In the day-ahead optimization of large-scale new energy power plants connected to a power grid, the scheduling decision are challenging due to the uncertainty of power outputs caused by weather. To address this uncert...
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The sterilization method (SM) is a promising strategy for preventing the escalation of dengue fever, zika and malaria through controlling mosquitoes. A fractional-order SM non-smooth Filippov system with threshold pol...
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This paper introduces a simple yet powerful plan to bring uninterrupted electricity to local communities by offering an optimized IoT-based off-grid microgrid system. The project integrates diverse renewable sources-s...
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The traditional power equipment material quality control business relies on the work experience of field operators, it fails to form standardized digital information records, and has poor traceability. In order to imp...
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ISBN:
(纸本)9781665486682
The traditional power equipment material quality control business relies on the work experience of field operators, it fails to form standardized digital information records, and has poor traceability. In order to improve the above problems, this paper designed a digital power material quality control information system based on augmented reality technology, and developed an augmented reality wearable intelligent terminal device based on 5G communication and artificial intelligence technology. This has formed an innovative operation mode of audio and video recording of important work information at business key points and remote interactive support of experts;The professional orientation functions such as spatial ranging, vernier caliper reading recognition and partial discharge characteristic spectrum recognition are realized. Relying on the developed system and device, the digital upgrade, cost reduction and efficiency increase of power equipment manufacturing supervision, inspection and detection business are realized.
The weak grid has gradually become the conventional working environment for the existing distributed energy sources, and the instability caused by the interaction between the grid and the inverter has drawn much atten...
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This paper presents a six degree of freedom (DoF) active sample-tracking robotic 3D measurement system for in-line applications. The integrated measurement platform (MP) of the state-of-the-art system is augmented by ...
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ISBN:
(数字)9781665413084
ISBN:
(纸本)9781665413084
This paper presents a six degree of freedom (DoF) active sample-tracking robotic 3D measurement system for in-line applications. The integrated measurement platform (MP) of the state-of-the-art system is augmented by a compact and tailored in-plane tracking sensor system. Based on two position-sensitive devices and laser markers, relative motion between the 3D measuring tool on the MP and a sample surface is measured with sub-micrometer resolution. Applying a tailored high performance PID control architecture, a six DoF sample-tracking control bandwidth of about 450 Hz is achieved. In a translational in-plane DoF, vibrations with a dominant component at 66 Hz are reduced from 9.44 mu m rms by a factor of 10 to 931nmrms. Experimental results successfully proof the system concept of robotic 3D measurements with sub-micrometer precision directly in a challenging vibration-prone environment.
The wireless power transfer system of double-sided LCC topology has the characteristics of high-order and nonlinear, which increases the difficulty of controller design. In this paper, a voltage stabilizing closed-loo...
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ISBN:
(纸本)9781665486682
The wireless power transfer system of double-sided LCC topology has the characteristics of high-order and nonlinear, which increases the difficulty of controller design. In this paper, a voltage stabilizing closed-loop control system based on the model of generalized state space average (GSSA) and order reduction is proposed. The GSSA model of the system is established, and the small signal model is established according to the nonlinear characteristics of the system;Then, through the balanced order reduction method, the 17th order system is reduced to the 3rd order system;Furthermore a PI controller is designed to ensure the stability of the 6.6kw electric vehicle wireless charging system, output voltage;Finally, by the simulation results of the closed-loop control system, that the transient response time of output voltage is 15ms and the response time of load switching is 14ms, and the effectiveness of the proposed mothed is verified.
Permanent magnet synchronous machines (PMSMs) have got a wide range of application in different power ratings and different reliability levels required. To satisfy the requirements for a wide range of the applications...
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ISBN:
(纸本)9781665467384
Permanent magnet synchronous machines (PMSMs) have got a wide range of application in different power ratings and different reliability levels required. To satisfy the requirements for a wide range of the applications, while increasing the system reliability and power ratings and decreasing the weight, cost and repair time, modular motor drives for PMSMs could play an important role in improving the maturity of the technology. However, parallel operation of motor drives will introduce other challenges to the system, some of which will increase the power losses and reduce the system efficiency. There have been some solutions for similar issues in the literature, but not all of them can be applied in PMSM drive applications for the limits associated with specific applications. So, in this paper, a throughout review has been performed on solutions to mitigate the parallelization challenges which is accompanied by relative stability analysis for software-based methods.
For the first time, a CMOS compatible calorimetric flow sensor with a dual-heater (DH) structure is proposed instead of using the traditional single-heater (SH) design. CFD simulation results demonstrated that the DH ...
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Potholes pose a significant risk to vehicles and pedestrians, necessitating prompt action to be addressed. In this project, a strategy is incorporated for pothole detection, utilizing the YOLOv8 object detection algor...
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