2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)最新文献_第4页

A Stochastic Nonlinear Excitation Controller for Transient Stabilization in a Power System 电力系统暂态稳定的随机非线性励磁控制器

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982375

Yan Xu, F. Wen, I. Palu, Zeng Yang, Minghui Chen, Hongwei Zhao, Huiyu Shang

{"title":"A Stochastic Nonlinear Excitation Controller for Transient Stabilization in a Power System","authors":"Yan Xu, F. Wen, I. Palu, Zeng Yang, Minghui Chen, Hongwei Zhao, Huiyu Shang","doi":"10.1109/RTUCON48111.2019.8982375","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982375","url":null,"abstract":"Stochastic disturbances caused by renewable energy systems (e.g., wind power and solar power) may deteriorate the transient stability problems in a power system. This paper proposes a stochastic nonlinear excitation controller for transient stability enhancement in a multimachine power system. The third-order model of generators is adopted. A new probabilistic stability criterion is presented where the magnitude of a stochastic disturbance is included explicitly. Then the whole power system is represented by a nonlinear stochastic differential equation set. The proposed excitation controller is implemented by leveraging the feature of a stochastic port-Hamiltonian system. Compared with the controller design methods based on the deterministic power system model, the proposed method can improve the system stability even in the presence of continuous stochastic disturbances on power injections. Besides, it is convenient to select the Hamiltonian function as the stochastic Lyapunov function in the proposed approach. Finally, the effectiveness of the proposed method is demonstrated by a two-area test system with a three-phase fault.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":" 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113948871","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

A Novel High Bandwidth Bipolar Corrector Power Supply in Taiwan Photon Source 台湾光子源之新型高频宽双极校正电源

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982295

Y. Wong, Jhao-Cyuan Huang, K. Liu, C. Liu, Bao-sheng Wang

{"title":"A Novel High Bandwidth Bipolar Corrector Power Supply in Taiwan Photon Source","authors":"Y. Wong, Jhao-Cyuan Huang, K. Liu, C. Liu, Bao-sheng Wang","doi":"10.1109/RTUCON48111.2019.8982295","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982295","url":null,"abstract":"The first light of Taiwan's photon source was produced on December 2013. TPS has been in operation for 6 years and mean time between fail (MTBF) has reached world class standards. The NSRRC upgrade of a storage ring and booster ring requires fast bipolar power supplies for the fast correction magnets. For the fast correction magnets are requirement of the correction power supplies must had a high bandwidth of 10kHz for the output current. A prototype DC/DC corrector power supply using a MOSFET full bridge circuit with a 200kHz PWM control signal and achieved up of 10kHz bandwidth with less than 3-dB attenuation for a small refer signal of the maximum operation current of 10 amperes. Finally, the prototype achieved an 11 kHz bandwidth with less than 3 dB attenuation for a refer signal 0.1V (equal to 0.lA). This paper also presents the designs of the power circuit, control circuit, MOSFET driver circuit, auxiliary & regulator power circuit, protection circuit, and component layout. The experimental results, the effectiveness of the control loop design can be verified from the gain margin and phase margin.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123947140","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

Sensor Matrix for Evaluation of Clothing Fit 服装合身度评价的传感器矩阵

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982355

L. Siliņa, I. Dāboliņa, E. Lapkovska, Janis Dabolins, P. Apse-Apsitis, Jolanta Graudone

引用次数: 7

Review of Burn-In for Production of Reliable Power Electronic Applications 用于生产可靠电力电子产品的老化技术综述

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982357

O. Bormanis, L. Ribickis

引用次数: 0

Power Losses Analysis in Thermal Design of a Synchronous Reluctance Motor 同步磁阻电机热设计中的功率损耗分析

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982256

P. S. Ghahfarokhi, A. Kallaste, T. Vaimann, A. Belahcen

引用次数: 1

Simulation of the Sensorless Switched Reluctance Motor Drives 无传感器开关磁阻电机驱动的仿真

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982325

A. Krasovsky, S. Vasyukov, Elena Vostorgina

引用次数: 2

Implementation of Quasi-Static Time Series Simulations for Analysis of the Impact of Electric Vehicles on the Grid 电动汽车对电网影响分析的准静态时间序列仿真实现

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982359

C. Allenspach, Reto Högger, A. Obushevs, P. Korba, Helen Reist

引用次数: 1

Analysis of battery-based virtual inertia & primary frequency response on improving frequency dynamics in an island hydro-diesel-PV ac-grid 基于电池的虚拟惯性分析及改善孤岛型水电-柴油-光伏交流电网频率动态的一次频率响应

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982338

P.A. Tedjoe, C. Ally, E. D. de Jong

{"title":"Analysis of battery-based virtual inertia & primary frequency response on improving frequency dynamics in an island hydro-diesel-PV ac-grid","authors":"P.A. Tedjoe, C. Ally, E. D. de Jong","doi":"10.1109/RTUCON48111.2019.8982338","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982338","url":null,"abstract":"The displacement of conventional generation in an island power system by inertia-less generation such as PV, reduces the adequacy of the frequency response countermeasures provided by the remaining generation units. A chemical battery energy storage system (BESS) providing compensation techniques such as virtual inertia response (VIR) and droop-based primary frequency response (PFR) can supply the corrective power needed to remedy the increased frequency volatility. This study explores the frequency volatility in a 300 MW hydro-diesel ac-island grid for increasing levels of PV up to a target of 100 MW, and the corrective impact of BESS-based VIR and PFR. The analysis conducted in MATLAB-Simulink® showed that the combined governor response of both hydro and diesel units where fast enough to compensate the aggregated PV plant ramps, and therefore no BESS support would be required for such power imbalances. Analysis of the frequency volatility to the event of losing a large hydro unit, showed that the rate of change of frequency (ROCOF) would change approximately 0.043 Hz/s for every unit change in the systems rotational inertia, increasing from 0.48 Hz/s and exceeding a target ROCOF of 1 Hz/s. The final ROCOF was 1.24 Hz/s at the 100 MW PV level. In this case, 6.52 MW BESS-based VIR and PFR power was needed to correct the frequency response to a desired target ROCOF of 1 Hz/s and nadir of above the under-frequency load shed (UFLS) limit of 58.6 Hz. In comparison, running 21 MW additional diesel units reduced the ROCOF to under 1 Hz/s, but could not maintain the nadir above the UFLS.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127095451","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

Indicator-based modified genetic approach for power network reconfiguration 基于指标的电网重构改进遗传方法

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982340

S. Eroshenko, A. Khalyasmaa, M. Senyuk, D. Snegirev

引用次数: 0

Demonstration of the use of robotics in the development of a scrap processing model for mechatronic education 示范在机电一体化教育的废料处理模型的发展中使用机器人

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982323

I. Bula, E. Hajrizi, N. Kunicina

{"title":"Demonstration of the use of robotics in the development of a scrap processing model for mechatronic education","authors":"I. Bula, E. Hajrizi, N. Kunicina","doi":"10.1109/RTUCON48111.2019.8982323","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982323","url":null,"abstract":"The role of demonstration of functional principles to students in education is very important, especially for engineering specialities. The usage of already known situations for students, as example environmental problems is a word vide challenge, and it could be used for education purposes. The technology development process has another side, as example a few year-old electronic product lives became suddenly short. This brings to an explosion and rapid acceleration in producing e-waste and solid waste. Waste and problems that they bring such as environmental and ecological problems are currently very well recognised among young generation, and they are familiar with that challenge from school. The education and awareness among people about the consequences of their actions is a basis for the arising creativeness, and to motivate students to involve themselves for the equipment designer's position. The career development path in the area of equipment design is basis for the entrepreneurship skills development, and it a good beginning for the motivation of students. The utilisation of e-waste is a good solution to brake psychological barrier, that students can do something wrong, as the creativeness well be based on low cost solutions. Education of new generations in order to change their behaviour regarding mechatronic scrap, is presented as a new approach of treating a mechatronic scrap. This is realized by building with students a few examples of autonomous mobile robots. This process of recycling was used to combine theoretical part with a practical one, in order to design and built robot from scrap. The Building Robots from scrap is in same time a starting point on how we can reuse mechatronic scrap, and how we can start from individual level to contribute in reduction of scrap.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115039933","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