Kangli Xiang
Different types of loads have different peak times for power consumption. Considering complementary of load timing characteristics scientifically can reduce the peak-to-valley load within the power supply range, reduce the substation capacity, and improve the economics of substation planning schemes. However, in the existing substation planning methods, the influence of complementary of load characteristics on the substation planning scheme has not been considered. To this end, a substation planning scheme that considers the load sequence characteristics is proposed. Firstly, with the goal of minimizing the cost of distribution network planning schemes, a substation planning model is established. Secondly, considering the complementarity of load characteristics, a substation power supply range method based on the improved Voronoi diagram is proposed, then an integrated solution method for the substation planning model is presented. Finally, the calculation example shows that considering the complementarity of load characteristics will slightly increase the construction cost of the line, but at the same time effectively reduce the investment and construction capacity of the substation, thereby improving the overall economy of the distribution network planning scheme.
不同类型的负载具有不同的功耗峰值时间。科学考虑负荷时序特性的互补性,可以降低供电范围内的峰谷负荷,降低变电站容量,提高变电站规划方案的经济性。然而,在现有的变电站规划方法中,没有考虑负荷特性互补对变电站规划方案的影响。为此,提出了一种考虑负荷序列特性的变电站规划方案。首先,以配电网规划方案成本最小为目标,建立了变电站规划模型。其次,考虑负荷特性的互补性,提出了一种基于改进Voronoi图的变电站供电范围法,并给出了变电站规划模型的综合求解方法。最后,算例表明,考虑负荷特性的互补性会略微增加线路的建设成本,但同时有效降低变电站的投资和建设能力,从而提高配电网规划方案的整体经济性。
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引用次数: 1
A New Combined Scheduling Method of Thermal-Wind Power Considering Grid Restrictions and Wind Power Consumption 考虑电网约束和风电消纳的热风联合调度新方法
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9436973
Ziqi Zhu, Mingliang Han, Luo Li, Xing Li
In order to effectively alleviate wind power consumption and environmental pollution, taking the grid restrictions and wind power consumption into consideration, a combined dispatching model of thermal-wind power system is proposed, which is helpful to arrange the output of generating units economically and reasonably. The wind power cogeneration scheduling model is built on the basis of minimizing the total operation cost which includes unit operation cost, environmental cost and wind abandonment cost. Besides, the grid restrictions are considered reasonably, inclueding DC power flow equation for fast calculation, constraints of generator operating range, limit constraint of unit slope, start/stop time limit, spinning reserve limitations and wind energy output constraints. The model is a quadratic programming model, which is solved by CPLEX in this paper. Taking IEEE30 electrical system as an illustration, the validity and rationality of the proposed method are verified.
为有效缓解风电消纳和环境污染,综合考虑电网限制和风电消纳,提出了一种热风联合调度模型,有助于经济合理地安排发电机组出力。风电热电联产调度模型是以机组运行成本、环境成本和弃风成本等总运行成本最小为目标建立的。合理考虑了电网约束,包括快速计算的直流潮流方程、发电机运行范围约束、机组坡度限制约束、启停时限限制、旋转备用限制、风电输出约束等。该模型是一个二次规划模型,本文采用CPLEX求解。以IEEE30电气系统为例,验证了该方法的有效性和合理性。
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引用次数: 1
Coordinated Utilization of Adaptive Inertia Control and Virtual Impedance Regulation for Transient Performance Increase of VSG Under Different Faults 自适应惯性控制与虚拟阻抗调节协同应用于不同故障下VSG暂态性能提升
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437123
Dongyin Zhang, Hanping Xu, Yicong Wang, Lei Chen, Yaxin Li, Ting Hu
For boosting the transient performance of a virtual synchronous generator (VSG) during different faults, this paper presents a methodology of collaboratively utilizing adaptive inertia control (AIC) and virtual impedance regulation (VIR). The VSG’s mathematical model is established, and its transient behaviors are probed. In the proposed coordination methodology, the function of the AIC is to flexibly change the rotor inertia in terms of the angular frequency variation, and the impact of the VIR is to timely and usefully eliminate the overcurrent risk. From these two benefits, the VSG’s power angle stability (PAS) enables to be kept, and the caused fault current rush can be powerfully mitigated to fulfill a low voltage ride through (LVRT) operation. To testify the feasibility and validity of the proposed coordination methodology, the VSG’s simulation model is built using MATLAB, and the VSG’s transient performance assessment is implemented by considering various faults. The findings show that the PAS margin is distinctly enhanced, and the LVRT problem of the VSG is well figured out. The simulation results favorably agree with the theoretical investigation.
为了提高虚拟同步发电机在不同故障状态下的暂态性能,提出了一种自适应惯性控制(AIC)和虚拟阻抗调节(VIR)协同应用的方法。建立了VSG的数学模型,探讨了其瞬态特性。在所提出的协调方法中,AIC的作用是根据角频率变化灵活地改变转子惯量,而VIR的作用是及时有效地消除过流风险。由于这两个优点,VSG的功率角稳定性(PAS)得以保持,并且可以有力地减轻引起的故障电流涌,以实现低电压穿越(LVRT)操作。为了验证所提出的协调方法的可行性和有效性,利用MATLAB建立了VSG的仿真模型,并在考虑各种故障的情况下实现了VSG的暂态性能评估。结果表明,PAS边缘明显增强,很好地解决了VSG的LVRT问题。仿真结果与理论研究结果吻合较好。
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引用次数: 4
Research on Optimal Load Distribution of Power Plants Based on Chaos Genetic Algorithm 基于混沌遗传算法的电厂负荷优化分配研究
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437067
Hao Yang, Yongguang Ma, Sihan Chen, Fuyu Qiao
According to the structural characteristics of chaotic motion, chaotic variables are introduced into the genetic algorithm optimization process, so that the values of the two are mapped to each other, and the group that adds chaotic disturbances is selected according to the fitness level, and the guidance of mutation operation is increased. Chaos is proposed Genetic algorithm. This improved algorithm is applied to the optimal distribution of plant-level load in power plants, and the coal consumption of thermal power plants is verified by simulation experiments. The results show that this algorithm can obtain better optimization results in the plant-level load optimization distribution problem, allowing the power plant to obtain better economy.
根据混沌运动的结构特点,在遗传算法优化过程中引入混沌变量,使两者的值相互映射,并根据适应度选择添加混沌扰动的组,增加突变操作的指导作用。提出了混沌遗传算法。将该改进算法应用于电厂厂级负荷优化分配,并通过仿真实验对火电厂的煤耗进行了验证。结果表明,该算法在电厂级负荷优化分配问题中能够获得较好的优化结果,使电厂获得较好的经济性。
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引用次数: 0
Multi-mode Big Data Mining and Analysis Based on Internet of Things on Power 基于电力物联网的多模式大数据挖掘与分析
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437093
Gong Cui, Shuzhi Yi
With the development of big data mining and artificial intelligence technology, the big data analysis in power is more and more used. At present, the big data is composed of power multi-mode data mainly includes PMS system of power equipment management, Scada system of power data acquisition and monitoring control, online monitoring system of various equipment, patrol system, intelligent video monitoring system and so on. The scale and dimension of these data are huge. This paper is based on Internet of Things with Logistic Algorithms and Neural Network Algorithms. By analyzing and predicting the probability of power failure through real-time monitoring data, the state of the power equipment can be evaluated, the potential risks in power operation can be evaluated and predicted, and the active warning can be given to improve the security of the system.
随着大数据挖掘和人工智能技术的发展,大数据分析在电力领域的应用越来越广泛。目前,由电力大数据组成的多模式数据主要包括电力设备管理的PMS系统、电力数据采集与监控的Scada系统、各种设备的在线监控系统、巡检系统、智能视频监控系统等。这些数据的规模和维度是巨大的。本文是基于物联网的逻辑算法和神经网络算法。通过实时监测数据对停电概率进行分析和预测,评估电力设备的状态,评估和预测电力运行中的潜在风险,主动预警,提高系统的安全性。
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引用次数: 0
Optimization of Redundant Number of MMC Submodules in Flexible Control Device 柔性控制装置中MMC子模块冗余数的优化
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9436915
Zhoujun Ma, Yong Wang, Wentao Huang, Hao Tian, Jie Wang, Shaoyu Chen
Any submodule of the MMC in the flexible control device in failure will affect the normal operation of the system, thus affecting its reliability. Configuring redundant submodules for the MMC may significantly improve the reliability, but the mutual restriction of the reliability and economy is the key problem in the optimization of the redundant submodules’ number. In this article, the reliability and economy model of the MMC with redundant submodules are established, and the optimization function is established. The NSGAII optimization function are used to realize the optimization respectively. It can significantly improve the economy while meeting the system reliability. It provides ideas for the number allocation of the MMC redundant submodules in the actual MMC-HVDC project.
柔性控制装置中MMC的任何一个子模块发生故障都会影响系统的正常运行,从而影响其可靠性。配置冗余子模块可以显著提高系统的可靠性,但可靠性与经济性的相互制约是优化冗余子模块数量的关键问题。本文建立了具有冗余子模块的MMC的可靠性和经济性模型,并建立了优化函数。分别使用NSGAII优化函数实现优化。在满足系统可靠性的前提下,显著提高了系统的经济性。为实际MMC- hvdc工程中MMC冗余子模块的编号分配提供了思路。
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引用次数: 1
Design and Realization of a Lightning-induced Surge Current Monitoring System 雷击浪涌电流监测系统的设计与实现
Pub Date : 2021-04-01 DOI: 10.1109/ACPEE51499.2021.9437020
Yun-lei Shi, Hui Chen, E. Shao, Liangwen Li
A monitoring system, which is used to capture the surge current induced by the direct channel of lightning inside the aircraft, is introduced in this paper. The design parameters are first clarified by analyzing the waveform characteristics from existing standards. Through comparing several pulse current detecting methods, the Rogowski coil is considered appropriate and selected. The coil equivalent circuit model is constructed, and the design parameter of external-integral mode is described by time-frequency domain analysis. The optical transceiver is introduced from two aspects: principle circuit of electro-optical conversion or reverse and selection of core components. The external-integral Rogowski coil and optical transceiver are manufactured. The time domain coefficient of the coil and the frequency response characteristic of transceiver are calibrated respectively. The tested results indicate the presented monitoring system meets the requirement of 10−3 s pulse width, >103 A surge current detection.
本文介绍了一种用于捕捉飞机内部闪电直接通道产生的浪涌电流的监测系统。首先通过分析现有标准的波形特性来确定设计参数。通过对几种脉冲电流检测方法的比较,认为Rogowski线圈是合适的。建立了线圈等效电路模型,采用时频分析方法描述了外积分模式的设计参数。从光电转换或逆变的原理电路和核心器件的选择两方面介绍了光收发器。制造了外部集成Rogowski线圈和光收发器。分别对线圈的时域系数和收发器的频响特性进行了标定。测试结果表明,该监测系统满足10 ~ 3 s脉宽、>103 A浪涌电流检测的要求。
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引用次数: 0
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2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)
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