A remote intelligent control combined synchronous power supply system

Abstract

This invention discloses a long-distance intelligent control combined synchronous power supply system, including a three-phase high-voltage overhead line. The three-phase high-voltage overhead line is electrically connected to an N-type overhead line sectionalizing switch k1 and an M-type overhead line sectionalizing switch k2. A first synchronous high-voltage cabinet without a generator is connected via lines to the left and right ends of the three-phase high-voltage overhead line between the N-type overhead line sectionalizing switch k1 and the M-type overhead line sectionalizing switch k2. The system also includes a second synchronous high-voltage cabinet with a generator, connected to the left end between the M-type overhead line sectionalizing switches k2. The second synchronous high-voltage cabinet is wirelessly connected to a mobile control terminal. This invention has a simple structure, flexible layout, no mutual interference, minimal impact from terrain, and multiple sets can be used in combination at different locations on the same line to meet practical application needs.

Description

TECHNICAL FIELD

[0001] The present application relates to a power supply system, more particularly to a remote intelligent control combined synchronization power supply system, belonging to the field of power supply system. BACKGROUND

[0002] With the continuous refinement of power supply enterprise management, the number of households during power outage has been increasingly valued as an important operation and inspection index by power supply companies at all levels. In the case of uninterrupted engineering construction, how to reduce the number of households during construction power outage is a difficult problem faced by power supply companies at all levels. In recent years, in order to reduce this key index, live work teams and live work companies have developed rapidly, and power supply companies at all levels have carried out large-scale live work. At the same time, due to the fact that some construction sites and work tasks are not suitable for live work, power supply enterprises spend a lot of manpower and material resources to directly supply power to users through the use of on-site generators for power generation.

[0003] At present, the traditional generator power supply scheme can effectively reduce the number of households during power outage and significantly improve user satisfaction, but due to the frequency, phase angle difference and other conditions between the power generated by the generator and the power in the original power grid, the generator cannot be directly connected to the grid for operation, and the power grid power needs to be cut off first, and then the generator power is put into operation. Therefore, there is still a few seconds of actual power outage time, and during the operation, the electric customers' electric light will flicker, the computer will shut down, the equipment will stop running, etc. It is impossible to achieve truly "zero perception" power supply. In addition, due to the limitation of the terrain, the synchronization equipment generator can only be set at the appropriate pole as the power outage synchronization point, and when remote intelligent control is needed, a set of synchronization high-voltage cabinet needs to be placed at other poles as the recovery power transmission synchronization point. At this time, the terrain, cable environment, and long-distance laying cost, equipment weight need to be considered, so a remote intelligent control combined synchronization power supply system that can be applied to power supply points and grid points with large distance difference and inconvenient cable laying is developed. SUMMARY

[0004] In order to solve the above-mentioned prior art problems, the present application provides a remote intelligent control combined synchronization power supply system with the technical characteristics of simple structure, flexible arrangement, small influence of terrain, and multiple sets of cooperation at different locations on the same line.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0006] The utility model relates to a kind of remote intelligent control combined type synchronous power supply system, including three-phase high-voltage overhead line, N number of overhead line sectional switch k1, M number of overhead line sectional switch k2 are electrically connected on the three-phase high-voltage overhead line, three-phase high-voltage overhead line on the left end of N number of overhead line sectional switch k1 is connected with line having generator one synchronous high-voltage cabinet, still include being connected in the left end of M number of overhead line sectional switch k2 and having generator two synchronous high-voltage cabinet, the one synchronous high-voltage cabinet, two synchronous high-voltage cabinet are wirelessly connected with mobile control terminal.

[0007] Preferably, the one synchronous high-voltage cabinet includes 1 line, 2 line, the 1 line, 2 line are connected on the three-phase high-voltage overhead line of N number of overhead line sectional switch k1 both ends, the other end of the 1 line, 2 line is connected on one high-voltage bus, the 1 line, 2 line is respectively connected with a first on-off switch, second on-off switch.

[0008] Preferably, the two synchronous high-voltage cabinet includes 3 line connected between 2 line and M number of overhead line sectional switch k2, the other end of the 3 line is connected on two high-voltage bus, the two high-voltage bus is also connected with 4 line, the 4 line is connected with generator, the 3 line, 4 line is respectively provided with third on-off switch, fourth on-off switch, the third on-off switch is connected with two synchronous closing controller, the two synchronous closing controller is connected on the 3 line, 4 line by sampling data line.

[0009] Preferably, the one on-off switch is connected with a first synchronous closing controller, and the first synchronous closing controller is connected on the 1 line, 2 line by sampling data line.

[0010] Preferably, the one synchronous closing controller and the second synchronous closing controller each include a logic judgment module, an execution module connected to the logic judgment module, and a sampling module, the sampling module in the first synchronous closing controller is connected on the 1 line, 2 line by sampling data line, and the sampling module in the second synchronous closing controller is connected on the 3 line, 4 line by sampling data line.

[0011] Preferably, the one synchronous closing controller and the second synchronous closing controller are electrically connected with a communication module, and the communication module is wirelessly connected with a mobile control terminal.

[0012] Preferably, the one on-off switch, the second on-off switch, the third on-off switch and the fourth on-off switch are electrically connected with a communication module.

[0013] Preferably, the second on-off switch and the fourth on-off switch are manually operated.

[0014] Preferably, N and M are positive integers, and M is greater than N.

[0015] Beneficial effects: simple structure, flexible arrangement, no interference with each other, less affected by terrain, multiple sets can be used at different locations of the same line to meet actual use requirements. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the connection structure of a first simultaneous high-voltage cabinet and a three-phase high-voltage overhead line in embodiment 1 of the present application.

[0017] Figure 2 is a schematic diagram of the connection structure of a second simultaneous high-voltage cabinet and a three-phase high-voltage overhead line in embodiment 1 of the present application. DETAILED DESCRIPTION

[0018] The present application will be further described below in conjunction with the accompanying drawings of the specification, but the present application is not limited to the following embodiments.

[0019] As Figures 1-2 shown is a specific embodiment of a long-distance intelligent control combined simultaneous power supply system, a long-distance intelligent control combined simultaneous power supply system, comprising a three-phase high-voltage overhead line, the three-phase high-voltage overhead line is electrically connected with N overhead line sectional switches k1, M overhead line sectional switches k2, the three-phase high-voltage overhead line on the left and right ends of the N overhead line sectional switches k1 is connected with a first simultaneous high-voltage cabinet without a generator through a line, further comprising a second simultaneous high-voltage cabinet with a generator connected between the left end of the M overhead line sectional switches k2, the first simultaneous high-voltage cabinet and the second simultaneous high-voltage cabinet are wirelessly connected with a mobile control terminal, N and M are positive integers, and M is greater than N.

[0020] The first simultaneous high-voltage cabinet comprises a first line and a second line, the first line and the second line are connected to the three-phase high-voltage overhead line at both ends of the N overhead line sectional switches k1, the other ends of the first line and the second line are connected to a first high-voltage bus, the first line and the second line are respectively connected with a first on-off switch and a second on-off switch, the second simultaneous high-voltage cabinet comprises a third line connected between the second line and the M overhead line sectional switches k2, the other end of the third line is connected to a second high-voltage bus, the second high-voltage bus is further connected with a fourth line, the fourth line is connected with a generator, the third line and the fourth line are respectively provided with a third on-off switch and a fourth on-off switch, the third on-off switch is connected with a second simultaneous closing controller, the second simultaneous closing controller is connected to the third line and the fourth line through a sampling data line, the third line and the fourth line are both three-phase lines, so three-phase sampling pts are used respectively, the third line and the fourth line are both connected with display devices, and the display devices comprise lamps.

[0021] The first on-off switch is connected with a first synchronization closing controller, the first synchronization closing controller is connected with a sampling data line on the 1# line and the 2# line respectively, the 1# line and the 2# line are three-phase lines, therefore, three-phase sampling pt is used respectively, the 1# line and the 2# line are connected with display devices, the display device comprises a lamp.

[0022] The first synchronization closing controller and the second synchronization closing controller comprise a logic judgment module, an execution module connected with the logic judgment module and a sampling module, the sampling module in the first synchronization closing controller is connected with a sampling data line on the 1# line and the 2# line respectively, the sampling module in the second synchronization closing controller is connected with a sampling data line on the 3# line and the 4# line respectively, the first synchronization closing controller and the second synchronization closing controller are electrically connected with a communication module, the communication module is wirelessly connected with a mobile control terminal.

[0023] The first on-off switch, the second on-off switch, the third on-off switch and the fourth on-off switch are electric switches, specifically driven by a motor, the motor is grounded, wherein the second on-off switch and the fourth on-off switch can be manual switches.

[0024] Embodiment 1

[0025] Figure 1 And Figure 2 The three-phase high-voltage overhead lines in the 1# line and the 2# line are connected, N and M are respectively taken as 66 and 99, representing that the 1# line and the 2# line are set at the 66# pole and the 99# pole, and the implementation is to supply power to the line section between the 66# pole and the 99# pole.

[0026] In this embodiment, a section of the simulated line (i.e. the 66-99# line section needs to be supplied with power) is simulated, and the simulation environment is that due to the limitation of the terrain, the second synchronization high-voltage cabinet (synchronization equipment power generation equipment) can only be set at the 99# pole, and the cable cannot be laid for such a long distance due to the influence of the environment and the cost, therefore, the first synchronization high-voltage cabinet is placed at the 66# pole as a recovery power transmission synchronization point, the focus is that the first synchronization high-voltage cabinet only has a high-voltage cabinet and a first synchronization closing controller, without a generator and a step-up transformer, the weight is very small, the equipment volume is small, and the equipment can be lifted into the complex terrain, and in the actual situation, the equipment can be placed in an area of half square meters, and finally, the equipment is applicable to the scene that the distance between the power supply point and the network point is too different, and the cable is not convenient to lay.

[0027] Specifically, according to the on-site power supply requirement, the devices are connected, the three-phase high-voltage overhead line at the 99# pole is connected with the 3# line, the 4# line is connected with the generator, and the three-phase high-voltage overhead line at the 66# pole is connected with the 1# line and the 2# line.

[0028] I. Operation when power is off (when all wiring preparation work is completed, synchronization power supply is needed)

[0029] 1. The No. 3 high-voltage overhead line at the No. 99 pole is connected to the No. 3 line, and the No. 4 line is connected to the low-voltage generator G. The low-voltage generator G is connected to the step-up transformer T. The No. 3 line and the No. 4 line are both connected to the No. 2 high-voltage bus, and the No. 3 line and the No. 4 line are both connected to the No. 2 synchronous closing controller for real-time detection data information. At this time, the switches on the No. 3 line and the No. 4 line are in standby state.

[0030] 2. Start the low-voltage generator G and adjust the power parameters.

[0031] 3. Use the phase detector to check the phase of the No. 3 line and the No. 4 line (both the No. 3 line and the No. 4 line are three-phase lines, and it is determined whether they are correctly connected to the three-phase high-voltage overhead line). If the phase is correct, proceed to the next step. If the phase is incorrect, adjust the overhead line joint.

[0032] 4. Close the No. 4 on-off switch. After the low-voltage generator G is boosted, the power is transmitted to the No. 2 high-voltage bus.

[0033] 5. Obtain information through the sampling module to know whether the grid voltage, frequency, and generator voltage, frequency are close. If normal, start the No. 2 synchronous closing device through the mobile control terminal. If the power quality after the generator is boosted is poor, adjust the generator and the step-up transformer to make the power quality close to the grid power.

[0034] 6. Start the No. 2 synchronous closing device. The motor drives the control to close the No. 3 on-off switch. At this time, the generator is connected to the grid.

[0035] 7. According to the work arrangement, pull open the No. 66 overhead line sectionalizing switch K1. At this time, the power supply of the grid line between No. 66 and No. 99 is provided by the generator. The entire power supply process during power failure is completed.

[0036] II. Operation process during power transmission:

[0037] 1. The three-phase high-voltage overhead line at the No. 66 pole is connected to the No. 1 line and the No. 2 line. All switches (No. 1 on-off switch and No. 2 on-off switch) on the No. 1 line and the No. 2 line are in standby state.

[0038] 2. Close the No. 4 on-off switch. After the low-voltage generator G is boosted, the power is transmitted to the No. 2 high-voltage bus.

[0039] 3. Obtain information through the sampling module to know whether the grid voltage, frequency, and generator voltage, frequency are close. If normal, start the No. 2 synchronous closing device through the mobile control terminal. If the power quality after the generator is boosted is poor, adjust the generator and the step-up transformer to make the power quality close to the grid power.

[0040] 4, the second synchronization closing device starts, through the motor to drive the control to close the third on-off switch, at this time the generator is connected to the grid;

[0041] 5, according to the work arrangement, close the 66 overhead line sectional switch K1;

[0042] 6, pull all the switches on the 1st line and the 2nd line (including the first on-off switch and the second on-off switch);

[0043] 7, then pull all the switches on the 3rd line and the 4th line (including the third on-off switch and the fourth on-off switch), complete the whole power supply process.

[0044] In actual use, the system wiring is complex, and the power consumption points are scattered. Therefore, multiple sets of power supply systems need to work at the same time to meet the actual power consumption demand. The system of the present application is flexible in arrangement and does not interfere with each other, and can be used in multiple sets at different locations on the same line to meet the actual use demand.

[0045] Finally, it should be noted that the present application is not limited to the above embodiments, but can have many variations. All variations that can be directly derived or inferred from the disclosed content by those of ordinary skill in the art should be considered within the scope of the present application.

Claims

1. A long distance intelligent control combined synchronized power supply system, comprising a three-phase high-voltage overhead line, characterized in that: The three-phase high-voltage overhead line is electrically connected with N overhead line sectional switches k1 and M overhead line sectional switches k2, three-phase high-voltage overhead lines at left and right ends of the N overhead line sectional switches k1 are connected with a first synchronous high-voltage cabinet without a generator through a line, and the first synchronous high-voltage cabinet further comprises a second synchronous high-voltage cabinet with a generator connected between left ends of the M overhead line sectional switches k2, and the first synchronous high-voltage cabinet and the second synchronous high-voltage cabinet are both wirelessly connected with a mobile control terminal; The first synchronous high-voltage cabinet comprises a first line and a second line, the first line and the second line are connected to the three-phase high-voltage overhead lines at both ends of the N overhead line sectional switches k1, and the other ends of the first line and the second line are both connected to a first high-voltage bus, and the first line and the second line are respectively connected with a first on-off switch and a second on-off switch; The second synchronous high-voltage cabinet comprises a third line connected between the second line and the M overhead line sectional switches k2, and the other end of the third line is connected to a second high-voltage bus, the second high-voltage bus is further connected with a fourth line, the fourth line is connected with a generator, and the third line and the fourth line are respectively provided with a third on-off switch and a fourth on-off switch, and the third on-off switch is connected with a second synchronous closing controller, and the second synchronous closing controller is connected to the third line and the fourth line through a sampling data line; The first on-off switch is connected with a first synchronous closing controller, and the first synchronous closing controller is connected to the first line and the second line through a sampling data line.

2. The long-distance intelligent control combined synchronous power supply system according to claim 1, characterized in that: The first synchronous closing controller and the second synchronous closing controller both comprise a logic judgment module, an execution module connected with the logic judgment module, and a sampling module, the sampling module in the first synchronous closing controller is connected to the first line and the second line through a sampling data line, and the sampling module in the second synchronous closing controller is connected to the third line and the fourth line through a sampling data line.

3. The system according to claim 1 or 2, characterized in that: The first synchronous closing controller and the second synchronous closing controller are electrically connected with a communication module, and the communication module is wirelessly connected with a mobile control terminal.

4. The system according to claim 1 or 2, characterized in that: The first on-off switch, the second on-off switch, the third on-off switch, and the fourth on-off switch are all electric switches.

5. The system of claim 1, wherein the system further comprises: a plurality of remote intelligent control combined power supply systems. The second on-off switch and the fourth on-off switch are manual switches.

6. The system of claim 1, wherein the system further comprises: a plurality of remote intelligent control combined power supply systems. N and M are positive integers, and the value of M is greater than the value of N.

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