CN117907726A - Automatic detector for yaw collecting ring - Google Patents

Abstract

The application provides an automatic detector for a yaw collecting ring, which is used for solving the problem that the existing detection equipment in the prior art has single detection function and needs to carry multiple detection equipment during detection of the yaw collecting ring. The device comprises a power supply module, a CPU control module, an input and display module, a resistance detection module, an insulation detection module, a voltage display function detection module, a sensor fault diagnosis module and a detection port module; the resistance detection module, the insulation detection module, the voltage display function detection module, the sensor fault diagnosis module and the input and display and module are in data intercommunication with the CPU control module and the detection port module, and the power supply module respectively supplies power to the resistance detection module, the insulation detection module, the voltage display function detection module and the sensor fault diagnosis module; during detection, the detection port module is communicated with the yaw collecting ring to be detected. The application integrates multiple detection functions, reduces the carrying capacity of the inspection equipment and improves the inspection efficiency.

Description

A Yaw Collector Ring Automatic Detector

Technical Field

The invention relates to the field of wind power generation, in particular to an automatic detection instrument for yaw collector rings.

Background technique

With the continuous innovation and improvement of my country's wind power generation technology, the capacity and efficiency of wind turbines continue to increase. As a result, the number of power transmission cables for large-capacity units has increased, and a series of problems such as power cable cracking, eccentricity, bundling, entanglement, and interference have also followed. In order to help the development of the wind power industry and fundamentally solve the cable failure problem caused by the rapid growth of unit capacity, yaw collector rings are widely used in wind turbines.

During the use of wind turbine yaw collector rings, the performance of the yaw collector rings needs to be tested regularly to ensure their stability. There are many test items for wind turbine yaw collector rings, including dynamic resistance, static resistance, insulation, withstand voltage, PT on-off, temperature and humidity control logic, alarm on-off, and the conduction performance of each line. Therefore, on-site inspection of wind turbines requires the following equipment: multimeter, microresistance tester, megohmmeter, special temperature and humidity controller logic tooling, simulated temperature tooling, etc. There are many instruments required for testing, which are inconvenient to carry and inconvenient to troubleshoot on-site product problems. The detection efficiency is low, and ultimately a lot of manpower, material resources and time are consumed.

Summary of the invention

The purpose of the present invention is to provide an automatic yaw collector ring detector, which is used to solve the problem that the existing detection equipment in the prior art has a single detection function and multiple detection equipment needs to be carried when detecting yaw collector rings.

A yaw collector ring automatic detector, comprising a power supply module, a CPU control module, an input and display module, a resistance detection module, an insulation detection module, a voltage display function detection module, a sensor fault diagnosis module and a detection port module;

The resistance detection module, insulation detection module, voltage display function detection module, sensor fault diagnosis module and input and display module are all in data communication with the CPU control module, and the power supply module supplies power to the resistance detection module, insulation detection module, voltage display function detection module and sensor fault diagnosis module respectively;

The detection port module is connected with the resistance detection module, the insulation detection module, the voltage display function detection module and the sensor fault diagnosis module. During detection, the detection port module is connected with the yaw collector ring to be detected.

Optionally, the detection port module includes a resistance test clip module and a data detection port submodule, and the resistance test clip module is connected to the resistance detection module and the insulation detection module through a resistance measurement selection switch;

The data detection port submodule is connected to the voltage display function detection module and the sensor fault diagnosis module through a data measurement selection switch.

Optionally, the power module includes a power plug submodule, an AC power adapter submodule, a voltage stabilization/power management submodule and a built-in battery;

The power plug submodule is connected to the AC power adapter submodule, and the voltage stabilization/power management submodule is connected to the AC power adapter submodule; the yaw collector ring detector can be selectively powered by a built-in battery or an external power supply. When the yaw collector ring detector is powered by an external power supply, the power plug submodule is connected to the external power supply.

Optionally, the input and display module includes a display screen submodule and a keyboard submodule, and both the display screen submodule and the keyboard submodule are in data communication with the CPU control module.

Optionally, the resistance detection module includes a micro-resistance tester sub-module, and the micro-resistance tester sub-module is data-interoperable with the CPU control module;

During resistance detection, the resistance measurement selection switch controls the resistance test clip module to be connected to the microresistance tester submodule, the resistance test clip module is connected to a group of loops of the yaw collector ring to be detected, and the resistance detection module uses the volt-ampere method to detect the resistance of the loop.

Optionally, the insulation detection module includes a megohmmeter submodule, and the megohmmeter submodule is data-interoperable with the CPU control module;

During insulation testing, the resistance measurement selection switch controls the resistance test clip module to be connected to the megohmmeter submodule, the resistance test clip module is connected to both ends of the component to be tested of the yaw collector ring, and the insulation testing module uses Ohm's law to detect the insulation resistance value at both ends of the component to be tested of the yaw collector ring.

Optionally, the voltage display function detection module includes a multimeter submodule, and the multimeter submodule communicates data with the CPU control module;

When the voltage display function is detected, the data measurement selection switch controls the data detection port submodule to be connected to the multimeter submodule.

Optionally, the sensor fault diagnosis module includes a temperature sensor fault diagnosis submodule and a humidity sensor fault diagnosis submodule;

The temperature sensor fault diagnosis submodule includes an adjustable resistance submodule, and the adjustable resistance submodule is in data communication with the CPU control module. When diagnosing a temperature sensor fault, the data measurement selection switch controls the data detection port submodule to communicate with the temperature sensor fault diagnosis submodule, adjusts the resistance of the adjustable resistance submodule, and collects temperature change data of the temperature sensor;

The humidity sensor fault diagnosis submodule diagnoses the fault of the humidity sensor by receiving and judging the data. If no matching data is fed back to the CPU control module, it is determined to be a fault, otherwise, it is normal.

Due to the adoption of the above technical solution, the present invention has the following advantages:

1. This application integrates resistance detection, insulation detection, voltage display function detection and sensor fault diagnosis functions, reduces the amount of inspection equipment carried and improves inspection efficiency.

2. The present application sets a resistance test clip module and a data detection port submodule, and controls the resistance test clip module to be selectively connected to a resistance detection module and an insulation detection module through a resistance measurement selection switch, and controls the data detection port submodule to be selectively connected to a voltage display function detection module and a sensor fault diagnosis module through a data measurement selection switch, thereby reducing the setting of connection ports, reducing the number of connections during the detection process, reducing equipment costs, and improving detection efficiency.

Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings of the present invention are as follows.

FIG1 is a structural block diagram of the yaw collector ring detector of the present invention.

FIG. 2 is a block diagram showing the connection between the detection module and the detection port module of the present invention.

FIG3 is a circuit diagram of a microresistance tester submodule during detection according to the present invention.

FIG4 is a circuit diagram of the megohmmeter submodule of the present invention during detection.

FIG5 is a circuit diagram of the multimeter submodule during detection of the present invention.

FIG6 is a circuit diagram of the sensor fault diagnosis module during detection according to the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example:

An automatic yaw collector ring detector as shown in Figures 1 and 2 is characterized in that it includes a power module, a CPU control module, an input and display module, a resistance detection module, an insulation detection module, a voltage display function detection module, a sensor fault diagnosis module and a detection port module;

The resistance detection module, insulation detection module, voltage display function detection module, sensor fault diagnosis module and input and display module are all in data communication with the CPU control module, and the power supply module supplies power to the resistance detection module, insulation detection module, voltage display function detection module and sensor fault diagnosis module respectively;

The detection port module is connected with the resistance detection module, the insulation detection module, the voltage display function detection module and the sensor fault diagnosis module. During detection, the detection port module is connected with the yaw collector ring to be detected.

In this embodiment, the yaw collector ring detector of the present application integrates resistance detection, insulation detection, voltage display function detection and sensor fault diagnosis functions, which reduces the amount of inspection equipment carried and improves inspection efficiency.

In this embodiment, the yaw collector ring detector also includes a storage module and a data interface (USB interface). The storage module is used to store the detected yaw collector ring data, and the data interface is used to connect to external devices such as computers to realize the transmission of stored data.

As shown in FIG. 1 and FIG. 2 , the detection port module includes a resistance test clip module and a data detection port submodule, and the resistance test clip module is connected to the resistance detection module and the insulation detection module through a resistance measurement selection switch;

The data detection port submodule is connected to the voltage display function detection module and the sensor fault diagnosis module through a data measurement selection switch.

In this embodiment, by setting a resistance test clip module and a data detection port submodule, the resistance test clip module is controlled by a resistance measurement selection switch to be selectively connected to a resistance detection module and an insulation detection module, and the data detection port submodule is controlled by a data measurement selection switch to be selectively connected to a voltage display function detection module and a sensor fault diagnosis module, thereby reducing the setting of connection ports, reducing the number of connections during the detection process, reducing equipment costs, and improving detection efficiency.

In this embodiment, both the resistance test clip module and the data detection port submodule can use a resistance test clip, and the data detection port submodule can also use a conductive pen. The resistance measurement selection switch and the data measurement selection switch both select a contact conversion type relay, and the contact conversion type relay controls its connection port through the CPU control module.

As shown in Figures 1 and 2, the power module includes a power plug submodule, an AC power adapter submodule, a voltage regulator/power management submodule and a built-in battery;

The power plug submodule is connected to the AC power adapter submodule, and the voltage stabilization/power management submodule is connected to the AC power adapter submodule; the yaw collector ring detector can be selectively powered by a built-in battery or an external power supply. When the yaw collector ring detector is powered by an external power supply, the power plug submodule is connected to the external power supply.

In this embodiment, the AC power adapter submodule uses an external 12V dedicated AC power adapter.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the input and display module includes a display screen submodule and a keyboard submodule, and both the display screen submodule and the keyboard submodule are in data communication with the CPU control module.

In this embodiment, during detection, the detection personnel send detection instructions to the CPU control module through the keyboard sub-module, the CPU control module controls the corresponding module to perform detection, the CPU control module calculates the corresponding resistance, insulation resistance and other parameters according to the detection book, and sends them to the display screen sub-module for display output.

As shown in Figures 1, 2 and 3, the resistance detection module includes a micro-resistance tester submodule, and the micro-resistance tester submodule communicates data with the CPU control module;

During resistance detection, the resistance measurement selection switch controls the resistance test clip module to be connected to the microresistance tester submodule, the resistance test clip module is connected to a group of loops of the yaw collector ring to be detected, and the resistance detection module uses the volt-ampere method to detect the resistance of the loop.

In this embodiment, the microresistance tester submodule adopts a microresistance tester, and the power input terminal of the microresistance tester is connected to the power module of the present application. During resistance detection, instructions are sent to the CPU control module through the keyboard submodule, and the CPU control module controls the resistance measurement selection switch to connect with the microresistance tester submodule.

In this embodiment, as shown in FIG3 , the volt-ampere method is used to measure the resistance, a constant current is passed through the power module, and the voltage on the resistor is measured, U=R×I. Since the resistance is milliohms, the micro-resistance tester adopts a large current method and a method of amplifying the voltage signal to make the ADC chip recognize it and calculate the resistance value through the CPU control module. The method of amplifying the voltage signal is adopted, and the tiny voltage signal is amplified and then converted by AD, and the signal is sent to the CPU control module, and then the CPU control module calculates and displays the resistance value.

As shown in Figures 1, 2 and 4, the insulation detection module includes a megohmmeter submodule, and the megohmmeter submodule communicates data with the CPU control module;

During insulation testing, as shown in Figure 4, the resistance measurement selection switch controls the resistance test clip module to be connected to the megohmmeter sub-module, the resistance test clip module is connected to both ends of the component to be tested of the yaw collector ring, and the insulation detection module uses Ohm's law to detect the insulation resistance value at both ends of the component to be tested of the yaw collector ring.

In this embodiment, the megohmmeter sub-module selects a megohmmeter, and the megohmmeter power input terminal is connected to the power module of the present application. During insulation detection, an instruction is sent to the CPU control module through the keyboard sub-module, and the CPU control module controls the resistance measurement selection switch to be connected to the megohmmeter sub-module.

In this embodiment, as shown in FIG4 , the DC/AC circuit of the megohmmeter converts the 12V DC into a suitable AC signal, and after rectification and filtering by the boost circuit, a negative polarity DC high voltage of about 250V to 5000V is obtained and connected to the LINE terminal as the excitation voltage for the insulation test. The insulation resistance Rx to be measured is connected between the LINE and EARTH terminals, and the excitation voltage will generate a current Ix in the circuit of the measured resistance Rx and flow into the EARTH terminal. According to Ohm's law, the ratio of the voltage Ux across the measured resistance to the current Ix flowing through the measured resistance (Rx=Ux/Ix) is the resistance value of the measured resistance. Ux and Ix are measured respectively by the ADC, and then the resistance value of the measured insulation resistance is displayed by the CPU control module.

As shown in FIG. 1 , FIG. 2 and FIG. 5 , the voltage display function detection module includes a multimeter submodule, and the multimeter submodule is in data communication with the CPU control module;

When the voltage display function is detected, the data measurement selection switch controls the data detection port submodule to be connected.

In this embodiment, the multimeter sub-module uses a multimeter, as shown in Figure 5, the power input terminal of the multimeter is connected to the power module of the present application, and when the voltage display function is detected, an instruction is sent to the CPU control module through the keyboard sub-module, and the CPU control module controls the data measurement selection switch to be connected to the multimeter sub-module.

In this embodiment, the DC (12-32VDC) and AC (85-450VAC) power supply voltages are tested and displayed to provide a basis for determining the voltage fluctuation range and power supply health status (the sampling frequency is 100Hz).

As shown in FIG. 1 , FIG. 2 and FIG. 6 , the sensor fault diagnosis module includes a temperature sensor fault diagnosis submodule and a humidity sensor fault diagnosis submodule;

The temperature sensor fault diagnosis submodule includes an adjustable resistance submodule, and the adjustable resistance submodule is in data communication with the CPU control module. When diagnosing a temperature sensor fault, the data measurement selection switch controls the data detection port submodule to communicate with the temperature sensor fault diagnosis submodule, adjusts the resistance of the adjustable resistance submodule, and collects temperature change data of the temperature sensor;

The humidity sensor fault diagnosis submodule diagnoses the fault of the humidity sensor by receiving and judging the data. If no matching data is fed back to the CPU control module, it is determined to be a fault, otherwise, it is normal.

In this embodiment, the temperature value of the temperature sensor corresponds to the resistance value of the adjustable resistance submodule, and the temperature range of the temperature sensor is -50°C-100°C, and the resistance range is 80.31 ohms-138.51 ohms.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims (8)

1. A yaw collector ring automatic detector, characterized in that it includes a power module, a CPU control module, an input and display module, a resistance detection module, an insulation detection module, a voltage display function detection module, a sensor fault diagnosis module and a detection port module; The resistance detection module, insulation detection module, voltage display function detection module, sensor fault diagnosis module and input and display module are all in data communication with the CPU control module, and the power supply module supplies power to the resistance detection module, insulation detection module, voltage display function detection module and sensor fault diagnosis module respectively; The detection port module is connected with the resistance detection module, the insulation detection module, the voltage display function detection module and the sensor fault diagnosis module. During detection, the detection port module is connected with the yaw collector ring to be detected. 2. The yaw collector ring automatic detector according to claim 1, characterized in that the detection port module comprises a resistance test clip module and a data detection port submodule, and the resistance test clip module is connected to the resistance detection module and the insulation detection module through a resistance measurement selection switch; The data detection port submodule is connected to the voltage display function detection module and the sensor fault diagnosis module through a data measurement selection switch. 3. The yaw collector ring automatic detector according to claim 2, characterized in that the power module comprises a power plug submodule, an AC power adapter submodule, a voltage regulator/power management submodule and a built-in battery; The power plug submodule is connected to the AC power adapter submodule, and the voltage stabilization/power management submodule is connected to the AC power adapter submodule; the yaw collector ring detector can be selectively powered by a built-in battery or an external power supply. When the yaw collector ring detector is powered by an external power supply, the power plug submodule is connected to the external power supply. 4. An automatic yaw collector ring detector according to claim 3, characterized in that the input and display module includes a display screen submodule and a keyboard submodule, and the display screen submodule and the keyboard submodule both communicate data with the CPU control module. 5. The automatic yaw collector ring detector according to claim 4, characterized in that the resistance detection module comprises a micro-resistance tester submodule, and the micro-resistance tester submodule is data-interoperable with the CPU control module; During resistance detection, the resistance measurement selection switch controls the resistance test clip module to be connected to the microresistance tester submodule, the resistance test clip module is connected to a group of loops of the yaw collector ring to be detected, and the resistance detection module uses the volt-ampere method to detect the resistance of the loop. 6. The automatic yaw collector ring detector according to claim 4, characterized in that the insulation detection module comprises a megohmmeter submodule, and the megohmmeter submodule is data-interoperable with the CPU control module; During insulation testing, the resistance measurement selection switch controls the resistance test clip module to be connected to the megohmmeter submodule, the resistance test clip module is connected to both ends of the component to be tested of the yaw collector ring, and the insulation testing module uses Ohm's law to detect the insulation resistance value at both ends of the component to be tested of the yaw collector ring. 7. The yaw collector ring automatic detector according to claim 4, characterized in that the voltage display function detection module includes a multimeter submodule, and the multimeter submodule is data-interoperable with the CPU control module; When the voltage display function is detected, the data measurement selection switch controls the data detection port submodule to be connected to the multimeter submodule. 8. The yaw collector ring automatic detector according to claim 4, characterized in that the sensor fault diagnosis module comprises a temperature sensor fault diagnosis submodule and a humidity sensor fault diagnosis submodule; The temperature sensor fault diagnosis submodule includes an adjustable resistance submodule, and the adjustable resistance submodule is in data communication with the CPU control module. When diagnosing a temperature sensor fault, the data measurement selection switch controls the data detection port submodule to communicate with the temperature sensor fault diagnosis submodule, adjusts the resistance of the adjustable resistance submodule, and collects temperature change data of the temperature sensor; The humidity sensor fault diagnosis submodule diagnoses the fault of the humidity sensor by receiving and judging the data. If no matching data is fed back to the CPU control module, it is determined to be a fault, otherwise, it is normal.