CN115050233A - Intelligent transformer substation operation simulation system for training based on real entity equipment - Google Patents
Intelligent transformer substation operation simulation system for training based on real entity equipment Download PDFInfo
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- 238000004088 simulation Methods 0.000 title claims abstract description 112
- 238000012549 training Methods 0.000 title claims abstract description 24
- 238000004458 analytical method Methods 0.000 claims abstract description 21
- 230000002159 abnormal effect Effects 0.000 claims abstract description 14
- 230000001052 transient effect Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 9
- 229910052573 porcelain Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000002845 discoloration Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 4
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- 238000007599 discharging Methods 0.000 claims description 3
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- 239000012212 insulator Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
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Abstract
The invention discloses a real entity equipment-based intelligent transformer substation operation simulation system for training, which comprises an operation simulation control module, an electromagnetic transient analysis module, a simulation logic analysis module and an entity simulation module, is used for transforming a primary device body and a secondary device body of a real intelligent transformer substation, and has appearance and arrangement mode completely consistent with field devices. Under an uncharged safe operation scene, a dynamic high-simulation operation mode is adopted, a power load tide analysis algorithm is constructed on the basis of a digital physical hybrid simulation module, the complex physical phenomenon operation simulation of primary equipment of the intelligent substation is formed, and a high-fidelity environment is provided for simulation training of substation personnel. The invention maximally simulates the real environment of a production field, so that training personnel can operate in an 'on-the-spot' manner, and the capability of the power transformation operation and maintenance personnel for rapidly and accurately judging and processing abnormal working states and accidents is effectively improved.
Description
Technical Field
The invention relates to an intelligent transformer substation operation simulation system for training, in particular to an intelligent transformer substation operation simulation system for training based on real entity equipment.
Background
The power transformation operation and maintenance is one of the important major in the power industry, the power grid is rapidly expanded, and higher requirements are provided for safe and reliable operation of the power grid. Social and political influences possibly caused by power grid accidents are more and more prominent, so that the capability of power transformation operation and maintenance personnel for quickly and accurately judging and handling abnormal working states and accidents is urgently needed to be improved, the occurrence of misoperation accidents caused by various accidents of a transformer substation, particularly human reasons, is avoided, and the technical level and the management level of the power transformation operation and maintenance personnel are improved.
At present, the main simulation training form of the existing transformer personnel is software simulation, and the problems that a simulation system has a large difference with actual equipment and partial abnormity and faults cannot be reasonably simulated exist.
CN112489513A discloses a system and a method for virtual training of equipment in the power transformation industry, which constructs a virtual operation environment and virtual operation equipment through a virtual reality simulation training system, and designs simulated operation faults. The method specifically comprises the steps of establishing a three-dimensional model database of the transformer substation, forming virtual training software of equipment in the transformer industry, installing the software to a training terminal host, combining the software with a virtual reality helmet and an operating handle to form a virtual training system, and training by using the training terminal host, the virtual reality helmet and the operating handle.
CN112906225A discloses a transformer substation virtual reality simulation training system, which comprises a reality browsing module and a transformer substation information module. The real scene browsing module is embedded with a transformer substation navigation unit, the transformer substation navigation unit is linked with a virtual transformer substation simulation unit, the virtual transformer substation simulation unit displays a transformer substation scene and transformer substation equipment, the transformer substation scene is linked with a coordinate map, a scene coordinate point is arranged on the coordinate map, different transformer substation scenes in the transformer substation are switched by clicking the scene coordinate point, and the transformer substation equipment is linked with an information annotation unit.
Disclosure of Invention
The invention provides an intelligent transformer substation operation simulation system for training based on real entity equipment, which is transformed based on real intelligent transformer substation primary and secondary equipment bodies, has appearance and arrangement mode completely consistent with field equipment, performs high-fidelity actual simulation on normal operation, abnormity and faults of the intelligent transformer substation, has more sense of reality and sense of space in the training process, and solves the problems that the simulation system has larger difference with the actual equipment and partial abnormity and faults can not be reasonably set in the current simulation training.
The invention adopts the following technical scheme for solving the technical problems:
the utility model provides a training is with wisdom transformer substation operation simulation system based on real entity equipment, this system includes operation simulation control module, electromagnetism transient state analysis module, simulation logic analysis module, entity simulation module:
under the condition that real substation entity equipment does not have high voltage, the simulation control module is operated to realize the functions of fault triggering, starting, stopping and resetting control, realize the real-time sampling of temperature and humidity data, and monitor the real operation state and position of the entity equipment in the simulation on line; the electromagnetic transient analysis module provides real-time simulated power flow data; the simulation logic analysis module receives fault triggering, starting, stopping and resetting control signals and real-time temperature and humidity data sent by the operation simulation control module, receives simulated power flow data of the electromagnetic transient analysis module, calculates temperature values, audio file numbers and volume levels, instrument pointer readings, element color change degrees, gas and liquid leakage degrees, partial discharge degrees, porcelain bottle crack degrees, electrified switching-on and switching-off signals and electrified states of all points of the entity equipment at corresponding positions, and sends the calculated values to the entity simulation module to execute hardware output; the entity simulation module executes corresponding hardware output according to the output of the analog logic analysis module, simulates and simulates the phenomenon of entity equipment, and sends the real running state and position of the entity equipment to the running simulation control module.
Further, the simulated power flow data includes voltage, current, power, and breaker and knife status.
Further, the entity simulation module comprises:
the temperature control and simulation unit is used for simulating the control of heating and temperature rise of physical equipment of a main transformer oil temperature, a main transformer sleeve, neutral point grounding, a switch contact position, a cable, a capacitor and a reactor, and simulating output data of a sampling sensor;
the normal abnormal sound simulation unit is used for simulating the operation sound of equipment such as a main transformer, a voltage transformer, a current transformer, a grounding transformer, an arc suppression coil, a capacitor, a reactor and the like under the conditions of no electricity, electrification and abnormity, and simulating the action sound of switching equipment;
the equipment data instrument pointer simulation unit is used for simulating the indexes of a main transformer conservator, an oil level, a gear, a temperature and a leakage current meter, and simulating the indexes of a switch device SF6 and a lightning arrester meter;
the device gear position contact simulation unit is used for simulating the output of contacts of main transformer oil level, pressure alarm, gas alarm, normal temperature and abnormal output;
the element discoloration simulation unit is used for simulating the main transformer respirator silica gel discoloration phenomenon;
the liquid and gas leakage simulation unit is used for simulating main transformer body oil leakage, a respirator and switch equipment SF6 gas leakage;
the partial discharge state simulation and indication unit is used for simulating partial discharge fault phenomena inside the switch equipment, at the positions of a sleeve and the like;
the element monomer defect fault simulation unit is used for simulating main transformer porcelain bottle cracks, capacitor porcelain bottle cracks and high-voltage fuse fusing faults of voltage transformer equipment;
the open element operation photoelectric effect simulation unit is used for simulating the electrified switching-on/off arc-drawing and discharging photoelectric effects of the disconnecting link switching equipment;
and the high-voltage electroscope simulation unit is used for simulating the real electroscope operation.
Furthermore, the temperature control and simulation unit comprises heating sources and a control cabinet which are arranged in different areas, the entity equipment is used as a bearing platform for heating faults, and the state of the heating sources is controlled, regulated and monitored through the control cabinet.
Further, the calculation model of the main transformer oil temperature is as follows:
ΔT＝T(k)-T a (k+1)
ΔT a (k+1)＝T a (k+1)-T a (k)
in the formula, P Loss of power The method comprises the steps that the loss power of a transformer under current time tide data is represented, lambda is a refrigeration coefficient, A' is a parameter related to the oil property of the transformer, T is calculation time, T (k), T (k +1) are oil temperature at the time k and the time k +1, and T is a (k)、T a And (k +1) represents the ambient temperature at the time k and the time k + 1.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
(1) the intelligent transformer substation operation simulation system for training based on real entity equipment provides a physically similar transformer substation working platform and operation environment for a learner, is provided with high-fidelity sound, light and electric effects, solves the difference of visual effects between the existing simulation system and actual equipment, maximally simulates the real environment of a production site, enables a trainee to operate in an 'on-the-spot' manner, scores the operation of the trainee, and effectively improves the capability of the transformer operation and maintenance personnel to quickly and accurately judge and process abnormal working states and accidents;
(2) the contents which are not easy to realize in part training, such as actual operations of electricity testing and grounding, transformer silica gel replacement, live detection and the like, and abnormal conditions of equipment abnormal heating, equipment abnormal sound, oil leakage and the like can be truly restored under the system.
Drawings
FIG. 1 is a diagram of an operation simulation system architecture of an intelligent substation for training based on real physical equipment according to the present invention;
fig. 2 is a main transformer oil temperature simulation logic diagram in the simulation logic analysis module according to the present invention.
Detailed Description
As shown in fig. 1, the intelligent substation operation simulation system for training based on real physical equipment is modified for real intelligent substation primary and secondary equipment bodies, and has appearance and arrangement mode completely consistent with field equipment. Under an uncharged safe operation scene, a dynamic high-simulation operation mode is adopted, and a power load flow analysis algorithm is constructed on the basis of a digital physical hybrid simulation module to form primary equipment complex physical phenomenon operation simulation. The real-time response of the effects of entity temperature simulation, sound simulation, instrument pointer simulation, liquid level height simulation, color change simulation, partial discharge phenomenon simulation, high-voltage electroscope simulation and the like under normal, abnormal and fault operation conditions is realized.
The system comprises:
the simulation control module 1 is operated to realize the system fault triggering and starting, stopping and resetting control functions; real-time sampling of temperature and humidity data is realized, and the temperature and humidity data are sent to the analog logic analysis module 3; and monitoring the real running state and position signals of the equipment of the entity simulation module 4 on line.
And the electromagnetic transient analysis module 2 provides real-time simulated power flow data including voltage, current, power and breaker and disconnecting link states based on electromagnetic transient calculation.
The analog logic analysis module 3 receives the fault trigger signal, the start, stop and reset control signal and the real-time temperature and humidity environmental data of the operation simulation control module 1 through a self-determined private protocol, and receives electromagnetic transient analysisThe analog power flow data of the module 2 is analyzed and calculated to obtain a temperature value, an audio file number and a volume level of a corresponding position of the entity equipment, an instrument pointer indication number, an element color change degree, a gas liquid leakage degree, a partial discharge degree, a porcelain insulator crack degree, an electrified on-off brake signal and an electrified state of each point, and then the temperature value, the audio file number and the volume level are sent to the entity simulation module 4 to execute hardware output. Taking the main transformer oil temperature model as an example, as shown in fig. 2, the previous time oil temperature T (k) and the previous time environmental temperature T are inputted a (k) Ambient temperature T at the present moment a (k +1) and phase A current I at 220KV side immediately before A (k) In that respect Firstly, judging the range of the oil temperature T (k) at the previous moment, wherein the oil temperature T (k) at the current moment is more than 0 ℃ and less than 50 ℃, selecting the refrigeration coefficient lambda as A, the oil temperature T (k) at the current moment is more than 50 ℃ and less than 60 ℃, selecting the refrigeration coefficient lambda as B, and the oil temperature T (k) at the current moment is more than 60 ℃, and selecting the refrigeration coefficient lambda as C. Then, the oil temperature T (k +1) at the present time is calculated by the formula in the figure. In the formula, P Loss of power The method comprises the steps that the transformer loss power under current moment tidal current data is obtained, lambda is a refrigeration coefficient, A' is a parameter related to the oil property of the transformer, T is calculation time, delta T is the temperature difference between the oil temperature at the previous moment and the environment temperature at the current moment, and delta T is a (k +1) is the ambient temperature change amount. And finally, repeating the process again at the next moment to obtain the oil temperature at the next moment, and circularly repeating the process to obtain the oil temperature at each moment. Wherein A, B, C is a set threshold, and A<B<C。
The entity simulation module 4 executes corresponding hardware output according to the input of the analog logic analysis module 3 to simulate the phenomenon of entity equipment; taking the main transformer oil temperature as an example, the input oil temperature T (k +1) of the analog logic analysis module 3 is received, and the heating source for controlling the main transformer oil temperature position is heated to the oil temperature T (k + 1).
The entity simulation module comprises: the device comprises a temperature control and simulation unit, a normal abnormal sound simulation unit, an equipment data instrument pointer simulation unit, an element color change simulation unit, a liquid and gas leakage simulation unit, a partial discharge state simulation and indication unit, an element single body defect fault simulation unit, an open element operation photoelectric effect simulation unit and a high-voltage electroscope simulation unit.
The temperature control and simulation unit is used for simulating the heating and temperature rise control of main transformer oil temperature, main transformer bushings, neutral point grounding, switch contact positions, cables, capacitors and reactor physical equipment, and simulating the output data of the sampling sensor; the system consists of simulation control software, heating sources arranged in different areas and a control cabinet, wherein the entity equipment is used as a bearing platform for heating faults, the heating sources are arranged in the different areas, and the control cabinet is mainly used for controlling, adjusting and monitoring the state and display of the heating sources. Real-time data such as control state parameters, temperature state parameters and the like are transmitted back to the simulation control software through the optical fiber, and the state and the temperature control of the on-site heating source are synchronously displayed in real time. A plurality of control consoles can be configured according to different scenes, and local heating faults of different devices can be controlled in an analog mode.
The normal abnormal sound simulation unit is used for simulating the operation sound of equipment such as a main transformer, a voltage transformer, a current transformer, a grounding transformer, an arc suppression coil, a capacitor, a reactor and the like under the conditions of no electricity, electrification and abnormity, and simulating the action sound of switching equipment; the simulation control software is mainly used for simulating sounds of normal operation, abnormity and faults, and audio simulation signals are accessed to the high-definition audio module after being amplified by the digital power amplifier to simulate normal abnormal sounds of different scenes. A plurality of digital power amplifiers and audio equipment can be configured according to different scenes.
The equipment data instrument pointer simulation unit is used for simulating main transformer oil conservator, oil level, gear, temperature and leakage current meter indexes, and simulating switch equipment SF6 and lightning arrester meter indexes. The pointer motor is controlled by data and detection signals sent by the upper computer to drive the pointer to point to the position to change, the index change of the pointer is simulated, and the data transmission mode is wireless communication.
The element discoloration simulation unit is used for simulating the silica gel discoloration phenomenon of the main transformer respirator. The data and the detection signal sent by the upper computer control the electric control color changing element to simulate the color change of the silica gel.
The liquid and gas leakage simulation unit is used for simulating main transformer body oil leakage, a respirator and switch equipment SF6 gas leakage;
and the partial discharge state simulation and indication unit is used for simulating partial discharge fault phenomena in the interior of the analog switch equipment, the sleeve and the like. The input voltage adopts a program-controlled adjustable direct-current power supply, the pulse discharge intensity is adjusted by controlling the input voltage of the discharge module, a plurality of discharge modules at different positions can be controlled to discharge simultaneously, and the discharge position and degree can be detected by the partial discharge tester.
And the element monomer defect fault simulation unit is used for simulating main transformer porcelain bottle cracks, capacitor porcelain bottle cracks and high-voltage fuse fusing faults of voltage transformer equipment.
The open element operation photoelectric effect simulation unit is used for simulating the electrified switching-on/off arc-drawing and discharging photoelectric effects of the disconnecting link switching equipment.
And the high-voltage electroscope simulation unit is used for simulating the real electroscope operation. The system consists of a battery charging management circuit, a power supply circuit, a wireless communication circuit, an attitude sensor circuit and an audible and visual alarm circuit, and the simulated electroscope can simulate real electricity testing operation and method steps and send an electricity testing result to the system through internal low-power-consumption wireless communication.
It should be noted that the above description of the embodiments is only for the purpose of assisting understanding of the method of the present application and the core idea thereof, and that those skilled in the art can make several improvements and modifications to the present application without departing from the principle of the present application, and these improvements and modifications are also within the protection scope of the claims of the present application.
Claims (5)
1. The utility model provides a training is with wisdom transformer substation operation simulation system based on real entity equipment which characterized in that, this system includes operation simulation control module, electromagnetism transient analysis module, analog logic analysis module, entity simulation module:
under the condition that real substation entity equipment does not have high voltage, the simulation control module is operated to realize the functions of fault triggering, starting, stopping and resetting control, realize the real-time sampling of temperature and humidity data, and monitor the real operation state and position of the entity equipment in the simulation on line; the electromagnetic transient analysis module provides real-time simulated power flow data; the simulation logic analysis module receives fault triggering, starting, stopping and resetting control signals and real-time temperature and humidity data sent by the operation simulation control module, receives simulated power flow data of the electromagnetic transient analysis module, calculates temperature values, audio file numbers and volume levels, instrument pointer indication numbers, element color change degrees, gas and liquid leakage degrees, partial discharge degrees, porcelain insulator crack degrees, electrified switching-on and switching-off signals and electrified states of all points at corresponding positions of the entity equipment, and sends the calculated values, the audio file numbers and the volume levels, the instrument pointer indication numbers, the element color change degrees, the electrified switching-on and switching-off signals and the electrified states of all points to the entity simulation module to execute hardware output; the entity simulation module executes corresponding hardware output according to the output of the analog logic analysis module, simulates and simulates the phenomenon of entity equipment, and sends the real running state and position of the entity equipment to the running simulation control module.
2. The system of claim 1, wherein the simulated power flow data includes voltage, current, power, and breaker and switch status.
3. The intelligent substation operation simulation system for training based on real entity equipment as claimed in claim 1, wherein the entity simulation module comprises:
the temperature control and simulation unit is used for simulating the control of heating and temperature rise of physical equipment of a main transformer oil temperature, a main transformer sleeve, neutral point grounding, a switch contact position, a cable, a capacitor and a reactor, and simulating output data of a sampling sensor;
the normal abnormal sound simulation unit is used for simulating the operation sound of equipment such as a main transformer, a voltage transformer, a current transformer, a grounding transformer, an arc suppression coil, a capacitor, a reactor and the like under the conditions of no electricity, electrification and abnormity, and simulating the action sound of switching equipment;
the equipment data instrument pointer simulation unit is used for simulating the indexes of a main transformer conservator, an oil level, a gear, a temperature and a leakage current meter, and simulating the indexes of a switch device SF6 and a lightning arrester meter;
the device gear position contact simulation unit is used for simulating the output of contacts of main transformer oil level, pressure alarm, gas alarm, normal temperature and abnormal output;
the element discoloration simulation unit is used for simulating the silica gel discoloration phenomenon of the main transformer respirator;
the liquid and gas leakage simulation unit is used for simulating main transformer body oil leakage, a respirator and switch equipment SF6 gas leakage;
the partial discharge state simulation and indication unit is used for simulating partial discharge fault phenomena inside the switch equipment, at the positions of a sleeve and the like;
the element monomer defect fault simulation unit is used for simulating main transformer porcelain bottle cracks, capacitor porcelain bottle cracks and high-voltage fuse fusing faults of voltage transformer equipment;
the open element operation photoelectric effect simulation unit is used for simulating the electrified switching-on/off arc-drawing and discharging photoelectric effects of the disconnecting link switching equipment;
and the high-voltage electroscope simulation unit is used for simulating the real electroscope operation.
4. The system of claim 3, wherein the temperature control and simulation unit comprises a heating source and a control cabinet which are arranged in different areas, the physical equipment is used as a bearing platform for heating faults, and the state of the heating source is controlled, adjusted and monitored through the control cabinet.
5. The system for simulating the operation of the intelligent transformer substation for training based on the real physical equipment as claimed in claim 3, wherein the calculation model of the oil temperature of the main transformer is as follows:
ΔT＝T(k)-T a (k+1)
ΔT a (k+1)＝T a (k+1)-T a (k)
in the formula, P Loss of power The power loss of the transformer under the current time tide data is lambda, the refrigeration coefficient is lambda, A' is a parameter related to the oil property of the transformer, T is calculation time, T (k), T (k +1) are oil temperature at the time k and the time k +1, and T is a (k)、T a And (k +1) represents the ambient temperature at the time k and the time k + 1.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103680238A (en) * | 2013-11-04 | 2014-03-26 | 国家电网公司 | Intelligent transformer station mixing simulation training system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103680238A (en) * | 2013-11-04 | 2014-03-26 | 国家电网公司 | Intelligent transformer station mixing simulation training system |
Non-Patent Citations (4)
| Title |
|---|
| 卢艳;黄云龙;: "变电站实训***的设计与实现", 中国电力教育, no. 23, pages 149 - 151 * |
| 李田;刘旭东;: "数模混合仿真技术在继电保护培训***中的应用", 中小企业管理与科技(上旬刊), no. 12, pages 166 * |
| 肖京园;刘文定;: "变电站数字物理混合实时仿真培训***初探", 中国高新技术企业, no. 07, pages 15 - 17 * |
| 郭伟;: "66kV数字物理混合仿真培训变电站的开发", 吉林省教育学院学报(上旬), no. 08, pages 152 - 154 * |
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