Drives and controls

Part 1 of ebook "Advanced electric drive vehicles" presents the following content: automotive industry and electriication; fundamentals of conventional vehicles and powertrains; internal combustion engines; fundamentals of power electronics; fundamentals of electric machines; fundamentals of electric motor control;...

332p damtuyetha 09-01-2023 2 1   Download

Residual stress in the welds that attach Control Rod Drive Mechanism nozzles into the upper head of a PWR reactor vessel can influence the vessel’s structural integrity and initiate Primary Water Stress Corrosion Cracking. PWSCC at Alloy 600 CRDM nozzles has caused primary coolant leakage in operating PWRs. We have used Deep Hole Drilling to characterise residual stresses in a PWR vessel head.

9p vironald 15-12-2022 9 1   Download

In preparative and industrial chromatography, the current viewpoint is that the dynamic binding capacity governs the process economy, and increased dynamic binding capacity and column utilization are achieved at the expense of productivity. The dynamic binding capacity in chromatography increases with residence time until it reaches a plateau, whereas productivity has an optimum.

10p vironald 15-12-2022 6 1   Download

This thesis presents the following contributions. First, it is identified that disturbance estimation based networks utilised for compensation possess the same polynomial architectures as signal conditioning anti-windup and their equivalents. Next, an appropriate strategy is identified to integrate disturbance compensation for finite-controlset optimisation schemes via the constraint set rather than the cost function to maintain a simple and elegant problem structure.

208p runordie3 06-07-2022 5 0   Download

The most common automotive suspension systems have been used passive components with fixed damping coefficient and spring constant. They are two separate functions to reach a compromise between drive quality and handling performance.

10p visusanwojcicki 28-06-2022 8 2   Download

VNSMAPS collects the data from vehicles in the Vietnamese traffic. The collected data is analyzed to provide information about the driver, the payload of the vehicle and the status of the vehicle parts. This information on one help which can help the traffic administration to control the drivers’ driving behavior and the security of the vehicles.

8p visherylsandberg 18-05-2022 20 1   Download

The paper presents research on the calculation method of designing optimal current control problem sets to improve the quality of inverter systems used in industrial machine control with loads of, three phase AC asynchronous motors. System kinetics to evaluate control methods. The main goal of adopting the optimal control method of the energy flow to the converter and the three phase inverter is to regulate the output current.

6p andromedashun 16-05-2022 22 1   Download

Driving pressure (ΔP=Plateau pressure-PEEP) is highly correlated with postoperative pulmonary complications (PPCs) and appears to be a promising indicator for optimizing ventilator settings. We hypothesized that dynamic, individualized positive end-expiratory pressure (PEEP) guided by ΔP could reduce postoperative atelectasis and improve intraoperative oxygenation, respiratory mechanics, and reduce the incidence of PPCs on elderly patients undergoing laparoscopic surgery.

12p viisaacnewton 26-04-2022 16 1   Download

Strongylid nematode infections may negatively affect both animal health and welfare, with deleterious consequences for livestock productivity. Many farmers in recent decades have relied on anthelmintics as the sole strategy of control, but the intensive use of these chemotherapeutics has led to the development of anthelmintic resistance (AR).

11p vidarwin 23-02-2022 7 1   Download

In cancer, mutually exclusive or co-occurring somatic alterations across genes can suggest functional interactions. Existing tests for such patterns make the unrealistic assumption of identical gene alteration probabilities across tumors. We present Discrete Independence Statistic Controlling for Observations with Varying Event Rates (DISCOVER), a novel test that is more sensitive than other methods and controls its false positive rate.

17p vialfrednobel 29-01-2022 5 0   Download

This study considered each stage as an individual unit consisting of a programmable logic controller (S7300 PLC) and a closed-loop controlled vector drive (G120). Software simulations performed in the TIA Portal for PLC- Drive communication and WINCC RT professional Software to implement SCADA screens by considering Virtual Inputs from the controller.

8p thebadguys 15-01-2022 8 0   Download

Hemispheric asymmetry in neuronal processes is a fundamental feature of the human brain and drives symptom lateralization in Parkinson’s disease (PD), but its molecular determinants are unknown. Here, we identify divergent epigenetic patterns involved in hemispheric asymmetry by profiling DNA methylation in isolated prefrontal cortex neurons from control and PD brain hemispheres.

23p viarchimedes 26-01-2022 6 0   Download

In this paper, Hybrid Fuzzy-PID controllers for current and speed control loops were suggested. Simulations with MATLAB Simulink for the electric shovel hoisting controllers were implemented and compared with conventional PID controller. Simulation results show that control quality of the hoisting drive is improved with the Hybrid Fuzzy-PID controllers.

8p vishivnadar 17-01-2022 6 0   Download

Nowadays, flowmeters are widely used in variety industrial fileds such as LPG, paint, oil refining, thermal power, etc. The reading value is used for controlling or adjusting the system. It is necessary to maintain the accuracy of those devices. Generally, those devices are calibrated periodically. Calibration is a comparision between the reading value of a device under test and that of the standard or reading value of a master device. The master devices must be already calibrated.

9p vishivnadar 17-01-2022 13 0   Download

The purpose of this paper is to investigate the effects of cross-country characteristics on acquirers’ target status choice in cross-border mergers and acquisitions across 41 emerging markets. The paper first reviews the existing literature and develops the related hypotheses, in conjunction with the objectives of this paper. We then describe the data employed, variable measurement and examine the effects of cross-country characteristics on the acquirers’ target status choice in cross-border mergers and acquisitions while controlling for firm-level and deal-specific characteristics.

16p inception36 30-11-2021 12 0   Download

This paper presents a design, calculation, simulation and fabrication of micro gripper driven by the electrothermal V-shaped actuator. The working principle of the V-shaped actuator bases on the thermal expansion of a thin beam when applying a voltage. The advantages of this design are large displacement amplification factor, large driving force, low voltage, simple configuration and control. The maximum displacement of each jaw can be up to 40µm at the calculated voltage of 17.35V and low operating frequency

8p spiritedaway36 28-11-2021 3 0   Download

In this paper, the system with the Schneider-ATV310, a Siemens-PLC S7-1200 connected via Modbus RTU to controlled and supervised an 1HP 3 phases motor. The next part was referred to theoretical of Modbus RTU protocol and specify of ATV310 Modbus function. After that, the paper would be presented technique to setup the communication between PLC S7-1200 and ATV310 Drive via Modbus to control, supervise parameters shown on the SCADA monitor. The conclusion and future work will be present in the last part of this paper.

10p cothumenhmong11 05-05-2021 33 2   Download

The first magnetically controlled growing rod (MCGR) was implanted in 2009. Since then multiple complications have been identified that have helped drive the development of the MCGR and its surgery.

9p vianttinic2711 20-04-2021 6 1   Download

Previous heart rate variability (HRV) studies in asthmatic subjects (AS) demonstrate predominance of parasympathetic drive concomitant with low HRV, which is against the general belief that enhanced parasympathetic modulation improves HRV.

7p vimontana2711 05-04-2021 4 0   Download

Escalated food demands propelled by the ever increasing population demands for increase in crop production. But problems like labour shortages, high input costs and conventional farming practices makes agriculture economically unviable and resulted in its decline, especially in vulnerable communities of the developing world. Use of heavy machinery has been in the increase to tackle the problems of labour shortages but have adverse effects on environment due to soil compaction and the adverse effect on global warming owing to high fossil fuel use.

7p chauchaungayxua11 23-03-2021 11 0   Download