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2019 International Power System Conference (PSC)最新文献

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A Compression Study on 400 V and 690 V Electrical Motors Utilized in ACC Systems of CCPP CCPP ACC系统中400v和690v电机的压缩研究
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081443
Mohammad Ali. Hadi, Iraj. Fallahi, Saeid. Fallahi
The most common voltage used in power plants to supply LV electrical distribution system is 400 V. However, the adoption of a higher voltage level presents some advantages, mainly in terms of capital cost and network efficiency improvement. The target of this compression study is to show the advantages of replacement of 690 V electric motors instead of 400 V in Air Cooled Condenser (ACC) fan. The results of the compression are conformed by computer simulations.
发电厂供电低压配电系统最常用的电压是400v。然而,采用更高的电压等级有一些优势,主要是在资金成本和提高网络效率方面。本压缩研究的目的是展示用690 V的电动机代替400 V的空冷冷凝器(ACC)风扇的优势。计算机模拟结果与压缩结果一致。
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引用次数: 0
A Novel Extendable Single-Switch Quadratic-Based High Step-Up DC-DC Converter 一种新型可扩展单开关二次型高升压DC-DC变换器
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081552
K. Varesi, M. Ghorbani
In this paper a developed quadratic based high step-up DC-DC topology has been proposed that can be extended to achieve higher voltage conversion ratios. Due to utilization of only one switch, there are only two modes of operation and only one gate driver circuit is required. These properties lead to simple control and low volume and expense of proposed topology. The suggested configuration has higher gain per number of devices in comparison with other similar structures, which can lead to reduced expense, volume and weight of converter. Also, the continuous input current of suggested configuration candidates it for Photo Voltaic (PV) applications, where the Maximum Power Point Tracking (MPPT) is essential. Modularity and low blocking voltage on switches/diodes are another advantages of proposed topology. The suggested topology has been compared with recently presented novel structures and simulated in PSCAD/EMTDC. The comparison and simulation results prove the correct operation and suitability of suggested configuration.
本文提出了一种基于二次型的高升压DC-DC拓扑,可以扩展到更高的电压转换比。由于只使用一个开关,因此只需要两种工作模式,并且只需要一个栅极驱动电路。这些特性使得所提出的拓扑结构控制简单、体积小、费用低。与其他类似结构相比,所建议的配置具有更高的每数量器件增益,从而可以减少转换器的费用,体积和重量。此外,建议配置的连续输入电流适合光伏(PV)应用,其中最大功率点跟踪(MPPT)是必不可少的。模块化和开关/二极管上的低阻塞电压是该拓扑结构的另一个优点。将所提出的拓扑结构与最近提出的新结构进行了比较,并在PSCAD/EMTDC中进行了仿真。对比和仿真结果证明了所建议配置的正确性和适用性。
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引用次数: 2
Pragmatic Industrial Augmented Reality in Electric Power Industry 电力行业实用工业增强现实技术
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081538
Zahra Alavikia, Maryam Shabro
Organizing and presenting necessary information to electric power workforces just-in-time is a challenging issue. Today Electric Power Industry (EPI) severely suffers from the lack of sufficient knowledge of young workforces at the field. Current offline paper-based training methods or voice call assistants rarely able to help these workforces in a disaster situation. Recently industrial Augmented Reality (AR) tools open new insight for remote assistance through virtualizing necessary information on the real environment. That is, using AR tools, field workforces can observe required information just-in-time and in-location in front of their eyes. Here, one question is how AR technology will change the EPI. To answer this question and shape the power stakeholders' viewpoint in the adaption of industrial AR, we precisely review the potential use cases and case studies of pragmatic industrial AR in the EPI in this paper. To the best of our knowledge, this paper is one of the first comprehensive studies of AR opportunities in the EPI. Studies in this paper show that AR applications in the EPI is in the infancy stage and needs remarkable consideration to develop AR tools in accordance with the electric power requirements.
及时组织并向电力工作人员提供必要的信息是一个具有挑战性的问题。今天,电力工业(EPI)严重遭受缺乏足够的知识的年轻劳动力在该领域。目前的离线纸质培训方法或语音呼叫助手很少能够在灾难情况下帮助这些员工。最近,工业增强现实(AR)工具通过虚拟化真实环境中的必要信息,为远程辅助提供了新的见解。也就是说,使用AR工具,现场工作人员可以在他们眼前及时地观察到所需的信息。在这里,一个问题是增强现实技术将如何改变EPI。为了回答这个问题并塑造权力利益相关者对工业AR适应的看法,我们在本文中精确地回顾了EPI中实用工业AR的潜在用例和案例研究。据我们所知,本文是EPI中AR机会的第一个全面研究之一。本文的研究表明,AR在EPI中的应用还处于起步阶段,需要考虑开发符合电力需求的AR工具。
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引用次数: 3
Optimal sizing of hybrid PV/T-fuel cell CHP system using a heuristic optimization algorithm 基于启发式优化算法的光伏/燃料电池热电联产系统规模优化
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081541
Farzaneh Bernoosi, M. Nazari
Renewable energy resources could be integrated with other combined heat and power (CHP) systems in remote areas. For PV/T panels as a renewable CHP, energy storage systems such as fuel cell are necessary. In this study, optimal sizing of hybrid PV/T-fuel cell is developed. A heuristic optimization algorithm is used and, the simulation results are presented for two case studies. It is shown that using PV/T as CHP system total cost is reduced as compared with separated heat and power. Also, hybrid PV/T-fuel cell results in total cost reduction due to capability of fuel cell to store electrical and heat energy.
可再生能源可以与偏远地区的其他热电联产(CHP)系统相结合。对于作为可再生热电联产的光伏/T面板,燃料电池等储能系统是必要的。本文研究了PV/ t -燃料混合电池的最佳尺寸问题。采用启发式优化算法,给出了两个实例的仿真结果。结果表明,与热电分离相比,采用PV/T作为热电联产系统的总成本降低。此外,由于燃料电池能够储存电能和热能,混合PV/ t燃料电池可以降低总成本。
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引用次数: 7
Passive Regulation of Switching Frequency in Voltage Source Converter via Predictive Control 基于预测控制的电压源变换器开关频率无源调节
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081470
Seyed-Saeed Zabihi, M. Asadi
This article deals with a regulation method of switching frequency in voltage source converters based on finite set-predictive control. The proposed method directly influences on the main performances such as power losses reduction and improvement of power quality (i.e. THD). In the regulation method a modifying term, representing elapsed time, is added to a cost function that is multiplied by a weighting factor. By proper determination of this weighting factor, the switching frequency could be changed to determined pattern. The proposed method is simple and does not affect controller response time, and operate properly during all operating points. The results show that it can improve THD index under a certain point, or maintain the switching frequency in a certain bound.
本文研究了一种基于有限集预测控制的电压源变换器开关频率调节方法。所提出的方法直接影响到降低功率损耗和提高电能质量(即THD)等主要性能。在调节方法中,将表示经过时间的修改项添加到乘以加权因子的成本函数中。通过适当地确定该权重因子,可以将开关频率改变为确定的模式。该方法操作简单,不影响控制器响应时间,且在各工作点均能正常运行。结果表明,该方法可以在一定范围内提高THD指标,或保持开关频率在一定范围内。
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引用次数: 0
Effects of Implementing Demand Response Programs in Microgrids in the Presence of Renewable Energy Resources and Energy Storage Systems 在可再生能源和储能系统存在的微电网中实施需求响应计划的影响
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081544
A. Nikzad, S. Afsharnia
Sometimes renewable energy resources (RERs), energy storage systems (ESSs), and responsive loads are applied to reduce the generated power of fossil fuel distributed generators (DGs) which are costly and produce environmental pollutants. Therefore, the optimized microgrid planning is necessary for minimizing the cost and pollution caused by DGs. It also helps in optimizing the use of RERs and ESSs along with the implementation of demand response programs (DRPs). To minimize cost and pollution in the microgrid simultaneously, the multi-objective optimization is used. The problem is a non-convex and nonlinear optimization problem, which needs to be linearized. A linearization method is presented to transform the nonlinear model to a linear one. The problem can be solved by the mixed-integer linear programming (MIP) formulation. During peak hours, the amount of spinning reserve and consequently the reliability of the system decreases. In the following, using time-based and incentive-based DRP, the amount of load consumption in the peak hours decreases with the help of load shifting, or peak shaving incentives. This will increase spinning reserve and reduce the loss in peak hours, which results in reliability increase.
有时,可再生能源(RERs)、储能系统(ess)和响应负载被应用于减少化石燃料分布式发电机(dg)的发电功率,这些发电机成本高昂且会产生环境污染物。因此,优化微电网规划是实现微电网成本和污染最小化的必要条件。它还有助于优化rrs和ess的使用以及需求响应计划(DRPs)的实施。为了使微电网的成本和污染同时最小化,采用了多目标优化方法。该问题是一个非凸非线性优化问题,需要进行线性化处理。提出了一种将非线性模型转化为线性模型的线性化方法。该问题可以用混合整数线性规划(MIP)公式来求解。在用电高峰时段,旋转备用量降低,系统可靠性降低。在下面,使用基于时间和基于激励的DRP,在负荷转移或调峰激励的帮助下,高峰时段的负荷消耗量减少。这样可以增加纺纱储备,减少高峰时段的损耗,从而提高可靠性。
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引用次数: 2
A Novel Optimal Planning Between Generation and Transmission Expansion Planning Considering Security Constraint 一种考虑安全约束的发电与输电扩展规划最优方案
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081547
M. Z. Jahromi, Mohsen Tajdinian, M. Jahromi
The present paper proposes a novel approach to solve strategic expansion problems between generation and transmission companies when it considers security constraints of power network such as transient stability and voltage stability of the system. Generally, in previous studies, generation expansion planning (GEP) and transmission expansion planning (TEP) are solved in a restructuring environment of power market without considering the security constraint of the power system. Hence, the proposed approach definites voltage stability index and security stability index as a security constraint of the system at the first step. Afterward, an objective function for GEP and TEP problem is formulated considering the security constraints. Eventually, the objective function is optimized by particle swarm optimization algorithm and the optimum expansion planning of generation and transmission are determined. Several case studies have been carried out to evaluate the performance of the proposed spruce. The results clearly demonstrate that the proposed method solve GEP and TEP problem when it considers economic and security objectives in a competitive electricity market.
本文在考虑电网暂态稳定和电压稳定等安全约束的情况下,提出了一种解决发电和输电公司之间战略扩容问题的新方法。在以往的研究中,发电扩容规划(GEP)和输电扩容规划(TEP)一般都是在电力市场重构环境下求解,没有考虑电力系统的安全约束。因此,该方法首先确定了电压稳定指标和安全稳定指标作为系统的安全约束。在此基础上,建立了考虑安全约束的GEP和TEP问题的目标函数。最后利用粒子群算法对目标函数进行优化,确定了最优的发电和输电扩展规划。已经进行了几个案例研究,以评估拟议的云杉的性能。结果清楚地表明,该方法在考虑竞争电力市场的经济和安全目标的情况下,解决了GEP和TEP问题。
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引用次数: 0
Sliding Mode Based Consensus For Networked Multi-agent Systems Consisting Of Chaotic PMSMs 混沌pmsm组成的网络化多智能体系统的滑模一致性
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081474
Mehraan Derakhshannia, S. Moosapour
In this paper, the consensus of multi-agent systems consist of chaotic permanent magnet synchronous motors (PMSM) has been studied. It is assumed that external disturbances affect the PMSMs, so a robust protocol based on dynamic sliding mode control has been proposed that ensures consensus of multi-agent systems and the stability is investigated by Lyapunov theory. Then an extended state observer (ESO) is proposed to estimate the upper bounds of disturbances which cause a more accurate response in sliding mode control. In the end, simulations show the effectiveness of the proposed methods.
研究了混沌永磁同步电动机多智能体系统的一致性问题。在假定外部扰动影响永磁同步电动机的前提下,提出了一种基于动态滑模控制的鲁棒协议,保证了多智能体系统的一致性,并利用李雅普诺夫理论研究了该协议的稳定性。然后提出了一种扩展状态观测器(ESO)来估计干扰的上界,从而使滑模控制的响应更加精确。最后,通过仿真验证了所提方法的有效性。
{"title":"Sliding Mode Based Consensus For Networked Multi-agent Systems Consisting Of Chaotic PMSMs","authors":"Mehraan Derakhshannia, S. Moosapour","doi":"10.1109/PSC49016.2019.9081474","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081474","url":null,"abstract":"In this paper, the consensus of multi-agent systems consist of chaotic permanent magnet synchronous motors (PMSM) has been studied. It is assumed that external disturbances affect the PMSMs, so a robust protocol based on dynamic sliding mode control has been proposed that ensures consensus of multi-agent systems and the stability is investigated by Lyapunov theory. Then an extended state observer (ESO) is proposed to estimate the upper bounds of disturbances which cause a more accurate response in sliding mode control. In the end, simulations show the effectiveness of the proposed methods.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123967067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Compensating Stator Transient Flux during Symmetric and Asymmetric Faults using Virtual Flux based on Demagnetizing Current in DFIG Wind Turbines 基于退磁电流的虚拟磁通补偿DFIG风机对称和非对称故障时定子暂态磁通
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081565
M. J. Harandi, Sahand Liasi, M. Bina
Under normal working conditions, the stator flux of doubly-fed induction generators only includes the forced component; thus, controllers are mainly designed in accordance to this component. During fault conditions, in addition to this component, the zero sequence component appears. Under this new condition, the conventional control strategies cannot control the DFIG properly. So, the induced voltage in the rotor windings increases, which leads to the rotor current overshoot, overvoltage of DC link and mechanical stress caused by electromagnetic torque oscillations. In this article, a new control strategy is presented that fulfills low voltage ride through requirements by using virtual flux based on demagnetizing current. This method can improve the transient response of the stator flux during symmetric and asymmetric faults by creating a demagnetizing current to meet the grid code requirements. Finally, the validity of the proposed method is verified by the simulation results for a 1.5 MW wind turbine in MATLAB/SIMULINK environment and the results have been discussed and analyzed in the last section of the article to show the proficiency of the proposed method.
在正常工况下,双馈感应发电机的定子磁通仅包含受迫分量;因此,控制器主要是按照这个组件来设计的。在故障条件下,除了该分量外,还出现了零序分量。在这种新条件下,传统的控制策略已不能很好地控制DFIG。因此,转子绕组中的感应电压升高,导致转子电流超调,直流环节过电压和电磁转矩振荡引起的机械应力。本文提出了一种基于退磁电流的虚拟磁通控制策略,以满足低电压穿越要求。该方法通过产生满足电网规范要求的退磁电流,改善了对称和非对称故障时定子磁链的瞬态响应。最后,在MATLAB/SIMULINK环境下对1.5 MW风力发电机组的仿真结果验证了所提方法的有效性,并在文章的最后一节对结果进行了讨论和分析,以显示所提方法的熟练程度。
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引用次数: 3
Modeling, designing, and fabrication of a real-time wind energy conversion into mechanical torque of a wind turbine simulators based on power electronic converters 基于电力电子变换器的风力涡轮机模拟器的实时风能转换为机械扭矩的建模、设计和制造
Pub Date : 2019-12-01 DOI: 10.1109/PSC49016.2019.9081486
Amin Siahchehreh Badeli, F. Ashrafi, G. Gharehpetian, M. S. Naderi, Behzad Heydari Amirkhizi
Due to the variability of wind energy and its inaccessibility in vitro condition, the use of Wind Turbine Simulator (WTS) is essential for research and development in the field of wind systems. With the assistance of WTSs, the performance of wind energy conversion systems can be investigated under different circumstances without the need for ambient conditions for each wind turbine. This paper is part of a research project to design and fabricate a grid-connected 3 kW WTS which is coupled to an Axial Flux Permanent Magnet Synchronous Generator (AFPMSG); intending to model, design and fabricate a wind energy conversion into a mechanical torque simulator based on real-time power electronics converters. The interface system of wind energy conversion to mechanical torque includes the data collection system, the calculation of the corresponding reference values for the three-phase inverter, the induction motor (IM) drive system (three-phase inverter), and the IM with the step-down gearbox. The purpose of this part is to generate power and speed in the rotor shaft of the IM equivalent with that of the real wind turbine rotor. As a result, the performance of the wind turbine is reasonably replicated by the IM, the drive system, and the developed software.
由于风能的可变性及其在体外条件下的不可获得性,使用风力涡轮机模拟器(WTS)对于风力系统领域的研究和开发至关重要。在WTSs的帮助下,可以在不同的情况下研究风能转换系统的性能,而不需要每个风力机的环境条件。本文是设计和制造与轴向磁通永磁同步发电机(AFPMSG)耦合的并网3kw WTS研究项目的一部分;拟对基于实时电力电子变换器的风能转换成机械转矩模拟器进行建模、设计和制造。风能转换为机械转矩的接口系统包括数据采集系统、三相逆变器对应参考值的计算、感应电机(IM)驱动系统(三相逆变器)、带降压齿轮箱的IM。该部分的目的是在IM的转子轴上产生与真实风力发电机转子相当的功率和转速。因此,风力发电机的性能被IM、驱动系统和开发的软件合理地复制。
{"title":"Modeling, designing, and fabrication of a real-time wind energy conversion into mechanical torque of a wind turbine simulators based on power electronic converters","authors":"Amin Siahchehreh Badeli, F. Ashrafi, G. Gharehpetian, M. S. Naderi, Behzad Heydari Amirkhizi","doi":"10.1109/PSC49016.2019.9081486","DOIUrl":"https://doi.org/10.1109/PSC49016.2019.9081486","url":null,"abstract":"Due to the variability of wind energy and its inaccessibility in vitro condition, the use of Wind Turbine Simulator (WTS) is essential for research and development in the field of wind systems. With the assistance of WTSs, the performance of wind energy conversion systems can be investigated under different circumstances without the need for ambient conditions for each wind turbine. This paper is part of a research project to design and fabricate a grid-connected 3 kW WTS which is coupled to an Axial Flux Permanent Magnet Synchronous Generator (AFPMSG); intending to model, design and fabricate a wind energy conversion into a mechanical torque simulator based on real-time power electronics converters. The interface system of wind energy conversion to mechanical torque includes the data collection system, the calculation of the corresponding reference values for the three-phase inverter, the induction motor (IM) drive system (three-phase inverter), and the IM with the step-down gearbox. The purpose of this part is to generate power and speed in the rotor shaft of the IM equivalent with that of the real wind turbine rotor. As a result, the performance of the wind turbine is reasonably replicated by the IM, the drive system, and the developed software.","PeriodicalId":359817,"journal":{"name":"2019 International Power System Conference (PSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129761288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
2019 International Power System Conference (PSC)
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