2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)最新文献

Real-time compression of IEC 61869-9 sampled value data IEC 61869-9采样值数据的实时压缩

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-10-24 DOI: 10.1109/AMPS.2016.7602854

S. Blair, A. Roscoe, J. Irvine

{"title":"Real-time compression of IEC 61869-9 sampled value data","authors":"S. Blair, A. Roscoe, J. Irvine","doi":"10.1109/AMPS.2016.7602854","DOIUrl":"https://doi.org/10.1109/AMPS.2016.7602854","url":null,"abstract":"Fast-acting, yet cost-effective, communications is critical for smarter grid monitoring, protection, and control. This paper demonstrates a new approach for the real-time compression of Sampled Value (SV) data based on the IEC 61869-9 recommendations. This approach applies simple compression rules, yet yields excellent compression performance - typically compressing data to less than half of the original size. This leads to a significant and beneficial reduction in encoding time (in the merging unit producing the SV data) and decoding time (at the end application), as well as the main benefit of reduced Ethernet transmission times resulting from the reduced frame size. As well as reducing the absolute bandwidth requirements in typical applications, this has system-wide benefits due to reducing Ethernet queuing delays and the consequent network jitter. The approach has been validated on a real-time platform to accurately measure all contributions to the end-to-end delay. This work will help enable low-latency and bandwidth-sensitive applications involving the SV protocol, such as phasor measurement units and wide-area protection.","PeriodicalId":290041,"journal":{"name":"2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131293056","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

Choice and properties of adaptive and tunable digital boxcar (moving average) filters for power systems and other signal processing applications 电力系统和其他信号处理应用的自适应和可调谐数字箱车(移动平均)滤波器的选择和特性

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-10-24 DOI: 10.1109/AMPS.2016.7602853

A. Roscoe, S. Blair

{"title":"Choice and properties of adaptive and tunable digital boxcar (moving average) filters for power systems and other signal processing applications","authors":"A. Roscoe, S. Blair","doi":"10.1109/AMPS.2016.7602853","DOIUrl":"https://doi.org/10.1109/AMPS.2016.7602853","url":null,"abstract":"The humble boxcar (or moving average) filter has many uses, perhaps the most well-known being the Dirichlet kernel inside a short-time discrete Fourier transform. A particularly useful feature of the boxcar filter is the ease of placement of (and tuning of) regular filter zeros, simply by defining (and varying) the time length of the boxcar window. This is of particular use within power system measurements to eliminate harmonics, inter-harmonics and image components from Fourier, Park and Clarke transforms, and other measurements related to power flow, power quality, protection, and converter control. However, implementation of the filter in real-time requires care, to minimise the execution time, provide the best frequency-domain response, know (exactly) the group delay, and avoid cumulative numerical precision errors over long periods. This paper reviews the basic properties of the boxcar filter, and explores different digital implementations, which have subtle differences in performance and computational intensity. It is shown that generally, an algorithm using trapezoidal integration and interpolation has the most desirable characteristics.","PeriodicalId":290041,"journal":{"name":"2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124688391","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: 20

Data acquisition and processing for power hardware-in-the loop simulations of LV distribution feeders 低压配电馈线电力硬件在环仿真的数据采集与处理

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-28 DOI: 10.1109/AMPS.2016.7602874

Seymour Pijpers, N. Blaauwbroek, P. Nguyen, H. Slootweg

引用次数: 5

Investigating the properties of precision resistors for the application in high voltage DC dividers 研究用于高压直流分压器的精密电阻的性能

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602872

S. Passon, Ilja Gitin, J. Meisner

引用次数: 1

Uncertainty analysis of aggregated smart meter data for state estimation 用于状态估计的汇总智能电表数据的不确定性分析

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602805

F. Ni, P. Nguyen, J. Cobben, H. V. D. Brom, D. Zhao

{"title":"Uncertainty analysis of aggregated smart meter data for state estimation","authors":"F. Ni, P. Nguyen, J. Cobben, H. V. D. Brom, D. Zhao","doi":"10.1109/AMPS.2016.7602805","DOIUrl":"https://doi.org/10.1109/AMPS.2016.7602805","url":null,"abstract":"In distribution networks, the data redundancy is usually assumed to be an inevitable bottleneck of traditional grid control and operation. Recently, the availability of smart meter data in distribution systems has provided an opportunity to improve the observability. As for the medium-voltage (MV) distribution system, there is an increasing interest to use the spatially aggregated smart meter data from low-voltage (LV) feeders in the state estimation, instead of inaccurate pseudo-measurements. However, good performance of state estimators requires good knowledge of the available measurements, in terms of both the mean value and the associated uncertainty. Hence, this paper intends to pave a new way of utilizing and aggregating smart meter data for the purpose of state estimation in the MV distribution system, in a concrete and reliable manner. The feasibility of the proposed method is verified on the IEEE European Low Voltage Test Feeder with a set of real-world smart meter data. Simulation results show that the utilization of aggregated smart meter data is able to improve the accuracy of load modelling of three-phase transformers.","PeriodicalId":290041,"journal":{"name":"2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117032658","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: 17

Phase-based estimation of synchrophasors 同步相量的相位估计

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602867

Pasquale Cuccaro, D. Gallo, C. Landi, M. Luiso, G. Romano

{"title":"Phase-based estimation of synchrophasors","authors":"Pasquale Cuccaro, D. Gallo, C. Landi, M. Luiso, G. Romano","doi":"10.1109/AMPS.2016.7602867","DOIUrl":"https://doi.org/10.1109/AMPS.2016.7602867","url":null,"abstract":"One of primary grid management challenge is to ensure that these changing power system operating conditions stay within safe limits at all times including potential and probable future contingencies. In this field, one of the most promising enabling technologies is synchrophasor measurements, which require the estimation of the parameters of sinusoids, namely amplitude, frequency and phase. In the context of synchrophasor measurements many algorithms have been proposed, which are based on the computation of Discrete Fourier Transform, on the digital phase-locked loop, the Kalman filter, estimation of sinusoid parameters in noisy environment. In this paper we propose a phasor estimation algorithm based on the high signal-to-noise ratio (SNR) assumption. We show that such an assumption reduces the computational complexity of the algorithm in terms of products per observation window. Amplitude can be estimated as sample-mean of the sequence of magnitude of the observed samples, thus requiring just sums, and frequency and phase can be estimated sequentially from the observed phases only. Monte-Carlo simulations show that the proposed algorithm achieves the Cramer-Rao Lower Bounds for amplitude, frequency and phase and estimated total vector error is well below the limits prescribed in standard in both static and dynamic conditions.","PeriodicalId":290041,"journal":{"name":"2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129205592","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: 3

Multifunction phasor analysis for distribution networks 配电网的多功能相量分析

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602868

G. Frigo, G. Giorgi, Matteo Bertocco, C. Narduzzi

引用次数: 8

Experimental characterization of communication infrastructure for virtual power plant monitoring 虚拟电厂监控通信基础设施的实验表征

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602860

S. Rinaldi, M. Pasetti, P. Ferrari, G. Massa, D. D. Giustina

{"title":"Experimental characterization of communication infrastructure for virtual power plant monitoring","authors":"S. Rinaldi, M. Pasetti, P. Ferrari, G. Massa, D. D. Giustina","doi":"10.1109/AMPS.2016.7602860","DOIUrl":"https://doi.org/10.1109/AMPS.2016.7602860","url":null,"abstract":"In modern distribution systems, the wide presence of Distributed Energy Resources (DERs) (e.g. intermittent and non-programmable renewable sources, such as photovoltaic power plants and micro wind turbines), is going to cause increasing problems in the traditional management of the distribution grid. Recently, the use of Distributed Energy Storage Systems (DESSs) has been proposed to limit the impact of renewable power plants on the distribution grid. The presence of a large number of production plants distributed along the grid, which are able to interact between them, requires the Distribution System Operator (DSO) to adopt a proper monitoring system. To allow such an implementation, a communication and a computing architecture able to virtualize several renewable power plants installed in the same area is described in the present work. The proposed architecture can simplify the monitoring from the DSO, using the so-called Virtual Power Plant (VPP) approach. The proposed architecture has been deployed in the area of the Campus of the University of Brescia, Italy, for the monitoring of two photovoltaic (PV) plants and two different Battery Energy Storage Systems (BESSs). The implemented infrastructure makes use of several technologies, such as IEEE 802.11ac and Long Term Evolution (LTE). The characterization of the communication infrastructure highlights the feasibility of the proposed approach (the latency is less than 20 ms in the worst case over IEEE 802.11ac links with a traffic load of 80 Mbit/s). To show the performance of such a solution, the data collected from a system composed by a PV field (64 kWp) and a Li-Ion storage system (25 kWh) has been reported.","PeriodicalId":290041,"journal":{"name":"2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134400131","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: 14

Novel grid impedance measurement setups in electrical power systems 电力系统中新型网格阻抗测量装置

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602808

T. T. Do, M. Jordan, H. Langkowski, D. Schulz

引用次数: 6

Development and testing of optically-interrogated current sensors 光学询问电流传感器的开发和测试

2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) Pub Date : 2016-09-01 DOI: 10.1109/AMPS.2016.7602871

J. Nelson, G. Fusiek, Lloyd Clayburn, P. Niewczas, C. Booth, P. Orr, Neil Gordon

引用次数: 10