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2020 IEEE 4th International Conference on Intelligent Energy and Power Systems (IEPS)最新文献

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Multistage Active Distribution Network Integrated Planning Incorporating Energy Storage Systems and Active Network Management 结合储能系统和主动网络管理的多级主动配电网综合规划
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263121
Milad Kabirifar, M. Fotuhi‐Firuzabad, M. Moeini‐Aghtaie, Niloofar Pourghaderi
Active distribution network (ADN) expansion planning by modeling network active management is addressed in this paper. In this regard the expansion of distributed energy resources (DERs) and distribution network assets are jointly planned. In the proposed model active management is applied to efficiently utilize the DERs in the planning problem and alleviated the uncertainties. In this paper energy storage systems (ESSs) as an important DER are utilized in active management framework. To model active management of the network, based on load and renewable energy resources’ behavior, some operating levels are regarded for each planning time stage. The objective is to minimize the net present worth of investment, maintenance and operation costs for all planning stages and operating levels. As the problem is solved the expansion plans of network alternatives including feeders, transformers, and substations as long as DERs including micro turbines, wind turbines and ESSs are extracted. Furthermore, the optimal operations of the network and DERs are obtained through the operating levels. Associated uncertainties are considered using a correlated scenario based approach. The problem is mathematically modeled in the form of mixed integer linear programming (MILP).
本文研究了基于网络主动管理模型的主动配电网扩展规划问题。为此,联合规划分布式能源(DERs)和配电网资产的扩张。该模型采用主动管理的方法,有效地利用了规划问题中的需求因子,减轻了规划问题中的不确定性。本文将储能系统作为一种重要的分布式电源应用于主动管理框架。为了建立电网主动管理模型,基于负荷和可再生能源的行为,在每个规划时间阶段考虑一定的运行水平。目标是在所有规划阶段和操作水平上最小化投资、维护和操作成本的净现值。随着问题的解决,只要提取包括微型涡轮机、风力涡轮机和ess在内的der,就可以得到包括馈线、变压器和变电站在内的电网替代方案的扩建计划。在此基础上,通过操作层次得到网络的最优操作和der。使用基于相关情景的方法来考虑相关的不确定性。该问题以混合整数线性规划(MILP)的形式进行数学建模。
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引用次数: 2
Reliability Assessment of the Results of Periodic Monitoring of the Transformer Oils Condition 变压器油状态定期监测结果的可靠性评估
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263141
O. Shutenko, S. Ponomarenko
The paper presents a method to assess the reliability of the results of periodic monitoring of transformer oils. The verification of method efficiency by analysing real operating data is carried out. The causes of distortions in dependencies of oils quality indicators on the operating time have been analysed.
提出了一种评估变压器油定期监测结果可靠性的方法。通过对实际运行数据的分析,验证了方法的有效性。分析了油品质量指标对运行时间依赖关系失真的原因。
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引用次数: 8
Intellectual methods of comparing power generating objects 比较发电对象的智能方法
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263211
M. Hasanov, A. Zakovorotniy, S. Leonov, G. Khrypunov, V. Dmitrienko, A. Klochko
A new method of synthesizing neural network for comparing, identifying, and classifying various objects through bipolar encoding of their attributes is offered. The mentioned method broadens the neuron network applicability sphere for solving tasks of identification and classification due to the use of proximity functions applying finer proximity attributes for discrete objects than the Hemming’s distance.
提出了一种综合神经网络的方法,通过对物体属性进行双极编码,对物体进行比较、识别和分类。由于使用接近函数对离散对象应用比Hemming距离更精细的接近属性,该方法拓宽了神经元网络解决识别和分类任务的适用范围。
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引用次数: 2
Using mathematical modeling for determination the optimal geometric parameters of a pump-turbine water passage 利用数学模型确定水泵-水轮机水通道的最佳几何参数
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263139
K. Rezvaya, Cherkashenko Mikhaylo, Viktor Drankovskiy, Tynyanova Irina, V. Makarov
In this work, the method of non-dimension averaged parameters is applied. It allows to choose the optimal geometry of the elements of the water passage at the initial stages of designing a new reversible hydraulic machine or modernizing an existing one. This method has proved positive in the numerical study of high-head reversible hydraulic machines at pressures of 200 and 500 m. Using the method of non-dimension averaged parameters in calculation it is necessary to have geometric parameters only in the specific cross-sections of the water passage. This is very effective in terms of saving time and computational resources. In the course of the work, three variants of the water passage of the high-head low-speed reversible ORO500 hydraulic machine were investigated. As a result, it was determined that the geometry of the water passage’s elements significantly effects the hydraulic machine’s parameters. The highest losses value (62 %) is in the inlet (spiral casing with stator and wicket gate). Therefore, the parameters of these elements were changed. Hydraulic efficiency increased by 1.16 % results from changing the parameters of the spiral casing (increasing the average flow angle by 100). Changing the geometry of the wicket gate leads to additional increasing of efficiency by 0.84 %.
本文采用无量纲平均参数法。它允许在设计新的可逆液压机或对现有液压机进行现代化改造的初始阶段选择水通道元素的最佳几何形状。该方法在压力为200和500 m的高水头可逆液压机的数值研究中得到了验证。采用无量纲平均参数法计算时,只需要在水道的特定截面上有几何参数。这在节省时间和计算资源方面非常有效。在工作过程中,对ORO500高水头低速可逆液压机的三种变型水道进行了研究。结果表明,水道元件的几何形状对液压机的参数有显著影响。最大的损耗值(62%)是在进口(带定子和导叶的螺旋机匣)。因此,改变了这些元素的参数。通过改变螺旋机匣的参数(平均流动角增加100),水力效率提高了1.16%。改变导叶的几何形状可使效率额外提高0.84%。
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引用次数: 2
Development of multiparameter electromagnetic control and diagnostics of electrophysical parameters of power equipment 电力设备电物性参数多参数电磁控制与诊断研究进展
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263189
B. Gorkunov, Y. Borysenko, S. Lvov, Tamer Shaiban, I. Chahine
The paper observes further development of multi-parameter electromagnetic methods and devices, in terms of obtaining the most complete information about the object under test, which is an actual scientific and practical task. Basing on this approach the authors consider the development of new types of multi-parameter electromagnetic transducers with probing magnetic field with spatial-periodical structure. Authors developed mathematical expressions for the normalized values of amplitude and phase of the spatial harmonic of the transducer signals, induced in the measuring windings, located along the surface of a cylindrical object under test. In result authors derived universal conversion functions for the input values of amplitude and phase of the harmonic component of the transducer, estimated the sensitivity of the transducer and defined rational modes of its operation.
从获取被测对象最完整的信息角度出发,观察了多参数电磁方法和设备的进一步发展,这是一项实际的科学和实用任务。在此基础上,作者考虑了新型空间周期结构探测磁场的多参数电磁换能器的研制。作者对位于被测圆柱形物体表面的测量绕组中产生的换能器信号的空间谐波的幅度和相位的归一化值提出了数学表达式。结果推导了换能器谐波分量的幅值和相位输入的通用转换函数,估计了换能器的灵敏度,定义了换能器的合理工作模式。
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引用次数: 0
Optimal Placement of Actuator for Vibration Suppression Based on Intelligent PID Controller 基于智能PID控制器的作动器抑振优化布置
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263178
M. S. Hadi, Nadzirah Mohd Mokhtar, I. Z. Mat Darus
Many attempts have been proposed by the previous researchers due to reduce the undesired vibration by considering several control strategies. The simplest way in reducing the vibration is to build more rigid structure so that less vibration will be produced. Nevertheless, this strategy is usually not applicable since the structures are need high power consumption and limitation in operation speed. Furthermore, it becomes a growing trend among the industries to use light weight of mechanical structure known as flexible plate. However, the critical problem faced by the industries is vibration on the structure that can lead to structural damage. Hence, this research presents the optimal placement of actuator and sensor on the experimental rig for vibration cancelation of the flexible plate structure based on intelligent PID controller. The PID controller tuned by artificial bee colony (ABC) algorithm was used to control the undesired vibration on the structure. The robustness of developed controller was validated by varying the position of actuator on the experimental rig. It was indicated that point A2 leads to the good attenuation level by achieving highest attenuation value at the first mode of vibration with 28.83 dB which is equivalent to 21.62 % attenuation, after the introduction of vibration control.
由于考虑了多种控制策略来减少非期望振动,前人已经提出了许多尝试。减少振动最简单的方法是建立更刚性的结构,以减少振动的产生。然而,由于结构功耗高,运行速度受限,这种策略通常不适用。此外,使用被称为柔性板的轻量化机械结构已成为工业发展的趋势。然而,行业面临的关键问题是结构上的振动可能导致结构损坏。因此,本研究提出了基于智能PID控制器的柔性板结构减振作动器和传感器在实验台上的最佳位置。采用人工蜂群(ABC)算法自整定PID控制器控制结构的非期望振动。通过改变作动器在实验台上的位置,验证了所设计控制器的鲁棒性。结果表明,在引入振动控制后,A2点在第一振动模态达到了最高的衰减值28.83 dB,相当于21.62%的衰减,达到了较好的衰减水平。
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引用次数: 0
Wide ZVS Range Full-Bridge DC-DC Converter with Quasi-Resonant Switching 具有准谐振开关的宽ZVS范围全桥DC-DC变换器
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263222
V. Ivakhno, V. Zamaruiev, B. Styslo, A. Blinov, D. Vinnikov, R. Kosenko
The article presents a control algorithm of a bidirectional isolated converter with insulated gate bipolar transistors (IGBT). The primary stage of the converter is a traditional full-bridge voltage-source inverter (Voltage-Fed, VF) based on IGBT with reverse diodes shunted by snubber capacitors. The secondary stage is based on IGBT with reverse diodes full-bridge Current-Fed (CF) inverter and a bidirectional four-quadrant power switch (FQS) based on two IGBT with reverse diodes is connected in series with the transformer. For the energy transfer mode from the VF stage to the CF stage, a separated-commutation switching algorithm that provides a zero current switching (ZCS) turn-off mode and an inductive snubber turn-on mode for the CF switches, and a zero-voltage-switching (ZVS) and capacitive snubber turn-off mode for the VF switches is described. Leakage inductance of the transformer is used as an inductive snubber. When the transistors of the VF stage are turning-off, an additional, in comparison with the known solutions, forced switching-on of the CF stage main transistors on the interval of half-period provides a resonant overcharge of the snubber capacitors. This ensures the ZVS mode of turning on of the VF stage transistors in a wide range of load current changes, up to idle mode. The proposed ideas are verified with simulations in MATLAB. The topology is proposed for high power battery energy storage systems.
本文提出了一种采用绝缘栅双极晶体管(IGBT)的双向隔离变换器的控制算法。该变换器的一级是传统的基于IGBT的全桥电压源逆变器(Voltage-Fed, VF),其反向二极管由缓冲电容器并联。二级是基于带反向二极管的IGBT全桥电流馈送(CF)逆变器,一个基于两个带反向二极管的IGBT的双向四象限功率开关(FQS)与变压器串联。对于从VF级到CF级的能量传递模式,描述了一种分离换流开关算法,该算法为CF开关提供零电流开关(ZCS)关断模式和电感缓振开断模式,为VF开关提供零电压开关(ZVS)和电容缓振关断模式。变压器的漏感用作电感缓冲器。当VF级的晶体管关断时,与已知的解决方案相比,在半周期间隔内强制接通CF级主晶体管会使缓冲电容器产生谐振过充。这确保了VF级晶体管在大范围负载电流变化下的ZVS模式,直到空闲模式。在MATLAB中进行了仿真验证。提出了用于大功率电池储能系统的拓扑结构。
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引用次数: 0
Localization of the Phase Voltage Measurement Location for Active Power Filter Controlling 有源电力滤波器控制中相位电压测量位置的定位
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263137
D. Tugay, S. Korneliuk, Valentyn Akymov, G. Zhemerov
The quality of compensation of harmonic distortions for network voltages and currents by means of the power active filter depends on the control system settings. The difference in quality indicators of power supply when placing phase sensors of the network to generate a reference signal for two possible cases – on the network terminals and on the load terminals (at the point of load connection) is showed in the paper. It is proved that in asymmetrical modes of three-phase power supply system operation the placement of phase voltage sensors on load terminals leads to a decrease in the efficiency, shift coefficient and an increase in the THD of a network phase voltages and currents in comparison with the second case. The developed theoretical propositions using the modeling of power supply system with power active filter in Matlab environment are confirmed.
电力有源滤波器对电网电压和电流谐波畸变的补偿质量取决于控制系统的设置。本文给出了在网络端和负载端(负载连接点)两种可能的情况下,放置网络相位传感器产生参考信号时,供电质量指标的差异。证明了在三相供电系统的非对称运行模式下,在负载端放置相电压传感器会导致网络相电压和电流的效率、移位系数降低,THD增加。在Matlab环境下对带电源有源滤波器的供电系统进行建模,验证了所提出的理论命题。
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引用次数: 2
Experimental Research of the Electrical Strength of the Insulated System “Protected Wire-Line Insulator” 绝缘系统“保护线绝缘子”电气强度的实验研究
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263212
S. Shevchenko, D. Danylchenko, S. Dryvetskyi
The purpose of the article is to develop a method for determining the electrical strength of the system "wire insulation - line insulator", to conduct experimental studies of the electrical strength of the insulation of this system, to obtain values of the electrical strength of the insulation of the wires with a protective coating, which will be able to clarify the parameters of the resistance of overhead power transmission lines.
本文的目的是建立一种确定“导线绝缘-线路绝缘子”系统电强度的方法,对该系统的绝缘电强度进行实验研究,得到涂有保护涂层的导线的绝缘电强度值,从而能够明确架空输电线路的电阻参数。
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引用次数: 7
Switching Effects from a High-Resistance State to a High Electrical Conductivity State in Mo/P-Cdte/Mo Structure Mo/P-Cdte/Mo结构从高电阻状态到高导电性状态的切换效应
Pub Date : 2020-09-07 DOI: 10.1109/IEPS51250.2020.9263081
A. Drozdov, G. Khrypunov, V. O. Nikitin, A. Meriuts, M. Khrypunov, M. Kirichenko, R. Zaitsev
The time-voltage characteristics of high-resistance Mo/p-CdTe/Mo structures under influence of single voltage pulses in range from 20 to 80 V and duration up to 30 ns were studied. We established that for high-resistivity Me-A2B6-Me structures, a restorable switching into a high electrical conductivity state can be realized as the effect of current pulses duration up to 30 ns and no more than 20 V voltage amplitude. It has been proposed the physical mechanism that leads to realizing switching effect. Such time-voltage characteristic allows to conclude that such Me-A2B6-Me structures is perspective for use as keys and switching elements of micro- and nanosystem technology.
研究了高阻Mo/p-CdTe/Mo结构在20 ~ 80 V、30 ns单电压脉冲作用下的时间电压特性。我们发现,对于高电阻率的Me-A2B6-Me结构,在电流脉冲持续时间为30 ns,电压幅值不大于20 V的作用下,可以实现恢复切换到高导电性状态。提出了开关效应实现的物理机制。这样的时间电压特性使我们可以得出这样的结论:这种Me-A2B6-Me结构有望用作微纳米系统技术的关键和开关元件。
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引用次数: 0
期刊
2020 IEEE 4th International Conference on Intelligent Energy and Power Systems (IEPS)
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