CN205175551U - Wind generating set vibration detection system based on DSP - Google Patents

Abstract

The utility model relates to a DSP-based wind power generating unit vibration detection system<b>,</b> composed of a piezoelectric acceleration sensor acquisition circuit, an anti-aliasing low-pass filter, a voltage conditioning circuit, a power supply module, a crystal oscillator module, and F28335DSP Chip, watchdog module, CAN module, SCI communication module and host computer. The piezoelectric acceleration sensor acquisition circuit is responsible for collecting signals, and the collected signals are filtered by an anti-aliasing low-pass filter, and then the voltage is biased to the range of 0-3V by the voltage conditioning circuit, so that it is in the A/D of DSP The scope of conversion circuit processing is convenient for DSP to process information. The information processed by DSP is transmitted to the upper computer through the CAN module and the SCI communication module. In order to reduce the power consumption of the DSP chip, the power supply module is powered by dual power supplies. When the DSP collects information, the program runs away or crashes due to external interference. The DSP can be automatically reset through the watchdog module to make the program run normally. The utility model can realize the DSP to collect the vibration information of the wind power generating set, and send the collected information to the host computer after analysis, and is convenient to use and simple to operate.

Description

DSP-based Vibration Detection System for Wind Power Generating Set

technical field

The utility model relates to fault data collection of a wind power unit and belongs to the technical field of fault data collection.

Background technique

In recent years, the society has advocated low-carbon life, vitality power generation has seriously polluted people's living environment, and hydropower generation has caused serious damage to the cycle of the ecosystem. Therefore, the development of new energy has shown an unparalleled role. Compared with the high cost of solar power generation, wind power generation can greatly reduce the cost, but once a fault problem is encountered, it needs to be diagnosed and confirmed as soon as possible, otherwise the equipment failure will expand. cause incalculable losses. According to relevant data analysis, the incidence of accidents using the monitoring system can be reduced by 75%, and maintenance costs can be reduced by 25% to 50%.

The most important problem in the current wind turbine monitoring system is how to reduce sudden accidents in key parts of wind turbines, how to reduce unit maintenance costs and improve power generation efficiency. These problems must be solved for future wind power investment, construction and maintenance. A large number of facts and data show that the vibration monitoring system plays a vital role in understanding the performance status of complex equipment, discovering potential failures early, and ensuring the completion of engineering technology. In terms of economic benefits, it can improve equipment operation management and reduce maintenance costs.

Therefore, the development of wind turbine monitoring system is very important to make early warning of failures, reduce the maintenance and management costs of downtime, and improve the operational reliability of wind turbine annual units.

Contents of the invention

The technical problem to be solved by the utility model is to provide a DSP-based vibration detection system for wind power generators.

The utility model is a DSP-based wind power generation unit vibration detection system, the system mainly includes: piezoelectric acceleration sensor acquisition circuit, anti-aliasing low-pass filter, voltage conditioning circuit, power supply module, crystal oscillator module, F28335DSP chip, watch Watchdog module, CAN module, SCI communication module and host computer. The piezoelectric acceleration sensor acquisition circuit is responsible for collecting signals, and the collected signals are filtered by an anti-aliasing low-pass filter, and then the voltage is biased to the range of 0-3V by the voltage conditioning circuit, so that it is in the A/D of DSP The scope of conversion circuit processing is convenient for DSP to process information. The information processed by DSP is transmitted to the upper computer through the CAN module and the SCI communication module. In order to reduce the power consumption of the DSP chip, the power supply module adopts dual power supply. When the DSP collects information, the program runs away or crashes due to external interference. The DSP can be automatically reset through the watchdog module to make the program run normally. The utility model can realize the DSP to collect the vibration information of the wind power generating set, and send the collected information to the upper computer after analysis, and is convenient to use and simple to operate.

Preferably, the communication system between the DSP and the upper computer consists of a CAN module and an SCI communication module.

Preferably, the system has a voltage conditioning circuit between the anti-aliasing low-pass filter circuit and the DSP chip.

The beneficial effects of the utility model are: automatic detection can be realized, the failure of the generator set can be found early, the maintenance time is shortened, the safety is improved, and the use is convenient and the operation is simple.

Description of drawings:

For ease of illustration, the utility model is described in detail by the following specific implementation and accompanying drawings.

Fig. 1 is a structural block diagram of the system;

Figure 1 mainly includes piezoelectric acceleration sensor acquisition circuit, anti-aliasing low-pass filter, voltage conditioning circuit, power supply module, crystal oscillator module, F28335DSP chip, watchdog module, CAN module, SCI communication module and host computer.

detailed description:

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below through specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

The invention will be described in further detail in conjunction with the accompanying drawings, all of which are simplified schematic diagrams, which only illustrate the basic structure of the invention in a schematic manner, so they only show structures related to the invention.

As shown in Figure 1, this specific embodiment adopts the following technical solutions: a DSP-based wind turbine vibration detection system, which consists of a piezoelectric acceleration sensor acquisition circuit, an anti-aliasing low-pass filter, a voltage conditioning circuit, a power supply module, Crystal oscillator module, F28335DSP chip, watchdog module, CAN module, SCI communication module and host computer. The piezoelectric acceleration sensor acquisition circuit is responsible for collecting signals, and the collected signals are filtered by an anti-aliasing low-pass filter, and then the voltage is biased to the range of 0-3V by the voltage conditioning circuit, so that it is in the A/D of DSP The scope of conversion circuit processing is convenient for DSP to process information. The information processed by DSP is transmitted to the upper computer through the CAN module and the SCI communication module. In order to reduce the power consumption of the DSP chip, the power supply module adopts dual power supply. When the DSP collects information, the program runs away or crashes due to external interference. The DSP can be automatically reset through the watchdog module to make the program run normally. The utility model can realize the DSP to collect the vibration information of the wind power generating set, and send the collected information to the host computer after analysis, and is convenient to use and simple to operate.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. the vibration of wind generating set detection system based on DSP, it is characterized in that, it comprises piezoelectric acceleration sensor Acquisition Circuit, anti-aliasing low-pass filter, voltage modulate circuit, power module, crystal oscillator module, F28335DSP chip, watchdog module, CAN module, SCI communication module and host computer, piezoelectric acceleration sensor Acquisition Circuit is responsible for collection signal, the signal collected carries out filtering process through anti-aliasing low-pass filter, then by voltage modulate circuit by voltage bias within the scope of 0 ~ 3V, make it the scope of the A/D change-over circuit process being in DSP, be convenient to DSP process information, information after DSP process is transferred to host computer through CAN module and SCI communication module, in order to reduce the power consumption of dsp chip, power module adopts dual power supply.

2. a kind of vibration of wind generating set detection system based on DSP according to claim 1, is characterized in that: the communication system between described DSP and host computer is made up of CAN module and SCI communication module.

3. a kind of vibration of wind generating set detection system based on DSP according to claim 1, is characterized in that: described system has voltage modulate circuit between anti-aliasing low-pass filter and dsp chip.