Systemic solutions
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Automobile Industry
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Low Noise Solution For Intake And Exhaust Systems
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Interior Product Performance Optimization And Cost Reduction Solutions
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Low Noise Solution For Hydrogen Fuel Cell System
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Low Noise Solution For Vehicle Electric Drive System
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Low Noise Solution For Vehicle Air Conditioning System
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Vehicle Damping Layout Optimization And Lightweight Solutions
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Aviation Industry
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Other Industry
Systematic solutions for vibration and noise in the power industry
1. Introduction to the background of vibration and noise in the power industry
1.1 Equipment safety requirements:
The earthquake resistance of the equipment (applicable to all major equipment) during 30 years of operation. Currently, the main earthquake resistance is evaluated by two methods: · Spectral analysis
method:
· Standard requirements: GB 50260-2013; passed Seismic intensity and damping ratio determine the load size under different frequency excitations.
Time history analysis method:
Typical loads: sinusoidal beat waves, seismic waves, etc.
·Purpose of seismic analysis:
· Evaluate whether the dynamic strength of equipment under earthquake action meets the design requirements.
seismic response spectrum
sine beat wave
seismic waves
1.2 Noise environment requirements:
Power equipment (mainly: transformers, reactors, capacitors, cooling fans, converter valves, etc.) will produce audible noise due to electromagnetic force during operation, and its coverage frequency range is wide: · Transformer noise:
within 500Hz Mainly low-frequency noise;
· Reactor noise: Mainly medium and low-frequency noise;
· Capacitor noise: Due to its large number and the influence of harmonic currents, its noise covers a wide frequency range (low frequency to high frequency);
· Converter valve noise: Due to the influence of IGBT, the converter valve noise covers a very wide frequency range, and the high-frequency noise is relatively high.
Noise requirements:
· Carry out noise design for the entire substation or converter station in the early stage to effectively reduce the environmental noise of the entire station; ·
Carry out sound source side noise reduction design for key equipment;
· Real-time monitoring of the noise of key equipment to evaluate the health of the equipment status and subsequent maintenance status.
transformer
transformer
capacitor
substation
converter valve
2. BOACH acoustics systematic solution for vibration and noise in the power industry:
· Equipment structure design and strength analysis solutions
· Provide: equipment static strength, modal analysis/testing, dynamic strength analysis, earthquake resistance analysis, etc.
· Equipment/whole-site noise analysis and noise reduction design solutions:
· Provide: sound source Side equipment/whole station noise analysis/testing, equipment/whole station noise reduction structure design and sample production, etc.
·Software/hardware customized solutions:
· Provide: substation/equipment noise rapid estimation system development, noise real-time monitoring system development, etc.
Capacitor Noise Analysis
Equipment/whole station noise analysis and noise reduction design
2.1 Equipment structure design and strength analysis solutions
· Structural static strength analysis:
· Structural modal analysis/testing;
· Structural impact strength analysis and earthquake resistance analysis.
2.2 Equipment/whole station noise analysis and noise reduction design solutions:
· Provide equipment noise analysis and noise reduction design services to customers;
· Provide noise reduction product design, development and application for customers' actual products based on the BOACH material database (actual measurement results).
Capacitor Radiated Noise Analysis and Verification
Capacitor noise reduction product design, development and verification
Transformer Radiated Noise Analysis and Verification
Transformer noise reduction design and verification
Analysis and verification of radiated noise of converter valve
Noise analysis and noise reduction design based on materials and overall station acoustic environment
2.3 Software/hardware customized solutions
· Software development:
· Development of substation/equipment noise rapid estimation system;
· Hardware equipment research and development:
· Research and development of real-time noise monitoring and early warning system;
· For details, please refer to the WeChat public account article "BOACH Acoustic Noise Monitoring and Early Warning System".
Customized software development: cases of capacitor radiation noise, converter valve radiation noise, etc.
Contact us
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Address：
Room 901, Building 1, Phase 2, Yungu Phase 2, Fengxi New Town, Xixian New District, Xixian New District, Xi'an City, Shaanxi Province
Room 307, Building 1, Harbin Institute of Technology Robot Industrial Park, No. 488 Qianjin East Road, Economic Development Zone, Kunshan City, Jiangsu Province
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