CN113406416A - Performance detection system of micro-power current power taking device for power transmission and transformation equipment - Google Patents

Performance detection system of micro-power current power taking device for power transmission and transformation equipment Download PDF

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CN113406416A
CN113406416A CN202110654941.7A CN202110654941A CN113406416A CN 113406416 A CN113406416 A CN 113406416A CN 202110654941 A CN202110654941 A CN 202110654941A CN 113406416 A CN113406416 A CN 113406416A
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power
current
taking device
value
electricity
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CN113406416B (en
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王真
路永玲
黄强
胡成博
秦剑华
杨景刚
张国江
张军
贾骏
刘子全
朱雪琼
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State Grid Jiangsu Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
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State Grid Jiangsu Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G17/00—Apparatus for or methods of weighing material of special form or property
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers

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Abstract

A performance detection system of a micro-power current electricity taking device for power transmission and transformation equipment comprises a voltage and current measurement module, a temperature detection module, a current control device, a main controller and a weight change sensing module of the electricity taking device; the main controller adjusts the output current of the primary side of the current control device according to the calibrated rated working current; the voltage and current measuring module is connected with a load under a rated working condition and is used for detecting the voltage and the output current value of the output end; the temperature detection module measures the temperature value of the micropower current electricity taking device; the weight change sensing module of the electricity taking device senses the weight value change condition of the electricity taking device in real time; the main controller calculates the real-time power taking power value of the power taking device based on the output end voltage and the output current value detected by the voltage and current measuring module. The invention can effectively test the working performance of the micro-power current electricity-taking device, and ensures that the micro-power current electricity-taking device can safely and stably run by detecting the electricity-taking power and the temperature rise.

Description

Performance detection system of micro-power current power taking device for power transmission and transformation equipment
Technical Field
The invention belongs to the technical field of power transmission and transformation equipment, relates to detection of a micropower current electricity taking device of the power transmission and transformation equipment, and particularly relates to a system for detecting the working performance of the micropower current electricity taking device for the power transmission and transformation equipment.
Background
The sensor is a collection terminal of electric quantity and state quantity of a power grid, is a perception nerve ending of the intelligent power grid, and plays a fundamental and wide role in safe and stable operation of the power grid. At present, with the development of a smart power grid, a plurality of sensing devices of non-electric quantity and auxiliary information are deployed on a large scale, but the problems of complex power supply, single power supply mode and the like gradually appear in practical application, and the breadth and the depth of power grid sensing are severely limited. The current electricity taking technology can be applied to various power transmission and transformation equipment occasions, for example, a current electricity taking system of a power transmission line, an energy taking device is in a special application environment, and the energy taking device needs to meet the requirements of electricity taking power and the condition that the temperature rise cannot be too high. At present all kinds of micropower electric current get electric installation is various, in order to guarantee sensor working property and stability, carry out independent test to local performance among the prior art many to rely on complicated expensive check out test set cooperative operation, it detects in a flexible way to be difficult to accomplish convenient setting, and the intelligent detection system of integrated design who gets electric installation working property is urgent to wait to propose specially for the micropower electric current for power transmission and transformation equipment.
The invention content is as follows:
the invention discloses a performance detection system of a micro-power current electricity taking device for power transmission and transformation equipment, which aims to solve the problem of integrated intelligent detection of the micro-power current electricity taking device for the power transmission and transformation equipment, flexibly test the working performance of a sensor and ensure the normal and stable work of the sensor.
In order to achieve the purpose, the invention adopts the technical scheme that:
a performance detection system of a micro-power current electricity taking device for power transmission and transformation equipment comprises a voltage and current measurement module, a temperature detection module, a current control device, a main controller and a weight change sensing module of the electricity taking device; the method is characterized in that:
the main controller adjusts the output current of the primary side of the current control device according to the calibrated rated working current; the voltage and current measuring module is connected with a load under a rated working condition and is used for detecting the voltage and the output current value of the output end;
the temperature detection module measures the temperature value of the micropower current electricity taking device;
the weight change sensing module of the electricity taking device senses the weight value change condition of the electricity taking device in real time;
the main controller calculates the real-time power taking power value of the power taking device based on the output end voltage and the output current value detected by the voltage and current measuring module.
The invention further comprises the following preferred embodiments:
the power taking device performance detection system further comprises a liquid crystal display module, and the controller issues real-time power taking power data, temperature rise data and weight value to the liquid crystal display module to display related detection results in real time.
The method comprises the steps that a real-time power-taking minimum required value, a temperature rise maximum threshold value and a weight change threshold value are arranged in a main controller, and when the power-taking power is lower than a set power-taking minimum required value or the temperature rise exceeds a set temperature rise maximum threshold value or the weight change value is larger than a set weight change threshold value, a liquid crystal display module displays relevant numerical values in a flashing mode to give an alarm.
The voltage and current measuring module is installed on a test loop with controllable current, the secondary side of the power taking device is connected with the input end of the rectification voltage regulating device, the output end of the rectification voltage regulating device is connected with the test load resistor, and the output voltage and the output current value are detected at the output end of the rectification voltage regulating device.
The output voltage of the rectification voltage-regulating device is set to be 3V, and the load resistor for testing is selected to be 2k omega.
The temperature detection module adopts a digital temperature sensor to measure the temperature change condition and the environmental temperature value of the power taking device during work and transmits the temperature change condition and the environmental temperature value to the main controller by adopting simplex communication.
The power taking device weight change sensing module comprises a comparison power taking device which is the same as the current power taking device to be detected in type and initial weight, the comparison power taking device is hung at a position near the current power taking device to be detected through a tension sensor or hung on a different phase line with the primary side of the current power taking device to be detected in different sequence through the tension sensor, the current voltage which is the same as that of the current power taking device to be detected is applied to a coil of the comparison power taking device, and the tension sensor uploads a tension measured value to a main controller in real time through wireless communication to serve as a weight measured value of the current power taking device to be detected.
The real-time electricity taking power is calculated according to the following formula:
Pshi＝0.2P-40ms+0.3P-20ms+0.5P0；
the temperature rise is calculated by the following formula:
Figure BDA0003112285500000021
the weight change value is calculated as follows:
Gbianhua＝Flali-Gchushi；
when any one of the following conditions is met, the main controller controls the liquid crystal display module to display related numerical values in a flashing mode:
Figure BDA0003112285500000031
wherein, PshiFor real-time power supply of the calculation, P-40msFor a power value, P, calculated from the output voltage and output current values collected 40ms before the current time-20msFor a power value, P, calculated from the output voltage and output current values taken 20ms ago at the present moment0The power value is calculated according to the output voltage and the output current value acquired at the current moment; t iswenshengCalculated for the current temperature rise, T-60ms、T-40ms、T-20ms、T0The temperature values T of the electricity taking device at the current sampling time and 60ms, 40ms and 20ms before the current sampling time respectivelyhuanjingThe ambient temperature value at the sampling moment; gbianhuaFor the current weight change value, FlaliTension value of tension sensor for suspension contrast electricity-taking device, GchushiComparing the initial weight of the power taking device; pthr-For the set minimum required value of the power taking power, 80 percent of rated power value T is takenthr+Setting the maximum temperature rise threshold value as 0.95 times of rated allowable temperature rise GthrThe weight change threshold is set to be 1.25 times of the original weight of the power-taking device.
The running state of the power taking device is also evaluated in the main controller:
calculating the weight parameter evaluation value K of the power taking device according to the following formula1，
Evaluation value of power-taking device
Figure BDA0003112285500000032
α1Value of 10, FlaliTension value of tension sensor for suspension contrast electricity-taking device, GchushiComparing the initial weight of the power taking device;
calculating the estimated value K of the rated working condition output power according to the following formula2：
Figure BDA0003112285500000033
In the formula, three different primary side current magnitudes, namely 20%, 60% and 100% of rated current, are respectively selected from small to large, and the output powers obtained through calculation after measurement are respectively P1、P2、P3The theoretical power-taking power value when the primary side current is 20%, 60% and 100% of the rated current is P10、P20、P30；α2,α3,α4The values of (A) are respectively 100, 80 and 50;
the evaluation value of the temperature under the rated working condition is calculated according to the following formula:
Figure BDA0003112285500000041
wherein, t0To obtain the initial temperature of the electric device, t1For measuring the temperature, alpha, of the electric power-taking device5The value is 10;
the overall evaluation value of the power-taking device is represented as K ═ K1+K2+K3When K is less than 1.25, the working performance of the dereferencing device is considered to be good, and when K is more than or equal to 1.25, K is more than or equal to 1.25<And when the K is more than or equal to 1.5, the electricity taking device needs to be maintained regularly, and quit the operation.
The invention has the advantages that the system mainly comprises the functions of regulating the current size of the power taking primary side, detecting the power taking power of the power taking device, detecting the temperature rise of the power taking device, displaying the detection result and the like.
Description of the drawings:
FIG. 1 is a schematic view of a system for detecting the performance of a micropower current electricity-taking device for power transmission and transformation equipment according to the present invention
The specific implementation mode is as follows:
the invention will now be described more fully hereinafter with reference to the accompanying drawings in which:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
The micro-power current electricity taking device installed on the power line is adopted to achieve real-time acquisition of energy, and the problem that equipment is inconvenient to acquire electric energy can be effectively solved. Various kinds of micro-power current power taking devices are various at present, in order to guarantee working performance and stability of the sensor, independent testing is conducted on local performance in the prior art, and the device depends on complex and expensive detection equipment for cooperative operation, so that flexible detection is difficult to achieve in convenient setting. In order to ensure the working performance and reliability of the micro-power current electricity taking device, an intelligent detection system with integrated design aiming at the working performance of the micro-power current electricity taking device for the power transmission and transformation equipment needs to be specially proposed. As shown in fig. 1, the detection and evaluation method for the micro-power current power-taking device provided by the invention mainly comprises the following steps:
a performance detection system of a micro-power current power taking device for power transmission and transformation equipment comprises a voltage and current measurement module, a temperature detection module, a current control device, a main controller, a power taking device weight change sensing module and a liquid crystal display module.
And the main controller adjusts the output current of the primary side of the current control device according to the calibrated rated working current.
The voltage and current measuring module is connected with a load under a rated working condition and is used for detecting the voltage and the output current value of the output end; as shown in fig. 1, a current control device is used as an energy standard source, a circuit wire passes through the center of a power-taking device, and the wire and the power-taking device keep a vertical posture. And selecting a current control device with a current adjustable range meeting the requirement according to the calibration parameters of the measured micro-power current power taking device, such as the parameters of rated working current, rated working frequency, rated continuous tolerance current and the like. The power taking device is installed on a current controllable test loop, the secondary side of the power taking device is connected with the input end of the rectification voltage regulating device, the output end of the rectification voltage regulating device is connected with a test load resistor, and the output end of the rectification voltage regulating device detects the conditions of output voltage and current. For example, the rectified voltage-regulating output voltage is uniformly set to be 3V, and the load resistance for testing is selected to be 2k omega.
In the present application, the real-time power taking power is calculated according to the following formula:
Pshi＝0.2P-40ms+0.3P-20ms+0.5P0；
wherein, PshiFor real-time power supply of the calculation, P-40msFor a power value, P, calculated from the output voltage and output current values collected 40ms before the current time-20msFor a power value, P, calculated from the output voltage and output current values taken 20ms ago at the present moment0The power value is calculated according to the output voltage and the output current value collected at the current moment.
The temperature detection module measures the temperature value of the micropower current electricity taking device. The temperature detection module adopts a digital temperature sensor to measure the temperature change condition of the power taking device during the work and transmits the temperature change condition to the singlechip controller by adopting simplex communication, for example, the digital temperature sensor such as BS18B20 can be used as a main chip of the temperature measurement module to realize high-precision real-time temperature monitoring, and the measured data is transmitted to the singlechip controller module by adopting simplex communication. Because the micro-power current electricity taking device for the power transmission and transformation equipment is usually arranged outdoors, the environment generally has great influence on the measured temperature, and the measured temperature value is calculated by adopting the following method:
Figure BDA0003112285500000051
in the formula, Ttar1、Ttar2……TtarmAnd representing the continuous m times of temperature measurement values, and calculating the temperature value as an actually measured temperature value T through the formula.
In the preferred implementation of the present application, the real-time measured temperatures 40ms before, 20ms before and 20ms before the current time are selected for weighting calculation as the measured temperature T
Figure BDA0003112285500000061
P-40msFor a power value, P, calculated from the output voltage and output current values collected 40ms before the current time-20msThe power value is calculated according to the output voltage and the output current value collected 20ms before the current moment.
The power taking device weight change sensing module comprises a comparison power taking device which is the same as the current power taking device to be detected in type and initial weight, the comparison power taking device is hung at a position near the current power taking device to be detected through a tension sensor or hung on a different phase line with the primary side of the current power taking device to be detected in different sequence through the tension sensor, the current voltage which is the same as that of the current power taking device to be detected is applied to a coil of the comparison power taking device, and the tension sensor uploads a tension measured value to a main controller in real time through wireless communication to serve as a weight measured value of the current power taking device to be detected. The weight change sensing module of the electricity taking device is mainly used for detecting the state of the electricity taking device under the conditions of long-term exposure to the sun, wind erosion, rain and the like, including corrosion, moisture, even freezing and the like.
The weight change value is calculated as follows:
Gbianhua＝Flali-Gchushi；
Gbianhuafor the current weight changeValue, FlaliTension value of tension sensor for suspension contrast electricity-taking device, GchushiTo compare the initial weight of the power take-off.
The weight change sensing module of the electricity taking device senses the weight value change condition of the electricity taking device in real time; the main controller calculates a real-time power taking power value of the power taking device based on the output end voltage and the output current value detected by the voltage and current measuring module; the controller issues the real-time power taking data, the temperature rise data and the weight value to the liquid crystal display module, and relevant detection results are displayed in real time.
The method comprises the steps that a real-time power-taking minimum required value, a temperature rise maximum threshold value and a weight change threshold value are arranged in a main controller, and when the power-taking power is lower than a set power-taking minimum required value or the temperature rise exceeds a set temperature rise maximum threshold value or the weight change value is larger than a set weight change threshold value, a liquid crystal display module displays relevant numerical values in a flashing mode to give an alarm.
In a preferred implementation of the present application, the main controller controls the liquid crystal display module to display the relevant numerical value in a blinking manner when any one of the following conditions is satisfied:
Figure BDA0003112285500000062
Pthr-for the set minimum required value of the power taking power, 80 percent of rated power value T is takenthr+Setting the maximum temperature rise threshold value as 0.95 times of rated allowable temperature rise GthrThe weight change threshold is set to be 1.25 times of the original weight of the power-taking device.
In this application embodiment, main controller still evaluates getting the running state of electric installation:
calculating the weight parameter evaluation value K of the power taking device according to the following formula1，
Evaluation value of power-taking device
Figure BDA0003112285500000071
α1Value of 10, FlaliFor suspension contrastTension value of tension sensor of power-taking device, GchushiComparing the initial weight of the power taking device;
calculating the estimated value K of the rated working condition output power according to the following formula2：
Figure BDA0003112285500000072
In the formula, three different primary side current magnitudes, namely 20%, 60% and 100% of rated current, are respectively selected from small to large, and the output powers obtained through calculation after measurement are respectively P1、P2、P3The theoretical power-taking power value when the primary side current is 20%, 60% and 100% of the rated current is P10、P20、P30；α2,α3,α4The values of (A) are respectively 100, 80 and 50;
the evaluation value of the temperature under the rated working condition is calculated according to the following formula:
Figure BDA0003112285500000073
wherein, t0To obtain the initial temperature of the electric device, t1For measuring the temperature, alpha, of the electric power-taking device5The value is 10;
the overall evaluation value of the power-taking device is represented as K ═ K1+K2+K3When K is less than 1.25, the working performance of the dereferencing device is considered to be good, and when K is more than or equal to 1.25, K is more than or equal to 1.25<And when the K is more than or equal to 1.5, the electricity taking device needs to be maintained regularly, and quit the operation.
The embodiments described above are merely illustrative of the embodiments of the present invention, but the scope of the present invention is not limited thereto, and equivalent structures and equivalent flow changes may be made without departing from the spirit of the present invention, and they are within the scope of the present invention.

Claims (9)

1. A performance detection system of a micro-power current electricity taking device for power transmission and transformation equipment comprises a voltage and current measurement module, a temperature detection module, a current control device, a main controller and a weight change sensing module of the electricity taking device; the method is characterized in that:
the main controller adjusts the output current of the primary side of the current control device according to the calibrated rated working current; the voltage and current measuring module is connected with a load under a rated working condition and is used for detecting the voltage and the output current value of the output end;
the temperature detection module measures the temperature value of the micropower current electricity taking device;
the weight change sensing module of the electricity taking device senses the weight value change condition of the electricity taking device in real time;
the main controller calculates the real-time power taking power value of the power taking device based on the output end voltage and the output current value detected by the voltage and current measuring module.
2. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 1, wherein:
the power taking device performance detection system further comprises a liquid crystal display module, and the controller issues real-time power taking power data, temperature rise data and weight value to the liquid crystal display module to display related detection results in real time.
3. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 2, wherein:
the method comprises the steps that a real-time power-taking minimum required value, a temperature rise maximum threshold value and a weight change threshold value are arranged in a main controller, and when the power-taking power is lower than a set power-taking minimum required value or the temperature rise exceeds a set temperature rise maximum threshold value or the weight change value is larger than a set weight change threshold value, a liquid crystal display module displays relevant numerical values in a flashing mode to give an alarm.
4. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment as claimed in claim 1 or 3, wherein:
the voltage and current measuring module is installed on a test loop with controllable current, the secondary side of the power taking device is connected with the input end of the rectification voltage regulating device, the output end of the rectification voltage regulating device is connected with the test load resistor, and the output voltage and the output current value are detected at the output end of the rectification voltage regulating device.
5. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 4, wherein:
the output voltage of the rectification voltage-regulating device is set to be 3V, and the load resistor for testing is selected to be 2k omega.
6. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 4, wherein:
the temperature detection module adopts a digital temperature sensor to measure the temperature change condition and the environmental temperature value of the power taking device during work and transmits the temperature change condition and the environmental temperature value to the main controller by adopting simplex communication.
7. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 1 or 6, wherein:
the power taking device weight change sensing module comprises a comparison power taking device which is the same as the current power taking device to be detected in type and initial weight, the comparison power taking device is hung at a position near the current power taking device to be detected through a tension sensor or hung on a different phase line with the primary side of the current power taking device to be detected in different sequence through the tension sensor, the current voltage which is the same as that of the current power taking device to be detected is applied to a coil of the comparison power taking device, and the tension sensor uploads a tension measured value to a main controller in real time through wireless communication to serve as a weight measured value of the current power taking device to be detected.
8. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 7, wherein:
the real-time electricity taking power is calculated according to the following formula:
Pshi＝0.2P-40ms+0.3P-20ms+0.5P0；
the temperature rise is calculated by the following formula:
Figure FDA0003112285490000021
the weight change value is calculated as follows:
Gbianhua＝Flali-Gchushi；
when any one of the following conditions is met, the main controller controls the liquid crystal display module to display related numerical values in a flashing mode:
Figure FDA0003112285490000022
wherein, PshiFor real-time power supply of the calculation, P-40msFor a power value, P, calculated from the output voltage and output current values collected 40ms before the current time-20msFor a power value, P, calculated from the output voltage and output current values taken 20ms ago at the present moment0The power value is calculated according to the output voltage and the output current value acquired at the current moment; t iswenshengCalculated for the current temperature rise, T-60ms、T-40ms、T-20ms、T0The temperature values T of the electricity taking device at the current sampling time and 60ms, 40ms and 20ms before the current sampling time respectivelyhuanjingThe ambient temperature value at the sampling moment; gbianhuaFor the current weight change value, FlaliTension value of tension sensor for suspension contrast electricity-taking device, GchushiComparing the initial weight of the power taking device; pthr-For the set minimum required value of the power taking power, 80 percent of rated power value T is takenthr+Setting the maximum temperature rise threshold value as 0.95 times of rated allowable temperature rise GthrThe weight change threshold is set to be 1.25 times of the original weight of the power-taking device.
9. The system for detecting the performance of the micropower current electricity taking device for the electric transmission and transformation equipment according to claim 7 or 8, wherein:
the running state of the power taking device is also evaluated in the main controller:
calculating the weight parameter evaluation value K of the power taking device according to the following formula1，
Evaluation value of power-taking device
Figure FDA0003112285490000031
α1Value of 10, FlaliTension value of tension sensor for suspension contrast electricity-taking device, GchushiComparing the initial weight of the power taking device;
calculating the estimated value K of the rated working condition output power according to the following formula2：
Figure FDA0003112285490000032
In the formula, three different primary side current magnitudes, namely 20%, 60% and 100% of rated current, are respectively selected from small to large, and the output powers obtained through calculation after measurement are respectively P1、P2、P3The theoretical power-taking power value when the primary side current is 20%, 60% and 100% of the rated current is P10、P20、P30；α2,α3,α4The values of (A) are respectively 100, 80 and 50;
the evaluation value of the temperature under the rated working condition is calculated according to the following formula:
Figure FDA0003112285490000033
wherein, t0To obtain the initial temperature of the electric device, t1For measuring the temperature, alpha, of the electric power-taking device5The value is 10;
the overall evaluation value of the power-taking device is represented as K ═ K1+K2+K3When K is less than 1.25, the working performance of the dereferencing device is considered to be good, and when K is more than or equal to 1.25, K is more than or equal to 1.25<1.5 hours, the electricity-taking device needs to be maintained regularlyAnd (5) repairing, wherein when the K is more than or equal to 1.5, the electricity taking device should quit the operation.
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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110115447A1 (en) * 2009-11-19 2011-05-19 Asustek Computer Inc. Multiphase power supply device and current adjusting method thereof
CN102957219A (en) * 2012-11-09 2013-03-06 山东电力集团公司聊城供电公司 Maximum power tracking system and method of power transmission line induction power supply source
KR101370856B1 (en) * 2012-11-06 2014-03-07 공주대학교 산학협력단 Photovoltaic maximum power point tracking method to prevent overload by environmental and system thereof
CN203589825U (en) * 2013-11-22 2014-05-07 南京信息工程大学 Supercapacitor based inductive energy taking power supply device of high voltage measuring system
CN104076223A (en) * 2014-07-10 2014-10-01 李�禾 Electric transmission line large-current magnetic induction energy-extraction simulation test method and test coil thereof
CN204575720U (en) * 2015-03-18 2015-08-19 国网河南省电力公司濮阳供电公司 Based on the transmission line of electricity current monitoring device that induction electricity getting device is powered
CN106771561A (en) * 2016-12-13 2017-05-31 国家电网公司 High voltage lightning-protection line power taking maximum power point detecting system
CN107991528A (en) * 2017-12-04 2018-05-04 重庆九能控股有限公司 High voltage lightning-protection line takes electric maximum power point detecting system
CN207516533U (en) * 2017-11-08 2018-06-19 华电青岛发电有限公司 A kind of High-accuracy direct current current transformer experimental rig
CN109387782A (en) * 2018-12-14 2019-02-26 国网上海市电力公司 A kind of CT automatic electricity getting switch cubicle detection device and system
CN110793668A (en) * 2019-10-30 2020-02-14 云南恒协科技有限公司 Resonance magnetic coupling induction electricity-taking self-powered wireless temperature measurement system
CN211348414U (en) * 2019-11-29 2020-08-25 北京斯拓高科电气有限公司 Induction electricity-taking electric temperature monitoring device
CN111965413A (en) * 2020-09-03 2020-11-20 南方电网数字电网研究院有限公司 Current measuring method
CN212622879U (en) * 2020-08-21 2021-02-26 珠海黑石电气自动化科技有限公司 Detection apparatus based on CT gets electric coil

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110115447A1 (en) * 2009-11-19 2011-05-19 Asustek Computer Inc. Multiphase power supply device and current adjusting method thereof
KR101370856B1 (en) * 2012-11-06 2014-03-07 공주대학교 산학협력단 Photovoltaic maximum power point tracking method to prevent overload by environmental and system thereof
CN102957219A (en) * 2012-11-09 2013-03-06 山东电力集团公司聊城供电公司 Maximum power tracking system and method of power transmission line induction power supply source
CN203589825U (en) * 2013-11-22 2014-05-07 南京信息工程大学 Supercapacitor based inductive energy taking power supply device of high voltage measuring system
CN104076223A (en) * 2014-07-10 2014-10-01 李�禾 Electric transmission line large-current magnetic induction energy-extraction simulation test method and test coil thereof
CN204575720U (en) * 2015-03-18 2015-08-19 国网河南省电力公司濮阳供电公司 Based on the transmission line of electricity current monitoring device that induction electricity getting device is powered
CN106771561A (en) * 2016-12-13 2017-05-31 国家电网公司 High voltage lightning-protection line power taking maximum power point detecting system
CN207516533U (en) * 2017-11-08 2018-06-19 华电青岛发电有限公司 A kind of High-accuracy direct current current transformer experimental rig
CN107991528A (en) * 2017-12-04 2018-05-04 重庆九能控股有限公司 High voltage lightning-protection line takes electric maximum power point detecting system
CN109387782A (en) * 2018-12-14 2019-02-26 国网上海市电力公司 A kind of CT automatic electricity getting switch cubicle detection device and system
CN110793668A (en) * 2019-10-30 2020-02-14 云南恒协科技有限公司 Resonance magnetic coupling induction electricity-taking self-powered wireless temperature measurement system
CN211348414U (en) * 2019-11-29 2020-08-25 北京斯拓高科电气有限公司 Induction electricity-taking electric temperature monitoring device
CN212622879U (en) * 2020-08-21 2021-02-26 珠海黑石电气自动化科技有限公司 Detection apparatus based on CT gets electric coil
CN111965413A (en) * 2020-09-03 2020-11-20 南方电网数字电网研究院有限公司 Current measuring method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张明河: "感应取能供电在输变电线路监测中应用研究", 《电气应用》 *

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