CN211263749U - Analog simulation system - Google Patents
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- CN211263749U CN211263749U CN201921468811.9U CN201921468811U CN211263749U CN 211263749 U CN211263749 U CN 211263749U CN 201921468811 U CN201921468811 U CN 201921468811U CN 211263749 U CN211263749 U CN 211263749U
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Abstract
The application relates to an analog simulation system which comprises a voltage interference device, a load simulation device, a power grid impact current simulation device, a power grid pulse interference simulation device, a power grid harmonic interference device and a control device. The voltage interference device is used for simulating the voltage interference condition of the intelligent ammeter. The load simulation device is used for simulating the load condition of the intelligent electric meter. And the power grid impact current simulation device is used for realizing the simulation of the short-time impact current of the intelligent ammeter. The power grid pulse interference simulation device is used for simulating pulse interference of the intelligent electric meter. The power grid harmonic interference device is used for simulating harmonic interference generated by a nonlinear load of a power grid. The control device is used for controlling the operation of the voltage interference device, the load simulation device, the power grid impact current simulation device, the power grid pulse interference simulation device and the power grid harmonic interference device. The simulation system provided by the application can solve the problem that the traditional method for simulating the running environment of the intelligent electric meter is single in mode.
Description
Technical Field
The present application relates to the field of power systems, and more particularly, to an analog simulation system.
Background
The intelligent electric meter is used as a core component of the intelligent power grid, and plays a non-negligible role in the operation of the intelligent power grid. However, in recent years, the failure rate of the smart electric meter is increasing in the actual operation process, which causes the failure of the smart grid operation and brings much trouble to the maintenance work. Therefore, if the fault of the intelligent electric meter can be found in advance during the operation of the intelligent electric network, unnecessary loss caused by the fault of the intelligent electric meter can be avoided.
At present, in order to know the operating fault problem of the intelligent electric meter in advance, a worker can simulate the operating environment of the intelligent electric meter, and then detect the fault which can occur to the intelligent electric meter so as to adjust or overhaul the intelligent electric meter. However, the traditional method for simulating the operating environment of the smart meter has the problem of single mode.
SUMMERY OF THE UTILITY MODEL
Therefore, a simulation system is needed to be provided for solving the problem that the traditional method for simulating the operating environment of the smart electric meter has a single mode.
An analog simulation system comprising:
the voltage interference device is electrically connected with the intelligent ammeter when in use and is used for simulating the voltage interference condition of the intelligent ammeter; the voltage interference device comprises a single-phase voltage regulator and a control switch, wherein the control switch is used for adjusting the output voltage of the single-phase voltage regulator so as to control the analog voltage of the voltage interference device;
the load simulation device is electrically connected with the intelligent ammeter during use and used for simulating the load condition of the intelligent ammeter, and comprises a load resistor and a load switch, wherein the load switch is used for controlling the access of the load resistor;
the power grid impact current simulation device is electrically connected with the intelligent ammeter when in use and is used for realizing the simulation of the short-time impact current of the intelligent ammeter;
the power grid pulse interference simulation device is electrically connected with the intelligent ammeter when in use and is used for realizing pulse interference of the intelligent ammeter;
the power grid harmonic interference device is electrically connected with the intelligent ammeter when in use and is used for simulating harmonic interference generated by a nonlinear load of a power grid;
the control device is in signal connection with the voltage interference device, the load simulation device, the power grid impact current simulation device, the power grid pulse interference simulation device and the power grid harmonic interference device;
the control device is used for controlling the operation of the voltage interference device, the load simulation device, the power grid impact current simulation device, the power grid pulse interference simulation device and the power grid harmonic interference device.
In one embodiment, the control switches include a first control switch, a second control switch, a third control switch and a fourth control switch, one end of each control switch is connected with the single-phase voltage regulator, and the other end of each control switch is connected with the smart meter;
the first control switch, the second control switch, the third control switch and the fourth control switch are connected in parallel;
the control device is used for controlling the first control switch, the second control switch, the third control switch and the fourth control switch to be switched off.
In one embodiment, the load resistors include a first load resistor, a second load resistor and a third load resistor, and the load switches include a first load switch, a second load switch and a third load switch;
one end of the first load switch is connected with the intelligent electric meter when in use, and the other end of the first load switch is electrically connected with the first load resistor;
one end of the second load switch is connected with the intelligent electric meter when in use, and the other end of the second load switch is electrically connected with the second load resistor;
one end of the third load switch is connected with the intelligent electric meter when in use, and the other end of the third load switch is electrically connected with the third load resistor;
the first load switch, the second load switch, and the third load switch are connected in parallel; the first load resistor, the second load resistor and the third load resistor are connected in parallel;
the control device is used for controlling the first load switch, the second load switch and the third load switch to be switched off.
In one embodiment, the voltage interference apparatus further includes:
the first voltmeter is connected with the primary side of the single-phase voltage regulator in a parallel connection mode and used for detecting the voltage of the primary side of the single-phase voltage regulator;
and the second voltmeter is connected with the secondary side of the single-phase voltage regulator in a parallel connection mode, wherein the secondary side of the single-phase voltage regulator is connected with the first control switch, the second control switch, the third control switch and the fourth control switch.
In one embodiment, the grid inrush current simulation apparatus includes:
one end of the impulse current control switch is connected with the intelligent ammeter when in use;
one end of the tungsten filament lamp is connected with the impulse current control switch;
the impulse current control switch and the tungsten lamp are connected with the second voltmeter in parallel;
the control device is used for controlling the switch-off of the impact current control switch.
In one embodiment, the grid impulse interference simulation apparatus includes:
one end of the pulse interference control switch is connected with the intelligent ammeter when in use;
one end of the single-phase asynchronous motor is connected with the pulse interference control switch;
the pulse interference control switch and the single-phase asynchronous motor are connected with the second voltmeter in a parallel mode;
the control device is used for controlling the pulse interference control switch to be switched off.
In one embodiment, the harmonic interference apparatus for power grid includes:
one end of the harmonic interference control switch is connected with the intelligent ammeter when in use;
one end of the single-phase silicon controlled rectifier is connected with the harmonic interference control switch, and the single-phase silicon controlled rectifier is connected with the harmonic interference control switch;
one end of the ammeter is connected with the other end of the single-phase silicon controlled rectifier;
one end of the resistor is connected with the other end of the ammeter;
the resistor is connected with the second voltmeter in a parallel manner;
the control device is used for controlling the turn-off of the harmonic interference control switch.
In one embodiment, the power grid harmonic interference apparatus further includes:
and the radiator is used for performing heat radiation treatment on the single-phase controllable silicon.
In one embodiment, the method further comprises:
the power supply, the one end that single-phase voltage regulator once inclines with the power electricity is connected, the other end ground connection that single-phase voltage regulator once inclines.
In one embodiment, the method further comprises:
and the meter hanging frame is used for placing the intelligent electric meter when in use.
The application provides an analog simulation system for simulating the running condition of an intelligent electric meter. The simulation system comprises a voltage interference device, a load simulation device, a power grid impact current simulation device, a power grid pulse interference simulation device, a power grid harmonic interference device and a control device. The voltage interference device is used for simulating voltage interference conditions of the intelligent electric meter, such as power grid overvoltage, power frequency undervoltage and the like. The load simulation device is used for simulating the simulation of the condition that the intelligent electric meter is connected with different loads. The power grid impact current simulation device is used for simulating pulse interference suffered by the intelligent electric meter. The power grid harmonic interference device is used for simulating harmonic interference generated by a nonlinear load of a power grid. The control device is used for controlling the operation of the voltage interference device, the load simulation device, the power grid impact current simulation device, the power grid pulse interference simulation device and the power grid harmonic interference device so as to simulate different operation conditions of the intelligent electric meter. The simulation system provided by the application can simulate various conditions in the operation process of the intelligent electric meter, and solves the problem that the traditional method for simulating the operation environment of the intelligent electric meter is single in mode.
Drawings
Fig. 1 is a schematic structural diagram of an analog simulation detection system according to an embodiment of the present application.
Description of reference numerals:
Single-phase voltage regulator 110
Power grid impact current simulation device 300
Rush current control switch 310
Power grid pulse interference simulation device 400
Impulse interference control switch 410
Single-phase asynchronous motor 420
Power grid harmonic interference device 500
Harmonic interference control switch 510
Single-phase thyristor 520
Heat sink 550
Watch hanging rack 800
Detailed Description
The traditional method for simulating the operating environment of the intelligent electric meter has the problem of single mode, and based on the problem, the application provides a simulation system.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by way of embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the present application provides an analog simulation system 10 for simulating an operation condition of a smart meter 11. The simulation system 10 includes a voltage interference device 100, a load simulation device 200, a grid inrush current simulation device 300, a grid impulse interference simulation device 400, a grid harmonic interference device 500, and a control device 600.
The control device 600 is electrically and signal-connected to the voltage interference device 100, the load simulator 200, the grid inrush current simulator 300, the grid impulse interference simulator 400, and the grid harmonic interference device 500. The control device 600 is used for controlling the operations of the voltage interference device 100, the load simulation device 200, the grid inrush current simulation device 300, the grid impulse interference simulation device 400 and the grid harmonic interference device 500. In one embodiment, the control device 600 is a programmable logic controller.
When in use, the voltage interference device 100 is electrically connected to the smart meter 11 and is used for simulating a voltage interference condition of the smart meter 11. The voltage interference apparatus 100 includes a single-phase voltage regulator 110 and a control switch 120, wherein the control switch 120 is configured to adjust an output voltage of the single-phase voltage regulator 110 to control an analog voltage of the voltage interference apparatus 100. In one embodiment, the analog simulation system 10 further includes a power supply 700. In one embodiment, the single-phase voltage regulator 110 includes a single-phase regulator primary side 111 and a single-phase regulator secondary side 112. One end of the primary side 111 of the single-phase voltage regulator is electrically connected with the power supply 700, and the other end of the primary side 111 of the single-phase voltage regulator is grounded. The control switch 120 is connected to the secondary side 112 of the single-phase voltage regulator, and is configured to control the number of turns of the coil used by the secondary side 112 of the single-phase voltage regulator, so as to control the output voltage of the voltage interference device 100, that is, the analog voltage. The control device 600 may control the turn-off of the control switch 120, so as to control the connection of the single-phase voltage regulator 110.
The voltage interference device 100 is used for realizing power grid overvoltage simulation, power frequency overvoltage and undervoltage simulation and realizing normal power supply. The voltage interference device 100 is further configured to satisfy that a proper margin is left for output power under different use conditions of the grid impact load simulation device 300, the grid impulse interference simulation device 400, and the like used by the entire simulation system 10. Especially, the requirement that enough large output power margin is reserved when the impulse-type loads such as the power grid impulse interference simulation device 400, the power grid harmonic interference device 500 and the like are used is met. In one embodiment, the single-phase voltage regulator 110 is an adjustable transformer with a specification of 220V ac boost power supply, a model number of TDGC2-3KW, a digital display of 0 to 500V, and a power of 3000W.
The load simulation device 200 is electrically connected to the smart meter 11 during use, and is configured to simulate a load condition of the smart meter 11, that is, a condition of the smart meter 11 when loaded. The load simulator 200 includes a load resistor 210 and a load switch 220, wherein the load switch 220 is used for controlling the connection of the load resistor 210. In one embodiment, the resistance of the load resistor 210 is adjustable, so that the situation of the smart meter 11 with different situations of load access can be simulated. The control device 600 can control the load switch 220 to be turned off, so as to control the load resistor 210 to be connected.
When the power grid impact current simulation device 300 is used, the power grid impact current simulation device is electrically connected with the intelligent electric meter 11 and is used for realizing the simulation of the short-time impact current of the intelligent electric meter 11. The grid impact current simulation apparatus 300 adopts a charging simulation for a power capacitor, that is, the grid impact current simulation apparatus 300 includes a capacitor. In one embodiment, the grid inrush current simulator 300 includes an inrush current control switch 310 and a tungsten lamp 320. One end of the rush current control switch 310 is connected with the smart meter 11 when in use. One end of the tungsten lamp 320 is connected to the rush current control switch 310. The rush current control switch 310 is used for controlling the tungsten lamp 320 to be switched on. Because the tungsten lamp 320 has capacitance, 10 times of impulse current can be generated in a cold state. In one embodiment, the tungsten lamp 320 is a type S14-E27 tungsten lamp, the type of the tungsten lamp 320 is 10W or less, and the rated voltage is 110V to 240V. In one embodiment, the control device 600 is used to control the switching off of the rush current control switch 310. The power grid impact current simulation device 300 is used for reproducing an impact large current generated by a power grid short-circuit fault or a capacitive load, and the impact large current can affect a sampling circuit of the smart meter 11.
When the power grid pulse interference simulation device 400 is used, the power grid pulse interference simulation device is electrically connected with the intelligent electric meter 11 and is used for simulating pulse interference of the intelligent electric meter 11. In one embodiment, the grid impulse disturbance simulator 400 may include an impulse disturbance control switch 410 and a single-phase asynchronous motor 420. One end of the pulse interference control switch 410 is connected with the smart meter 11 when in use. One end of the single-phase asynchronous motor 420 is connected with the pulse interference control switch 410. The pulse interference control switch 410 is used for controlling whether the single-phase asynchronous motor 420 is switched on or not. The control device 600 is used for controlling the pulse interference control switch 410 to be turned off, so as to control whether the single-phase asynchronous motor 420 is used in an engaged mode. The grid pulse interference simulation device 400 is used for reproducing pulse interference generated by arc discharge when a grid switch contact is disconnected, wherein the pulse interference is high in amplitude, steep in rising edge and low in energy, has strong interference on the smart electric meter 11, and cannot damage the smart electric meter 11. The simulation of the impulsive disturbance is simulated by breaking an inductive load using a vacuum switch, which is referred to as the impulsive disturbance control switch 410, and the inductive load is referred to as the single-phase asynchronous motor 420. In one embodiment, the single-phase asynchronous motor 420 has a model number YL8022, a pole number of 2 poles, a rated power of 100W, and a rated voltage of 220V. One end of the single-phase asynchronous motor 420 is connected to the pulse interference control switch 410, and the other end is grounded.
When in use, the power grid harmonic interference device 500 is electrically connected with the smart electric meter 11 and used for simulating harmonic interference generated by a nonlinear load of a power grid. In one embodiment, the grid harmonic disturbance device 500 includes a harmonic disturbance control switch 510, a single-phase thyristor 520, a current meter 530, and a resistor 540. One end of the harmonic interference control switch 510 is connected with the smart meter 11 when in use. One end of the single-phase thyristor 520 is connected with the harmonic interference control switch 510. One end of the ammeter 530 is connected with the other end of the single-phase thyristor 520. One end of the resistor 540 is connected to the other end of the ammeter 530. The control device 600 is used to control the turn-off of the harmonic disturbance control switch 510. The power grid harmonic interference device 500 is used for simulating harmonic interference generated by a nonlinear load of a power grid, wherein the harmonic interference may have an influence on the metering and power supply of the smart meter 11. Because the single-phase thyristor 520 integrates the synchronous transformer, the phase detection circuit, the phase-shifting trigger circuit and the output thyristor, when the control voltage is changed, the trigger phase angle of the output thyristor can be changed, namely, the voltage regulation of a single-phase junction current point is realized. In one embodiment, the single-phase thyristor 520 is an enhanced full-isolation single-phase thyristor, and is suitable for use in current change rate applications, and the single-phase thyristor 520 is a type DIY-H220D 35. The control signal of the single-phase controllable silicon 520 has more signals of 0V to 5V, 0V to 10V and 4 to 20 mA. In actual use, the AO output of the control device 600 controls the input pin of the single-phase thyristor 520, thereby controlling the output of the single-phase thyristor 520.
The embodiment provides a simulation system 10 for simulating the operation condition of the smart meter 11. The simulation system 10 includes a voltage interference device 100, a load simulation device 200, a grid inrush current simulation device 300, a grid impulse interference simulation device 400, a grid harmonic interference device 500, and a control device 600. The voltage interference device 100 is used for simulating voltage interference conditions of the smart meter 11, such as power grid overvoltage, power frequency undervoltage and the like. The load simulation device 200 is used for simulating the simulation of the situation that the smart meter is connected with different loads. The power grid impact current simulation device 300 is used for simulating pulse interference suffered by the smart meter 11. The power grid harmonic interference device 400 is used for simulating harmonic interference generated by a nonlinear load of a power grid. The control device 600 is configured to control operations of the voltage interference device 100, the load simulation device 200, the grid impact current simulation device 300, the grid impulse interference simulation device 400, and the grid harmonic interference device 500, so as to simulate different operating conditions of the smart meter. The simulation system 10 provided by the application can simulate various conditions in the operation process of the intelligent electric meter, and solves the problem that the traditional method for simulating the operation environment of the intelligent electric meter is single in mode.
In one embodiment of the present application, the control switch 120 includes a first control switch 121, a second control switch 122, a third control switch 123, and a fourth control switch 124. One end of the first control switch 121, one end of the second control switch 122, one end of the third control switch 123, and one end of the fourth control switch 124 are all connected to the single-phase voltage regulator 110, and the other end of the first control switch is connected to the smart meter 11. The first control switch 121, the second control switch 122, the third control switch 123 and the fourth control switch 124 are connected in parallel. When the control device 600 controls the first control switch 121 and the third control switch 123 to be turned off, the voltage interference device 100 simulates a grid overvoltage. When the control device 600 controls the second control switch 122 and the fourth control switch 124 to turn off, the voltage interference device 100 is mainly used for simulating overvoltage, undervoltage and overcurrent of a power grid for a long time, which may cause the smart meter 11 to generate heat and turn off a screen.
In an embodiment of the present application, the load resistor 210 includes a first load resistor 211, a second load resistor 212, and a third load resistor 213. The load switch 220 includes a first load switch 221, a second load switch 222, and a third load switch 223. One end of the first load switch 221 is connected to the smart meter 222 when in use, and the other end is electrically connected to the first load resistor 211. One end of the second load switch 222 is connected to the smart meter 11 when in use, and the other end is electrically connected to the second load resistor 212. One end of the third load switch 223 is connected to the smart meter 11 when in use, and the other end is electrically connected to the third load resistor 213. The first load switch 221, the second load switch 222, and the third load switch 223 are connected in parallel. The first load resistor 211, the second load resistor 212, and the third load resistor 213 are connected in parallel. The control device 600 may control the connection amount of the load resistor 210 by controlling the first load switch 221, the second load switch 222, and/or the third load switch 223 to be turned off, so as to achieve the purpose of simulating loads of the smart meter 11 under different conditions.
In one embodiment of the present application, the voltage interference apparatus 100 further includes a first voltmeter 130 and a second voltmeter 140. The first voltmeter 130 is connected in parallel with the primary side 111 of the single-phase voltage regulator, and the first voltmeter 130 is configured to detect a voltage on the primary side of the single-phase voltage regulator 110. The second voltmeter 140 is connected in parallel to the secondary side 112 of the single-phase voltage regulator, wherein the secondary side 112 of the single-phase voltage regulator is connected to the first control switch 121, the second control switch 122, the third control switch 123 and the fourth control switch 124. In addition, the rush current control switch 310 and the tungsten lamp 320 are connected in parallel with the second voltmeter 140. The impulsive disturbance control switch 410 and the single-phase asynchronous motor 420 are connected in parallel with the second voltmeter 140. The second voltmeter 140 is used for detecting the voltage across the load simulator 200.
In an embodiment of the present application, the grid harmonic interference device 500 further includes a heat sink 550 for performing a heat dissipation process on the single-phase thyristor 520. The radiator 550 may be a fan or an air conditioner, and may be selected specifically according to actual needs as long as the cooling is performed, which is not limited in the present application.
In one embodiment of the present application, the simulation system 10 further includes a meter hanging rack 800 for placing the smart meter 11 during use. The meter hanging rack 800 is used for connecting the smart meter 11 into the analog simulation system 10.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An analog simulation system for simulating the operating conditions of a smart meter (11), comprising:
the voltage interference device (100) is electrically connected with the intelligent ammeter (11) in use and is used for simulating the voltage interference condition of the intelligent ammeter (11); the voltage interference device (100) comprises a single-phase voltage regulator (110) and a control switch (120), wherein the control switch (120) is used for adjusting the output voltage of the single-phase voltage regulator (110) so as to control the analog voltage of the voltage interference device (100);
the load simulation device (200) is electrically connected with the intelligent electric meter (11) in use and used for realizing simulation of the load condition of the intelligent electric meter (11), the load simulation device (200) comprises a load resistor (210) and a load switch (220), and the load switch (220) is used for controlling connection of the load resistor (210);
the power grid impact current simulation device (300) is electrically connected with the intelligent electric meter (11) when in use and is used for realizing the simulation of the short-time impact current of the intelligent electric meter (11);
the power grid pulse interference simulation device (400) is electrically connected with the intelligent electric meter (11) when in use and is used for simulating pulse interference of the intelligent electric meter (11);
the power grid harmonic interference device (500) is electrically connected with the intelligent electric meter (11) in use and is used for simulating harmonic interference generated by a nonlinear load of a power grid;
a control device (600) electrically and signally connected to the voltage disturbance device (100), the load simulator (200), the grid inrush current simulator (300), the grid impulse disturbance simulator (400), and the grid harmonic disturbance device (500);
the control device (600) is used for controlling the operations of the voltage interference device (100), the load simulation device (200), the power grid impact current simulation device (300), the power grid impulse interference simulation device (400) and the power grid harmonic interference device (500).
2. The analog simulation system according to claim 1, wherein the control switch (120) comprises a first control switch (121), a second control switch (122), a third control switch (123) and a fourth control switch (124), one end of each of which is connected to the single-phase voltage regulator (110), and the other end of each of which is connected to the smart meter (11);
the first control switch (121), the second control switch (122), the third control switch (123), and the fourth control switch (124) are connected in parallel;
the control device (600) is used for controlling the first control switch (121), the second control switch (122), the third control switch (123) and the fourth control switch (124) to be turned off.
3. The simulation system of claim 2, wherein the load resistance (210) comprises a first load resistance (211), a second load resistance (212), and a third load resistance (213); the load switch (220) comprises a first load switch (221), a second load switch (222), and a third load switch (223);
one end of the first load switch (221) is connected with the intelligent electric meter (11) when in use, and the other end of the first load switch is electrically connected with the first load resistor (211);
one end of the second load switch (222) is connected with the intelligent electric meter (11) when in use, and the other end of the second load switch is electrically connected with the second load resistor (212);
one end of the third load switch (223) is connected with the intelligent electric meter (11) when in use, and the other end of the third load switch is electrically connected with the third load resistor (213);
the first load switch (221), the second load switch (222), and the third load switch (223) are connected in parallel; the first load resistor (211), the second load resistor (212), and the third load resistor (213) are connected in parallel;
the control device (600) is used for controlling the first load switch (221), the second load switch (222) and the third load switch (223) to be switched off.
4. The analog simulation system of claim 2, wherein the voltage perturbation device (100) further comprises:
a first voltmeter (130) connected in parallel to a primary side (111) of a single-phase voltage regulator, the first voltmeter (130) being configured to detect a voltage at the primary side of the single-phase voltage regulator (110);
and a second voltmeter (140) connected in parallel to a single-phase regulator secondary side (112), wherein the single-phase regulator secondary side (112) is connected to the first control switch (121), the second control switch (122), the third control switch (123), and the fourth control switch (124).
5. The simulation system of claim 4, wherein the grid inrush current simulation device (300) comprises:
the impact current control switch (310) is connected with the intelligent electric meter (11) at one end when in use;
a tungsten lamp (320) having one end connected to the rush current control switch (310);
the rush current control switch (310) and the tungsten lamp (320) are connected in parallel with the second voltmeter (140);
the control device (600) is used for controlling the switch-off of the impact current control switch (310).
6. The simulation system of claim 4, wherein the grid glitch simulation means (400) comprises:
the pulse interference control switch (410) is connected with the intelligent electric meter (11) at one end when in use;
a single-phase asynchronous motor (420) having one end connected to the pulse interference control switch (410);
the pulse interference control switch (410) and the single-phase asynchronous motor (420) are connected in parallel with the second voltmeter (140);
the control device (600) is used for controlling the turn-off of the pulse interference control switch (410).
7. The simulation system of claim 4, wherein the grid harmonic disturbance device (500) comprises:
a harmonic interference control switch (510), one end of which is connected with the intelligent electric meter (11) when in use;
a single-phase thyristor (520) having one end connected to the harmonic interference control switch (510);
an ammeter (530), one end of which is connected with the other end of the single-phase thyristor (520);
a resistor (540) having one end connected to the other end of the ammeter (530);
the resistor (540) is connected in parallel with the second voltmeter (140);
the control device (600) is used for controlling the turn-off of the harmonic interference control switch (510).
8. The simulation system of claim 7, wherein the grid harmonic disturbance device (500) further comprises:
and the radiator (550) is used for performing heat radiation treatment on the single-phase controllable silicon (520).
9. The simulation system of claim 7, further comprising:
the power supply (700), the one end of single-phase voltage regulator primary side (111) with power (700) electricity is connected, the other end ground connection of single-phase voltage regulator primary side (111).
10. The simulation system of claim 1, further comprising:
the meter hanging frame (800) is used for placing the intelligent electric meter (11) when in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468811.9U CN211263749U (en) | 2019-09-03 | 2019-09-03 | Analog simulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468811.9U CN211263749U (en) | 2019-09-03 | 2019-09-03 | Analog simulation system |
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| CN211263749U true CN211263749U (en) | 2020-08-14 |
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| CN201921468811.9U Active CN211263749U (en) | 2019-09-03 | 2019-09-03 | Analog simulation system |
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2019
- 2019-09-03 CN CN201921468811.9U patent/CN211263749U/en active Active
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Effective date of registration: 20200923 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |