2021 Ural-Siberian Smart Energy Conference (USSEC)最新文献_第2页

Investigation of Energy Storage Systems - Improvement of Utilization by Use Case Combination 储能系统的研究——通过用例组合提高利用率

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655735

Lukas Böhning, Mathias Herget, U. Schwalbe

{"title":"Investigation of Energy Storage Systems - Improvement of Utilization by Use Case Combination","authors":"Lukas Böhning, Mathias Herget, U. Schwalbe","doi":"10.1109/USSEC53120.2021.9655735","DOIUrl":"https://doi.org/10.1109/USSEC53120.2021.9655735","url":null,"abstract":"Battery storage systems are frequently used in the stationary sector in the areas of self-consumption optimization of renewable generation plants, reducing peak loads, uninterruptible power supply, frequency control reserve, and in several other areas. Separately, the applications can be used for the economic operation of an energy storage system. With the intention to increase the economic revenues opportunities must be found to combine the application possibilities. In this paper a method for the analysis of energy storage algorithms by analyzing the power and capacity profiles is presented. The goal is to find out time windows where the use of different energy storage algorithms is possible. By analyzing the power and storage level curves, this utilization can also analyze whether parallel utilization is possible. This utilization analysis can be used to develop a predictive control algorithm that can use the forecast-based utilization analysis to decide which deployment options can be used most economically. The development of such an algorithm is the next step and will be presented in a later paper. The elaboration relates to the purely theoretical analysis of the load profiles. The development of an energy management system with this functionality will be presented in another paper. The results show that the utilization and the economic efficiency can be significantly increased by combining the application possibilities in this theoretical consideration. Consequently, the presented approach results in some advantages and disadvantages which will be discussed in detail in the conclusion.","PeriodicalId":260032,"journal":{"name":"2021 Ural-Siberian Smart Energy Conference (USSEC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114172409","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

Adjusting the Requirements to the Allowable Current and Voltage Error in Active Power Systems 有功电力系统对允许电流电压误差要求的调整

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655728

P. Ilyushin, A. Kulikov, K. Suslov, A. Sevostyanov

{"title":"Adjusting the Requirements to the Allowable Current and Voltage Error in Active Power Systems","authors":"P. Ilyushin, A. Kulikov, K. Suslov, A. Sevostyanov","doi":"10.1109/USSEC53120.2021.9655728","DOIUrl":"https://doi.org/10.1109/USSEC53120.2021.9655728","url":null,"abstract":"An active customer-side (electric) power system is one that features integrated distributed generation (DG) facilities and energy storage systems (ESS). This improves customers' energy security as they can reduce the intake of electricity from the power system within certain timeframes. Besides, this approach enables more efficient use of primary and secondary energy resources for better energy efficiency and conservation. An active power system (APS) may have a great variety of diverse operating conditions that effectively prevent any visual recognition and manual control of its operating modes; besides, they require automatic real-time process control. Such circumstances call for adjustments in the requirements to the structure of communication networks, metering and instrumentation systems, power system protections, monitoring and control systems. The algorithms that are used by phasor measurement units (PMU) and PMU-based smart devices (SD) to estimate current and voltage parameters are of fundamental importance. Active power systems are more demanding with respect to electric power quality and measurement accuracy. Calculations herein show the need to lower the allowable margin of voltage and current error in PMUs, as the existing requirements are not consistent with the functioning of active power systems. The paper analyzes how signals are processed digitally when there are short frequency fluctuations in a wide dynamic range, and how distortion factors affect the sine wave of currents and voltages.","PeriodicalId":260032,"journal":{"name":"2021 Ural-Siberian Smart Energy Conference (USSEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129854332","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

An Improved Method of Electric Braking for Power System Transient Stability in Severe Emergency Disturbances 电力系统在严重紧急扰动下暂态稳定的改进电制动方法

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655743

Aleksandr P. Dolgov, A. Arestova

{"title":"An Improved Method of Electric Braking for Power System Transient Stability in Severe Emergency Disturbances","authors":"Aleksandr P. Dolgov, A. Arestova","doi":"10.1109/USSEC53120.2021.9655743","DOIUrl":"https://doi.org/10.1109/USSEC53120.2021.9655743","url":null,"abstract":"The paper deals with the problem of maintaining the transient stability of the electric power system under severe emergency disturbances. The relevance of the study is due to the continuity of the processes of production, transmission, and consumption of electric power. The lack of energy storage technologies in the volumes necessary for the consumer causes increased requirements for power system reliability, transient stability, and survivability. The paper provides an overview of the existing and modern developed methods of increasing transient stability. An improved method of electric braking for synchronous generators is proposed, which provides transient stability under severe disturbances of any severity and duration. The method ensures successful resynchronization under generator loads up to the steady-state stability limit for the post-emergency conditions. A description of the method of electrical braking is presented, which requires precision synchronization with control of voltages, angles, and slip between synchronizing zones. The results of the developed method implementation for a two-machine system are illustrated, transient oscillograms are shown. Mathematical modeling was performed using the Mustang software package. The results of mathematical modeling prove the effectiveness of the proposed method. The developed method of electric braking makes it possible to refuse additional network construction to meet the requirements for transient stability.","PeriodicalId":260032,"journal":{"name":"2021 Ural-Siberian Smart Energy Conference (USSEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131184853","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

2021 Ural-Siberian Smart Energy Conference [Committee Members] 2021乌拉尔-西伯利亚智能能源会议[委员会成员]

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/ussec53120.2021.9655738

引用次数: 0

Analysis of Transient Processes in a Three-Phase Single-Machine System with a High- Temperature Superconducting Transformer 带高温超导变压器的三相单机系统瞬态过程分析

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655739

V. Manusov, D. Ivanov, A. Semenov

{"title":"Analysis of Transient Processes in a Three-Phase Single-Machine System with a High- Temperature Superconducting Transformer","authors":"V. Manusov, D. Ivanov, A. Semenov","doi":"10.1109/USSEC53120.2021.9655739","DOIUrl":"https://doi.org/10.1109/USSEC53120.2021.9655739","url":null,"abstract":"The paper presents the results of a study of thermal and electromagnetic transients in an electric power system with a high-temperature superconducting transformer. A physical prototype of a three-phase high-temperature superconducting transformer with YBCO windings is developed to study the current limiting process. Liquid nitrogen is used as a dielectric medium and a coolant. A mathematical model of a three-phase single-machine system with a high-temperature superconducting transformer is developed. It allows to analytically describe the electromagnetic transient process in a three-phase grid with a superconducting transformer, to estimate the electrodynamic and thermal effects of the short-circuit current with varying load and short-circuit types. The positive effect of superconducting transformers on the operating modes of the electric power system is shown. The analysis of the current limiting function of a high-temperature superconducting transformer is carried out; its efficiency and safety for the electric power system are proved. The research of the influence of the load type and the short-circuit mode on the current limitation level is carried out. It is demonstrated that during the short-circuit current limitation, significant heat flows occur on the windings, which should not exceed the critical value above which the superconductor could not return to the superconducting state by itself.","PeriodicalId":260032,"journal":{"name":"2021 Ural-Siberian Smart Energy Conference (USSEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130076311","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

[Title page] (标题页)

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/ussec53120.2021.9655755

引用次数: 0

[Copyright notice] (版权)

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/ussec53120.2021.9655744

引用次数: 0

Methods for Formation and Tunning of Group Prognostic Controller of Hydrogenerators Rotors' Rotational Frequency 水轮发电机转子转速群预测控制器的形成与调试方法

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655741

Yu. N. Bulatov, A. Kryukov, K. Suslov

{"title":"Methods for Formation and Tunning of Group Prognostic Controller of Hydrogenerators Rotors' Rotational Frequency","authors":"Yu. N. Bulatov, A. Kryukov, K. Suslov","doi":"10.1109/USSEC53120.2021.9655741","DOIUrl":"https://doi.org/10.1109/USSEC53120.2021.9655741","url":null,"abstract":"The application of a large number of distributed generation plants, built on the basis of synchronous generators in electric energy system (EES), requires solving the problem of their centralized control, adjustment of local controllers and stabilization of alternating current frequency, which entails taking into account a large number of interrelated system parameters. For example, the use of several hydrogenerators in a small-scale HPP requires solving problems of distribution and optimization of their load, as well as group control. These problems can be solved using prognostic control algorithms. Below is a description of the method to control the frequency of a group of low power synchronous hydrogenerators, the description of computer models of DG plants and the proposed group power controller of prognostic type, as well as the simulation results in the modes of additional powerful load connection and disconnection from EES. The research was conducted in MATLAB environment. The aim was to determine the effectiveness of group control of prognostic speed controllers of several hydrogenerators of the same type in emergency and post-emergency modes. The results of computer simulation indicate that the use of prognostic controllers reduces overshoot, oscillability index and transient time for voltage, rotational frequency and frequency in the normal and emergency conditions. The proposed methods of formation and tunning the group prognostic speed controllers allow to improve quality indices of small-scale HPP voltage and frequency control, while retaining the former settings of the local controllers.","PeriodicalId":260032,"journal":{"name":"2021 Ural-Siberian Smart Energy Conference (USSEC)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121431967","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

Long-term Wind Power Development in Morocco: Optimality Assessment using Bottom-up Modeling 摩洛哥长期风电发展:基于自下而上模型的最优性评估

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655736

Jabrane Slimani, Abdeslam Kadrani, I. El harraki, E. Ezzahid

{"title":"Long-term Wind Power Development in Morocco: Optimality Assessment using Bottom-up Modeling","authors":"Jabrane Slimani, Abdeslam Kadrani, I. El harraki, E. Ezzahid","doi":"10.1109/USSEC53120.2021.9655736","DOIUrl":"https://doi.org/10.1109/USSEC53120.2021.9655736","url":null,"abstract":"Since 2010, Morocco has been pursuing an energy strategy focused mainly on increasing the share of renewable sources in the energy mix, promoting energy efficiency, and boosting regional trade. This energy strategy plans to increase the share of renewable electricity to 42 % of installed capacity in 2020 and more than 52% in 2030. In this study, it is assumed that Morocco will continue this development of the share of renewable energies, setting new targets for 2040 and 2050, respectively, of 62% and 72%. Thus, a bottom-up linear optimization model is proposed to study the demand, production, and installed capacity of electrical energy in 2050 in Morocco. The aim is to identify the optimal trajectory for the development of the installed capacity of wind energy and its share in the electricity mix at this horizon. For this purpose, three Scenarios of wind energy development are considered. For each of these Scenarios, the impact on the electricity mix is assessed in terms of discounted global costs and greenhouse gas emissions. The results show Morocco is able to reduce its greenhouse gas emissions from the electricity sector by more than 85% compared to their current projected levels. It can also be concluded that wind energy is a more mature technology than solar photovoltaic and that natural gas production capacity should be greatly increased.","PeriodicalId":260032,"journal":{"name":"2021 Ural-Siberian Smart Energy Conference (USSEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123311532","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: 2

Fundamentals of Multichannelstructural Analysis of Electrical Signals 电信号多通道结构分析基础

2021 Ural-Siberian Smart Energy Conference (USSEC) Pub Date : 2021-11-13 DOI: 10.1109/USSEC53120.2021.9655762

E. Vorobyev, V. Antonov, N. Ivanov, V. Naumov, A. Soldatov

引用次数: 1