Power van

Abstract

The invention discloses a power van which comprises a van body, the van body is of a box type structure, an installation space is formed in the van body, a generator set and a control cabinet are arranged in the van body, the generator set is fixed to a bottom plate of the van body, and the control cabinet is slidably connected to the bottom plate of the van body. A control window capable of being opened and closed is formed in a first side plate of the vehicle body, and the control cabinet can be close to or away from the control window through sliding. According to the power van provided by the invention, the control cabinet is connected with the vehicle body floor of the power van in a sliding connection manner, so that the position of the control cabinet is convenient to adjust, and the control cabinet is more convenient to operate and overhaul.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply vehicles, and more specifically, to a power supply vehicle. Background Art

[0002] The power supply vehicle is a mobile power supply device loaded with generator sets. For the structure of the power supply vehicle, for the convenience of operation, an openable window is usually set on the side of the vehicle body. The window faces the controller. The parallel or grid-connected function is selected through the controller, and the cable is pulled out from the adapter plate to connect other units or the mains. In general units, the unit controller is fixed on the chassis of the unit, but the power supply vehicle separates the control cabinet and the unit into two rooms during the design process. The control cabinet is directly fixed to the bottom of the vehicle body and cannot be moved. The controller is close to the window and can only be operated from the window. It is also difficult for maintenance personnel to see the front of the controller when entering the electrical room. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention innovatively provides a power supply vehicle, which can solve the technical problem of inconvenient maintenance of control cabinets in the prior art.

[0004] To achieve the above technical objectives, the present invention discloses a power supply vehicle, including a vehicle body, the vehicle body is a box-type structure, an installation space is formed inside the vehicle body, a generator set and a control cabinet are arranged in the vehicle body, wherein the generator set is fixed on the bottom plate of the vehicle body, and the control cabinet is slidably connected to the bottom plate of the vehicle body.

[0005] The first side plate of the vehicle body is provided with an openable and closable control window, and the control cabinet can move closer to or farther from the control window by sliding.

[0006] Furthermore, a slide rail perpendicular to the first side plate is arranged on the bottom plate of the vehicle body, and a sliding connection block is arranged at the bottom of the control cabinet, and the sliding connection block is slidably connected to the slide rail.

[0007] Furthermore, an operating handle is provided on the control cabinet, and the operating handle is provided on a side facing the first side panel. The operating handle can be operated through the control window to control the sliding of the control cabinet.

[0008] Furthermore, a control system is arranged in the control cabinet, and the control system includes an output circuit breaker, a first end of the output circuit breaker is connected to the generator set, and a second end of the output circuit breaker is used to be connected to the mains.

[0009] Furthermore, the control system can be used for grid-connected control, and the grid-connected control includes: an isolated grid power generation mode and a grid-connected peak-shaving and voltage-regulating mode, and the grid-connected mode is controlled by the output circuit breaker.

[0010] Furthermore, the isolated grid power generation mode includes:

[0011] Disconnect the mains power;

[0012] Starting the generator set, which is in parallel state, and closing the output circuit breaker;

[0013] After the power protection is completed, the output circuit breaker is opened and the generator set is shut down.

[0014] Furthermore, the grid-connected peak-shaving and voltage-regulating mode includes:

[0015] The generator set is in a grid-connected state, and the load power is set to 5% of the total power, and the generator set is started;

[0016] Closing the output circuit breaker, connecting the load to the mains grid, and adjusting the loading power of the generator set to 20%-90% of the total power;

[0017] After the grid connection is completed, the loading power of the generator set is adjusted to 5% of the total power, the output circuit breaker is opened, and the generator set is shut down.

[0018] Furthermore, the control system further comprises a mains circuit breaker, a first end of the mains circuit breaker is connected to the mains, and a second end of the mains circuit breaker is connected to a second end of the output circuit breaker.

[0019] Furthermore, the grid-connected control also includes a secondary grid-connected non-power-off maintenance mode, and the control method includes:

[0020] The generator set is in a grid-connected state, and the load power is set to 5% of the total power, and the generator set is started;

[0021] Closing the output circuit breaker, connecting the load to the mains grid, and adjusting the loading power of the generator set to 20%-90% of the total power;

[0022] The mains power supply is disconnected, and the generator set is switched to the "parallel" mode;

[0023] After the mains power is restored, the mains power circuit breaker is closed, and the generator set is switched to the "grid-connected" mode to connect to the mains power;

[0024] After the grid connection is completed, the loading power of the generator set is adjusted to 5% of the total power, the output circuit breaker is opened, and the generator set is shut down.

[0025] The beneficial effects of the present invention are:

[0026] The control cabinet in the power supply vehicle provided by the present invention is connected to the vehicle body floor of the power supply vehicle in a slidable manner, so that the position of the control cabinet can be easily adjusted, making the operation and maintenance of the control cabinet more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A partial structural schematic diagram of a power supply vehicle according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic diagram of a grid-connected control circuit of a control system according to an embodiment of the present invention (single vehicle) is shown;

[0029] Figure 3 A schematic diagram of a grid-connected control circuit of a control system according to an embodiment of the present invention (single vehicle) is shown;

[0030] Figure 4 A schematic diagram of a grid-connected control circuit (multiple vehicles) of a control system according to an embodiment of the present invention is shown;

[0031] Figure 5 A schematic diagram of a grid-connected control circuit (multiple vehicles) of a control system according to an embodiment of the present invention is shown;

[0032] Figure 6 A schematic diagram of a grid-connected control circuit (multiple vehicles) of a control system according to an embodiment of the present invention is shown;

[0033] Figure 7 A connection diagram of a multi-power supply vehicle according to an embodiment of the present invention is shown.

[0034] In the figure,

[0035] 1. Carriage; 11. Floor; 12. Slide rail; 13. Control window; 2. Control cabinet; 21. Handle. DETAILED DESCRIPTION

[0036] The power supply vehicle provided by the present invention is explained and illustrated in detail below in conjunction with the drawings of the specification. The control cabinet in the power supply vehicle provided by the present invention is connected to the vehicle body floor of the power supply vehicle in a slidable manner, so that the position of the control cabinet can be adjusted conveniently, making the operation and maintenance of the control cabinet more convenient. In addition, the control system of the control cabinet can control the generator set in a variety of grid-connected modes, making the power supply mode of the power supply vehicle more diversified, and the operation more convenient and reliable. The present invention is described in detail below through specific embodiments:

[0037] In some embodiments, the present invention provides a power supply vehicle that can be used for temporary municipal power supply. For example, when the municipal power grid needs to be repaired, temporary power supply can be provided through the power supply vehicle to avoid or reduce the impact on users. The power supply vehicle includes a vehicle body, which is a box-type structure with an installation space formed inside. Optionally, a container structure can be selected. The power supply vehicle can take the form of a square cabin power station. A generator set and a control cabinet are arranged in the vehicle body, wherein the generator set is fixed on the bottom plate of the vehicle body, and the control cabinet is slidably connected to the bottom plate of the vehicle body. An openable and closable control window is arranged on the first side panel of the vehicle body, and the control cabinet can move closer to or away from the control window by sliding.

[0038] Optionally, a slide rail perpendicular to the first side panel is provided on the bottom plate of the vehicle body, and a sliding connection block is provided at the bottom of the control cabinet, and the sliding connection block is slidably connected to the slide rail. In some embodiments, two slide rails are provided in parallel with each other, and limiting structures are provided at both ends of the two slide rails to prevent the control cabinet from slipping. A connecting slider is provided at the bottom of the control cabinet, which is slidably connected to the slide rail through the connecting slider. Optionally, the connecting slider and the slide rail are connected by a dovetail groove structure. Furthermore, a fixing device can be provided on the connecting slider, and the connecting slider can be fixed to the slide rail by the fixing device to fix the position of the control cabinet. Optionally, its position can be fixed at least when the control cabinet is in use, to ensure that the control cabinet can be normally operated through the control window outside the vehicle body.

[0039] In some embodiments, an operating handle is provided on the control cabinet, and the operating handle is provided on a side facing the first side panel, and the operating handle can be operated through the control window to control the sliding of the control cabinet. When the control cabinet needs to be repaired, the control cabinet can be moved by operating the handle, thereby preventing the control cabinet from sliding and colliding.

[0040] A control system is provided in the control cabinet, and the control system is used to control the generator set, including the operating status of the generator set and the grid connection mode, etc. Optionally, the control system includes a mains circuit breaker and an output circuit breaker, wherein a first end of the output circuit breaker is connected to the generator set, a second end of the output circuit breaker is used to be connected to the mains, and an output end of the mains circuit breaker is connected to the second end of the output circuit breaker.

[0041] The control cabinet is equipped with a "parallel machine / grid connection" knob and a "first and last machine / middle machine" knob to control the grid connection mode. The control cabinet is also equipped with generator set control buttons to control the operating status of the generator set, such as operating power, output status, etc.

[0042] When the mains is under maintenance, the power supply to the load will be stopped. The process of switching from the mains to the power supply vehicle will cause a short power outage to the load. Therefore, power supply from the power supply vehicle is an important way to reduce power outage time. Its main application scenarios include: single-vehicle isolated grid power generation, single-vehicle grid-connected peak-shaving and voltage regulation, multi-vehicle parallel isolated grid power generation, multi-vehicle parallel grid-connected peak-shaving and voltage regulation, single-vehicle secondary grid-connected maintenance without power outage, and multi-vehicle secondary grid-connected maintenance without power outage.

[0043] In some embodiments, the control system of the power supply vehicle of the present invention can be used for grid-connected control, and the grid-connected control includes: single-vehicle isolated grid power generation mode, single-vehicle grid-connected peak-shaving and voltage-regulating mode, single-vehicle secondary grid-connected non-stop maintenance mode, multi-vehicle parallel isolated grid power generation mode, multi-vehicle parallel grid-connected peak-shaving and voltage-regulating mode, and multi-vehicle secondary grid-connected non-stop maintenance mode. The specific control method includes:

[0044] Single-vehicle isolated grid power generation mode: Figure 2 As shown, disconnect the AC power incoming line switch; set the "parallel / grid" knob of generator set G1 to the "parallel" position, and the "first and last machine / middle machine" knob to the "first and last machine" position; start generator set G1, close the output circuit breaker GCB, and close the load end when the single machine is loaded; after the power protection is completed, disconnect the load end, open the output circuit breaker GCB, and shut down G1.

[0045] Single-vehicle grid-connected peak-shaving and voltage-regulating mode: Figure 2 As shown, set the "parallel / grid" knob of generator set G1 to the "grid" position, and set the "first and last machine / middle machine" knob to the "first and last machine" position; set the parallel controller base load to 5% of the total power of the unit, and start generator set G1. Close the output circuit breaker GCB, and the unit will automatically close the output circuit breaker GCB after synchronization check. Set the system base load as needed (the single load should not exceed 20% of the total power of the unit, and the total grid power should not exceed 90% of the total power of the unit, otherwise a short-term overload alarm may occur during the load adjustment process), and connect to the grid with load; after the operation is completed, set the parallel controller base load to 5% of the total power of the unit, open the output circuit breaker GCB, and open the output circuit breaker GCB after the unit is soft unloaded; stop generator set G1 to achieve peak load regulation and grid connection.

[0046] Single vehicle secondary grid-connected non-stop maintenance mode: Figure 3As shown, set the "parallel / grid" knob of generator set G1 to the "grid" position, and set the "first and last machine / middle machine" knob to the "first and last machine" position; adjust the base load of the parallel controller to 5% of the total power of the unit; start generator set G1, close the output circuit breaker GCB, and the unit will automatically close the output circuit breaker GCB after synchronization check, set the base load of the parallel controller as needed (the single load shall not exceed 20% of the total power of the unit, and the total grid power shall not exceed 90% of the total power of the unit, otherwise a short-term overload alarm may occur during the load adjustment process), and connect to the grid with load (one-time grid connection is completed); when the online switch is disconnected, the city power stops supplying power. Disconnect the mains incoming line switch (the pole switch is disconnected), G1 jumps to island load, and the unit switches to the "parallel" mode; after the mains is restored, use the grid-connected controller to close the mains circuit breaker MCB, and the mains reverse synchronization is completed; the generator group G1 switches to the "grid-connected" mode; close the mains incoming line switch; set the parallel controller base load to 5% of the total power of the unit, open the output circuit breaker GCB, and after the unit is soft-unloaded, the output circuit breaker GCB is opened, and G1 is shut down; open the mains circuit breaker MCB, and the mains power is restored.

[0047] Multi-vehicle parallel isolated grid power generation mode: Figure 4 , Figure 7 As shown, connect the parallel communication line; set the "parallel / grid" knobs of the three series-connected units G1, G2, and G3 to the "parallel" position; set the "first and last units / middle units" knobs of G1 and G3 to the "first and last units" position, and the "first and last units / middle units" knob of G2 to the "middle unit" position; start G1, G2, and G3 in sequence, and close GCB1, GCB2, and GCB3 in sequence; G1, G2, and G3 are connected in parallel for island power supply. After the operation is completed, disconnect the load end, open GCB1, GCB2, and GCB3 in sequence, and shut down G1, G2, and G3 (multi-machine parallel operation with load completed).

[0048] Multi-vehicle parallel connection and grid-connected peak and voltage regulation mode: Figure 5As shown, connect the parallel communication line and grid feedback line. Set the "parallel / grid" knob of G1 to the "grid" position, and set the "parallel / grid" knobs of G2 and G3 to the "parallel" position; set the "first and last machine / middle machine" knobs of G1 and G3 to the "first and last machine" position; set the "first and last machine / middle machine" knob of G2 to the "middle machine" position; adjust the base load of the parallel controller of G1 to 15% of the total power of the unit; start G1, G2, and G3 in sequence, and close GCB1, GCB2, and GCB 3. G1, G2 and G3 are connected to the grid with load respectively. After the connection is successful, adjust the base load as needed. After the operation is completed, set the base load of the parallel controller of G1 to 15% of the total power of the unit (the minimum base load of a single controller is 5% of the total power of the unit, and the system base load is set according to the number of units), open GCB1, GCB2 and GCB3, and open the GCB circuit breaker after the unit is soft unloaded; shut down G1, G2 and G3 (multiple machines are connected to the grid at one time).

[0049] Multiple vehicles are connected to the grid twice without power outage for maintenance: Figure 6 As shown, connect the parallel communication line and grid feedback line; set the "parallel / grid" knob of G1 to the "grid" position, and set the "parallel / grid" knobs of G2 and G3 to the "parallel" position; set the "first and last machine / middle machine" knobs of G1 and G3 to the "first and last machine" position; set the "first and last machine / middle machine" knob of G2 to the "middle machine" position; adjust the base load of the parallel controller of G1 to 15% of the total power of the unit; start G1, G2, G3 in sequence, and close GCB1, GCB2, GCB3 in sequence; G1, G2, G3 are connected to the grid with load respectively, and after successful grid connection, adjust the base load as needed (one-time grid connection is completed); when the online switch is disconnected, the city power supply stops. Disconnect the mains incoming line switch (the pole switch is disconnected), G1 jumps to island load, and the unit switches to the "parallel" mode; after the mains is restored, use the G1 grid-connected controller to close MCB1, and the mains reverse synchronization is completed; the unit switches to the "grid" mode; close the mains incoming line switch; set the parallel controller base load to 15% of the total power of the unit, and after the unit is soft-unloaded, GCB1, GCB2, and GCB3 circuit breakers are opened; shut down the G1, G2, and G3 units, and open MCB1.

[0050] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention should be included in the protection scope of the present invention.

Claims

1. A power supply vehicle, characterized in that: The vehicle body comprises a box-type structure with an installation space formed therein, a generator set and a control cabinet are arranged in the vehicle body, wherein the generator set is fixed on the bottom plate of the vehicle body, and the control cabinet is slidably connected to the bottom plate of the vehicle body. The first side plate of the vehicle body is provided with an openable and closable control window, and the control cabinet can move closer to or farther from the control window by sliding.

2. The power supply vehicle according to claim 1, characterized in that: A slide rail perpendicular to the first side plate is arranged on the bottom plate of the vehicle body, and a slide connection block is arranged at the bottom of the control cabinet, and the slide connection block is slidably connected to the slide rail.

3. The power supply vehicle according to claim 2, characterized in that: The control cabinet is provided with an operating handle, which is arranged on a side facing the first side plate. The operating handle can be operated through the control window to control the sliding of the control cabinet.

4. The power supply vehicle according to claim 3, characterized in that: A control system is arranged in the control cabinet. The control system comprises an output circuit breaker. A first end of the output circuit breaker is connected to the generator set, and a second end of the output circuit breaker is used to be connected to the mains.

5. The power supply vehicle according to claim 4, characterized in that: The control system can be used for grid-connected control, which includes: an isolated grid power generation mode and a grid-connected peak-shaving and voltage-regulating mode, and the grid-connected mode is controlled by the output circuit breaker.

6. The power supply vehicle according to claim 5, characterized in that: The isolated grid power generation mode includes: Disconnect the mains power; Starting the generator set, which is in parallel state, and closing the output circuit breaker; After the power protection is completed, the output circuit breaker is opened and the generator set is shut down.

7. The power supply vehicle according to claim 5, characterized in that: The grid-connected peak-shaving and voltage-regulating mode includes: The generator set is in a grid-connected state, and the load power is set to 5% of the total power, and the generator set is started; Closing the output circuit breaker, connecting the load to the mains grid, and adjusting the loading power of the generator set to 20%-90% of the total power; After the grid connection is completed, the loading power of the generator set is adjusted to 5% of the total power, the output circuit breaker is opened, and the generator set is shut down.

8. The power supply vehicle according to claim 5, characterized in that: The control system further comprises a mains circuit breaker, a first end of the mains circuit breaker is connected to the mains, and a second end of the mains circuit breaker is connected to the second end of the output circuit breaker.

9. The power supply vehicle according to claim 8, characterized in that: The grid-connected control also includes a secondary grid-connected non-stop maintenance mode, and the control method includes: The generator set is in a grid-connected state, and the load power is set to 5% of the total power, and the generator set is started; Closing the output circuit breaker, connecting the load to the mains grid, and adjusting the loading power of the generator set to 20%-90% of the total power; Disconnect the mains power supply, and switch the generator set to the "parallel" mode; After the mains power is restored, the mains power circuit breaker is closed, and the generator set is switched to the "grid-connected" mode to connect to the mains power; After the grid connection is completed, the loading power of the generator set is adjusted to 5% of the total power, the output circuit breaker is opened, and the generator set is shut down.

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