Energy Analysis of Control Methods in a Dual-Pump Direct-Driven Hydraulic System
<p>Direct-driven hydraulic (DDH) systems reduce the inefficiencies of conventional hydraulics by converting electrical energy into hydraulic power on demand via electric servo-driven pumps. To evaluate and minimize irreversibilities in this dual-pump system, several control methods were analyzed wit...
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| Autores principales: | , |
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2025
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/1237226 |
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| Sumario: | <p>Direct-driven hydraulic (DDH) systems reduce the inefficiencies of conventional hydraulics by converting electrical energy into hydraulic power on demand via electric servo-driven pumps. To evaluate and minimize irreversibilities in this dual-pump system, several control methods were analyzed with respect to energy efficiency. Proportional–integral–derivative control, linear–quadratic regulation with integral action, sliding-mode control, and backstepping control were implemented and tested under controlled laboratory conditions using a fully loaded cylinder to replicate real operating scenarios. Energy efficiency was quantified by computing each component’s power consumption from measured data, yielding overall system efficiency and revealing component-level irreversibilities that pinpoint the key factors affecting performance. A comparative evaluation of the control strategies highlights their relative abilities to lower input power and irreversibilities while preserving stability and performance. Additionally, the trade-off between system dynamics and energy efficiency was explored, showing how control precision affects power usage. Understanding these interactions is essential for optimizing DDH systems in industrial applications.</p> |
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| ISBN: | 978-1-83634-653-1 |
| DOI: | 10.5772/intechopen.1012744 |