A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection
The operation of power systems has been complicated by the rapid diversification of loads. Analyzing load characteristics becomes necessary to different utilities in energy management systems to ensure the reliability of power systems. Here, we describe a method of analyzing and quantifying the load...
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doaj-d6d6fb2c889a4f38a4b8b474a05061e02020-11-25T01:34:35ZengMDPI AGEnergies1996-10732014-01-017111512910.3390/en7010115en7010115A Load Fluctuation Characteristic Index and Its Application to Pilot Node SelectionHuaichang Ge0Qinglai Guo1Hongbin Sun2Bin Wang3Boming Zhang4Wenchuan Wu5State Key Laboratory of Power Systems, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power Systems, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power Systems, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power Systems, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power Systems, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Power Systems, Tsinghua University, Beijing 100084, ChinaThe operation of power systems has been complicated by the rapid diversification of loads. Analyzing load characteristics becomes necessary to different utilities in energy management systems to ensure the reliability of power systems. Here, we describe a method of analyzing and quantifying the load characteristics and introduce its application to pilot nodes selection for zone based voltage control. We propose a new index, the Q-fluctuation (QF), to quantify the load characteristic of reactive power based on an analysis of historical data. A second index, the V-fluctuation (VF), which is a combination of the QF and the Q–V sensitivity that reflects structural information for the grid describes the voltage deviation at each node. These indices are used to construct the voltage fluctuation space, which is then used to select the pilot node for each zone. Simulation studies using IEEE 14-bus and 118-bus systems are described, and used to demonstrate the advantages of the proposed method. The method was able to improve the secondary voltage control and enhance the grid reliability in response to structural changes.http://www.mdpi.com/1996-1073/7/1/115automatic voltage control (AVC)secondary voltage control (SVC)pilot node selection |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Huaichang Ge Qinglai Guo Hongbin Sun Bin Wang Boming Zhang Wenchuan Wu |
spellingShingle |
Huaichang Ge Qinglai Guo Hongbin Sun Bin Wang Boming Zhang Wenchuan Wu A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection Energies automatic voltage control (AVC) secondary voltage control (SVC) pilot node selection |
author_facet |
Huaichang Ge Qinglai Guo Hongbin Sun Bin Wang Boming Zhang Wenchuan Wu |
author_sort |
Huaichang Ge |
title |
A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection |
title_short |
A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection |
title_full |
A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection |
title_fullStr |
A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection |
title_full_unstemmed |
A Load Fluctuation Characteristic Index and Its Application to Pilot Node Selection |
title_sort |
load fluctuation characteristic index and its application to pilot node selection |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2014-01-01 |
description |
The operation of power systems has been complicated by the rapid diversification of loads. Analyzing load characteristics becomes necessary to different utilities in energy management systems to ensure the reliability of power systems. Here, we describe a method of analyzing and quantifying the load characteristics and introduce its application to pilot nodes selection for zone based voltage control. We propose a new index, the Q-fluctuation (QF), to quantify the load characteristic of reactive power based on an analysis of historical data. A second index, the V-fluctuation (VF), which is a combination of the QF and the Q–V sensitivity that reflects structural information for the grid describes the voltage deviation at each node. These indices are used to construct the voltage fluctuation space, which is then used to select the pilot node for each zone. Simulation studies using IEEE 14-bus and 118-bus systems are described, and used to demonstrate the advantages of the proposed method. The method was able to improve the secondary voltage control and enhance the grid reliability in response to structural changes. |
topic |
automatic voltage control (AVC) secondary voltage control (SVC) pilot node selection |
url |
http://www.mdpi.com/1996-1073/7/1/115 |
work_keys_str_mv |
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