H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay
This paper proposes a delay discretization based H∞ load frequency control strategy for interconnected power systems. The effect of time delay is considered in the system for the design of stabilizing controller. To improve the tolerable delay margin of the system, a two-term state feedba...
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2021
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oai:doaj.org-article:565b7c30567d47ebb007d9ec68af79572021-11-27T00:01:31ZH∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay2196-542010.35833/MPCE.2019.000206https://doaj.org/article/565b7c30567d47ebb007d9ec68af79572021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9162172/https://doaj.org/toc/2196-5420This paper proposes a delay discretization based H∞ load frequency control strategy for interconnected power systems. The effect of time delay is considered in the system for the design of stabilizing controller. To improve the tolerable delay margin of the system, a two-term state feedback controller structure is used. The controller requires delayed state information as control input. In the proposed approach, the amount of delay introduced in the state of the system, i.e., artificial delay, for taking control action is assumed to be constant. The approach is based on the discretization of this delay interval. In order to define a simple Lyapunov-Krasovskii (LK) function for each of the discretized interval, a stabilization criterion is developed in such a way that a single one satisfies the requirement of all the intervals. The developed criterion is computationally simple and efficient.Subrat Kumar PradhanDushmanta Kumar DasIEEEarticleInterconnected power systemload frequency control (LFC)state feedback controllertime delayProduction of electric energy or power. Powerplants. Central stationsTK1001-1841Renewable energy sourcesTJ807-830ENJournal of Modern Power Systems and Clean Energy, Vol 9, Iss 6, Pp 1468-1477 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
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Interconnected power system load frequency control (LFC) state feedback controller time delay Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 |
| spellingShingle |
Interconnected power system load frequency control (LFC) state feedback controller time delay Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 Subrat Kumar Pradhan Dushmanta Kumar Das H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay |
| description |
This paper proposes a delay discretization based H∞ load frequency control strategy for interconnected power systems. The effect of time delay is considered in the system for the design of stabilizing controller. To improve the tolerable delay margin of the system, a two-term state feedback controller structure is used. The controller requires delayed state information as control input. In the proposed approach, the amount of delay introduced in the state of the system, i.e., artificial delay, for taking control action is assumed to be constant. The approach is based on the discretization of this delay interval. In order to define a simple Lyapunov-Krasovskii (LK) function for each of the discretized interval, a stabilization criterion is developed in such a way that a single one satisfies the requirement of all the intervals. The developed criterion is computationally simple and efficient. |
| format |
article |
| author |
Subrat Kumar Pradhan Dushmanta Kumar Das |
| author_facet |
Subrat Kumar Pradhan Dushmanta Kumar Das |
| author_sort |
Subrat Kumar Pradhan |
| title |
H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay |
| title_short |
H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay |
| title_full |
H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay |
| title_fullStr |
H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay |
| title_full_unstemmed |
H∞ Load Frequency Control Design Based on Delay Discretization Approach for Interconnected Power Systems with Time Delay |
| title_sort |
h∞ load frequency control design based on delay discretization approach for interconnected power systems with time delay |
| publisher |
IEEE |
| publishDate |
2021 |
| url |
https://doaj.org/article/565b7c30567d47ebb007d9ec68af7957 |
| work_keys_str_mv |
AT subratkumarpradhan hx221eloadfrequencycontroldesignbasedondelaydiscretizationapproachforinterconnectedpowersystemswithtimedelay AT dushmantakumardas hx221eloadfrequencycontroldesignbasedondelaydiscretizationapproachforinterconnectedpowersystemswithtimedelay |
| _version_ |
1718409231602810880 |