Reduction of wind turbine power fluctuation by using priority flow divider valve in a hydraulic power transmission

Mahato, Anil C.; Ghoshal, Sanjoy K.; Samantaray, Arun Kumar

doi:10.1016/j.mechmachtheory.2018.05.019

Cited by 27 publications

(21 citation statements)

References 30 publications

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“…If the system suffers from unknown disturbances, the control object is uncertain. This indeterminate object is expressed as: 𝑥 ( ) = 𝑓 𝑥, 𝑥 ,⋅⋅⋅, 𝑥 ( ) , 𝑡 + 𝑤(𝑡) + 𝑏𝑢, 𝑦 = 𝑥(𝑡), (27) where, 𝑓(𝑥, 𝑥 ,⋅⋅⋅, 𝑥 ( ) , 𝑡) is system unknown function, 𝑤(𝑡) is the unknown perturbation, 𝑏 is a control gain, 𝑢is the system input, 𝑦 is the system output.…”

Section: Simulation Analysis Of Sad Controlmentioning

confidence: 99%

“…It is pointed out that the integrator series structure of hydraulic servo control system can correspond to linear or nonlinear system under the condition of feedback. By considering the system function as state feedback, a scalable state controller is proposed, which can use servo feedback control the hydraulic system [26,27]. To be more specific, a LOSP simulation model of STF control algorithm adjusted by pre-designed EHS system is introduced to simultaneously deal with parameter uncertainties and time-varying disturbances demonstrate in hydraulic system.…”

Section: Introductionmentioning

confidence: 99%

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Optimal analysis of VSL following-up performance considering hydraulic system SAD control strategy

Zhang¹,

Ruan²,

Jiang³

et al. 2022

J. vibroeng.

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Hydraulic system lubricating oil is subject to serialized Variable Static Loads (VSL) following-up performance. An improved Self-Turbulent Flow (STF) algorithm, based on the real-time acquisition and monitoring of Lubricating Oil Static Pressure (LOSP) in hydraulic system to simulate VSL, is proposed. In this topic, a mathematical model of the Electro-Hydraulic Servo (EHS) control system for LOSP acquisition is presented, and the STF controller is designed for numerical analysis. The Self-Anti-Disturbance (SAD) control strategy for LOSP of EHS system is discussed, which is used for quadratic optimization, pole placement, PID and STF control, and the LOSP simulation model of STF control is constructed by SIMULINK module. Numerical simulation results indicate that the overshoot is significantly reduced. The proposed SAD control algorithm is verified by experiments, and the LOSP acquisition followability and monitoring accuracy are greatly improved. Toward this goal, a variable hydraulic LOSP acquisition and monitoring can be effectively and stability adjusted by pre-designed EHS control system in the field of power hydraulic fluid lubrication.

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Section: Simulation Analysis Of Sad Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal analysis of VSL following-up performance considering hydraulic system SAD control strategy

Zhang¹,

Ruan²,

Jiang³

et al. 2022

J. vibroeng.

View full text Add to dashboard Cite

show abstract

“…It was shown that the integrator series structure of a hydraulic servo control system could correspond to a linear or nonlinear system under the condition of feedback. By considering the system function as state feedback, a scalable state controller was proposed, which used servo feedback to control the hydraulic system [26,27]. To be more specific, a LOSP simulation model of STF control algorithm adjusted by a predesigned EHS system was introduced to simultaneously to deal with the parameter uncertainties and time-varying disturbances demonstrated in hydraulic system.…”

Section: Introductionmentioning

confidence: 99%

Self-Anti-Disturbance Control of a Hydraulic System Subjected to Variable Static Loads

et al. 2022

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A hydraulic system’s lubricating oil is subject to serialized variable static loads with performance. An improved self-turbulent flow algorithm, based on the real-time acquisition and monitoring of lubricating oil static pressure in a hydraulic system to simulate variable static loads, is proposed. A mathematical model of the electrohydraulic servo control system for lubricating oil static pressure acquisition is presented, and the self-turbulent flow controller is designed for numerical analysis. The self-anti-disturbance control strategy for the lubricating oil static pressure of an electrohydraulic servo system is discussed, which is used for quadratic optimization, pole placement, PID, and self-turbulent flow control, and the lubricating oil static pressure simulation model of self-turbulent flow control is constructed by a SIMULINK module. The numerical simulation results indicate that the overshoot is significantly reduced. The proposed self-anti-disturbance control algorithm is verified by experiments, and the lubricating oil static pressure acquisition followability and monitoring accuracy are greatly improved. Variable hydraulic lubricating oil static pressure acquisition and monitoring can be effectively and stably adjusted by a predesigned electrohydraulic servo control system in the field of power hydraulic fluid lubrication.

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“…Besides, few literatures are found regarding the use of the PFDV in wind power applications. In [15], PFDV has been used in wind turbine power transmission system for reducing the speed fluctuation of the pelton wheel. However, a similar type of proportional flow control valve has been used by Fan et al in [16].…”

Section: Introductionmentioning

confidence: 99%

Application Based Performance Analysis of a Priority Flow Divider Valve Using Power Hydraulic Systems

Kumar¹,

Mahato

2021

Preprint

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Priority flow divider valve (PFDV) splits the flow in two different paths: Primary flow path and Secondary flow path. It can be used in twice applications: a system needs to perform dual functions against dual loads simultaneously and to obtain a stable flow by supplying a compensated flow from secondary flow line to the primary flow line using an energy storage device and a control valve. Two different hydraulic systems are identified to analyze the steady and dynamic performance of the PFDV. The first hydraulic system with PFDV is designed for automobile steering system with a load sensing control strategy in the presence of multiple actuators whereas second system is designed for wind turbine hydraulic power transmission to obtain stable power from it in the absence of generator. Both power hydraulic systems are modeled using bond graph technique and simulated in SYMBOLS SHAKTI software to analyze the PFDV performance.

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Reduction of wind turbine power fluctuation by using priority flow divider valve in a hydraulic power transmission

Cited by 27 publications

References 30 publications

Optimal analysis of VSL following-up performance considering hydraulic system SAD control strategy

Optimal analysis of VSL following-up performance considering hydraulic system SAD control strategy

Self-Anti-Disturbance Control of a Hydraulic System Subjected to Variable Static Loads

Application Based Performance Analysis of a Priority Flow Divider Valve Using Power Hydraulic Systems

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