scholarly journals Analysis and research on precise control mode of outdoor substation noise

2020 ◽  
Vol 194 ◽  
pp. 03018
Author(s):  
Luwen Xu ◽  
Bo Yang ◽  
Tao Yang ◽  
Anxin Zou ◽  
Lin Zhang
Keyword(s):  
Noise Control ◽  
Noise Analysis ◽  
Environmental Noise ◽  
Model Verification ◽  
Control Mode ◽  
Control Effect ◽  
Precise Control ◽  
Pre Treatment ◽  
Analysis System ◽  
Substation Planning

As people pay more and more attention to the environmental noise problem of substations, it is an important environmental protection work to carry out noise control of over-subjected substation. According to the lack of strict scientific argumentation, poor engineering control effect and high project cost, the paper proposes an accurate control model for outdoor substation noise. Taking the actual substation as an example, with the development of the substation environmental noise analysis system software SENCS, through six steps of data collection, model verification, pre-treatment analysis, optimization of governance plan and analysis of management effects, it is proposed the model of precise control of outdoor substation, which can play an important guiding role in outdoor substation noise control and new substation planning and design..

Research on Jing-Jin-Tang Power Grid Coordinated Control Strategy

2015 ◽  
Vol 799-800 ◽  
pp. 1306-1310
Author(s):  
Fang Ming Niu ◽  
Peng Wang ◽  
Yu Cheng ◽  
Xue Dong Ren
Keyword(s):  
Control Strategy ◽  
Power Grid ◽  
Coordinated Control ◽  
Automatic Generation ◽  
Control Mode ◽  
Practical Significance ◽  
Control Effect ◽  
Spare Capacity ◽  
New Strategy ◽  
Grid Operation

The disadvantage of Beijing-Tianjin-Tangshan power grid operation control mode is that the control effect is poorer and the spare capacity demand is big, this paper puts forward a new coordinated control strategy. First of all, this paper describes the relationship between the load, frequency, the output of generating unit, the tie line power and the area control error relationship of the whole power grid, according to the regional automatic generation control performance assessment criteria, concludes the characteristics of regional unit adjustment. This paper analyzes the contradiction between them, and then proposes a coordinated control strategy between the Beijing-Tangshan power grid and Tianjin power grid. The case simulation results prove the superiority and feasibility of the new coordinated control strategy. Compared with the original, the new strategy reduces the volatility of the unit, shortens the recovery time of frequency, and has a certain practical significance.

scholarly journals Leveraging Urban Sounds: A Commodity Multi-Microphone Hardware Approach for Sound Recognition

Proceedings ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 55
Author(s):  
Fabrizio Tappero ◽  
Rosa Alsina-Pagès ◽  
Leticia Duboc ◽  
Francesc Alías
Keyword(s):  
Artificial Intelligence ◽  
Hardware Implementation ◽  
Noise Analysis ◽  
Fog Computing ◽  
Sound Recognition ◽  
Sound Processing ◽  
Sound Analysis ◽  
Specific Focus ◽  
Analysis System ◽  
Government Legislation

City noise and sound are measured and processed with the purpose of drawing appropriate government legislation and regulations, ultimately aimed at contributing to a healthier environment for humans. The primary use of urban noise analysis is carried out with the main purpose of reporting or denouncing, to the appropriate authorities, a misconduct or correct a misuse of council resources. We believe that urban sounds carry more information than what it is extracted to date. In this paper we present a cloud-based urban sound analysis system for the capturing, processing and trading of urban sound-based information. By leveraging modern artificial intelligence algorithms running on a FOG computing city infrastructure, we will show how the presented solution can offer a valuable solution for exploiting urban sound information. A specific focus is given to the hardware implementation of the sound sensor and its multimicrophone architecture. We discuss how the presented architecture is designed to allow the trading of sound information between independent parties, transparently, using cloud-based sound processing APIs running on an inexpensive consumer-grade microphone.

scholarly journals On the perception of Limited Traffic Zones as urban noise mitigation action

Noise Mapping ◽  
2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Luigi Maffei ◽  
Maria Di Gabriele ◽  
Massimiliano Masullo ◽  
Francesco Aletta
Keyword(s):  
Traffic Management ◽  
Noise Control ◽  
Local Population ◽  
Environmental Noise ◽  
Subjective Perception ◽  
City Management ◽  
Noise Mitigation ◽  
Urban Noise ◽  
One Year ◽  
Sonic Environment

AbstractEnvironmental noise is a very important issue in modern urban agglomerations and new policies are being explored in order to reduce high sound-pressure levels from transportation and industry, especially in urban contexts. Considering this issue from the subjective perspective, environmental noise is often related to noise annoyance. Over the years, possible solutions were explored for urban sound planning beyond the mere noise control engineering techniques and a number of international projects proposed innovative approaches to deal with this issue: most of them were traffic-related. In order to support the city management, it is suitable to analyse possible indirect effects of traffic limitations on the perception of the sonic environment. Indeed, it was observed that even traffic management plans with no specific focus on noise mitigation are likely to have acoustic implications. The present study investigated the variations of the sonic environment induced by the implementation of a Limited Traffic Zone (LTZ) in the historic centre of Naples, in terms of objective parameters and perceived quality of the ‘sound’ component by means of noise and social surveys before, immediately after and one year after the LTZ implementation, in order to check for possible time effects. Results show that the sample interviewed immediately after the LTZ implementation reported overall positive opinions on the sonic environment and its variation, while the sample interviewed one year after tended to shift to more neutral opinions. This finding suggests that the LTZ could be considered an effective environmental strategy for the urban noise control, but it should be adequately actuated in order to preserve the achievements in terms of noise reduction and subjective perception by the local population.

scholarly journals Noise analysis and active noise control strategy of transcranial magnetic stimulation device

AIP Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 085010
Author(s):  
Chang Liu ◽  
Hongfa Ding ◽  
Xiao Fang ◽  
Zhou He ◽  
Zhixun Wang
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Control Strategy ◽  
Magnetic Stimulation ◽  
Noise Control ◽  
Noise Analysis ◽  
Active Noise Control ◽  
Active Noise

Experimental Analysis of Heavy Vehicle Hydraulic Retarder during Downhill Driving

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Zhang Yong
Keyword(s):  
Traditional Method ◽  
Control Method ◽  
Heavy Vehicle ◽  
Control Effect ◽  
Poor Control ◽  
Braking Performance ◽  
Precise Control ◽  
Low Energy Consumption ◽  
Closed Structure ◽  
Hydraulic Retarder

The traditional control method of hydraulic retarder has poor control effect, and a precise control method of hydraulic retarder for heavy vehicle running downhill is proposed in this paper. The dynamics of heavy vehicle is analysed. According to the analysis, the auxiliary braking performance of hydraulic retarder is studied. The hydraulic retarder assembly with closed structure is designed. On this basis, the preliminary control and secondary control of the hydraulic retarder are carried out to realize its precise control. Experimental results show that the dynamic deviation of the retarder speed controlled by the proposed method is 45% lower than that of the traditional method. The proposed method has low energy consumption and strong feasibility.

707 Improvement of the control effect of the noise control system arrayed noise insulation panels by control segmentation

2010 ◽  
Vol 2010 (0) ◽  
pp. _707-1_-_707-5_
Author(s):  
Daigo SATO ◽  
Katsuya YAMAMOTO ◽  
Daisuke YAMAMOTO ◽  
Shogo MAMADA ◽  
Masanori HANSAKA
Keyword(s):  
Control System ◽  
Noise Control ◽  
Control Effect
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