CN115639380B - Power simulator and simulation method - Google Patents
Power simulator and simulation method Download PDFInfo
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- CN115639380B CN115639380B CN202211659771.2A CN202211659771A CN115639380B CN 115639380 B CN115639380 B CN 115639380B CN 202211659771 A CN202211659771 A CN 202211659771A CN 115639380 B CN115639380 B CN 115639380B
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Abstract
The invention discloses a power simulator and a simulation method, wherein the power simulator comprises an outer shell, an acquisition cavity and a resistance cavity are arranged in the outer shell, an acquisition module and a display module are arranged in the acquisition cavity, an output interface, an input interface and an input switch are arranged on the acquisition module, and display screens of the output interface, the input switch and the display module are positioned on the upper surface of the outer shell. The simulation method comprises the following steps: the power simulator is connected with the external equipment, the power load is selected, and the power simulator collects the operating voltage and current for evaluation, so that the safe operation of the power simulator and the external equipment is ensured. The invention can simulate the working state of the temperature adjusting equipment, meet the requirements of the temperature adjusting equipment on debugging, testing and troubleshooting, shorten the debugging and testing period, ensure the debugging quality and eliminate the product performance index deviation caused by human factors. The test simulation device has the test function independently and can be matched with other existing test devices and standard instruments for use.
Description
Technical Field
The invention relates to the technical field of electrical simulation, in particular to a power simulator and a simulation method.
Background
The debugging of the whole system is required to be completed after all the subsystem equipment is completely sleeved and assembled, and then the testing and the verification can be carried out on whether each subsystem reaches the technical index or not. Therefore, the time for joint debugging of the whole machine and confirmation of the subsystem states is prolonged, and once the state of a certain subsystem is not correct or the technical requirements of the whole machine are not changed and the requirements of the subsystems are not updated in time, the research and development period can be further prolonged. In order to determine whether the technical state of each subsystem and the technical state of the whole system meet the final technical requirements in advance, the test simulation equipment of the type needs to be developed to simulate and test the technical state condition of each subsystem.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the power simulator and the simulation method which have an independent test function and can be matched with other conventional test equipment and standard instruments for use.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the power simulator comprises an outer shell, wherein an acquisition cavity and a resistance cavity are arranged in the outer shell, an acquisition module and a display module are arranged in the acquisition cavity, an output interface, an input interface and an input switch are arranged on the acquisition module, and the output interface, the input switch and a display screen of the display module are positioned on the upper surface of the outer shell;
a plurality of power resistors with different resistance values are arranged in the resistor cavity, the power resistors are uniformly distributed in the resistor cavity, the power resistors are arranged on an L-shaped mounting plate, and the mounting plate is arranged at the bottom of the outer shell; the display module and the power resistors are electrically connected with the acquisition module;
the acquisition module is used for simulating and sending different power signals, and detecting and monitoring whether the functions and the performance of the external equipment meet the requirements or not; the power resistors are used for simulating different working power changes; the display module is used for displaying different power change conditions, power health management, control and switching different power selections;
the output interface transmits different power signals to the tested external equipment, and the input interface is in butt joint with 220V mains supply to provide power for the whole power simulator.
Further, evenly be provided with the mounting panel of a plurality of L shapes in the resistance chamber, the horizontal plate of mounting panel passes through the fix with screw on the bottom surface of shell body, and the even parallel distribution of a plurality of mounting panels, a plurality of power resistor install on the vertical face of mounting panel.
Furthermore, the power resistor is arranged in the heat insulation box, the heat insulation box is a hollow prismatic table box body, and two ends of the heat insulation box are fixed on the mounting plate through screws.
Furthermore, a plurality of heat dissipation windows are uniformly arranged on the side face of the outer shell, a heat dissipation fan is installed on each heat dissipation window, and the heat dissipation fan is installed on the inner side of the outer shell.
Furthermore, the bottom surface of the outer shell is provided with a heat dissipation structure which is a plurality of heat dissipation strips arranged on the bottom surface of the outer shell, and the heat dissipation strips are uniformly distributed in parallel.
Further, handles are arranged on two sides of the upper surface of the outer shell, and two ends of each handle are hinged to the hinge seats arranged on the outer shell.
Further, a plurality of power resistor include definite value resistance R1 and definite value resistance R2, definite value resistance R2 and switch K2 are established ties, definite value resistance R2, switch K2 and switch K1 are parallelly connected, switch K1, switch K2 all is connected with definite value resistance R1, definite value resistance R1 connects the A looks of input interface, definite value resistance R2 and switch K1 all are connected with acquisition resistance R3's one end, acquisition resistance R3's the other end is connected with input interface's central line N, acquisition resistance R3 is parallelly connected with collection module.
Furthermore, the collection cavity and the resistance cavity are separated by a heat insulation plate, a clamping groove is formed in the side wall of the outer shell, and the heat insulation plate is inserted into the clamping groove.
The method for power simulation by adopting the power simulator comprises the following steps:
s1: electrifying the power simulator, and accessing the external equipment into the power simulator by using a test cable;
s2: selecting a power load simulation function on a display screen of a display module of the power simulator, and selecting a switched-on power load P according to test input power required by external equipment Load(s) ；
S3: power simulator delivers power load P to external equipment Load(s) The external device being loaded by power P Load(s) Running at intervals during the running processCollecting current I and voltage V of primary external equipment by a timing t power simulator;
s4: the current I is compared with a current threshold value I Threshold value Making a difference to obtain a current fluctuation value I Wave motion =|I-I Threshold value I, the current fluctuation value I Wave motion With a current fluctuation threshold I Fluctuating threshold value Comparing;
the voltage V is compared with a voltage threshold value V Threshold value Making difference to obtain voltage fluctuation value V Wave motion =|V-V Threshold value I.e. the value of the voltage fluctuation V Wave motion And a voltage fluctuation threshold V Fluctuating threshold Carrying out comparison;
if I Wave motion ＞I Fluctuating threshold And V is Wave motion ≤V Fluctuating threshold value Then, it is judged that the power simulator delivers the power load P Load(s) When the external equipment runs, the current fluctuation is large; collecting the actual power P of the external equipment at the moment Practice of Will supply the actual power P In fact And the power load P Load(s) Making a comparison if P Practice of ≠P Load(s) Then adjusting the transmission power load of the power simulator to P Practice of =P Load(s) Returning to the step S3; if P Practice of ＝P Load(s) Judging that the external equipment has a fault;
if I Wave motion ≤I Fluctuating threshold value And V is Wave motion ＞V Fluctuating threshold Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the voltage fluctuation is large; collecting the actual power P of the external equipment at the moment In fact Will supply the actual power P Practice of And the power load P Load(s) Making a comparison if P In fact ≠P Load(s) Then adjust the delivered power load of the power simulator to P Practice of =P Load(s) Returning to the step S3; if P Practice of ＝P Load(s) If yes, judging that the external equipment has a fault;
if I Wave motion ＞I Fluctuating threshold And V is Wave motion ＞V Fluctuating threshold value Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment is operated, the current and the voltage values are bothThe fluctuation is large; judging that the power simulator has a fault, checking the power simulator, and returning to the step S3;
if I Wave motion ≤I Fluctuating threshold And V is Wave motion ≤V Fluctuating threshold value Then, it is judged that the power simulator delivers the power load P Load(s) When the external equipment runs, the external equipment and the power simulator both run normally, and the step S3 is returned;
s5: looping steps S3-S4, counting power P of the power simulator Load(s) The time T for transmitting the load to the external equipment, T = N.t, N is the collection times of the current I and the voltage V;
s6: comparing the time T with a time threshold T Threshold value Performing difference making to obtain a time fluctuation difference value T Difference value =T-T Threshold value Difference value T of time fluctuation Difference value And time allowance threshold T Allowable threshold value And (3) comparison: if T Difference value ＞T Allowable threshold value If the power supply of the power simulator is turned off, the power simulator carries out self-protection, and if T is detected Difference value ≤T Allowable threshold value And then, the heat dissipation fan is turned on to dissipate heat inside the power simulator.
The beneficial effects of the invention are as follows: the invention can simulate the working state of the temperature adjusting equipment, meet the requirements of the temperature adjusting equipment on debugging, testing and troubleshooting, shorten the debugging and testing period, ensure the debugging quality and eliminate the product performance index deviation caused by human factors. The test simulation device has the test function independently and can be used with other existing test devices and standard instruments.
The invention simulates and sends corresponding power signals, and after the power simulator is connected to the leakage monitoring alarm device, the power simulator is used for simulating and sending working condition power signals such as non-leakage state, gas 1 leakage state, gas 2 leakage state and the like, so as to check whether the function and the performance of the leakage monitoring alarm device meet the requirements or not;
the invention can simulate the working state of the temperature adjusting equipment, can set and select a plurality of powers to simulate, automatically correct the output power, simultaneously monitor the self faults and the running state of the external equipment and the power simulator in real time, simulate the heating power and monitor the running heating condition, realize the self-protection function, provide a power signal of more than 2200W for the test equipment, monitor the state and parameters of the test equipment according to the requirements of users, and manage and output data.
Drawings
Fig. 1 is a perspective view of a power simulator.
Fig. 2 is an internal structural diagram of the power simulator.
Fig. 3 is an electrical schematic diagram of a power simulator.
The heat radiation device comprises a shell 1, an outer shell 2, a heat radiation window 3, a heat radiation structure 4, a hinged seat 5, a lifting handle 6, a display screen 7, an upper surface 8, a display module 9, an input switch 10, an input interface 11, an output interface 12, a heat radiation fan 13, a mounting plate 14, a heat insulation box 15, a collection module 16 and a heat insulation plate.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined by the appended claims, and all changes that can be made by the invention using the inventive concept are intended to be protected.
As shown in fig. 1 to 3, the power simulator of the present scheme includes an outer casing 1, an acquisition cavity and a resistance cavity are provided in the outer casing 1, an acquisition module 15 and a display module 8 are provided in the acquisition cavity, an output interface 11, an input interface 10 and an input switch 9 are provided on the acquisition module 15, and the display screen 6 of the output interface 11, the input interface 10, the input switch 9 and the display module 8 is located on the upper surface 7 of the outer casing 1.
A plurality of power resistors with different resistance values are arranged in the resistor cavity, the power resistors are uniformly distributed in the resistor cavity, the power resistors are arranged on an L-shaped mounting plate 13, and the mounting plate 13 is arranged at the bottom of the outer shell 1; the display module 8 and the plurality of power resistors are electrically connected with the acquisition module 15. Through the reasonable resistor of arranging different resistances, the power simulation is convenient to dissipate heat, and the power resistor is convenient to install and replace.
The acquisition module 15 is used for simulating and sending out different power signals, and detecting and monitoring whether the functions and the performances of the external equipment meet the requirements or not; the power resistors are used for simulating different working power changes; the display module 8 is used for displaying different power change conditions, power health management, control and switching different power selections.
The output interface 11 transmits different power signals to the tested external equipment, and the input interface 10 is connected with 220V mains supply in a butt joint mode to provide power for the whole power simulator.
In this embodiment, evenly be provided with the mounting panel 13 of a plurality of L shapes in the resistance cavity, the horizontal plate of mounting panel 13 passes through the fix with screw on the bottom surface of shell body 1, and the even parallel distribution of a plurality of mounting panels 13, a plurality of power resistor install on the vertical face of mounting panel 13. The power resistor is provided in a heat insulating box 14, the heat insulating box 14 is a hollow prismatic table box body, and both ends of the heat insulating box 14 are fixed to the mounting plate 13 by screws.
Evenly be provided with a plurality of radiator windows 2 on the side of shell body 1, all install radiator fan 12 on every radiator window 2, and radiator fan 12 installs in the inboard of shell body 1, adopts the air-cooled mode to dispel inside heat fast. The bottom surface of shell body 1 is provided with heat radiation structure 3, and heat radiation structure 3 is a plurality of heat dissipation strips for setting up in 1 bottom surface of shell body, and a plurality of heat dissipation strips are even parallel distribution, adopt the cold mode of metal conduction to dispel the heat with higher speed simultaneously. The collection cavity and the resistance cavity are separated by a heat insulation plate 16, a clamping groove is formed in the side wall of the outer shell 1, and the heat insulation plate 16 is inserted into the clamping groove.
Both sides of 1 upper surface 7 of shell body all are provided with handle 5, and the both ends of handle 5 articulate on articulated seat 4 that sets up on shell body 1 for get, put in the equipment transportation, avoid direct contact shell body 1 and scald.
In this embodiment, a plurality of power resistor include definite value resistance R1 and definite value resistance R2, definite value resistance R2 and switch K2 establish ties, definite value resistance R2, switch K2 is parallelly connected with switch K1, switch K2 all is connected with definite value resistance R1, definite value resistance R1 connects input interface 10's a looks, definite value resistance R2 and switch K1 all are connected with collection resistance R3's one end, collection resistance R3's the other end is connected with input interface 10's central line N, collection resistance R3 is parallelly connected with collection module 15.
According to the invention, the selection of three-gear power simulation can be carried out through the switch K2 and the switch K1, the switch K1 is closed, the switch K2 is opened, and only the fixed value resistor R1 is accessed; the switch K2 is closed, the switch K1 is opened, and the constant value resistor R1 and the constant value resistor R2 are connected in series; when the switch K1 and the switch K2 are both closed, the constant value resistor R1 and the constant value resistor R2 are connected in parallel.
The method for performing power simulation by using the power simulator in the embodiment comprises the following steps:
s1: electrifying the power simulator, and accessing the external equipment into the power simulator by using the test cable;
s2: selecting a power load simulation function on a display screen of a display module of the power simulator, and selecting a switched-on power load P according to test input power required by external equipment Load(s) ；
S3: power simulator delivers power load P to external device Load(s) The external device being loaded by power P Load(s) The method comprises the following steps of running, wherein a power simulator collects current I and voltage V of external equipment once every a set time t in the running process;
s4: the current I is compared with a current threshold I Threshold value Making a difference to obtain a current fluctuation value I Wave motion =|I-I Threshold value I, the current fluctuation value I Wave motion With a current fluctuation threshold I Fluctuating threshold value Carrying out comparison;
the voltage V is compared with a voltage threshold value V Threshold value Making difference to obtain voltage fluctuation value V Wave motion =|V-V Threshold value I.e. the value of the voltage fluctuation V Wave motion And a voltage fluctuation threshold V Fluctuating threshold value Comparing;
if I Wave motion ＞I Fluctuating threshold value And V is Wave motion ≤V Fluctuating threshold value Then, it is judged that the power simulator delivers the power load P Load(s) When the external equipment runs, the current fluctuation is large; collecting the actual power P of the external equipment at the moment Practice of Will deliver the actual power P Practice of And the power load P Load(s) Making a comparison if P Practice of ≠P Load(s) Then adjust the delivered power load of the power simulator to P Practice of =P Load(s) Returning to the step S3; if P Practice of ＝P Load(s) Judging that the external equipment has a fault;
if I Wave motion ≤I Fluctuating threshold And V is Wave motion ＞V Fluctuating threshold value Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the voltage fluctuation is large; collecting the actual power P of the external equipment at the moment Practice of Will supply the actual power P In fact And the power load P Load(s) Making a comparison if P Practice of ≠P Load(s) Then adjust the delivered power load of the power simulator to P Practice of =P Load(s) Returning to the step S3; if P Practice of ＝P Load(s) If yes, judging that the external equipment has a fault;
if I Wave motion ＞I Fluctuating threshold And V is Wave motion ＞V Fluctuating threshold Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the current and voltage values fluctuate greatly; judging that the power simulator has a fault, checking the power simulator, and returning to the step S3;
if I Wave motion ≤I Fluctuating threshold value And V is Wave motion ≤V Fluctuating threshold Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the external equipment and the power simulator both run normally, and the step S3 is returned;
s5: looping steps S3-S4, counting power P of the power simulator Load(s) The time T for transmitting the load to the external equipment, T = N.t, N is the collection times of the current I and the voltage V;
s6: comparing the time T with a time threshold T Threshold value Performing difference making to obtain a time fluctuation difference value T Difference value =T-T Threshold value Difference value of time fluctuation T Difference value And time allowable threshold T Allowable threshold value And (3) comparison: if T is Difference value ＞T Allowable threshold value If the power supply of the power simulator is turned off, the power simulator carries out self-protection, and if T is detected Difference value ≤T Allowable threshold value And then, the heat dissipation fan is turned on to dissipate heat inside the power simulator.
The invention can simulate the working state of the temperature adjusting equipment, meet the requirements of the temperature adjusting equipment on debugging, testing and troubleshooting, shorten the debugging and testing period, ensure the debugging quality and eliminate the product performance index deviation caused by human factors. The test simulation device has the test function independently and can be matched with other existing test devices and standard instruments for use.
The invention simulates and sends corresponding power signals, and after the power simulator is connected to the leakage monitoring alarm device, the power simulator is used for simulating and sending working condition power signals such as non-leakage state, gas 1 leakage state, gas 2 leakage state and the like, so as to check whether the function and the performance of the leakage monitoring alarm device meet the requirements or not;
the invention can simulate the working state of the temperature adjusting equipment, can set and select a plurality of powers to simulate, automatically correct the output power, simultaneously monitor the self faults and the running state of the external equipment and the power simulator in real time, simulate the heating power and monitor the running heating condition, realize the self-protection function, provide a power signal of more than 2200W for the test equipment, monitor the state and parameters of the test equipment according to the requirements of users, and manage and output data.
Claims (1)
1. A method for power simulation of a power simulator comprises an outer shell, wherein an acquisition cavity and a resistance cavity are arranged in the outer shell, an acquisition module and a display module are arranged in the acquisition cavity, an output interface, an input interface and an input switch are arranged on the acquisition module, and the output interface, the input switch and a display screen of the display module are positioned on the upper surface of the outer shell;
a plurality of power resistors with different resistance values are arranged in the resistor cavity, the power resistors are uniformly distributed in the resistor cavity, the power resistors are arranged on an L-shaped mounting plate, and the mounting plate is arranged at the bottom of the outer shell; the display module and the power resistors are electrically connected with the acquisition module;
the acquisition module is used for simulating and sending different power signals, and detecting and monitoring whether the functions and the performance of the external equipment meet the requirements or not; the power resistors are used for simulating different working power changes; the display module is used for displaying different power change conditions, power health management, control and switching different power selections;
the output interface transmits different power signals to the tested external equipment, and the input interface is in butt joint with 220V mains supply to provide a power supply for the whole power simulator;
a plurality of L-shaped mounting plates are uniformly arranged in the resistor cavity, horizontal plates of the mounting plates are fixed on the bottom surface of the outer shell through screws, the mounting plates are uniformly distributed in parallel, and the power resistors are mounted on the vertical surfaces of the mounting plates;
the power resistor is arranged in a heat insulation box, the heat insulation box is a hollow prismatic table box body, and two ends of the heat insulation box are fixed on the mounting plate through screws;
a plurality of heat dissipation windows are uniformly arranged on the side surface of the outer shell, each heat dissipation window is provided with a heat dissipation fan, and the heat dissipation fans are arranged on the inner side of the outer shell;
the bottom surface of the outer shell is provided with a heat dissipation structure, the heat dissipation structure is a plurality of heat dissipation strips arranged on the bottom surface of the outer shell, and the heat dissipation strips are uniformly distributed in parallel;
handles are arranged on two sides of the upper surface of the outer shell, and two ends of each handle are hinged to a hinge seat arranged on the outer shell;
the power resistors comprise a fixed value resistor R1 and a fixed value resistor R2, the fixed value resistor R2 is connected with a switch K2 in series, the fixed value resistor R2 and the switch K2 are connected with the switch K1 in parallel, the switch K1 and the switch K2 are both connected with the fixed value resistor R1, the fixed value resistor R1 is connected with a phase A of an input interface, the fixed value resistor R2 and the switch K1 are both connected with one end of an acquisition resistor R3, the other end of the acquisition resistor R3 is connected with a central line N of the input interface, and the acquisition resistor R3 is connected with an acquisition module in parallel;
the acquisition cavity and the resistance cavity are separated by a heat insulation plate, a clamping groove is formed in the side wall of the outer shell, and the heat insulation plate is inserted into the clamping groove;
the method is characterized by comprising the following steps:
s1: electrifying the power simulator, and accessing the tested external equipment into the power simulator by using the test cable;
s2: selecting a power load simulation function on a display screen of a display module of the power simulator, and selecting a switched-on power load P according to test input power required by external equipment Load(s) ；
S3: power simulator delivers power load P to external device Load(s) According to the power load P of the external equipment Load(s) The method comprises the following steps that operation is carried out, wherein a power simulator collects current I and voltage V of external equipment once every a set time t in the operation process;
s4: the current I is compared with a current threshold I Threshold value Making a difference to obtain a current fluctuation value I Wave motion =|I-I Threshold value I, the current fluctuation value I Wave motion And a current fluctuation threshold value I Fluctuating threshold value Comparing;
the voltage V is compared with a voltage threshold value V Threshold value Making difference to obtain voltage fluctuation value V Wave motion =|V-V Threshold value I, dividing the voltage fluctuation value V Wave motion And a voltage fluctuation threshold V Fluctuating threshold value Comparing;
if I Wave motion ＞I Fluctuating threshold value And V is Wave motion ≤V Fluctuating threshold Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the current fluctuation is large; collecting the actual power P of the external equipment at the moment Practice of Will supply the actual power P Practice of And the power load P Load(s) Making a comparison if P In fact ≠P Load(s) Then adjusting the transmission power load of the power simulator to P Practice of =P Load(s) Returning to the step S3; if P In fact ＝P Load(s) If yes, judging that the external equipment has a fault;
if I Wave motion ≤I Fluctuating threshold value And V is Wave motion ＞V Fluctuating threshold Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the voltage fluctuation is large; collecting the actual power P of the external equipment at the moment Practice of Will deliver the actual power P Practice of And the power load P Load(s) Making a comparison if P In fact ≠P Load(s) Then adjusting the transmission power load of the power simulator to P Practice of =P Load(s) Returning to the step S3; if P Practice of ＝P Load(s) Judging that the external equipment has a fault;
if I Wave motion ＞I Fluctuating threshold value And V is Wave motion ＞V Fluctuating threshold value Then, the power simulator is judged to transmit the power load P Load(s) When the external equipment runs, the current and voltage values fluctuate greatly; judging that the power simulator has a fault, checking the power simulator, and returning to the step S3;
if I Wave motion ≤I Fluctuating threshold value And V is Wave motion ≤V Fluctuating threshold Then, it is judged that the power simulator delivers the power load P Load(s) When the external equipment runs, the external equipment and the power simulator both run normally, and the step S3 is returned;
s5: looping steps S3-S4, counting power P of the power simulator Load(s) The time T for transmitting the load to the external equipment, T = N.t, N is the collection times of the current I and the voltage V;
s6: comparing the time T with a time threshold T Threshold value Performing difference making to obtain a time fluctuation difference value T Difference value =T-T Threshold value Difference value T of time fluctuation Difference value And time allowance threshold T Allowable threshold value And (3) comparison: if T Difference value ＞T Allowable threshold value If the power supply of the power simulator is turned off, the power simulator carries out self-protection, and if T is detected Difference value ≤T Allowable threshold value And then, the heat dissipation fan is turned on to dissipate heat inside the power simulator.
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|---|---|---|---|---|
| CN115015738A (en) * | 2022-06-21 | 2022-09-06 | 惠州市德赛西威智能交通技术研究院有限公司 | Testing device capable of simulating heating of electronic equipment, testing method and simulation module |
| CN115128419A (en) * | 2022-06-21 | 2022-09-30 | 上海交通大学 | Power electronic short-time overstress test system and method based on working condition simulation |
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