2008 International School on Nonsinusoidal Currents and Compensation最新文献_第4页

A Hilbert transform based algorithm for detection of a complex envelope of a power grid signals - an implementation 基于希尔伯特变换的电网信号复杂包络检测算法-实现

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627508

A. Wetula

引用次数: 6

The geometric algebra as a power theory analysis tool 将几何代数作为幂理论的分析工具

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627490

M. Castilla, J. Bravo, M. Ordóñez, J. Montaño, A. López, D. Borrás, J. Gutierrez

{"title":"The geometric algebra as a power theory analysis tool","authors":"M. Castilla, J. Bravo, M. Ordóñez, J. Montaño, A. López, D. Borrás, J. Gutierrez","doi":"10.1109/ISNCC.2008.4627490","DOIUrl":"https://doi.org/10.1109/ISNCC.2008.4627490","url":null,"abstract":"In this paper, a multivectorial decomposition of power equation in single-phase circuits for periodic n-sinusoidal /linear and nonlinear conditions is presented. It is based on a frequency-domain Clifford vector space approach. By using a new generalized complex geometric algebra (GCGA), we define the voltage and current complex-vector and apparent power multivector concepts. First, the apparent power multivector is defined as geometric product of vector-phasors (complex-vectors). This new expression result in a novel representation and generalization of the apparent power similar to complex-power in single-frequency sinusoidal conditions. Second, in order to obtain a multivectorial representation of any proposed power equation, the current vector-phasor is decomposed into orthogonal components. The power multivector concept, consisting of complex-scalar and complex-bivector parts with magnitude, direction and sense, obeys the apparent power conservation law and it handles different practical electric problems where direction and sense are necessary. The results of numerical examples are presented to illustrate the proposed approach to power theory analysis.","PeriodicalId":143815,"journal":{"name":"2008 International School on Nonsinusoidal Currents and Compensation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125624472","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: 11

Analysis of instantaneous NSV&C in polyphase systems 多相系统瞬时非稳态故障控制分析

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627514

J. Montaño, M. Castilla, A. López, J. Bravo, D. Borrás, J. Gutierrez

引用次数: 1

Complete harmonic-domain modeling and performance evaluation of an optimal-PWM-modulated STATCOM in a realistic distribution network 配电网中最优pwm调制STATCOM的全谐波域建模及性能评价

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627498

H. V. Haghi, M. Bina

{"title":"Complete harmonic-domain modeling and performance evaluation of an optimal-PWM-modulated STATCOM in a realistic distribution network","authors":"H. V. Haghi, M. Bina","doi":"10.1109/ISNCC.2008.4627498","DOIUrl":"https://doi.org/10.1109/ISNCC.2008.4627498","url":null,"abstract":"Power systems use STATCOM for compensating purposes that is subjected to the high switching frequencies. Various PWM techniques make selective harmonic elimination possible, which effectively control the harmonic content of voltage source inverters. On the other hand, distribution systems have to supply unbalanced nonlinear loads, transferring oscillations to the DC-side of the converter in a realistic operating condition. Thus, additional uncharacteristic harmonics are modulated through the STATCOM at the point of common coupling (PCC). This requires more attention when switching angles are calculated offline using the optimal-PWM technique. This paper suggests a harmonic-domain model in order to realistically evaluate the injected harmonics at the PCC. This model properly takes into account the DC capacitor effect, effects of other possible varying parameters such as voltage unbalance as well as network harmonics, and effects of operating conditions on the STATCOM harmonic performance. The model is programmed, and can be easily run with other algorithms such as Monte Carlo simulation. Further, a semi-stochastic method is proposed to predict and simulate the three-phase voltage unbalance, leading to an analytical tool for prediction of harmonic performance of STATCOM. The predictive method is developed based on the measured data obtained from a low-voltage distribution network. Finally, the modeled STATCOM is linked with the distribution substation, applying the proposed voltage unbalance modeling to evaluate aggregate harmonics of the load.","PeriodicalId":143815,"journal":{"name":"2008 International School on Nonsinusoidal Currents and Compensation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126078203","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: 10

The correlation functions of power as a new proposition to describe power states in circuits with periodical voltage and current waveforms 功率相关函数是描述具有周期性电压和电流波形的电路中功率状态的一个新命题

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627487

M. Hartman, M. Hashad

引用次数: 2

Performance and accuracy comparison of fixed and floating-point realizations of the Active Power Filter control algorithm 有源电力滤波器控制算法的固定和浮点实现的性能和精度比较

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627502

M. Pasko, M. Maciążek, D. Buła

{"title":"Performance and accuracy comparison of fixed and floating-point realizations of the Active Power Filter control algorithm","authors":"M. Pasko, M. Maciążek, D. Buła","doi":"10.1109/ISNCC.2008.4627502","DOIUrl":"https://doi.org/10.1109/ISNCC.2008.4627502","url":null,"abstract":"The comparison of performance and accuracy of the active power filter control algorithm realizations has been presented in the paper. The worked out algorithms are based on dq synchronous frame control strategy. The following Texas Instruments digital signal controllers were used for the realization: fixed-point TMS320F2812 and floating-point TMS320F28335. The TMS320F28335 digital signal controller is the first floating-point controller in the C2000 family. It combines flexible control-specific interfaces and ease of use of an industrial microcontroller(MCU) with the processing power of DSP technology (up to 300 MFLOPS). Using of the floating-point digital signal processor allows improving accuracy of the computation, particularly in digital filtering (IIR low-pass filter) which has a direct influence on the quality of the generated current waveforms. The worked out algorithms have been practically verified on APF prototype which was built in the Institute of Industrial Electrical Engineering and Computer Science. The presented problems have been illustrated by laboratory results.","PeriodicalId":143815,"journal":{"name":"2008 International School on Nonsinusoidal Currents and Compensation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125741124","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: 12

Improved shunt active power filters 改进的并联有源电源滤波器

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627513

K. Sozański

引用次数: 12

Power delivery system nonsinusoidal regime analysis 电力输送系统非正弦状态分析

2008 International School on Nonsinusoidal Currents and Compensation Pub Date : 2008-06-10 DOI: 10.1109/ISNCC.2008.4627492

M. Dumitrescu, T. Munteanu, G. Gurguiatu, C. Vlad, D. Floricau

引用次数: 0