Gyro-based pole jump zero and open phase protection system and method

Abstract

The application provides a power collecting rod zero jump and open-phase protection system and method based on a gyroscope. A gyroscope sensor is used to detect the posture of the power collecting rod. When the posture does not conform to the predetermined posture data value threshold, a tripping operation is performed, and the misjudgment phenomenon does not occur. The tripping operation can be performed in time when the power collecting rod trips the power supply slide contact line, the abnormal power supply is disconnected, and thus the equipment is protected. The high-level slide contact line power supply port machine equipment can be popularized and used.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of wharf equipment, and particularly relates to a power collecting rod zero jump and phase loss protection system and method based on a gyroscope. BACKGROUND

[0002] The wharf equipment is in contact with the power supply slide contact wire through the power collecting rod to be powered to work. In the running process, the power collecting rod and the slide contact wire are in a sliding connection state, and the disconnection phenomenon may occur, which not only affects the normal operation of the equipment, but also causes safety accidents.

[0003] The existing power collecting rod state detection device has two kinds of proximity induction detection and voltage detection. The proximity induction detection is prone to false detection due to a small detection surface. The power collecting rod carbon brush and the slide contact wire contact surface exist instantaneous insufficient contact, which may cause voltage detection failure. With the large popularity of the energy feedback system, the energy generated during operation is fed back to the power grid through the slide contact wire, so that the voltage detection is also inaccurate. SUMMARY

[0004] An object of the present application is to provide a power collecting rod zero jump and phase loss protection system and method based on a gyroscope, and to provide at least the advantages to be described later.

[0005] Another object of the present application is to provide a power collecting rod zero jump and phase loss protection system and method based on a gyroscope. The gyroscope is used to detect the posture of the power collecting rod. When the posture does not meet the predetermined posture data value threshold, the tripping operation is performed, and the misjudgment phenomenon does not occur. The tripping can be performed in time when the power collecting rod jumps off, and the system can be widely used in the overhead slide contact wire power supply port.

[0006] The technical solution of the present application is as follows:

[0007] The power collecting rod zero jump and phase loss protection system based on a gyroscope comprises:

[0008] Four gyroscope sensors are arranged on each power collecting rod and are used to detect the current posture data value of each power collecting rod in real time;

[0009] A data transmission unit is electrically connected with the gyroscope sensor;

[0010] A controller has a predetermined posture data value threshold of each power collecting rod stored therein, and receives the current posture data value sent by the data transmission unit. When the current posture data value exceeds the predetermined posture data value threshold, it is judged that the power collecting rod has a fault, and a tripping signal is sent;

[0011] A circuit breaker is arranged between the power collecting rod and the to-be-powered equipment, and is electrically connected with the controller and receives the tripping signal to disconnect the circuit between the power collecting rod and the to-be-powered equipment.

[0012] Preferably, the power supply is connected to the gyroscope sensor, the data transmission unit and the controller.

[0013] Preferably, the power supply comprises:

[0014] a capacitor energy storage circuit connected to the AC power supply;

[0015] a rectifier transformer circuit connected to the output end of the capacitor energy storage circuit, which supplies power to the gyroscope sensor, the data transmission unit and the controller.

[0016] Preferably, the output end of the capacitor energy storage circuit is further provided with a circuit breaker power supply circuit, which is connected to the circuit breaker and supplies power to it.

[0017] Preferably, the data transmission unit is a wireless signal transceiver or a data bus.

[0018] A method for protecting the zero jump and phase loss of a power collection pole based on a gyroscope, comprising the following steps:

[0019] Pre-storing the predetermined attitude data threshold of each power collection pole;

[0020] Receiving the current attitude data value of each power collection pole detected by the gyroscope sensor in real time;

[0021] Comparing the current attitude data value with the predetermined attitude data threshold, and determining that a fault may occur when the current attitude data value of any one of the power collection poles exceeds the predetermined attitude data threshold;

[0022] Pre-setting a fluctuation time, and comparing the current attitude data value with the predetermined attitude data threshold again after the fluctuation time, and determining that a fault has occurred when the current attitude data value of any one of the power collection poles exceeds the predetermined attitude data threshold, issuing a tripping signal and completing tripping.

[0023] Preferably, the method further comprises performing Kalman filter algorithm optimization processing on the data detected by the gyroscope sensor before receiving the current attitude data value of each power collection pole detected by the gyroscope sensor.

[0024] Preferably, the Kalman filter processing comprises:

[0025] Set an initial Kalman gain value;

[0026] Receive initial attitude data value sent by the gyroscope sensor, and calculate initial attitude data estimation value according to the initial Kalman gain value, the initial attitude data value and initial predetermined attitude threshold value;

[0027] Calculate initial attitude data deviation according to the initial attitude data estimation value and the initial predetermined attitude threshold value, and calculate current Kalman gain value as corrected Kalman gain value;

[0028] Take the corrected Kalman gain value as the initial Kalman gain value for subsequent calculation, so as to obtain the attitude data estimation value at each time and take it as the current attitude data value of the current pole.

[0029] The present application has the following beneficial effects:

[0030] The three-dimensional attitude detection of the current pole is carried out by using the gyroscope sensor, and the detection data is accurate;

[0031] The working power supply is a direct current capacitor power supply, which can stably supply power to the whole system.

[0032] Other advantages, objects and features of the present application will be partly embodied in the following description, and will be partly understood by those skilled in the art through research and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The architecture diagram of one embodiment of the pole zero jump and phase loss protection system based on the gyroscope provided by the present application;

[0034] Figure 2 The circuit diagram of the direct current capacitor power supply in one embodiment of the pole zero jump and phase loss protection system based on the gyroscope provided by the present application;

[0035] Figure 3 The flowchart of the pole zero jump and phase loss protection method based on the gyroscope provided by the present application. DETAILED DESCRIPTION

[0036] The present application will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description.

[0037] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0038] As Figure 1As shown, the application provides a power pole zero jump and phase loss protection system based on a gyroscope, which comprises:

[0039] Four gyroscope sensors, which are arranged on each power pole respectively and detect current posture data values of each power pole in real time;

[0040] A data transmission unit, which is electrically connected with the gyroscope sensors and is an RF / 485 / CAN transceiver, any of which can be adopted;

[0041] A controller, which has preset posture data value thresholds of each power pole and receives current posture data values sent by the data transmission unit, judges that the power pole is faulty when the current posture data values exceed the preset posture data value thresholds, and sends a tripping signal;

[0042] A circuit breaker, which is arranged between the power pole and a device to be powered and is electrically connected with the controller and receives the tripping signal to disconnect the circuit between the power pole and the device to be powered.

[0043] In one embodiment of the power pole zero jump and phase loss protection system based on a gyroscope provided by the application, a power supply is further included, which is electrically connected with the gyroscope sensors, the data transmission unit and the controller, and the power supply is a direct current capacitor power supply.

[0044] As shown, Figure 2 In one embodiment of the power pole zero jump and phase loss protection system based on a gyroscope provided by the application, the power supply comprises:

[0045] A capacitor energy storage circuit connected with an alternating current power supply, i.e. a super capacitor energy storage part;

[0046] A rectifier transformer circuit connected with an output end of the capacitor energy storage circuit, which supplies power to the gyroscope sensors, the data transmission unit and the controller, i.e. a working power supply.

[0047] In one embodiment of the power pole zero jump and phase loss protection system based on a gyroscope provided by the application, an output end of the capacitor energy storage circuit is further provided with a circuit breaker power supply circuit, which is electrically connected with the circuit breaker and supplies power to it, and has two kinds of isolated tripping drive and 24V tripping drive, which can be suitable for different types of circuit breakers.

[0048] In one embodiment of the power pole zero jump and phase loss protection system based on a gyroscope provided by the application, the data transmission unit is a wireless signal transceiver or a data bus.

[0049] As shown, Figure 3As shown, the power pole zero jump and phase failure protection method based on the gyroscope comprises the following steps:

[0050] Pre-stored are predetermined posture data threshold values of each power pole;

[0051] Receiving current posture data values of each power pole detected by the gyroscope sensor in real time;

[0052] Comparing the current posture data values with the predetermined posture data threshold values, when the current posture data value of any one of the power poles exceeds the predetermined posture data threshold value, it is judged that a fault may occur, i.e., a pre-alarm is given;

[0053] Pre-set is a fluctuation time, when the fluctuation time is elapsed, the current posture data values are compared with the predetermined posture data threshold values again, when the current posture data value of any one of the power poles exceeds the predetermined posture data threshold value, it is judged that a fault has occurred, a tripping signal is given, and tripping is completed, i.e., repeated analysis is performed.

[0054] In one embodiment of the power pole zero jump and phase failure protection method based on the gyroscope provided by the application, before receiving the current posture data values of each power pole detected by the gyroscope sensor, the data detected by the gyroscope sensor is subjected to Kalman filtering algorithm optimization processing, and the Kalman filtering processing is a common means for processing the data of the gyroscope, and thus will not be described in detail herein.

[0055] In one embodiment of the power pole zero jump and phase failure protection method based on the gyroscope provided by the application, the Kalman filtering processing comprises:

[0056] Setting an initial Kalman gain value;

[0057] Receiving an initial posture data value sent by the gyroscope sensor, and calculating an initial posture data estimation value according to the initial Kalman gain value, the initial posture data value and an initial predetermined posture threshold value;

[0058] Calculating an initial posture data deviation according to the initial posture data estimation value and the initial predetermined posture threshold value, and calculating a current Kalman gain value as a corrected Kalman gain value;

[0059] Taking the corrected Kalman gain value as an initial Kalman gain value for subsequent calculation, and further obtaining a posture data estimation value at each moment, and taking it as a current posture data value of the power pole.

[0060] The posture data in the application comprises acceleration and angle, etc., which can be selected by those skilled in the art as needed, and the specific calculation process will not be described in detail herein.

[0061] The power collecting rod zero jump and phase loss protection system based on the gyroscope can continuously trip 6 times in a static test environment, the capacitor capacity can be expanded, and the system trips immediately when the power collecting rod is pulled out in a dynamic situation.

[0062] The power collecting rod zero jump and phase loss protection system based on the gyroscope and the method can be popularized in high-level slide contact line power supply port machine equipment.

[0063] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be applied to various fields suitable for the present application, and other modifications can be easily realized by those skilled in the art, and thus the present application is not limited to specific details without departing from the general concept defined by the claims and the equivalent range.

Claims

1. A pole zero phase failure protection system based on gyro, characterized in that, The utility model relates to a power collecting pole fault detection system, comprising: four gyroscopes, which are respectively arranged on each power collecting pole and detect current attitude data values of each power collecting pole; a data transmission unit, which is electrically connected with the gyroscopes; a controller, which has preset a predetermined attitude data value threshold of each power collecting pole, receives the current attitude data values sent by the data transmission unit, judges that the power collecting pole has a fault when the current attitude data values exceed the predetermined attitude data value threshold, and sends a tripping command; a circuit breaker, which is arranged between the power collecting pole and a port equipment to be powered, is electrically connected with the controller and receives the tripping command, and disconnects the circuit between the power collecting pole and the port equipment to be powered. In the controller, a fluctuation time is also preset, and the current attitude data values and the predetermined attitude data threshold are compared again after the fluctuation time, and the power collecting pole is judged to have a fault and the tripping command is sent when the current attitude data values of any power collecting pole exceed the predetermined attitude data threshold. The utility model further comprises a power supply, which is electrically connected with the gyroscopes, the data transmission unit and the controller, and is a direct-current capacitor power supply.

2. The gyro-based pole zero open-phase protection system of claim 1, wherein, The power supply comprises:

3. The gyro-based pole zero open-phase protection system of claim 2, wherein, a capacitor energy storage circuit connected with an alternating-current power supply; a rectifier and transformer circuit connected with the output end of the capacitor energy storage circuit, which supplies power to the gyroscopes, the data transmission unit and the controller. The output end of the capacitor energy storage circuit is also provided with a circuit breaker power supply circuit, which is electrically connected with the circuit breaker and supplies power to the circuit breaker.

4. The gyro-based pole zero open-phase protection system of claim 3, wherein, The data transmission unit is a wireless signal transceiver or a data bus.

5. The gyro-based pole zero open-phase protection system of claim 1, wherein, The utility model further comprises the following steps:

6. A method for zero-phase-loss protection of a pole based on a gyroscope, characterized in that prestoring the predetermined attitude data threshold of each power collecting pole; receiving the current attitude data values of each power collecting pole detected by the gyroscopes; comparing the current attitude data values with the predetermined attitude data threshold, and judging that the power collecting pole may have a fault when the current attitude data values of any power collecting pole exceed the predetermined attitude data threshold; presetting a fluctuation time, comparing the current attitude data values with the predetermined attitude data threshold again after the fluctuation time, and judging that the power collecting pole has a fault and sending the tripping command when the current attitude data values of any power collecting pole exceed the predetermined attitude data threshold; In the controller, a fluctuation time is also preset, and the current attitude data values and the predetermined attitude data threshold are compared again after the fluctuation time, and the power collecting pole is judged to have a fault and the tripping command is sent when the current attitude data values of any power collecting pole exceed the predetermined attitude data threshold. Before receiving the current attitude data values of each power collecting pole detected by the gyroscopes, the data detected by the gyroscopes is also subjected to Kalman filtering algorithm optimization processing. The Kalman filtering processing comprises: setting an initial Kalman gain value; receiving initial attitude data values sent by the gyroscopes, and calculating an initial attitude data estimation value according to the initial Kalman gain value, the initial attitude data values and an initial predetermined attitude threshold; calculating an initial attitude data deviation according to the initial attitude data estimation value and the initial predetermined attitude threshold, and calculating a current Kalman gain value as a corrected Kalman gain value; using the corrected Kalman gain value as the initial Kalman gain value for subsequent calculation to obtain attitude data estimation values at each time, which are used as the current attitude data values of the power collecting pole. ​

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