Reconfigurable Control as Actuator Fault-Tolerant Control Design for Power Oscillation Damping

Digvijay V. Nair; MSR Murty

doi:10.1186/s41601-020-0151-3

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Reconfigurable Control as Actuator Fault-Tolerant Control Design for Power Oscillation Damping

Original Research | 更新时间：2026-09-30

- Reconfigurable Control as Actuator Fault-Tolerant Control Design for Power Oscillation Damping
- Reconfigurable control as actuatorfault-tolerant control design for poweroscillation damping
- 现代电力系统保护与控制（英文） 2020年5卷第1期页码：1-12
- 作者机构：
  
  1. Faculty of Science & Technology, IFHE HYDERABAD,Hyderabad,India
  2. Dept. of EEE, CMR College of Engineering & Technology,Hyderabad,India
- 作者简介：
- 基金信息：
- DOI：10.1186/s41601-020-0151-3
  中图分类号：
- 纸质出版：2020-01-01
- 稿件说明：
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Digvijay V. Nair, MSR Murty. Reconfigurable Control as Actuator Fault-Tolerant Control Design for Power Oscillation Damping[J]. 现代电力系统保护与控制（英文）, 2020,5(1):1-12.

Digvijay V. Nair, MSR Murty. Reconfigurable control as actuatorfault-tolerant control design for poweroscillation damping[J]. Protection and Control of Modern Power Systems, 2020, 5(1): 1-12.
Digvijay V. Nair, MSR Murty. Reconfigurable Control as Actuator Fault-Tolerant Control Design for Power Oscillation Damping[J]. 现代电力系统保护与控制（英文）, 2020,5(1):1-12. DOI： 10.1186/s41601-020-0151-3.

Digvijay V. Nair, MSR Murty. Reconfigurable control as actuatorfault-tolerant control design for poweroscillation damping[J]. Protection and Control of Modern Power Systems, 2020, 5(1): 1-12. DOI： 10.1186/s41601-020-0151-3.

摘要

This paper presents design of an self contained actuators unit in wide area damping control of power system in stabilizing system response for both nominal system condition and during actuator faults. First it is presented that use of multiple actuators in wide area control aid in improving damping in power system. A wide area damping controller feeding multiple actuators to satisfy multiple objectives in wide area damping control of power system is designed. Minimization of infinity norm of closed loop transfer function of power system with wide area controller in feedback path & closed loop poles placement techniques are used in controller synthesis. Second a reconfigurable control on the lines of fault hiding principle is added to the controller design to maintain system damping to pre-fault level in case of actuator faults. A reconfiguration component(RC) is activated on occurrence of actuator fault thereby reconfiguring system dynamics and redistributing wide area control signal among remaining active actuators. RC together with remaining active actuators and under same wide area damping controller maintains system damping to pre-fault level thereby preserving system dynamic response. In the reconfigurable control design presented here no new actuators outside the unit of actuators designed for wide area damping control is required. This makes for an self contained actuators unit in wide area damping control of power system both for nominal system condition and for system affected by actuator faults. A two area power system model is considered here for demonstrating effectiveness of designed robust damping controller with multiple outputs feeding multiple actuators in wide area control and illustrating the idea of self contained actuators unit for maintaining system damping in case of actuator faults.

Abstract

This paper presents design of an self contained actuators unit in wide area damping control of power system in stabilizing system response for both nominal system condition and during actuator faults. First it is presented that use of multiple actuators in wide area control aid in improving damping in power system. A wide area damping controller feeding multiple actuators to satisfy multiple objectives in wide area damping control of power system is designed. Minimization of infinity norm of closed loop transfer function of power system with wide area controller in feedback path closed loop poles placement techniques are used in controller synthesis. Second a reconfigurable control on the lines of fault hiding principle is added to the controller design to maintain system damping to pre-fault level in case of actuator faults. A reconfiguration component(RC) is activated on occurrence of actuator fault thereby reconfiguring system dynamics and redistributing wide area control signal among remaining active actuators. RC together with remaining active actuators and under same wide area damping controller maintains system damping to pre-fault level thereby preserving system dynamic response. In the reconfigurable control design presented here no new actuators outside the unit of actuators designed for wide area damping control is required. This makes for an self contained actuators unit in wide area damping control of power system both for nominal system condition and for system affected by actuator faults. A two area power system model is considered here for demonstrating effectiveness of designed robust damping controller with multiple outputs feeding multiple actuators in wide area control and illustrating the idea of self contained actuators unit for maintaining system damping in case of actuator faults.

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