2011 International Conference on Advanced Power System Automation and Protection最新文献_第9页

Fuzzy synthetic evaluation of power quality based on Deviation Function and Joint-Entropy 基于偏差函数和联合熵的电能质量模糊综合评价

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180366

Zhengming Li, Jianrong Qin, T. Pan

引用次数: 0

Optimal coordinated control strategy of AGC and AVC based on hierarchical control 基于层次控制的AGC和AVC最优协调控制策略

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180673

Miao Li, Jianbo Sun, Xiaoping Li, Wei Hu, Shuying Wang, Fei Xu

{"title":"Optimal coordinated control strategy of AGC and AVC based on hierarchical control","authors":"Miao Li, Jianbo Sun, Xiaoping Li, Wei Hu, Shuying Wang, Fei Xu","doi":"10.1109/APAP.2011.6180673","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180673","url":null,"abstract":"Negative effects exists between the control commands and control targets of AGC and AVC system, which result in a series of problems such as system security and overshoot. This paper models a coordinated automatic control system of AGC and AVC based on hierarchical control, adopting decomposition-coordination method between active power and reactive power based on time dimension, the design scheme of each control layer is also given. The upper controller optimize active and reactive power coordinately, and then provides the reference setting for comprehensive optimal economic and security. The lower controller improve the control strategy of AGC in advance thus actualized comprehensive energy saving, study of the AGC effects on voltage control is carried out and realize the comprehensive optimal of economic and security by means of suitable voltage control command. Besides, the coordination process checks and corrects the commands in an iterative way, and then get the final comprehensive coordinated commands, which can minimize the negative effects thus maintains the system operating within the multi-objective suboptimal area. Simulations in computer prove the effectiveness of the proposed control system and the strategies","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129467506","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: 5

The online fault diagnosis and visualization of the grid based on multi-dimensional three-state data co-processing 基于多维三态数据协同处理的电网在线故障诊断与可视化

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180624

Xin Shan, Zemei Dai, Jian Zhang, JiangFeng Qian, Mingyi He

引用次数: 0

Issues overcome in the design and application of IEC 61850-compliant substation automation systems 符合IEC 61850标准的变电站自动化系统在设计和应用中所克服的问题

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180408

Shinji Matsuda, Y. Watabe, Ilwan Izani Asrizal, S. Katayama, Koichi Okuno, Ken Kasuga

引用次数: 13

Study of circulating current distributions for HTS windings 高温超导绕组循环电流分布的研究

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180386

Fangyuan Shi, Yusheng Zhou, P. Chen, Xin Hu, Xiao-gang Gao, Yi Yang

引用次数: 1

Development of medium-voltage distribution relay with precision current measurement and multi-lingual capability 具有精密电流测量和多语言功能的中压配电继电器的研制

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180472

Yusuke Yanagihashi, Mio Nakashima, Y. Sumida, L. Hong

引用次数: 2

A novel real-time transient stability prediction method based on post-disturbance voltage trajectories 一种基于扰动后电压轨迹的暂态稳定实时预测方法

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180495

Jin-quan Zhao, Jun Yu Li, Xiaochen Wu, K. Men, Chao Hong, Yongjun Liu

{"title":"A novel real-time transient stability prediction method based on post-disturbance voltage trajectories","authors":"Jin-quan Zhao, Jun Yu Li, Xiaochen Wu, K. Men, Chao Hong, Yongjun Liu","doi":"10.1109/APAP.2011.6180495","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180495","url":null,"abstract":"With the wide application of phasor measurement units (PMU) and wide area measurement system (WAMS) in power system, the real time detection and emergency control of power system transient instability based on the wide-area measurements has brought wide attention. This paper presents a novel technique for predicting transient stability status of a power system following a large disturbance. The synchronously measured samples of the fundamental frequency voltage magnitudes are used to detect the stability. A stability criterion based on the volt-second integration of post-disturbance voltage trajectory is proposed for detecting the transient instability. The drop rate of voltage magnitude after clearing the fault is embedded into the proposed criterion since it indicates the severity of disturbance in some extent. There are two integration termination criteria for fast prediction. Compare with traditional transient stability prediction methods, in which the post-fault rotor angle and angular velocity samples are used to produce the instability criteria, the proposed method improves the reliability and rapidity of transient stability detection especially for the multiple swing instability cases. Studies with both IEEE 39 test system and China Sothern Power Grid indicates that the proposed method is effective.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127190973","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: 8

Research and application of practicable intelligent fault diagnosis system based on multi-source data 实用的基于多源数据的智能故障诊断系统研究与应用

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180747

JiangFeng Qian, Jian Zhang, Xin Shan

引用次数: 1

Research on encoding/decoding method of electric physical information based on LMS-ADPCM algorithm 基于LMS-ADPCM算法的电物理信息编解码方法研究

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180508

Yun Zhao, Xiaoming Li, L. An, Jian Sun, Lihui Wang

{"title":"Research on encoding/decoding method of electric physical information based on LMS-ADPCM algorithm","authors":"Yun Zhao, Xiaoming Li, L. An, Jian Sun, Lihui Wang","doi":"10.1109/APAP.2011.6180508","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180508","url":null,"abstract":"In order to solve the contradiction between the transmission and storage requirements of massive electric physical information in smart grid and relative shortage of communication resources, this paper puts forward an novel encoding method based on Least Mean Square (LMS) adaptive filtering theory and Adaptive Differential Pulse Code Modulation (ADPCM) system in G.726 international standard proposed by CCITT. The LMS-ADPCM coding method, which combines the adaptive characteristic of Adaptive Pulse Code Modulation (APCM) and the differential characteristic of differential Pulse Code Modulation (DPCM), conducts adaptive quantization coding on the differential values of sample signals using adaptive prediction and adaptive quantization techniques that can improve the quantization and encoding characteristics of the coding system. Moreover, this paper analyzes the coding specification and existing deficiencies of the current power communication protocols, mainly including IEC60870-5 and IEC61850. Based on the LMS-ADPCM coding algorithm and ASN.1's basic coding rules (BER), the feasible coding scheme for IEC61850 protocol messages is designed to achieve seamless integration communication among different equipments and systems. Results of numerical experiments show that the proposed LMS-ADPCM coding method provides an efficient way for compression coding of electric physical information in smart grid.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130176421","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: 4

A multi-objective coordinated control method for AGC AGC多目标协调控制方法

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180506

Xiaobai Zhang, Xianliang Teng, Zonghe Gao

引用次数: 1