CN116780780B - Power supply control device - Google Patents
Power supply control device Download PDFInfo
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- CN116780780B CN116780780B CN202311041789.0A CN202311041789A CN116780780B CN 116780780 B CN116780780 B CN 116780780B CN 202311041789 A CN202311041789 A CN 202311041789A CN 116780780 B CN116780780 B CN 116780780B
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Abstract
The invention provides a power supply control device which is used for controlling the output of a generator set, wherein the power supply control device controls the state of a grounding switch of the generator set through a grounding controller and controls the external feeding of the generator set; controlling an input path of an enable signal of the ground controller by the second controller; the second controller is controlled through the first controller and the remote switch so as to realize the remote control of the grounding controller. When the local switch provides an accessed enabling signal to the first input path, the grounding controller accesses the enabling signal through the first input path to control the generator set to be closed and the generator set to output outwards, and simultaneously, the remote control of the remote switch is shielded, so that the safety is ensured; when the local switch provides the accessed enabling signal to the remote control path, the first input path does not have enabling signal output, the grounding controller is completely controlled by the second controller, the first controller and the remote switch, and remote control of external output of the generator set can be realized.
Description
Technical Field
The invention relates to the technical field of generator control, in particular to a power supply control device.
Background
The diesel generator set has high output power and is most widely used, wherein, in order to improve the output stability of the diesel generator set, a storage battery is generally arranged, and the storage battery can be used as an emergency power supply for external output when the output of the diesel generator set is abnormal.
In order to realize the controllability of various working modes of the diesel generator set, three control circuits of emergency, local control and remote control are generally arranged, and in the prior art, the emergency control end and the local control end are arranged in a diesel generator set carriage body and are arranged in a diesel generator set working machine room, and the remote control end is arranged in a remote monitoring machine room.
The remote monitoring machine room is far away from the working machine room of the diesel generator set, and the working environment of the working machine room of the diesel generator set is not suitable for a user to camp, so that the user generally camps in the remote monitoring machine room, operates at a remote control end, and the remote control end lacks a one-key starting and closing function, when the working mode of the diesel generator set is required to be switched, the user often needs to go to the working machine room of the diesel generator set to switch, the operation is inconvenient, and the control of closing the storage battery also needs to go to the working machine room to operate, when the user misoperation occurs and the direct current power supply is not closed, the situation that the storage battery continuously feeds abnormally and outputs, and the service life of the battery is damaged can occur.
Disclosure of Invention
Based on the above, the invention aims to provide a power supply control device so as to realize remote control of a grounding switch of a generator set, solve the problem that each power supply device in the generator set can not be remotely closed by one key, and improve the comprehensive service life of the generator set.
In one aspect, the present invention provides a power supply control apparatus for output control of a generator set, the power supply control apparatus comprising: a remote switch, a local switch, a grounding controller, a first controller and a second controller, wherein,
the grounding controller is used for closing a grounding switch of the generator set when the enabling signal is accessed;
the second controller is used for switching the enabling signal input end of the grounding controller from a first input path to a second input path when the enabling signal is accessed;
the input end of the second input path is used for accessing the enabling signal;
the local switch comprises a remote control setting state and a local control setting state, and provides the accessed enabling signal to a remote control path in the remote control setting state, and provides the accessed enabling signal to the first input path in the local control setting state;
the remote switch is used for controlling the setting state of the first controller according to the setting state of the remote switch;
the first controller is used for switching the remote control path to a first electric path of the enabling signal input end of the second controller from an off state to an on state when the first controller is switched from an off setting state to a on setting state.
Optionally, the first controller is further configured to switch the enable signal to the second electrical path of the second input path from the off state to the on state when switching from the off-set state to the on-set state.
Optionally, the first controller includes a first relay, a coil of the first relay is connected in series with a control power supply through the remote switch, and two sets of contact switches of the first relay are connected in series in the first electrical path and the second electrical path, respectively.
Optionally, the grounding controller comprises a contactor, one end of a coil of the contactor is an enabling signal input end, the other end of the coil of the contactor is connected to a negative end of the control power supply, and a contact switch of the contactor is a grounding switch of the generator set.
Optionally, the second controller comprises a second relay, wherein,
one end of the coil of the second relay is an enabling signal input end, and the other end of the coil of the second relay is connected to the negative end of the control power supply;
the common contact of the second relay is connected to the enabling signal input end of the grounding controller, the normally closed contact is connected to the first input path, and the normally open contact is connected to the second input path.
Optionally, the negative terminal of the control power supply is also grounded through the grounding switch.
Optionally, the set state of the local switch further comprises an emergency set state and a shutdown set state, wherein,
in the emergency setting state, the local switch provides the accessed enabling signal to the first input path;
in the off-set state, the local switch turns off transmission of the enable signal to the first input path and the remote control path.
The power supply control device controls the grounding switch state of the generator set through the grounding controller, and controls the external feeding of the generator set; controlling an input path of an enable signal of the ground controller by the second controller; the second controller is controlled through the first controller and the remote switch so as to realize the remote control of the grounding controller. When the local switch provides an accessed enabling signal to the first input path, the grounding controller accesses the enabling signal through the first input path to control the generator set grounding switch to be closed, and the generator set outputs the external; when the local switch provides the accessed enabling signal to the remote control path, the first input path does not have enabling signal output, the grounding controller is completely controlled by the second controller, the first controller and the remote switch, and remote control of external output of the generator set can be realized. According to the power supply control device provided by the invention, when the local switch provides the accessed enabling signal to the remote control path and is switched to the remote control mode, the remote control of external output is realized, when misoperation occurs, the operation of the power supply control device does not need to be carried out in a working machine room of the generator set, the external output can be remotely and directly disconnected, the influence of the abnormal output of the generator set on the service life of the power supply is reduced, and the service life of the generator set is prolonged; when the local switch is in a local control setting state, the control of the remote switch is shielded, the risk of misoperation caused by the influence of the remote control on the local control is avoided, and the safety is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a power control device according to an embodiment of the present invention.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Based on the problem that remote one-key control of a generator set cannot be realized in the prior art, the invention provides a power supply control device, which comprises: the system comprises a remote switch, a local switch, a grounding controller, a first controller and a second controller, wherein the grounding controller is used for closing the grounding switch of the generator set when an enabling signal is accessed; the second controller is used for switching the enabling signal input end of the grounding controller from a first input path to a second input path when the enabling signal is accessed; the input end of the second input path is used for accessing the enabling signal; the local switch is used for providing the accessed enabling signal to the first input path or the remote control path according to the setting state of the local switch; the remote switch is used for controlling the setting state of the first controller according to the setting state of the remote switch; the first controller is used for switching the remote control path to a first electric path of the enabling signal input end of the second controller from an off state to an on state when the first controller is switched from an off setting state to a on setting state. The specific structure of the power supply control device is shown below.
Referring to fig. 1, a schematic structure of a power control device according to an embodiment of the invention is shown, which mainly includes a local switch SA01, a remote switch SA02, a contactor JD1, a grounding switch JD1-1, a first relay KA01 and a second relay KA02.
The contactor JD1 is used as a grounding controller and is used for controlling a grounding switch JD1-1, when a coil of the contactor JD1 is powered on (connected with an enabling signal), the grounding switch JD1-1 is in a closed state, and when the coil of the contactor JD1 is in a power-off state, the grounding switch JD1-1 is in an open state.
In the present embodiment, one end of the coil of the contactor JD1 is connected to the common contact of the third switch KA02-1, and the other end is connected to the negative terminal (B-) of the control power BT, and is grounded through the grounding switch JD1-1, and an enable signal (power-on) is connected through the first input path 111 or the second input path 112 according to the contact action state of the third switch KA 02-1.
The second relay KA02 is used as a second controller to control the action state of the third switch KA02-1, the corresponding third switch KA02-1 is a contact switch of the second relay KA02, when the coil of the second relay KA02 is in a power-off state, the third switch KA02-1 is in a normally-closed state, and the first input path 111 is communicated to the contactor JD1; when the coil of the second relay KA02 is in the energized state, the movable contact of the third switch KA02-1 is operated to the normally open contact, and the second input path 112 is connected to the contactor JD1.
The first relay KA01 is used as a first controller to control the first switch KA01-1 and the second switch KA01-2, the corresponding first switch KA01-1 and second switch KA01-2 are normally open contact switches, and when the coil of the first relay KA01 is in a power-off state, the first switch KA01-1 and the second switch KA01-2 are in a power-off state; when the coil of the first relay KA01 is in the power-on state, the first switch KA01-1 and the second switch KA01-2 are in the on state, and are turned on corresponding to the second input path 112 and the remote control path 113.
The local switch SA01 is provided with an emergency, local control, remote control and open circuit (0) switch, and the position states corresponding to the local switch SA01 include an emergency setting state, a local control setting state, a remote control setting state and an open circuit setting state, and in the emergency setting state and the local control setting state, the local switch SA01 transmits an enabling signal l+ to the first input path 111; in the remote control set state, the local switch SA01 passes the enable signal l+ to the remote control path 113; in the off-set state, the local switch SA01 turns off the path of the enable signal l+ to the first input path 111 and the remote control path 113, corresponding to the generator set being completely turned off.
The remote switch SA02 is connected in series with the coil of the first relay KA01 and the control power BT, specifically, one end of the coil of the first relay KA01 is connected to the positive terminal (b+) of the control power BT, and the other end is connected to the negative terminal (B-) of the control power BT through the remote switch S02.
In this embodiment, the remote switch S02 is a manual reset switch, specifically, a push button switch, for example, and when it is required to switch from an on state to an off state and from the off state to the on state, the switch button is pressed once to switch the state, and the switch state is maintained as the pressed state.
In an alternative embodiment, a driving module matched with the remote switch S02 is further disposed in the remote control terminal 01, the driving module can be in communication connection with a mobile terminal, a corresponding software application is carried in the mobile terminal, a corresponding control signal can be sent to the driving module by operating the software application on the mobile terminal, the driving module is controlled to regulate and control the state of the remote switch S02, further remote control expansion of remote control is achieved, and flexibility of remote control is improved.
In this embodiment, the enabling signal l+ is, for example, a power generation output power supply of the generator set, and forms a charging loop with the control power supply BT through the charging module, the coil of the second relay KA02 and the coil of the contactor JD1 are connected to the negative terminal of the control power supply BT, so that the enabling signal l+ can form a current in the coil of the second relay KA02 and the coil of the contactor JD1 through the charging loop, and drive the second relay KA02 and the contactor JD1 to control the corresponding contact switch to operate.
In the local control mode, the local switch SA01 is set in an emergency setting state or a local control setting state, the local switch SA01 only provides an enable signal l+ to the first input path 111, the remote control path 113 has no input of the enable signal l+, the coil of the second relay KA02 cannot be electrified, the movable contact corresponding to the third switch KA02-1 is arranged on the normally closed contact, the coil of the contactor JD1 is connected with the first input path 111, the enable signal l+ is obtained by the first input path 111, the ground switch 1-1 is controlled to be conducted, the output loop of the JD set is conducted through the conduction of the ground switch JD1-1, and the generator set outputs.
In the local control mode, the enable signal l+ is provided to the first input path 111 only through the local switch SA01, the remote control path 113 has no input of the enable signal l+, no matter how the first relay KA01 acts, the coil of the second relay KA02 cannot be powered, and the movable contact of the third switch KA02-1 is stably placed on the normally closed contact, that is, in the local control mode, the remote control is invalid, separation of the local control and the remote control is realized, interference between the local control and the remote control caused by misoperation can be effectively avoided, and safety is improved.
In the remote control mode, the local switch SA01 is set in a remote control setting state, the local switch SA01 only provides an enable signal l+ to the remote control path 113, no enable signal l+ is connected to the first input path 111, at this time, the coil of the first relay KA01 is powered on through the remote switch SA02, the first switch KA01-1 and the second switch KA01-2 are controlled to be switched from an off state to a on state through the first relay KA01, the second input path 112 and the remote control path 113 are conducted to be connected with the enable signal l+, the coil of the second relay KA02 receives the enable signal l+ through the remote control path 113 to be powered on, then the movable contact of the third switch KA02-1 is controlled to be switched to a normally-open contact through the remote control path 113, the second input path 112 is connected to the coil of the contactor JD1, the coil of the contactor JD1 receives the enable signal l+ through the second input path 112 to be powered on, the ground switch JD1-1 is driven to be switched from an off state to an on state, and the output loop of the generator set is conducted through the ground switch JD 1-1.
In the remote control mode, the remote switch SA02 is switched from a closed state to an open state, the coil of the first relay KA01 is powered off, the first switch KA01-1 and the second switch KA01-2 are switched to an open state, the second input path 112 and the remote control path 113 are enabled to be disconnected to enable the transmission of a signal L+, the coil of the contactor JD1 is powered off, the grounding switch JD1-1 is disconnected, the output loop of the generator set is disconnected, and the generator set stops outputting to the outside.
When the remote control path 113 is disconnected, the coil of the second relay KA02 is de-energized, so that the movable contact of the third switch KA02-1 is reset to the normally closed contact, and the coil of the contactor JD1 is connected to the first input path, so that interference of a possible interference signal on the second input path 112 to the contactor JD1 can be avoided, and reliability of control of stopping output of the generator set by remote control can be ensured.
In this embodiment, the first switch KA01-1 is connected in series to the second input path 112, and when the remote control generator set stops outputting outside, the first switch KA01-1 can respond to the first relay KA01 to rapidly disconnect the second input path 112, rapidly disconnect the power supply of the normally open contact of the third switch KA02-1, reduce the risk of arcing during the process of switching the movable contact of the subsequent third switch KA02-1 from the normally open contact to the normally closed contact, improve the contact reliability of the switch KA02-1, and improve the system reliability. And the contactor JD1 can be enabled to rapidly respond to the disconnection of the second input path 112 to disconnect the grounding switch JD1-1, so that the response speed of stopping the external output of the remote control generator set is improved.
The power supply control device of the embodiment is composed of passive elements, so that the requirements of active elements like a programmable logic controller and the like are reduced, the requirements of the active elements on a working power supply can be reduced, the energy consumption is saved, no active elements are used, no current is lost in a loop of the power supply control device of the embodiment before the generator set is electrified and output, and the energy consumption of a system can be further reduced.
The power supply control device provided by the invention can realize remote control of one-key power-on output of the generator set, reduce the operation requirement of personnel and improve the control efficiency of the generator set.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (3)
1. A power supply control apparatus for output control of a generator set, the power supply control apparatus comprising: a remote switch, a local switch, a grounding controller, a first controller and a second controller, wherein,
the grounding controller is used for closing a grounding switch of the generator set when the enabling signal is accessed;
the second controller is used for switching the enabling signal input end of the grounding controller from a first input path to a second input path when the enabling signal is accessed;
the local switch comprises a remote control setting state and a local control setting state, and provides the accessed enabling signal to a remote control path in the remote control setting state, and provides the accessed enabling signal to the first input path in the local control setting state;
the input end of the second input path is connected with the input end of the local switch in parallel and is used for bypassing the transmission path of the local switch to access the enabling signal;
the remote switch is used for controlling the setting state of the first controller according to the setting state of the remote switch;
the first controller is used for switching the remote control path to a first electric path of the enabling signal input end of the second controller from an off state to an on state when the first controller is switched from an off setting state to a path setting state;
the first controller is further used for switching the enabling signal to a second electric path of the second input path from an off state to an on state when the first controller is switched from an off setting state to a path setting state, the first controller comprises a first relay, a coil of the first relay is connected with a control power supply in series through the remote switch, and two groups of contact switches of the first relay are connected in series in the first electric path and the second electric path respectively;
the grounding controller comprises a contactor, one end of a coil of the contactor is an enabling signal input end, the other end of the coil of the contactor is connected to the negative end of the control power supply, and a contact switch of the contactor is a grounding switch of the generator set;
the second controller comprises a second relay, one end of a coil of the second relay is an enabling signal input end, the other end of the coil of the second relay is connected to the negative end of the control power supply, a common contact of the second relay is connected to the enabling signal input end of the grounding controller, a normally closed contact is connected to the first input path, and a normally open contact is connected to the second input path.
2. The power control device of claim 1 wherein the negative terminal of the control power supply is also grounded through the ground switch.
3. The power control device of claim 1, wherein the set state of the local switch further comprises an emergency set state and a shutdown set state, wherein,
in the emergency setting state, the local switch provides the accessed enabling signal to the first input path;
in the off-set state, the local switch turns off transmission of the enable signal to the first input path and the remote control path.
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| CN202311041789.0A CN116780780B (en) | 2023-08-18 | 2023-08-18 | Power supply control device |
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| CN202311041789.0A CN116780780B (en) | 2023-08-18 | 2023-08-18 | Power supply control device |
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| CN116780780A (en) | 2023-09-19 |
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