CN112510693A - Power distribution method and system for CT machine - Google Patents
Power distribution method and system for CT machine Download PDFInfo
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- CN112510693A CN112510693A CN202011335961.XA CN202011335961A CN112510693A CN 112510693 A CN112510693 A CN 112510693A CN 202011335961 A CN202011335961 A CN 202011335961A CN 112510693 A CN112510693 A CN 112510693A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
Abstract
The invention provides a power distribution method and a power distribution system for a CT machine. The main power switch is closed, and after the voltage of the main power circuit does not exceed a first preset voltage range, the power circuit of the rotor, the power circuit of the stator and the power circuits of other sub-components are sequentially conducted, so that the circuits of the rotor, the stator and other sub-components are sequentially conducted under the condition that the voltage of the main power circuit is stable, the power-on time sequence of each component is controllable, the surge impact of the huge voltage and current of the main power supply of the CT machine on the circuits of the rotor, the stator and other sub-components is avoided, and the impact on a power system of a hospital where the CT machine is located is also avoided.
Description
Technical Field
The invention relates to the field of power supply control of computed tomography equipment, in particular to a power distribution method and a power distribution system for a CT machine.
Background
The CT is used as large medical electronic and electrical equipment, the structure is complex, the power is high, the number of functional modules is large, mutual crosstalk exists among all parts, and strong electricity is closely crossed and associated with weak points. In order to ensure that the CT equipment can work reliably, the interference between electronic components to other components is reduced, and the self anti-interference capability is also improved.
The CT stator part circuit board mainly comprises a motion control board, a scanning control board, an audio communication board and the like, wherein the power supply of the circuit boards is provided with 220V alternating current by an electric appliance cabinet of a power supply, and then the circuit boards generate proper direct current power supply through various switching power supplies to supply power. The instantaneous power of the CT is up to 100kVA, as long as the CT main switch is closed, all circuit boards and components supply power at the same time, the instantaneous voltage and current of the whole power supply system are the maximum at the moment, almost all CT circuit boards and line interfaces are strongly impacted, so that the interfaces or circuit boards are damaged or the service life of the interfaces or circuit boards is reduced, and the power supply system and the CT system are very unfavorable. The process of air switch actuation inside the CT also can produce great surge, also can cause the injury to other parts and circuit board.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide an overshoot-proof and interference-proof power distribution method and system for a CT machine.
The invention discloses a power distribution method for a CT machine, wherein the power-on process of the CT machine comprises the following steps: acquiring real-time voltages on a total power supply circuit, a power supply circuit of a rotor, a power supply circuit of a stator and power supply circuits of other sub-components except the rotor and the stator of the CT machine; the main power switch is closed, and after the voltage of the main power circuit does not exceed a first preset voltage range, the power circuit of the rotor is conducted; after the voltage of the power circuit of the rotor does not exceed a second preset voltage range, the power circuit of the stator is conducted; and after the voltage of the power supply circuit of the stator does not exceed a third preset voltage range, conducting the power supply circuits of the other sub-components.
Preferably, the power-down process of the CT machine includes the following steps: acquiring the running states of the rotor, the stator and the other sub-components; after the rotor stops running, a power circuit of the rotor is switched off; after the stator stops running, a power supply circuit of the stator is switched off; and after the other sub-components stop operating, the power supply lines of the other sub-components and the main power supply line are turned off.
Preferably, the turning on and off of the power supply line of the rotor is realized by turning on and off a rotor relay on the power supply line of the rotor; the on and off of the power supply circuit of the stator are realized by opening and closing a stator relay on the power supply circuit of the stator; and turning on and off other sub-component relays on the power supply lines of other sub-components to realize the on and off of the power supply lines of other sub-components of the CT machine except the rotor and the stator.
Preferably, the rotor relay, the stator relay and the other component relays are controlled to be turned on and off by a micro-control unit; and the CT machine operation terminal sends an operation instruction to the micro control unit through a wireless network, or receives power supply information of the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuits of the other sub-components.
Preferably, when the difference between the voltage of the main power supply line and the first preset target voltage is greater than a first preset difference at the end of a first preset time range, the main power supply line is turned off; when the difference value between the voltage of the power supply line of the rotor and a second preset target voltage is larger than a second preset difference value at the end of a second preset time range, the power supply line of the rotor is turned off; and when the difference value between the voltage of the power supply line of the stator and the third preset target voltage is greater than a third preset difference value at the end of a third preset time range, the power supply line of the stator is turned off.
The invention also discloses a power distribution system for the CT machine, wherein the CT machine comprises a rotor, a stator and a plurality of other subcomponents, and a total power supply circuit, a rotor power supply circuit, a stator power supply circuit and a plurality of power supply circuits of the other subcomponents of the CT machine are respectively provided with a total power supply sampling circuit, a rotor power supply sampling circuit, a stator power supply sampling circuit and a plurality of power supply sampling circuits of the other subcomponents; respectively acquiring real-time voltages on a power supply line of the rotor, a power supply line of the stator and a power supply line of the other sub-components through the total power supply sampling circuit, the rotor power supply sampling circuit, the stator power supply sampling circuit and the power supply sampling circuits of the other sub-components; the main power switch is closed, and after the voltage of the main power circuit does not exceed a first preset voltage range, the power circuit of the rotor is conducted; after the voltage of the power circuit of the rotor does not exceed a second preset voltage range, the power circuit of the stator is conducted; and after the voltage of the power supply circuit of the stator does not exceed a third preset voltage range, conducting the power supply circuits of the other sub-components.
Preferably, the device further comprises a detection module, wherein the detection module comprises a rotor detection unit, a stator detection unit and a plurality of other sub-component detection units; the rotor detection unit is electrically connected with the rotor to acquire the running state of the rotor; the stator detection unit is electrically connected with the stator to acquire the running state of the stator; the plurality of other sub-component detection units are respectively electrically connected with the plurality of other sub-components to acquire the running states of the other sub-components; after the rotor detection unit detects that the rotor stops running, a power supply circuit of the rotor is switched off; after the stator detection unit detects that the stator stops running, a power supply circuit of the stator is switched off; and after the other sub-component detection unit detects that the other sub-components stop operating, the power supply lines of the other sub-components and the main power supply line are turned off.
Preferably, the power supply circuit of the rotor comprises a rotor power supply inlet and a rotor power supply outlet, and a rotor relay is arranged between the rotor power supply inlet and the rotor power supply outlet; the rotor relay is switched on and off to realize the on and off of a power supply circuit of the rotor; the power supply circuit of the stator comprises a stator power supply inlet and a stator power supply outlet, and a stator relay is arranged between the stator power supply inlet and the stator power supply outlet; the stator relay is switched on and off to realize the conduction and the disconnection of a power supply circuit of the stator; the power supply circuit of the other sub-components comprises a sub-component power supply access port and a sub-component power supply output port, a sub-component relay is arranged between the sub-component power supply access port and the sub-component power supply output port, and the power supply system of the CT machine comprises a plurality of power supply circuits of the other sub-components; the turning on and off of the power supply line of the other sub-component is realized by turning on and off the sub-component relay.
Preferably, the motor further comprises a micro control unit, wherein the micro control unit is electrically connected with the rotor relay, the stator relay and a plurality of the sub-component relays to respectively control the on and off of the rotor relay, the stator relay and the plurality of the sub-component relays; the micro control unit is also electrically connected with the rotor power supply sampling circuit, the stator power supply sampling circuit and the other sub-component power supply sampling circuit so as to obtain real-time voltages on the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuit of the other sub-component; the CT machine further comprises a CT machine operation terminal, and the CT machine operation terminal is connected with the micro control unit through a CAN bus so as to send an operation instruction to the micro control unit or receive power supply information of the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuits of other sub-components.
Preferably, the system further comprises a timing module, wherein the timing module is electrically connected with the micro control unit; when the micro control unit detects that the difference value between the voltage of the main power supply line and a first preset target voltage is larger than a first preset difference value, the micro control unit controls to turn off the main power supply line; when the micro control unit detects that the difference value between the voltage of the power supply line of the rotor and a second preset target voltage is larger than a second preset difference value, the micro control unit controls to turn off the power supply line of the rotor; when the micro control unit detects that the difference value between the voltage of the power line of the stator and a third preset target voltage is larger than a third preset difference value, the micro control unit controls to switch off the power line of the stator.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. the isolation and separate control of the main power circuit of the CT machine, the circuits of the rotor, the stator and other sub-components is realized, the circuits of the rotor, the stator and other sub-components are sequentially conducted under the condition that the voltage of the main power circuit is stable, the power-on time sequence of each component is controllable, the surge impact of the huge voltage and current of the main power supply of the CT machine on the circuits of the rotor, the stator and other sub-components is avoided, and the impact on the power system of a hospital where the CT machine is located is also avoided;
2. by arranging the sampling circuit on each circuit, the power condition of each circuit can be monitored in real time, the sampling circuit is connected with the micro control unit, the real-time power condition is sent to the micro control unit, the micro control unit monitors and distributes the real-time power condition, and when the abnormal power condition occurs, the micro control unit can control the circuit to be switched off so as to protect the whole power system.
Drawings
FIG. 1 is a schematic diagram of a power distribution system for a CT machine according to the present invention;
FIG. 2 is a schematic diagram of a power-up flow of a power distribution method for a CT machine according to the present invention;
fig. 3 is a schematic lower current path diagram of a power distribution method for a CT machine according to the present invention.
Reference numerals: 1-a micro control unit, 2-a CT machine operation terminal, 3-a voltage sampling circuit, 401-a rotor power supply access, 402-a rotor power supply output, 403-a rotor relay, 501-a stator power supply access, 502-a stator power supply output, 503-a stator relay, 601-a first other subcomponent power supply access, 602-a first other subcomponent power supply output, 603-a first other subcomponent relay, 701-an nth other subcomponent power supply access, 702-an nth other subcomponent power supply output, 703-an nth other subcomponent relay.
Detailed Description
The advantages of the invention are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Referring to the attached figure 1, the invention discloses a power distribution system for a CT machine, wherein the CT machine comprises a rotor, a stator and a plurality of other sub-components, a power circuit of the CT machine comprises a main power circuit, a power circuit of the rotor, a power circuit of the stator and a power circuit of the other sub-components, the main power circuit supplies power through a power cabinet, and the main power circuit supplies power to the power circuit of the rotor, the power circuit of the stator and the power circuit of the other sub-components.
Still include voltage sampling circuit 3, it is concrete, on the total power supply circuit of CT machine, on the power supply circuit of rotor, on the power supply circuit of stator, be equipped with total power supply sampling circuit on the power supply circuit of a plurality of other subcomponents respectively, rotor power supply sampling circuit, stator power supply sampling circuit, a plurality of other subcomponent power supply sampling circuit, the power supply circuit to the rotor respectively, the power supply circuit of stator, the power supply circuit of other subcomponents monitors, obtain the power supply circuit of rotor, the power supply circuit of stator, the real-time voltage on the power supply circuit of other subcomponents.
Referring to fig. 2, the power distribution system of the present invention is powered on by the following method:
s1, closing a main power switch, acquiring the power state of a main power circuit by a main power sampling circuit, generating larger power impact on the main power circuit at the closing moment, and conducting the power circuit of the rotor after the voltage of the main power circuit does not exceed a first preset voltage range;
s2, acquiring the power state of the rotor power supply circuit by the rotor sampling circuit, and at the moment that the rotor power supply circuit is closed, because surge impact can be generated on other parts of the system in the process of electrifying high-power parts such as high voltage and inversion in the rotor, the power supply circuit of the stator is conducted after the voltage of the power supply circuit of the rotor does not exceed a second preset voltage range;
and S3, acquiring the power state of the stator power supply circuit by the stator sampling circuit, and conducting the power supply circuits of other sub-components after the voltage of the power supply circuit of the stator does not exceed a third preset voltage range, thereby realizing the electrification of each component of the whole CT machine.
In the above process, the first preset voltage range, the second preset voltage range, and the third preset voltage range are safety ranges of the main power line, the rotor power line, and the stator power line, respectively, and these ranges may be adjusted according to an actual power system, and are not limited herein.
By controlling the power-on time sequence of each component of the CT machine, the surge impact of the huge voltage and current of the main power supply of the CT machine on circuits of a rotor, a stator and other sub-components is avoided, and the impact on an electric power system of a hospital where the CT machine is located is also avoided.
Preferably, the power distribution system further comprises a detection module, wherein the detection module comprises a rotor detection unit, a stator detection unit and a plurality of other sub-component detection units. The rotor detection unit is electrically connected with the rotor to acquire the running state of the rotor; the stator detection unit is electrically connected with the stator to acquire the running state of the stator; the plurality of other sub-component detection units are respectively electrically connected with the plurality of other sub-components to acquire the operating states of the other sub-components.
Referring to fig. 3, the power distribution system of the present invention is powered down by:
s1, after the rotor detection unit detects that the high voltage, inversion, bulb tube and other components of the rotor are normally shut down, the power circuit of the rotor is shut down;
s2, after the stator detection unit detects that the stator stops running, the power circuit of the stator is switched off;
and S3, after the other sub-component detection unit detects that the other sub-components stop operating, the power supply lines of the other sub-components and the main power supply line are turned off, and therefore power-off of all components of the whole CT machine is achieved.
By controlling the power-off time sequence of each part of the CT machine, each part can not be impacted by surge, and the system can cut off the main power supply after all the sub-parts are normally closed. According to the invention, the time sequence control of the power-on process and the time sequence control of the power-off process are combined, so that each component can avoid surge impact in the whole power supply process, and the safety of a power system is enhanced.
Specifically, the power supply line of the rotor includes a rotor power supply inlet 401 and a rotor power supply outlet 402, a rotor relay 403 is arranged between the rotor power supply inlet 401 and the rotor power supply outlet 402, and the rotor power supply line of the rotor is turned on and off by turning on and off the rotor relay 403.
Similarly, the power supply line of the stator comprises a stator power supply inlet 501 and a stator power supply outlet 502, a stator relay 503 is arranged between the stator power supply inlet 501 and the stator power supply outlet 502, and the on and off of the power supply line of the stator are realized by opening and closing the stator relay 503.
The power supply lines of other components in fig. 1 are omitted, the CT machine includes N other subcomponents, the first other subcomponent includes a first subcomponent power inlet 601 and a first subcomponent power outlet 602, a first subcomponent relay 603 is provided between the first subcomponent power inlet 601 and the first subcomponent power outlet 602, and the on and off of the power supply line of the first subcomponent is realized by turning on and off the first relay 603; the Nth other sub-component comprises an Nth sub-component power inlet 701 and an Nth sub-component power outlet 702, an Nth sub-component relay 703 is arranged between the Nth sub-component power inlet 701 and the Nth sub-component power outlet 702, and the connection and disconnection of a power line of the Nth sub-component are realized by opening and closing the Nth relay 703.
When the installation, only need install the relay between the input port and the delivery outlet of each circuit, can realize, simple to operate, and it is convenient to overhaul.
Preferably, the power distribution system further includes a micro control unit 1, the micro control unit 1 is electrically connected to the rotor relay, the stator relay, and the plurality of sub-component relays to control the rotor relay, the stator relay, and the plurality of sub-component relays to be turned on and off, respectively, so as to control the power supply line of the rotor, the power supply line of the stator, and the power supply lines of the plurality of other sub-components to be turned on and off.
The micro control unit 1 is also electrically connected with the rotor power supply sampling circuit, the stator power supply sampling circuit and the power supply sampling circuit of other sub-components to acquire real-time voltages on the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuit of the other sub-components.
The micro control unit 1 and each sampling circuit can be integrated on a circuit board, and the circuit board is connected to a power system of the CT machine to complete circuit transformation, so that the purposes of power-on time sequence control and state monitoring of each part are achieved.
The CT machine further comprises a CT machine operation terminal 2, wherein the CT machine operation terminal 2 is connected with the micro control unit 1 through the CAN bus so as to send operation instructions to the micro control unit 1 or receive power supply information of a power supply circuit of the rotor, a power supply circuit of the stator and power supply circuits of other sub-components. The operator can directly acquire the states of the components on the operation terminal 2 of the CT machine and can operate on the operation terminal 2 of the CT machine to manually control the power-on and power-off of the components.
Preferably, the power distribution system further comprises a timing module, the timing module is electrically connected with the micro control unit 1 and integrated on the circuit board, and the micro control unit 1 can obtain time data through the timely module.
Specifically, in step S1 of the power-on process, when the micro control unit 1 detects that the difference between the voltage of the main power line and the first preset target voltage obtained by the main power sampling circuit is greater than the first preset difference at the end of the first preset time range, the micro control unit 1 determines that the main power line is not stable within the first preset time range, and therefore the micro control unit 1 controls to turn off the main power line to protect the power system. At the moment, the micro control unit 1 sends an abnormal signal to the CT machine operation terminal 2 so as to remind an operator to overhaul the main power supply circuit.
Similarly, in step S2 of the power-on process, when the micro control unit 1 detects that the difference between the voltage of the power line of the rotor and the second preset target voltage obtained by the rotor power sampling circuit is greater than the second preset difference at the end of the second preset time range, the micro control unit 1 determines that the power line of the rotor does not reach stability within the second preset time range, so that the micro control unit 1 controls to turn off the power line of the rotor to protect the power system. At the moment, the micro control unit 1 sends an abnormal signal to the CT machine operation terminal 2 so as to remind an operator to overhaul a power supply circuit of the rotor.
Similarly, in step S3 of the power-on process, when the micro control unit 1 detects that the difference between the voltage of the power line of the stator and the third preset target voltage, which is obtained by the stator power sampling circuit, is greater than the third preset difference at the end of the third preset time range, the micro control unit 1 determines that the power line of the stator does not reach stability within the third preset time range, so that the micro control unit 1 controls to turn off the power line of the stator to protect the power system. At the moment, the micro control unit 1 sends an abnormal signal to the CT machine operation terminal 2 so as to remind an operator to overhaul a power supply circuit of the rotor.
The first preset time range, the second preset time range and the third preset time range are respectively the set stabilization time for the main power circuit, the power circuit of the rotor and the power circuit of the stator, so that the micro control unit 1 can control that when the micro control unit does not reach the stabilization within the preset time range, the power supply is given up, an operator is informed to carry out maintenance, and the power loss or other potential safety hazards caused by the fact that the power distribution system continues to implement the power supply process when the power circuit is abnormal are prevented. The stabilization time is adjustable and can be set on the micro control unit 1 in advance, and the stabilization time can be adjusted according to actual power requirements and application scenes, and is not limited here.
The first preset target voltage, the second preset target voltage and the third preset target voltage are rated voltages of a main power supply, a rotor and a stator respectively, and are generally 220V.
The first preset difference, the second preset difference and the third preset difference are respectively allowed safe fluctuation values of a main power circuit, a power circuit of the rotor and a power circuit of the stator, the fluctuation values are adjustable, the setting is carried out on the micro control unit 1 in advance, the fluctuation values can be adjusted according to an actual electric power system, and the limitation is not carried out.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.
Claims (10)
1. A power distribution method for a CT machine is characterized in that a power-on process of the CT machine comprises the following steps:
acquiring real-time voltages on a total power supply circuit, a power supply circuit of a rotor, a power supply circuit of a stator and power supply circuits of other sub-components except the rotor and the stator of the CT machine;
the main power switch is closed, and after the voltage of the main power circuit does not exceed a first preset voltage range, the power circuit of the rotor is conducted;
after the voltage of the power circuit of the rotor does not exceed a second preset voltage range, the power circuit of the stator is conducted;
and after the voltage of the power supply circuit of the stator does not exceed a third preset voltage range, conducting the power supply circuits of the other sub-components.
2. The power distribution method according to claim 1, wherein the power-down process of the CT machine comprises the steps of:
acquiring the running states of the rotor, the stator and the other sub-components;
after the rotor stops running, a power circuit of the rotor is switched off;
after the stator stops running, a power supply circuit of the stator is switched off;
and after the other sub-components stop operating, the power supply lines of the other sub-components and the main power supply line are turned off.
3. The method of power distribution according to claim 2, wherein the turning on and off of the rotor power line is achieved by turning on and off a rotor relay on the rotor power line;
the on and off of the power supply circuit of the stator are realized by opening and closing a stator relay on the power supply circuit of the stator;
and turning on and off other sub-component relays on the power supply lines of other sub-components to realize the on and off of the power supply lines of other sub-components of the CT machine except the rotor and the stator.
4. The method of power distribution according to claim 1, wherein the opening and closing of the rotor relay, the stator relay, the other component relays is controlled by a micro-control unit;
and the CT machine operation terminal sends an operation instruction to the micro control unit through a wireless network, or receives power supply information of the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuits of the other sub-components.
5. The power distribution method according to claim 1, wherein the main power line is turned off when the voltage of the main power line differs from a first preset target voltage by more than a first preset difference at the end of a first preset time range;
when the difference value between the voltage of the power supply line of the rotor and a second preset target voltage is larger than a second preset difference value at the end of a second preset time range, the power supply line of the rotor is turned off;
and when the difference value between the voltage of the power supply line of the stator and the third preset target voltage is greater than a third preset difference value at the end of a third preset time range, the power supply line of the stator is turned off.
6. A power distribution system for a CT machine is characterized in that the CT machine comprises a rotor, a stator and a plurality of other sub-components, wherein a main power supply circuit, a rotor power supply circuit, a stator power supply circuit and a plurality of other sub-component power supply circuits of the CT machine are respectively provided with a main power supply sampling circuit, a rotor power supply sampling circuit, a stator power supply sampling circuit and a plurality of other sub-component power supply sampling circuits;
respectively acquiring real-time voltages on a power supply line of the rotor, a power supply line of the stator and a power supply line of the other sub-components through the total power supply sampling circuit, the rotor power supply sampling circuit, the stator power supply sampling circuit and the power supply sampling circuits of the other sub-components;
the main power switch is closed, and after the voltage of the main power circuit does not exceed a first preset voltage range, the power circuit of the rotor is conducted;
after the voltage of the power circuit of the rotor does not exceed a second preset voltage range, the power circuit of the stator is conducted;
and after the voltage of the power supply circuit of the stator does not exceed a third preset voltage range, conducting the power supply circuits of the other sub-components.
7. The power distribution system of claim 6, further comprising a detection module comprising a rotor detection unit, a stator detection unit, and a number of other subcomponent detection units; the rotor detection unit is electrically connected with the rotor to acquire the running state of the rotor; the stator detection unit is electrically connected with the stator to acquire the running state of the stator; the plurality of other sub-component detection units are respectively electrically connected with the plurality of other sub-components to acquire the running states of the other sub-components;
after the rotor detection unit detects that the rotor stops running, a power supply circuit of the rotor is switched off;
after the stator detection unit detects that the stator stops running, a power supply circuit of the stator is switched off;
and after the other sub-component detection unit detects that the other sub-components stop operating, the power supply lines of the other sub-components and the main power supply line are turned off.
8. The electrical distribution system of claim 7, wherein the power circuit of the rotor includes a rotor power inlet and a rotor power outlet with a rotor relay disposed therebetween; the rotor relay is switched on and off to realize the on and off of a power supply circuit of the rotor;
the power supply circuit of the stator comprises a stator power supply inlet and a stator power supply outlet, and a stator relay is arranged between the stator power supply inlet and the stator power supply outlet; the stator relay is switched on and off to realize the conduction and the disconnection of a power supply circuit of the stator;
the power supply circuit of the other sub-components comprises a sub-component power supply access port and a sub-component power supply output port, a sub-component relay is arranged between the sub-component power supply access port and the sub-component power supply output port, and the power supply system of the CT machine comprises a plurality of power supply circuits of the other sub-components; the turning on and off of the power supply line of the other sub-component is realized by turning on and off the sub-component relay.
9. The power distribution system of claim 6, further comprising a micro-control unit electrically connected to the rotor relay, the stator relay, a number of the sub-part relays to control the opening and closing of the rotor relay, the stator relay, a number of the sub-part relays, respectively;
the micro control unit is also electrically connected with the rotor power supply sampling circuit, the stator power supply sampling circuit and the other sub-component power supply sampling circuit so as to obtain real-time voltages on the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuit of the other sub-component;
the CT machine further comprises a CT machine operation terminal, and the CT machine operation terminal is connected with the micro control unit through a CAN bus so as to send an operation instruction to the micro control unit or receive power supply information of the power supply circuit of the rotor, the power supply circuit of the stator and the power supply circuits of other sub-components.
10. The power distribution system of claim 9, further comprising a timing module electrically connected to the micro-control unit;
when the micro control unit detects that the difference value between the voltage of the main power supply line and a first preset target voltage is larger than a first preset difference value, the micro control unit controls to turn off the main power supply line;
when the micro control unit detects that the difference value between the voltage of the power supply line of the rotor and a second preset target voltage is larger than a second preset difference value, the micro control unit controls to turn off the power supply line of the rotor;
when the micro control unit detects that the difference value between the voltage of the power line of the stator and a third preset target voltage is larger than a third preset difference value, the micro control unit controls to switch off the power line of the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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