Servodrivning energilagring

Med energilagring kan du lagre energien når den er tilgjengelig, og frigjøre den ved behov. Med større driftssikkerhet og uavhengighet unngår du potensielle fall i nettforsyningen. …

How to reduce energy consumption of servo drive with Im?

Reduction in the energy consumption of servo drive with IM is based on prescription of the ideal position trajectory. Development of energy saving control strategy assumes the load torque consisting of constant, linear and quadratic components as well as friction consisting of Coulomb, viscous and quadratic component (measured off-line).

What are servo constraint equations?

The servo constraint equations are derived in both velocity and acceleration. The vehicle trajectory is optimized to save energy consumption. Trajectory planning is a crucial aspect of autonomous driving for energy conservation ans savings, especially in electric vehicles (EVs).

How can a servo be used for inverse dynamics simulation?

In addition, velocity- and acceleration-level servo constraints were designed and implemented for inverse dynamics simulation. A cost function for evaluating the energy consumption of an EV was developed, along with a trajectory planning method.

What are servo constraints?

When a vehicle performs tasks that can be described in terms of the vehicle’s position and velocity, these vehicle state requirements are defined as constraints for the entire vehicle system. They are known as servo constraints (also referred to as active constraints, procedural constraints, or type II constraints).

What is the time derivative of servo constraint equations?

The time derivative of servo constraint equations can be expressed as: (58) ψ = H z + ψ z z + ψ t = 0 where H = ∂ ψ / ∂ z. A series of comprehensive servo constraint equations in terms of velocity and acceleration is derived as: (59) ψ − Θ ψ = H z + ψ z z + ψ t − Θ ψ = 0 where Θ is a given square matrix with strictly negative real eigenvalues.