CN109149389A

CN109149389A - Ground connection becomes automatic switching method and device

Info

Publication number: CN109149389A
Application number: CN201811072798.5A
Authority: CN
Inventors: 郭佳才; 徐大勇; 陈涛威; 刘川; 李鸿文; 陈军宏
Original assignee: Guangdong Power Grid Co Ltd; Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2019-01-04
Anticipated expiration: 2038-09-14
Also published as: CN111682533B; CN111682533A; CN109149389B

Abstract

The present invention relates to power supply technique field, a kind of ground connection is provided and becomes automatic switching method and device.Wherein, this method comprises: first, power supply system is detected, the power supply parameter of power supply system is obtained, secondly, judge whether each power supply line's unit gives its corresponding load unit power supply according to power supply parameter, then, when determining that target power supply line unit does not give its corresponding targeted loads unit to power, the operating mode of detection target earth change, finally, the connection relationship of operating mode the adjustment target power supply line unit and ground become according to target earth.Become or change the operating mode of ground connection change by work about electric power personnel disconnection ground connection with existing to adjust power supply line's unit compared with the connection relationship on ground, ground connection provided by the invention becomes the connection relationship of automatic switching method adjust automatically power supply line's unit and ground, improves operating efficiency.

Description

Ground connection becomes automatic switching method and device

Technical field

The present embodiments relate to power supply technique fields, become automatic switching method and dress in particular to a kind of ground connection It sets.

Background technique

In power supply system, the load unit that every main transformer corresponds to electrical connection to it is powered, in order to guarantee ground fault It can quickly isolate, need to be equipped with ground connection in each load unit and become to build earth current circuit.When wherein there is main transformer hair When giving birth to failure or disconnecting because of maintenance, backup auto-activating device can control power supply system and switch to other normal power supplies by above-mentioned main transformer Main transformer gives at least two load units to power simultaneously, since each load unit includes that a ground connection becomes, main transformer switching To the main transformer of other normal power supplies, at least two earthed circuit circuits are had, that is, have at least two grounding points.When power supply is When system breaks down, multiple grounding points can make power supply system generation tripping, and perhaps malfunction leads to equipment damage or accident range Expand.

In the prior art, usually work about electric power personnel disconnect ground connection change or change the operating mode for being grounded and becoming to adjust The connection relationship of power supply line's unit and ground, operating efficiency are very low.

Summary of the invention

A kind of ground connection of being designed to provide of the embodiment of the present invention becomes automatic switching method and device, to solve the prior art Middle work about electric power personnel adjust the low-down problem of connection relationship operating efficiency of power supply line's unit and ground.

To achieve the goals above, technical solution used in the embodiment of the present invention is as follows:

The present invention provides a kind of ground connection to become automatic switching method, for adjusting the ground state of power supply system, the confession Electric system includes multiple power supply modules being sequentially connected electrically, each power supply module include power supply line's unit and with it is described The load unit of power supply line's unit electrical connection, each load unit include that ground connection becomes；The described method includes: to described Power supply system is detected, and the power supply parameter of the power supply system is obtained；Each power supply is judged according to the power supply parameter Whether line unit gives its corresponding load unit power supply；When judgement target power supply line unit does not give its corresponding target When load unit is powered, the operating mode of detection target earth change；Described in the operating mode adjustment become according to the target earth The connection relationship of target power supply line unit and ground.

The present invention also provides a kind of ground connection to become automatic switching control equipment, described for adjusting the ground state of power supply system Power supply system includes multiple power supply modules being sequentially connected electrically, each power supply module include power supply line's unit and with institute The load unit of power supply line's unit electrical connection is stated, each load unit includes that ground connection becomes；Described device includes: parameter Detection module obtains the power supply parameter of the power supply system for detecting to the power supply system；Power supply judgment module, For judging whether each power supply line's unit gives its corresponding described load unit power supply according to the power supply parameter；Mould Formula detection module, for detecting target when determining that target power supply line unit does not give its corresponding targeted loads unit to power It is grounded the operating mode become；Execution module, the operating mode for becoming according to the target earth adjust the target supply lines The connection relationship of road unit and ground.

Compared with the prior art, a kind of ground connection provided in an embodiment of the present invention becomes automatic switching method and device, is to power supply System is detected, and the power supply parameter of power supply system is obtained, and judges whether each power supply line's unit is right to its according to power supply parameter The load unit power supply answered；When determining that target power supply line unit does not give its corresponding targeted loads unit to power, mesh is detected The operating mode become to tag splice；The operating mode adjustment target power supply line unit and the connection on ground become according to target earth closes System.The operating mode that ground connection becomes or change ground connection becomes is disconnected to adjust power supply line's list by work about electric power personnel with existing For member compared with the connection relationship on ground, ground connection provided by the invention becomes automatic switching method adjust automatically power supply line's unit and ground Connection relationship, improve operating efficiency.

To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.

Fig. 1 shows the structural schematic diagram of power supply system provided by the embodiment of the present invention.

Fig. 2 shows the block diagrams of electronic equipment provided by the embodiment of the present invention.

Fig. 3 shows ground connection provided by the embodiment of the present invention and becomes automatic switching method flow chart.

Fig. 4 be Fig. 2 shows step S101 sub-step flow chart.

Fig. 5 be Fig. 2 shows step S101 sub-step flow chart.

Fig. 6 is the sub-step flow chart of the step S101 shown in Fig. 3.

Fig. 7 is the sub-step flow chart of the step S102 shown in Fig. 3.

Fig. 8 is the sub-step flow chart of the step S102 shown in Fig. 3.

Fig. 9 is the sub-step flow chart of the step S102 shown in Fig. 3.

Figure 10 is the sub-step flow chart of the step S103 shown in Fig. 3.

Figure 11 is the sub-step flow chart of the step S104 shown in Fig. 3.

Figure 12 shows the block diagram that ground connection provided in an embodiment of the present invention becomes automatic switching control equipment.

Icon: 20- power supply system；The first power supply module of 21-；The first power supply line of 210- unit；The first main transformer of 211- becomes Height switch；The power supply main transformer of 212- first；The first main transformer of 213- is lower switch；The first load unit of 220-；The ground connection of 221- first becomes； The ground connection of 2211- first gets higher switch；The first grounding switch of 2213-；222- first is loaded；The first block switch of 22-；23- Two power supply modules；The second power supply line of 230- unit；The second main transformer of 231- gets higher switch；The power supply main transformer of 232- second；233- Two main transformers are lower switch；The second load unit of 240-；The ground connection of 241- second becomes；The ground connection of 2411- second gets higher switch；2413- Second grounding switch；242- second is loaded；The second block switch of 24-；25- third power supply module；250- third power supply line is single Member；251- third main transformer gets higher switch；252- third power supply main transformer；253- third main transformer is lower switch；The load of 260- third is single Member；261- third ground connection becomes；2611- third ground connection gets higher switch；2613- third grounding switch；The load of 262- third；10- Electronic equipment；101- memory；102- storage control；103- processor；104- Peripheral Interface；105- display screen；300- connects Ground becomes automatic switching control equipment；301- parameter detection module；302- power supply judgment module；303- mode detection module；304- is executed Module.

Specific embodiment

Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.

Electronic equipment 10 and power supply system 20 connect, wherein and power supply system 20 can be with electronic equipment 10 and be electrically connected, It can be communication connection.Electronic equipment 10 is used to adjust the ground state of power supply system 20.

Referring to Fig. 1, power supply system 20 includes multiple power supply modules and at least one block switch, two neighboring power supply mould Block is electrically connected by block switch, and block switch is sequentially connected electrically for realizing multiple power supply modules.

Each power supply module includes the load list of power supply line's unit and electrical connection corresponding with power supply line's unit Member.Each power supply line's unit includes that main transformer gets higher switch, power supply main transformer, main transformer are lower switch and power supply line, supply lines Road gets higher switch, power supply main transformer and main transformer for realizing main transformer and is lower being sequentially connected electrically of switch.The main transformer switch that is lower passes through confession Electric line is electrically connected with load unit.It should be noted that main transformer, which gets higher switch, can be the power supply on high-tension side breaker of main transformer, Main transformer be lower switch can be power supply main transformer low-pressure side breaker.Electronic equipment 10 is used to adjust the ground connection shape of power supply system 20 The connection relationship of state, i.e. power supply line's unit and ground.

Each load unit include it is multiple load, ground connection become and loaded line, it is multiple load and ground connection become with load Route electrical connection.Multiple loads and the flexible overload route of ground connection are electrically connected with power supply line's unit.Each ground connection becomes The ground connection being sequentially connected electrically gets higher switch, ground connection main transformer, grounding switch and ground resistance, one end of ground resistance and earthing Lock electrical connection, the other end of ground resistance are connected to ground.It should be noted that ground connection get higher switch can be loaded line and The switch being grounded between main transformer, for controlling connection or disconnection between ground connection main transformer and loaded line.

It in embodiments of the present invention, include that 3 power supply modules are illustrated with power supply system 20.

3 power supply modules are respectively the first power supply module 21, the second power supply module 23 and third power supply module 25, and first supplies Electric module 21 and the second power supply module 23 are electrically connected by the first block switch 22, the second power supply module 23 and third power supply module 25 are electrically connected by the second block switch 24.

First power supply module 21 includes first power supply line's unit 210 and the first load unit 220, and the first power supply line is single Member 210 and the first load unit 220 are electrically connected, and first power supply line's unit 210 includes that the first main transformer gets higher switch 211, first Power supply main transformer 212, the first main transformer are lower switch 213 and the first power supply line, and the first main transformer gets higher the power supply of switch 211, first and leads Become 212 and first the main transformer switch 213 that is lower be sequentially connected electrically by the first power supply line, the first main transformer switch 213 that is lower passes through First power supply line is electrically connected with the first load unit 220.First load unit 220 includes that the first ground connection becomes 221, multiple first Load 222 and the first loaded line, multiple first loads 222 and the first ground connection become 221 and are electrically connected with the first loaded line, more A first load 222 and the first ground connection become 221 the first supply lines for passing through the first loaded line and first power supply line's unit 210 Road electrical connection.It includes that the first ground connection being sequentially connected electrically gets higher the ground connection of switch 2211, first main transformer, that first ground connection, which becomes 221, One grounding switch 2213 and the first ground resistance, one end of the first ground resistance are electrically connected with the first grounding switch 2213, and first The other end of ground resistance is connected to ground, and the first ground connection gets higher switch 2211 and is electrically connected with the first loaded line.

Second power supply module 23 includes second power supply line's unit 230 and the second load unit 240, and the second power supply line is single Member 230 and the second load unit 240 are electrically connected, and second power supply line's unit 230 includes that the second main transformer gets higher switch 231, second Power supply main transformer 232, the second main transformer are lower switch 233 and the second power supply line, and the second main transformer gets higher the power supply of switch 231, second and leads Become 232 and second the main transformer switch 233 that is lower be sequentially connected electrically by the second power supply line, the second main transformer switch 233 that is lower passes through Second power supply line is electrically connected with the second load unit 240.Second load unit 240 includes that the second ground connection becomes 241, multiple second Load 242 and the second loaded line, multiple second loads 242 and the second ground connection become 241 and are electrically connected with the second loaded line, more A second load 242 and the second ground connection become 241 the second supply lines for passing through the second loaded line and second power supply line's unit 230 Road electrical connection.It includes that the second ground connection being sequentially connected electrically gets higher the ground connection of switch 2411, second main transformer, that second ground connection, which becomes 241, Two grounding switchs 2413 and the second ground resistance, one end of the second ground resistance are electrically connected with the second grounding switch 2413, and second The other end of ground resistance is connected to ground, and the second ground connection gets higher switch 2411 and is electrically connected with the second loaded line.

First block switch 22 is electrically connected with the first power supply module 21 and the second power supply module 23, the first block switch 22 One end be electrically connected between first power supply line's unit 210 of the first power supply module 21 and the first load unit 220, first point The other end of Duan Kaiguan 22 is electrically connected to the second power supply line's unit 230 and the second load unit 240 of the second power supply module 23 Between.

Third power supply module 25 includes third power supply line unit 250 and third load unit 260, and third power supply line is single Member 250 and third load unit 260 are electrically connected, and third power supply line unit 250 includes that third main transformer gets higher switch 251, third Power supply main transformer 252, third main transformer are lower switch 253 and third power supply line, and third main transformer gets higher switch 251, third power supply is led Become 252 and the third main transformer switch 253 that is lower be sequentially connected electrically by third power supply line, the third main transformer switch 253 that is lower passes through Third power supply line is electrically connected with third load unit 260.Third load unit 260 includes that third ground connection becomes 261, multiple thirds Load 262 and third loaded line, multiple third loads 262 and third ground connection become 261 and are electrically connected with third loaded line, more A third load 262 and third ground connection become the 261 third supply lines for passing through third loaded line and third power supply line unit 250 Road electrical connection.It includes that the thirds ground connection being sequentially connected electrically gets higher switch 2611, third is grounded main transformer, that third ground connection, which becomes 261, One end of three grounding switchs 2613 and third ground resistance, third ground resistance is electrically connected with third grounding switch 2613, third The other end of ground resistance is connected to ground, and third ground connection gets higher switch 2611 and is electrically connected with third loaded line.

Second block switch 24 is electrically connected with the second power supply module 23 and third power supply module 25, the second block switch 24 One end be electrically connected between second power supply line's unit 230 of the second power supply module 23 and the second load unit 240, second point The other end of Duan Kaiguan 24 is electrically connected to the third power supply line unit 250 and third load unit 260 of third power supply module 25 Between.

Referring to figure 2., Fig. 2 shows the block diagrams of electronic equipment 10 provided in an embodiment of the present invention.Electronic equipment 10 may be, but not limited to, smart phone, tablet computer, pocket computer on knee, vehicle-mounted computer, personal digital assistant (personal digital assistant, PDA) etc..The electronic equipment 10 includes memory 101, storage control 102, processor 103, Peripheral Interface 104, display screen 105 and ground connection become automatic switching control equipment 300.

The memory 101, storage control 102, processor 103, Peripheral Interface 104 and each element phase of display screen 105 It is directly or indirectly electrically connected between mutually, to realize the transmission or interaction of data.For example, these elements can pass through between each other One or more communication bus or signal wire, which are realized, to be electrically connected.It includes at least one that the ground connection, which becomes automatic switching control equipment 300, The behaviour of the electronic equipment 10 can be stored in the memory 101 or is solidificated in the form of software or firmware (firmware) Make the software function module in system (operating system, OS).The processor 103 is for executing in memory 101 The executable module of storage, such as the ground connection become software function module or computer program that automatic switching control equipment 300 includes.

Wherein, memory 101 may be, but not limited to, random access memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM), Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc.. Wherein, memory 101 is for storing program, and the processor 103 executes described program, this hair after receiving and executing instruction Method performed by the server for the flow definition that bright embodiment discloses can be applied in processor 103, or by processor 103 realize.

Processor 103 can be a kind of IC chip, have signal handling capacity.Above-mentioned processor 103 can be with It is general processor 103, including central processing unit (Central Processing Unit, CPU), network processing unit (Network Processor, NP), speech processor and video processor etc.；It can also be digital signal processor, dedicated It is integrated circuit, field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete Hardware component.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General 3 can To be that microprocessor or the processor 103 are also possible to any conventional processor 103 etc..

Peripheral Interface 104 is used to couple processor 103 and memory 101 for various input/output devices.Some In embodiment, Peripheral Interface 104, processor 103 and storage control 102 can be realized in one single chip.Other one In a little examples, they can be realized by independent chip respectively.

It is logical specifically to may be, but not limited to, user for realizing the interaction between user and electronic equipment 10 for display screen 105 It crosses the input of display screen 105 instruction and display screen 105 shows electronic document.

Referring to Fig. 3, Fig. 3, which shows ground connection provided in an embodiment of the present invention, becomes automatic switching method flow chart.Ground connection becomes Automatic switching method the following steps are included:

Step S101 detects power supply system 20, obtains the power supply parameter of power supply system 20.

In embodiments of the present invention, power supply parameter may be, but not limited to, the first of power supply line's unit of power supply module Current value, the second current value of load unit, the third current value of block switch and power supply line's unit main transformer be lower switch First switch state.

Referring to Fig. 4, step S101 can also include following sub-step:

Sub-step S1011 detects the electric current of each power supply line, obtains the first electric current of each power supply line Value.

In first embodiment of the invention, the first current value can be the confession of power supply line's unit of each power supply module The current value of electric line.Power supply line can be that connection main transformer gets higher switch, power supply main transformer, main transformer are lower the route of switch.Example Such as, the electric current of each power supply line is detected, obtains the first current value of each power supply line, can be and supply first The electric current of first power supply line of first power supply line's unit 210 is detected in electric module 21, obtains the first power supply line First current value；The electric current of second power supply line of second power supply line's unit 230 in second power supply module 23 is detected, Obtain the first current value of the second power supply line；Third power supply to third power supply line unit 250 in third power supply module 25 The electric current of route is detected, and the first current value of third power supply line is obtained.

Sub-step S1012 detects the electric current of each loaded line, obtains the second electric current of each loaded line Value.

In first embodiment of the invention, the second current value can be the load line of the load unit of each power supply module The current value on road.Loaded line can be while connecting the route that multiple loads become with ground connection, since each loaded line is same When to multiple loads and the change of ground connection are connected to, the electric current of loaded line is total current, i.e., flows in same load unit Enter the electric current of multiple loads and flows into the total electric current for the electric current that ground connection becomes.For example, the electric current to each loaded line carries out Detection, obtain each loaded line the second current value can be to the first load unit 220 in the first power supply module 21 the The electric current of one loaded line is detected, and the second current value of the first loaded line is obtained；To in the second power supply module 23 second The electric current of second loaded line of load unit 240 is detected, and the second current value of the second loaded line is obtained；Third is supplied The third loaded line electric current of third load unit 260 is detected in electric module 25, obtains the second electricity of third loaded line Flow valuve.

It should be noted that in other embodiments of the invention, the execution of sub-step S1011 and sub-step S1012 are suitable Sequence can exchange, or also be performed simultaneously sub-step S1011 and sub-step S1012.

Referring to Fig. 5, step S101 can also include following sub-step:

Sub-step S1013 detects the be lower switch state of switch of each main transformer, obtains each main transformer and is lower switch First switch state.

In second embodiment of the invention, first switch state can be power supply line's unit of each power supply module Main transformer is lower the switch state of switch, wherein first switch state includes disconnecting and closure.For example, being lower out to each main transformer The switch state of pass is detected, and obtaining the be lower first switch state of switch of each main transformer can be to the first power supply module 21 In the be lower switch state of switch 213 of the first main transformer of first power supply line's unit 210 detected, obtain the first main transformer and be lower The first switch state of switch 213；It is lower switch to the second main transformer of second power supply line's unit 230 in the second power supply module 23 233 switch state is detected, and is obtained the second main transformer and is lower the first switch state of switch 233；To third power supply module 25 The be lower switch state of switch 253 of the third main transformer of middle third power supply line unit 250 is detected, and is obtained third main transformer and is lower The first switch state of switch 253.

Sub-step S1014 detects the electric current of each loaded line, obtains the second electric current of each loaded line Value.

In a second embodiment of the present invention, the second current value can be the load of the load unit of each power supply module The current value of route.Loaded line can be while connecting the route that multiple loads become with ground connection, since each loaded line is equal Simultaneously to multiple loads and a ground connection change are connected to, the electric current of loaded line is total current, i.e., in same load unit It flows into the electric current of multiple loads and flows into the total electric current for the electric current that ground connection becomes.For example, to the electric current of each loaded line into Row detection, the second current value for obtaining each loaded line can be to the first load unit 220 in the first power supply module 21 The electric current of first loaded line is detected, and the second current value of the first loaded line is obtained；To in the second power supply module 23 The electric current of second loaded line of two load units 240 is detected, and the second current value of the second loaded line is obtained；To third The third loaded line electric current of third load unit 260 is detected in power supply module 25, obtains the second of third loaded line Current value.

It should be noted that in other embodiments of the invention, the execution of sub-step S1013 and sub-step S1014 are suitable Sequence can exchange, or also be performed simultaneously sub-step S1013 and sub-step S1014.

Referring to Fig. 6, step S101 can also include following sub-step:

Sub-step S1015 detects the electric current of each loaded line, obtains the second electric current of each loaded line Value.

In third embodiment of the invention, the second current value can be the load line of the load unit of each power supply module The current value on road.Loaded line can be while connecting the route that multiple loads become with ground connection, since each loaded line is same When to multiple loads and the change of ground connection are connected to, the electric current of loaded line is total current, i.e., flows in same load unit Enter the electric current of multiple loads and flows into the total electric current for the electric current that ground connection becomes.For example, the electric current to each loaded line carries out Detection, obtain each loaded line the second current value can be to the first load unit 220 in the first power supply module 21 the The electric current of one loaded line is detected, and the second current value of the first loaded line is obtained；To in the second power supply module 23 second The electric current of second loaded line of load unit 240 is detected, and the second current value of the second loaded line is obtained；Third is supplied The third loaded line electric current of third load unit 260 is detected in electric module 25, obtains the second electricity of third loaded line Flow valuve.

Sub-step S1016 detects the electric current of each block switch, obtains the third electric current of each block switch Value.

In third embodiment of the invention, third current value can be the current value of each block switch.To each point The electric current of Duan Kaiguan is detected, and the third current value for obtaining each block switch can be understood as to connecting the first power supply module 21 and second the electric current of the first block switch 22 of power supply module 23 detected, obtain the third electric current of the first block switch 22 Value；The electric current of the second block switch 24 of the second power supply module 23 of connection and third power supply module 25 is detected, obtains the The third current value of two-section switch 24.

It should be noted that in other embodiments of the invention, the execution of sub-step S1015 and sub-step S1016 are suitable Sequence can exchange, or also be performed simultaneously sub-step S1015 and sub-step S1016.

Step S102 judges whether each power supply line's unit gives its corresponding load unit power supply according to power supply parameter.

In embodiments of the present invention, judge whether each power supply line's unit can be managed to its corresponding load unit power supply Solution is judge whether first power supply line's unit 210 gives the power supply of the first load unit 220, and whether second power supply line's unit 230 Whether the power supply of third load unit 260 be given to the power supply of the second load unit 240 and third power supply line unit 250.

Referring to Fig. 7, step S102 is also in the step S102 corresponding with above-mentioned sub-step S1011 and sub-step S1012 May include following sub-step:

Sub-step S1021 judges whether power supply line's unit is corresponding to its according to the first current value and the second current value Load unit power supply.

In first embodiment of the invention, according to the first current value and the second current value, judge that power supply line's unit is It is no to can be understood as judging the first power supply line according to the first current value and the second current value to its corresponding load unit power supply Whether unit 210 powers to the first load unit 220, whether second power supply line's unit 230 supplies to the second load unit 240 Whether electricity, third power supply line unit 250 power to third load unit 260.For example, according in the first power supply module 21 first First load unit 220 in first current value of the first power supply line of power supply line's unit 210 and the first power supply module 21 Second current value of the first loaded line judges whether first power supply line's unit 210 powers to the first load unit 220；Foundation First current value of the second power supply line of second power supply line's unit 230 and the second power supply module 23 in second power supply module 23 In the second current value of the second loaded line of the second load unit 240 judge second power supply line's unit 230 whether to second Load unit 240 is powered；The first electricity according to the third power supply line of third power supply line unit 250 in third power supply module 25 Second current value of the third loaded line of third load unit 260 judges third supply lines in flow valuve and third power supply module 25 Whether road unit 250 powers to third load unit 260.

Sub-step S1022, when the first current value and unequal the second current value, then determine power supply line's unit not to Its corresponding load unit power supply.

In first embodiment of the invention, when the first current value and unequal the second current value, then the power supply is determined Line unit not can be understood as to its corresponding load unit power supply when first power supply line's unit in the first power supply module 21 First loaded line of the first load unit 220 in first current value of 210 the first power supply line and the first power supply module 21 The second current value it is unequal when, then determine first power supply line's unit 210 not to the first load unit 220 power；When second In power supply module 23 in first current value of the second power supply line of second power supply line's unit 230 and the second power supply module 23 When second current value of the second loaded line of two load units 240 is unequal, then determine second power supply line's unit 230 not to The power supply of second load unit 240；When first of the third power supply line of third power supply line unit 250 in third power supply module 25 When second current value of the third loaded line of third load unit 260 is unequal in current value and third power supply module 25, then Determine that third power supply line unit 250 is not powered to third load unit 260.

Referring to Fig. 8, step S102 is also in the step S102 corresponding with above-mentioned sub-step S1013 and sub-step S1014 May include following sub-step:

Sub-step S1023 judges whether power supply line's unit gives its correspondence according to first switch state and the second current value Load unit power supply.

In second embodiment of the invention, according to first switch state and the second current value, power supply line's unit is judged Whether can be understood as judging the first power supply according to first switch state and the second current value to its corresponding load unit power supply Whether line unit 210 powers to the first load unit 220, whether second power supply line's unit 230 is to the second load unit 240 Whether power supply, third power supply line unit 250 power to third load unit 260.For example, according in the first power supply module 21 the First main transformer of one power supply line's unit 210 be lower switch 213 first switch state and the first power supply module 21 in it is first negative Whether the second current value of the first loaded line of carrier unit 220 judges first power supply line's unit 210 to the first load unit 220 power supplies；The second main transformer according to second power supply line's unit 230 in the second power supply module 23, which is lower, the first of switch 233 to be opened Second current value of the second loaded line of the second load unit 240 judges the second power supply in off status and the second power supply module 23 Whether line unit 230 powers to the second load unit 240；According to third power supply line unit 250 in third power supply module 25 Third main transformer be lower switch 253 first switch state and third load unit 260 in third power supply module 25 third it is negative The second current value for carrying route judges whether third power supply line unit 250 powers to third load unit 260.

Sub-step S1024 then sentences when first switch state is disconnection and the second current value is greater than the first pre-set current value Fixed power supply line's unit does not give its corresponding load unit power supply.

In second embodiment of the invention, when first switch state is disconnection and the second current value is greater than the first default electricity When flow valuve, then determine that power supply line's unit is not powered to its corresponding load unit.First pre-set current value can be, but not It is limited to 0,0.01,0.05 etc., the second current value, which is greater than the first pre-set current value, indicates the corresponding load unit of the second current value Loaded line has electric current.It can be understood as being lower when the first main transformer of first power supply line's unit 210 in the first power supply module 21 The first switch state of switch 213 is the first loaded line of the first load unit 220 in disconnection and the first power supply module 21 When second current value is greater than the first pre-set current value, then determine that first power supply line's unit 210 is not supplied to the first load unit 220 Electricity；When the be lower first switch state of switch 233 of the second main transformer of second power supply line's unit 230 in the second power supply module 23 is It disconnects and second current value of the second loaded line of the second load unit 240 is greater than the first default electricity in the second power supply module 23 When flow valuve, then determine that second power supply line's unit 230 is not powered to the second load unit 240；When in third power supply module 25 The third main transformer of three power supply line's units 250 be lower switch 253 first switch state for disconnect and third power supply module 25 in When second current value of the third loaded line of third load unit 260 is greater than the first pre-set current value, then determine that third is powered Line unit 250 is not powered to third load unit 260.

Referring to Fig. 9, step S102 is also in the step S102 corresponding with above-mentioned sub-step S1015 and sub-step S1016 May include following sub-step:

Sub-step S1025 judges whether power supply line's unit is corresponding to its according to the second current value and third current value Load unit power supply.

In third embodiment of the invention, whether power supply line's unit is judged according to the second current value and third current value It can be understood as judging the first power supply line list according to the second current value and third current value to its corresponding load unit power supply Whether member 210 powers to the first load unit 220, whether second power supply line's unit 230 powers to the second load unit 240, Whether third power supply line unit 250 powers to third load unit 260.For example, negative according in the first power supply module 21 first The third current value of second current value of the first loaded line of carrier unit 220 and the first block switch 22 judges the first supply lines Whether road unit 210 powers to the first load unit 220；Second according to the second load unit 240 in the second power supply module 23 The third current value of second current value of loaded line, the third current value of the first block switch 22 and the second block switch 24 is sentenced Whether disconnected second power supply line's unit 230 powers to the second load unit 240；It is single according to third load in third power supply module 25 The second current value of third loaded line and the third current value of the second block switch 24 of member 260 judge third power supply line list Whether member 250 powers to third load unit 260.

Sub-step S1026 then sentences when the second current value is equal with third current value and is all larger than the second pre-set current value Fixed power supply line's unit does not give its corresponding load unit power supply.

In third embodiment of the invention, when the second current value is equal with third current value and is all larger than the second default electricity When flow valuve, then determine that power supply line's unit is not powered to its corresponding load unit.Second pre-set current value can be, but not It is limited to 0,0.01,0.05 etc., the second current value and third current value, which are all larger than the second pre-set current value, indicates the second current value pair The loaded line for the load unit answered has electric current, and the corresponding block switch of third current value has electric current.It can be understood as when first The third of second current value of the first loaded line of the first load unit 220 and the first block switch 22 electricity in power supply module 21 Flow valuve is equal and when being all larger than the second pre-set current value, then determines first power supply line's unit 210 not to the first load unit 220 Power supply；When the second current value of the second loaded line of the second load unit 240 in the second power supply module 23 and the first segmentation are opened Close 22 third current value (or third current value of the second block switch 24) it is equal and when being all larger than the second pre-set current value, Then determine that second power supply line's unit 230 is not powered to the second load unit 240；When third load is single in third power supply module 25 Second current value of the third loaded line of the member 260 and third current value of the second block switch 24 is equal and to be all larger than second pre- If when current value, then determining that third power supply line unit 250 is not powered to third load unit 260.

Step S103 detects mesh when determining that target power supply line unit does not give its corresponding targeted loads unit to power The operating mode become to tag splice.

In embodiments of the present invention, when power supply line's unit does not give its corresponding load unit to power, then by the confession Electric line unit is confirmed as target power supply line unit, which is confirmed as targeted loads list Member, the ground connection for including in targeted loads unit, which becomes, is confirmed as target earth change.Since each load unit includes a ground connection Become, then the ground connection for including in targeted loads unit is become and be confirmed as target earth change.For example, first power supply line's unit 210 is not It powers to the first load unit 220, then first power supply line's unit 210 is confirmed as target power supply line unit, the first load Unit 220 is confirmed as targeted loads unit, and the ground connection for including in targeted loads unit, which becomes, is confirmed as target earth change.Target earth The operating mode of change includes ground connection change mode, stands with change mode and ground connection change and station change mode.

Referring to Fig. 10, step S103 can also include following sub-step:

Sub-step S1031 detects the switch state of target earth disconnecting link, and obtain target earth disconnecting link second opens Off status, wherein second switch state includes switch closing and switch opening.

In embodiments of the present invention, the grounding switch in the target earth change of targeted loads unit is confirmed as target earth Disconnecting link.Second switch state can be the switch state of target earth disconnecting link, wherein second switch state includes separating brake and conjunction Lock.For example, when first power supply line's unit 210 is not powered to the first load unit 220, first power supply line's unit 210 It is confirmed as target power supply line unit, the first load unit 220 is confirmed as targeted loads unit, the first ground connection is become 221 really Think that target earth becomes, the first grounding switch 2213 is confirmed as target earth disconnecting link, to the switch state of target earth disconnecting link It is detected, the second switch state for obtaining target earth disconnecting link can be understood as switch state to the first grounding switch 2213 It is detected, obtains the second switch state of the first grounding switch 2213；When second power supply line's unit 230 is not to the second load When unit 240 is powered, second power supply line's unit 230 is confirmed as target power supply line unit, really the second load unit 240 Think targeted loads unit, the second ground connection is become 241 and is confirmed as target earth change, the second grounding switch 2413 is confirmed as target Grounding switch detects the switch state of target earth disconnecting link, and the second switch state for obtaining target earth disconnecting link can be with It is interpreted as detecting the switch state of the second grounding switch 2413, obtains the second switch shape of the second grounding switch 2413 State；When third power supply line unit 250 is not powered to third load unit 260, third power supply line unit 250 is confirmed as Third load unit 260 is confirmed as targeted loads unit by target power supply line unit, and third ground connection is become 261 and is confirmed as mesh Become to tag splice, third grounding switch 2613 is confirmed as target earth disconnecting link, the switch state of target earth disconnecting link is examined It surveys, the second switch state for obtaining target earth disconnecting link can be understood as examining the switch state of third grounding switch 2613 It surveys, obtains the second switch state of third grounding switch 2613.

The operating mode that target earth becomes is determined as station change when second switch state is separating brake by sub-step S1032 Mode.

In embodiments of the present invention, operating mode includes ground connection change mode, and standing to use change mode and be grounded becomes and stand with change mould Formula.When second switch state is separating brake, the operating mode that target earth becomes is determined as station can be understood as working as with change mode When target earth disconnecting link is the first grounding switch 2213, the switch state of the first grounding switch 2213 is separating brake, then connects first The operating mode that ground becomes 221 is determined as station change mode；When target earth disconnecting link is the second grounding switch 2413, the second ground connection The switch state of disconnecting link 2413 is separating brake, then the operating mode that the second ground connection becomes 241 is determined as station change mode；When target connects When ground disconnecting link is third grounding switch 2613, the switch state of third grounding switch 2613 is separating brake, then third ground connection is become 261 Operating mode be determined as station change mode.

Sub-step S1033, the electric current become to target earth detect, and obtain the 4th current value of target earth change.

In embodiments of the present invention, the 4th current value, which can be, flows into the current value that target earth becomes.Target earth is become Electric current detected, obtain target earth change the 4th current value can be understood as when target earth become the first ground connection change When 221, the electric current for becoming 221 to the ground connection of inflow first is detected, and obtains the 4th current value that the first ground connection becomes 221；Work as target When ground connection becomes the second ground connection change 241, the electric current for becoming 241 to the ground connection of inflow second is detected, and is obtained the second ground connection and is become 241 4th current value；When target earth becomes third ground connection change 261, the electric current for flowing into third ground connection change 261 is detected, is obtained Third ground connection becomes 261 the 4th current value.

Sub-step S1034, when the 4th current value is greater than third pre-set current value, the operating mode that target earth is become is true It is set to ground connection and becomes simultaneous station change mode.

In embodiments of the present invention, third pre-set current value can be user according to the actual situation and the current threshold of setting The operating mode that target earth becomes is determined as being grounded by value when the 4th current value is greater than third pre-set current value (for example, 5A) Become and stand and uses change mode.It is to be understood that first ground connection becomes 221 the 4th electricity when target earth becomes the first ground connection change 221 Flow valuve is greater than third pre-set current value, then the operating mode that the first ground connection becomes 221 is determined as ground connection change and station change mode；When When target earth becomes the second ground connection change 241, the 4th current value that the second ground connection becomes 241 is greater than third pre-set current value, then will The operating mode that second ground connection becomes 241 is determined as ground connection and becomes simultaneous station change mode；Become 261 when target earth becomes third ground connection When, the 4th current value that third ground connection becomes 261 is greater than third pre-set current value, then the operating mode for third ground connection being become 261 is true It is set to ground connection and becomes simultaneous station change mode.

Sub-step S1035, when the 4th current value is less than or equal to pre-set current value, by the operating mode of target earth change It is determined as being grounded change mode.

In embodiments of the present invention, when the 4th current value is not more than (being less than or equal to) third pre-set current value, by mesh The operating mode become to tag splice is determined as being grounded change mode.It is to be understood that when target earth becomes the first ground connection change 221, The 4th current value that first ground connection becomes 221 is not more than third pre-set current value, then determines the operating mode that the first ground connection becomes 221 To be grounded change mode；When target earth, which becomes the second ground connection, becomes 241, the second ground connection becomes 241 the 4th current value no more than the Three pre-set current values then are determined as the operating mode that the second ground connection becomes 241 to be grounded change mode；It is connect when target earth becomes third When ground becomes 261, the 4th current value that third ground connection becomes 261 is not more than third pre-set current value, then third ground connection is become to 261 work Operation mode is determined as being grounded change mode.

Step S104, the connection relationship according to operating mode adjustment target power supply line unit and ground that target earth becomes.

In embodiments of the present invention, target power supply line unit is become and ground phase by the target earth of targeted loads unit Even.The connection relationship of the operating mode adjustment target power supply line unit and ground that become according to target earth can be understood as working as target When being grounded the operating mode become as ground connection change mode, disconnects ground connection and become, that is, be disconnected the connection of target power supply line unit and ground； When the operating mode that target earth becomes becomes simultaneous station change mode into ground connection, disconnects ground connection and become, that is, be disconnected target power supply line The connection of unit and ground；When the operating mode that target earth becomes is station change mode, keeps the original station of ground connection change to use and become mould Formula.

Figure 11 is please referred to, step S104 can also include following sub-step:

Sub-step S1041, when the operating mode that target earth becomes is ground connection change mode, the ground connection of control target earth change Switch is got higher to disconnect.

In embodiments of the present invention, when the operating mode that target earth becomes is ground connection change mode, control target earth becomes Ground connection get higher switch disconnect, that is, be disconnected target power supply line unit and ground connection.It is to be understood that working as target earth Becoming the first ground connection and becomes 221, the first ground connection becomes 221 operating mode when being ground connection change mode, and the of the first ground connection of control change 221 One ground connection gets higher the disconnection of switch 2211, that is, is disconnected the connection of the first power supply line's unit 210 and ground；When target earth becomes Second ground connection becomes 241, and the second ground connection becomes 241 operating mode when being ground connection change mode, and the second ground connection of control change 241 second connects Ground gets higher the disconnection of switch 2411, that is, is disconnected the connection of the second power supply line's unit 230 and ground；When target earth becomes third Ground connection becomes 261, when third ground connection becomes 261 operating mode as ground connection change mode, and the third that control third ground connection becomes 261, which is grounded, to be become The disconnection of switch 2611 is got higher, that is, is disconnected the connection of third power supply line unit 250 and ground.

Sub-step S1042 controls target earth when the operating mode that target earth becomes becomes simultaneous station change mode into ground connection The ground connection of change gets higher switch and disconnects, and after being delayed, control target earth disconnecting link is disconnected, then is controlled ground connection and got higher switch and close It closes.

In embodiments of the present invention, when the operating mode that target earth becomes becomes into ground connection and station change mode, mesh is controlled The ground connection become to tag splice gets higher switch and disconnects, and after being delayed, control target earth disconnecting link is disconnected, then controls to be grounded to become and get higher out It closes and closes.It realizes that the operating mode for becoming target earth is become by ground connection and change mode adjustment in station is station change mode, disconnects The connection of target power supply line unit and ground.It is to be understood that become 221 when target earth becomes the first ground connection, the first ground connection Become 221 operating mode and become simultaneous station change mode into ground connection, the first ground connection of the first ground connection of control change 221 becomes 221 high switches and breaks It opens, after being delayed, the first grounding switch 2213 of control is disconnected, then is controlled the first ground connection and got higher switch 2211 and be closed, i.e., by the The operating mode that one ground connection becomes 221 is become by ground connection and change mode adjustment in station is station change mode, is disconnected the first power supply line The connection of unit 210 and ground；Become 241 when target earth becomes the second ground connection, the second ground connection becomes 241 operating mode and becomes into ground connection And station change mode, the second ground connection that the second ground connection of control becomes 241 becomes 241 high switches and disconnects, after being delayed, the second ground connection of control Disconnecting link 2413 disconnects, then controls the second ground connection and get higher the closure of switch 2411, i.e., by the operating mode of the second ground connection change 241 by connecing Ground becomes and change mode adjustment in station is station change mode, is disconnected the connection of the second power supply line's unit 230 and ground；When target connects Ground becomes third ground connection and becomes 261, and the operating mode of third ground connection change 261 becomes into ground connection and station change mode, control third ground connection The third ground connection of change 261 becomes 261 high switch disconnections, and after being delayed, control third grounding switch 2613 is disconnected, then controls third and connect Ground gets higher the closure of switch 2611, i.e., becomes the operating mode that third ground connection becomes 261 by ground connection and change mode adjustment in station is station With mode is become, it is disconnected the connection of third power supply line unit 250 and ground.It should be noted that adjacent dynamic executing every two Certain delay (for example, 1S) can be added between work, to guarantee the safety of operation.

Figure 12 is please referred to, Figure 12 shows the box that ground connection provided in an embodiment of the present invention becomes automatic switching control equipment 300 and shows It is intended to.It includes parameter detection module 301, power supply judgment module 302, mode detection module 303 that ground connection, which becomes automatic switching control equipment 300, And execution module 304.

Parameter detection module 301 obtains the power supply parameter of power supply system 20 for detecting to power supply system 20.

In embodiments of the present invention, parameter detection module 301 can be used for executing step S101.

Power supply judgment module 302, for judging whether each power supply line's unit is corresponding negative to its according to power supply parameter Carrier unit power supply.

In embodiments of the present invention, power supply judgment module 302 can be used for executing step S102.

Mode detection module 303, for not giving its corresponding targeted loads unit to supply when judgement target power supply line unit When electric, the operating mode of detection target earth change.

In embodiments of the present invention, mode detection module 303 can be used for executing step S103.

Execution module 304, the company of operating mode adjustment target power supply line unit and ground for becoming according to target earth Connect relationship.

In embodiments of the present invention, execution module 304 can be used for executing step S104.

In conclusion a kind of ground connection provided by the invention becomes automatic switching method and device, firstly, carrying out to power supply system Detection, obtains the power supply parameter of power supply system, secondly, judging whether each power supply line's unit gives its correspondence according to power supply parameter Load unit power supply, then, when determine target power supply line unit do not give its corresponding targeted loads unit power when, detection The operating mode that target earth becomes, finally, the operating mode adjustment target power supply line unit and ground that become according to target earth Connection relationship.The operating mode that ground connection becomes or change ground connection becomes is disconnected to adjust power supply by work about electric power personnel with existing For line unit compared with the connection relationship on ground, ground connection provided by the invention becomes the power supply of automatic switching method and device adjust automatically The connection relationship of line unit and ground, improves operating efficiency.

In several embodiments provided herein, it should be understood that disclosed device and method can also pass through Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product, Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.

In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.

It, can be with if the function is realized and when sold or used as an independent product in the form of software function module It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.It needs Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device. In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element Process, method, article or equipment in there is also other identical elements.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing It is further defined and explained.

Claims

1. a kind of ground connection becomes automatic switching method, which is characterized in that for adjusting the ground state of power supply system, the power supply system System include multiple power supply modules being sequentially connected electrically, each power supply module include power supply line's unit and with the power supply The load unit of line unit electrical connection, each load unit include that ground connection becomes；The described method includes:

The power supply system is detected, the power supply parameter of the power supply system is obtained；

Judge whether each power supply line's unit gives its corresponding described load unit power supply according to the power supply parameter；

When determining that target power supply line unit does not give its corresponding targeted loads unit to power, the work of detection target earth change Mode；

Operating mode according to target earth change adjusts the connection relationship of target power supply line unit and ground.

2. the method as described in claim 1, which is characterized in that power supply line's unit includes power supply line, the load Unit further includes multiple loads and loaded line, and the multiple load and the ground connection, which become, to be electrically connected with the loaded line, The power supply parameter includes the first current value of power supply line in each power supply module and the second current value of loaded line, described The step of power supply system is detected, the power supply parameter of the power supply system is obtained, comprising:

The electric current of each power supply line is detected, the first current value of each power supply line is obtained；

The electric current of each loaded line is detected, the second current value of each loaded line is obtained.

3. method according to claim 2, which is characterized in that described to judge each supply lines according to the power supply parameter The step of whether road unit gives its corresponding described load unit to power, comprising:

According to first current value and second current value, judge whether power supply line's unit is corresponding described to its Load unit power supply；

When first current value and second current value are unequal, then determine that power supply line's unit is not corresponding to its Load unit power supply.

4. the method as described in claim 1, which is characterized in that power supply line's unit includes that main transformer is lower switch, described Load unit further includes multiple loads and loaded line, and the multiple load and the ground connection, which become, to be electrically connected with the loaded line Connect, the power supply parameter include in each power supply module main transformer be lower switch first switch state and loaded line second electricity Flow valuve；It is described that the power supply system is detected, the step of obtaining the power supply parameter of the power supply system, comprising:

The be lower switch state of switch of each main transformer is detected, obtains each main transformer and be lower the first of switch to open Off status；

5. method as claimed in claim 4, which is characterized in that the first switch state includes open and close；It is described according to The step of whether each power supply line's unit powers to its corresponding load unit, packet are judged according to the power supply parameter It includes:

According to the first switch state and second current value, judge whether power supply line's unit gives its corresponding institute State load unit power supply；

When the first switch state is disconnection and second current value is greater than the first pre-set current value, then the power supply is determined Line unit does not give its corresponding load unit power supply.

6. the method as described in claim 1, which is characterized in that the power supply system further includes at least one block switch, often A block switch is used to connect two adjacent power supply modules, and the load unit further includes multiple loads and load line Road, the multiple load and the ground connection, which become, to be electrically connected with the loaded line, and the power supply parameter includes each power supply mould The third current value of the second current value of loaded line and block switch, described to detect to the power supply system in block, obtains To the power supply system power supply parameter the step of, comprising:

The electric current of each loaded line is detected, the second current value of each loaded line is obtained；

The electric current of each block switch is detected, the third current value of each block switch is obtained.

7. method as claimed in claim 6, which is characterized in that described to judge each supply lines according to the power supply parameter The step of whether road unit gives its corresponding described load unit to power, comprising:

According to second current value and the third current value, judge whether power supply line's unit is corresponding described to its Load unit power supply；

When second current value is equal with the third current value and is all larger than the second pre-set current value, then the power supply is determined Line unit does not give its corresponding load unit power supply.

8. the method as described in claim 1, which is characterized in that the operating mode includes ground connection change mode, stands with change mode And ground connection becomes and station change mode, it includes grounding switch that each ground connection, which becomes, the work that the detection target earth becomes The step of operation mode, comprising:

The switch state of target earth disconnecting link is detected, the second switch state of the target earth disconnecting link is obtained, wherein The second switch state includes switch closing and switch opening；

When the second switch state is separating brake, the operating mode that the target earth becomes is determined as station change mode；

The electric current become to the target earth detects, and obtains the 4th current value that the target earth becomes；

When the 4th current value is greater than third pre-set current value, the operating mode that the target earth becomes is determined as being grounded Become and stand and uses change mode；

When the 4th current value is less than or equal to pre-set current value, the operating mode that the target earth becomes is determined as connecing Ground becomes mode.

9. method according to claim 8, which is characterized in that it further includes that ground connection gets higher switch, institute that each ground connection, which becomes, State the step of operating mode become according to the target earth adjusts the connection relationship of target power supply line unit and ground, packet It includes:

When the operating mode that the target earth becomes is ground connection change mode, controls the ground connection that the target earth becomes and become Height switch disconnects；

When the operating mode that the target earth becomes becomes simultaneous station change mode into ground connection, controls the target earth and become described Ground connection gets higher switch and disconnects, and after being delayed, controls the target earth disconnecting link and disconnects, then control the ground connection and get higher switch Closure.

10. a kind of ground connection becomes automatic switching control equipment, which is characterized in that for adjusting the ground state of power supply system, the power supply System includes multiple power supply modules being sequentially connected electrically, each power supply module include power supply line's unit and with the confession The load unit of electric line unit electrical connection, each load unit include that ground connection becomes；Described device includes:

Parameter detection module obtains the power supply parameter of the power supply system for detecting to the power supply system；

Power supply judgment module, for judging whether each power supply line's unit gives its corresponding institute according to the power supply parameter State load unit power supply；

Mode detection module, for examining when determining that target power supply line unit does not give its corresponding targeted loads unit to power Survey the operating mode that target earth becomes；

Execution module, the operating mode for becoming according to the target earth adjust the company of target power supply line unit and ground Connect relationship.