2015年9月16日 · The suggested intelligent controller updates coefficients of the proportional-derivative-second derivative controller (PDD 2) using particle swarm optimization (PSO). The memory-based and the triggered-memory-based PSO algorithms are studied to improve the performance of PSO-PDD 2 algorithm for various sea conditions using simulations.

PDD2(proportional + derivative + second derivative) compensator has been standardly used for position control of the pneumatic stage. This compensator is based on the integral characteristics of a pneumatic system composed of pipes, servo valves, and pneumatic cylinders.

This pytorch implementation complements the paper "Highly accurate and memory efficientunsupervised learning-based discrete CTregistration using 2.5D displacement search" by MP Heinrich and L Hansen, which was accepted at MICCAI 2020. Feel free to ask questions, by raising issues. Please cite our work if you make use of the public implementation.

In this paper, an optimal controller is designed to control the undesired roll motion of a ship under the effect of sea waves by using active fin stabilizers. The roll dynamics is described by a...

To drive the pneumatic stage at high-speed, this paper proposes to modify the structure of PDD 2 (proportional+ derivative + second derivative) compensator. PDD 2 compensator has been widely used thanks to high versatility and control performance.

本稿では，まず榊らによって提案されたPDD2制御による位置決め応答について述べる。 次に，サーボ弁を含めた空圧系を不完全積分器とみなしたときのPDD2制御による位置決めの応答を示す。 最後に，位置決めの応答の高速化を図るために，完全2自由度化制御系の実装を試みた。 パラメータα，β，γ，ηの調節により位置決めの高速化ができることを示す。 最後に，実験結果 …

2015年1月1日 · The suggested intelligent controller updates coefficients of the proportional-derivative-second derivative controller (PDD2) using particle swarm optimization (PSO). The memory-based and the...

2019年8月1日 · To achieve high-speed positioning, improvement of performance and consideration of implementation are carried out for PDD2 compensator and the effectiveness of proposed method is verified experimentally.

Simulation results indicate the good performance of the adaptive PDD2 controller in wind turbine for supporting grid frequency. According to the simulations, the proposed control method will improve the FN (frequency nadir) by minimum 18% compared to the traditional network frequency control methods.

2019年8月1日 · In this paper, a unidirectional positioning stage which is supported by four coil-type spring isolators and actuated by four pneumatic cylinders is considered. The stage jerk feedback scheme (SJFB)...