CN214479640U - AGV contactless power supply and energy storage control device capable of being controlled smoothly - Google Patents
AGV contactless power supply and energy storage control device capable of being controlled smoothly Download PDFInfo
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- CN214479640U CN214479640U CN202023008587.0U CN202023008587U CN214479640U CN 214479640 U CN214479640 U CN 214479640U CN 202023008587 U CN202023008587 U CN 202023008587U CN 214479640 U CN214479640 U CN 214479640U
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Abstract
The utility model discloses a AGV contactless power supply and energy storage control device capable of being controlled smoothly, wherein, the AGV load is connected with an intelligent charging controller and a super capacitor group in parallel; the intelligent charging controller is connected with the super capacitor bank in series through the first high-speed switch, the voltage ammeter is connected to the AGV load in parallel through the second high-speed switch, stability of power supply power is achieved through non-contact power supply smooth control, preparation for energy storage during normal operation of equipment is achieved, the load is increased for the rear end when the load is low in power, power is provided for the rear end when the load is high in power, the power serves as a power supply to provide automatic shutdown time for the equipment when the power is cut off, danger is prevented, smooth control of non-contact power supply is achieved overall, power supply compensation is achieved for non-contact power supply, and the whole system is more stable, safe and reliable.
Description
Technical Field
The utility model relates to a AGV control technology field, especially AGV contactless power supply energy storage technology field specifically are a AGV contactless power supply energy storage control device that can smooth control.
Background
AGVs are increasingly used in unmanned workshops and require 24 hours of uninterrupted work, so that AGVs with contactless power supply are born. However, the application of the existing contactless power supply technology to the AGV is not mature, and due to reasons such as ground fluctuation, AGV tracking errors and the like, the problems that the instantaneous power of the AGV contactless power supply system is insufficient, the contactless energy effective utilization rate is low when the load is small and the like exist. Uneven load is unfavorable for the effective output of contactless power supply, because in addition be wireless power supply, the external equipment has the condition of outage, and there may be danger in this moment AGV outage suddenly, needs short time delay for AGV auto-shutdown reserve time, for solving these problems, need be through additional energy memory, and the implementation of cooperation load power is estimated and is smooth control to AGV power supply system's effective output, improves the stability of contactless power supply in the AGV single-machine system.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned prior art, the utility model aims to improve among the prior art contactless power supply system and have instantaneous power not enough, and contactless energy availability is low scheduling problem when the load is less. Uneven load is not favorable to the effective output of contactless power supply and outage latency scheduling problem, realizes smooth control, and the AGV does not need backup battery, practices thrift the cost. The AGV non-contact power supply and energy storage control method based on the smooth control can improve the operation stability of the AGV.
Specifically, the utility model discloses a realize like this:
a AGV contactless power supply energy storage control device capable of smooth control comprises: a contactless power module, intelligent charging controller, AGV load and super capacitor group for inserting external power source, wherein: the AGV load is connected with the intelligent charging controller and the super capacitor bank in parallel; an ammeter is connected in series between the non-contact power supply module and the AGV load and used for detecting power supply current; the intelligent charging controller is connected with the super capacitor bank in series through the first high-speed switch, the super capacitor bank is connected with the voltage ammeter in series, the voltage ammeter is connected to the AGV load in parallel through the second high-speed switch, a first diode is connected in series between the contactless power supply module and the AGV load, and the second high-speed switch is connected with the AGV load in parallel through the second diode in series.
Furthermore, the super capacitor group is formed by connecting a plurality of groups of super capacitors in parallel, each group of super capacitors is provided with an independent high-speed switch for control,
further, the anode of the first diode is connected with the anode of the contactless power supply module; and the cathode of the second diode is connected to the AGV load in parallel.
Further, a main switch is installed between the contactless power supply module and the AGV load.
Furthermore, the intelligent charging controller is used for detecting the total current data of the circuit fed back by the ammeter in real time, and judging whether the current value is within a threshold value, or is higher than an upper threshold value, lower than a lower threshold value and zero.
The utility model discloses a theory of operation introduces: a set of function-controlled PLC controllers are compiled to serve as intelligent charging controllers in the device and are used for diagnosing that when the total current of a circuit is within a threshold value, voltage and ammeter data are obtained to judge whether energy storage in a super capacitor bank is sufficient or not, a first high-speed switch can be controlled to be turned on, one of the super capacitors is charged, and a second high-speed switch is turned off; the upper limit threshold of the voltage ammeter can be detected, when the voltage of the energy-storing super capacitor reaches the upper limit threshold, the first high-speed switch is switched off, and when the voltage value of the energy-storing super capacitor is detected to recover below the upper limit threshold, the first high-speed switch is switched on again to charge the energy-storing super capacitor;
when the total current of the circuit is higher than the upper limit threshold value, a group of non-energy-storage super capacitors of the first high-speed switch is turned on to be charged, the super capacitors are used as loads, and meanwhile, the second high-speed switch is turned off and does not provide power for the AGV load; simultaneously detecting the upper limit threshold of the voltage ammeter, switching off the first high-speed switch when the voltage of the super capacitor used as the load reaches the upper limit threshold, and switching on the first high-speed switch again to charge the super capacitor when the voltage value of the voltage ammeter used as the super capacitor used as the load is detected to be recovered below the upper limit threshold;
when the total current of the circuit is lower than the lower limit threshold, the current which needs to be supplemented can be calculated to enable the total current to be the same as the normal level, the current is monitored through a voltage and current meter, one group or a plurality of groups of third high-speed switches are selected to be turned on to supply power for the AGV load, and the power output is increased; controlling the first high-speed switch to be always switched off, not charging the super capacitor bank, and reducing the load until the rear-end power returns to normal;
when the total current of the circuit is zero, the second high-speed switch in the default state is a normally open switch, the second high-speed switch is opened, the super capacitor bank supplies power for the AGV load, and the AGV equipment is controlled to execute automatic shutdown.
The utility model has the advantages that: by adopting the scheme, the device is prepared for energy storage when working normally, the load is increased for the rear end when the load is low in power, the power is provided for the rear end when the load is high in power, and the power is used as a power supply to provide automatic shutdown time for the device when the power is off so as to prevent danger. The smooth control of the contactless power supply is realized overall, and the power supply compensation is performed on the contactless power supply. The equipment is more stable, safe and reliable. Through contactless power supply smooth control, realized power supply's stability, easily produce the crest current when by original little load, easily produce the trough current when the heavy load, easily produce the trouble when unusual outage, eliminated crest, trough current through smooth control, provide the safety guarantee for unusual outage, reserve AGV safe shutdown time. The power supply power tends to be smooth, the original power is an oscillating waveform through smooth control, the power gradually tends to a straight line, and the power stability is maintained. The service life of each device of the AGV is guaranteed, the stability of the AGV system is prevented from being influenced by the power problem, and the reliability of the whole system is improved.
Drawings
FIG. 1 is a system architecture diagram of the present invention;
FIG. 2 is a schematic flow diagram of the system of the present invention;
in the figure: 1-contactless power supply module; 2-intelligent charge controller; 3.1, 3.2-super capacitor group; 4-AGV load; k1 — master switch; K2.1K2.2 — first high speed switch; k3.1, K3.2-second high speed switch; i1-ammeter; a1, A2-volt ammeter; d1 — first diode; d2 — second diode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example (b):
as shown in fig. 1, the AGV contactless power supply and energy storage control device based on the smooth control includes a plurality of AGV loads 4 which can be connected in parallel according to needs, such as a contactless power supply module 1, an intelligent charging controller 2, and super capacitor banks 3.1 and 3.2. The non-contact power supply module 1 is powered on through a main switch K1, and an AGV load 4 is connected with the intelligent charging controller 2 and the super capacitor sets 3.1 and 3.2 in parallel. An ammeter I1 is connected in series between the contactless power supply module 1 and the AGV load 4 for detecting the power supply current. The intelligent charging controller 2 is connected with the super capacitor sets 3.1 and 3.2 in series through the first high-speed switches K2.1 and K2.2, the voltage and current meters A1 and A2 at the rear ends of the super capacitor sets 3.1 and 3.2 are used for detecting the voltage and the current of the super capacitor sets 3.1 and 3.2, and the output of the super capacitor sets 3.1 and 3.2 finally passes through the second high-speed switches K3.1 and K3.2 and reaches the AGV load 4 to supply power for the AGV load 4. A first diode D1 is connected in series between the contactless power supply module 1 and the AGV load 4, and the anode of the diode is connected with the anode of the contactless power supply module 1; the second high-speed switches K3.1 and K3.2 are connected in series with the second diode D2 and are connected in parallel with the AGV load 4, and the anode of the diode D2 is connected to the second high-speed switches K3.1 and K3.2, so that unidirectional current transmission is realized by arranging the diodes, and it is avoided that the power supply current of the super capacitor sets 3.1 and 3.2 flows to the contactless power supply module 1, or the current of the contactless power supply module 1 directly flows to the super capacitor sets 3.1 and 3.2.
The super capacitor groups 3.1 and 3.2 are connected in parallel, and can be connected in parallel according to needs, each super capacitor group is controlled by a single high-speed switch, and the state of each super capacitor group can be selected to be charging or discharging. The supercapacitor groups 3.1, 3.2 always ensure that one group stores energy and the other group is used as a backup load. The multiple groups of super capacitors 3.1 and 3.2 are switched for use, and the super capacitors are not particularly fixed for energy storage and load.
In the above device, the intelligent charging controller 2 sets the maximum output voltage to be less than the upper limit voltage of the load 4 during the parameter setting, so that the output voltages of the super capacitor sets 3.1 and 3.2 are less than the upper limit voltage of the load 4, and further, the situation that the voltage exceeds the bearing range of the load 4 and is damaged when the super capacitor sets 3.1 and 3.2 supply power to the load 4 is avoided.
Y, X is the ammeter upper and lower threshold values.
The following steps of the control example are two groups of super capacitors 3.1 and 3.2, and multiple groups of super capacitors can be selected to be connected in parallel according to needs in actual application.
In actual use, the intelligent controller executes the following program:
s01: after the main switch K1 is powered on, the contactless power supply module 1 supplies power to the AGV load 4, and the ammeter I1 detects the total current of the circuit. Step two is performed when the current is between the set upper and lower normal current limit thresholds (X < I1< Y), step three is performed when the current is above the set upper limit threshold (Y < I1), step four is performed when the current is below the set lower limit threshold (I1< X), and step five is performed when the current defaults to zero (I1 ═ 0).
S02: the current is between the upper and lower limit threshold values (X < I1< Y), the intelligent charging controller 2 can detect whether one of the super capacitor banks 3.1, 3.2 has sufficient energy storage or not according to the voltage ampere meters a1, a2, and the other has no energy storage, and controls one of the first high-speed switches K2.1, K2.2 to be turned on to charge the super capacitor bank 3.1, and meanwhile, the high-speed switches K3.1, K3.2 are turned off to supply no power to the load. And simultaneously detecting the upper limit threshold of the voltage of the super capacitor voltage ammeters A1 and A2 for energy storage, switching off the first high-speed switches K2.1 and K2.2 when the voltage of the super capacitor groups 3.1 and 3.2 for energy storage reaches the upper limit threshold, and switching on the first high-speed switches K2.1 and K2.2 again to charge the super capacitor groups 3.1 and 3.2 when the voltage of the super capacitor voltage ammeters A1 and A2 for energy storage is detected to be recovered below the upper limit threshold. The first high-speed switches K2.1 and K2.2 of the energy storage super capacitor are controlled to be time delay switches, time delay switch time can be set automatically according to needs, frequent switching is not needed, and when the normal current is between the upper limit threshold and the lower limit threshold, the super capacitor sets 3.1 and 3.2 are guaranteed to have enough energy storage.
S03: at this time, the ammeter I1 is higher than the upper limit threshold (Y < I1), which indicates that the rear-end AGV load 4 is small, and turns on one of the first high-speed switches K2.1 and K2.2, where the non-energy-storage super capacitor banks 3.1 and 3.2 are charged, and the super capacitor banks 3.1 and 3.2 are used as loads, so as to ensure stable power output of the contactless power supply module 1 and improve the effective energy utilization rate. And meanwhile, the high-speed switches K3.1 and K3.2 are switched off, and power is not supplied to the AGV load 4. And simultaneously detecting the upper limit threshold of the voltage of the load super capacitor groups 3.1 and 3.2 voltage ammeters A1 and A2, switching off the first high-speed switches K2.1 and K2.2 when the voltages of the load super capacitor groups 3.1 and 3.2 reach the upper limit threshold, and switching on the first high-speed switches K2.1 and K2.2 again to charge the load super capacitor groups 3.1 and 3.2 when the voltages of the load super capacitor groups 3.1 and 3.2 voltage ammeters A1 and A2 are detected to recover below the upper limit threshold. At this time, since the super capacitor is used as a load, the first high-speed switches K2.1 and K2.2 are frequently switched to ensure the stability of the load.
S04: the ammeter I1 is lower than a set lower limit threshold (I1< X), which indicates that the rear-end AGV load 4 is large, how much current needs to be supplemented is calculated to enable the total current to be the same as the normal level, the current is monitored through the voltage ammeters A1 and A2, one or more groups of high-speed switches K3.1 and K3.2 are selected to be turned on to supply power to the load (more than two groups of super capacitors are used in practical application), and the power output is increased. The first high-speed switches K2.1 and K2.2 are always disconnected, so that the super capacitor sets 3.1 and 3.2 are not charged, and the load is reduced. And step two is executed again when the back end power returns to normal.
S05: when detecting that ammeter I1 electric current is zero (I1 is 0), it indicates that contactless power supply module 1 has not input, may be the outage of outside magnet wire, and default state high speed switch K3.1, K3.2 are normally open switches this moment, and high speed switch K3.1, K3.2 are opened, are supplied power by super capacitor group 3.1, 3.2, and control AGV equipment execution automatic shutdown relevant operation, in case take place danger, guarantee the smooth control of equipment, security and stability.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (4)
1. The utility model provides a AGV contactless power supply energy storage control device that can smooth control which characterized in that includes: a contactless power module, intelligent charging controller, AGV load and super capacitor group for inserting external power source, wherein: the AGV load is connected with the intelligent charging controller and the super capacitor bank in parallel; an ammeter is connected in series between the non-contact power supply module and the AGV load and used for detecting power supply current; the intelligent charging controller is connected with the super capacitor bank in series through the first high-speed switch, the super capacitor bank is connected with the voltage ammeter in series, the voltage ammeter is connected to the AGV load in parallel through the second high-speed switch, a first diode is connected in series between the contactless power supply module and the AGV load, and the second high-speed switch is connected with the AGV load in parallel through the second diode in series.
2. The AGV contactless power supply and energy storage control device of claim 1, wherein the super capacitors are formed by connecting multiple sets of super capacitors in parallel, and each set of super capacitors is provided with a separate high-speed switch for control.
3. The AGV contactless power supply energy storage control device of claim 2, wherein the positive electrode of the first diode is connected to the positive electrode of the contactless power supply module; and the cathode of the second diode is connected to the AGV load in parallel.
4. The AGV contactless power supply energy storage control device of claim 2, wherein a master switch is installed between the contactless power supply module and the AGV load.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564143A (en) * | 2020-12-14 | 2021-03-26 | 云南昆船智能装备有限公司 | AGV (automatic guided vehicle) non-contact power supply and energy storage control system and method capable of realizing smooth control |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112564143A (en) * | 2020-12-14 | 2021-03-26 | 云南昆船智能装备有限公司 | AGV (automatic guided vehicle) non-contact power supply and energy storage control system and method capable of realizing smooth control |
| CN112564143B (en) * | 2020-12-14 | 2024-06-11 | 云南昆船智能装备有限公司 | AGV non-contact power supply energy storage control system and method capable of achieving smooth control |
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