CN216436832U - New forms of energy boats and ships circuit topology structure - Google Patents

Abstract

The utility model relates to a new forms of energy boats and ships circuit topological structure, a serial communication port, including direct current battery charging outfit, direct current battery charging outfit charges for two sets of batteries respectively, two sets of batteries are connected to on the direct current bus respectively, it has first branch road and the second branch road that discharges to go back the symmetric connection on the direct current bus, diode an, first supplementary dc-to-ac converter have connected gradually on the first branch road that discharges, the second discharges and has connected gradually diode b, second supplementary dc-to-ac converter on the branch road, connects through the wire between diode an and diode b's the output, the other end of first supplementary dc-to-ac converter and second supplementary dc-to-ac converter is connected with the alternating current bus. The topological structure does not need to be connected to a grid, and the equipment modules and components are reduced to the maximum extent on the premise of meeting the circuit function and performance.

Description

New forms of energy boats and ships circuit topology structure

Technical Field

The utility model belongs to the technical field of new forms of energy boats and ships, a new forms of energy boats and ships circuit topological structure is related to.

Background

With the increasing control strength of the national environmental protection policy and the increasing maturity of new energy ship technology, new energy ships are increasingly applied to two rivers and inland lakes, the forced replacement requirements or encouragement policies of parts of the country have been issued at present, and pleasure boats, ferries, official boats and inland river transport boats suitable for the working conditions of the new energy ships can be replaced by the new energy ships in the future. The circuit topology structure in the prior art needs an independent ACDC charging module and an independent DCDC boosting module, so that the size and the cost of the direct current power distribution cabinet are increased, and fault points are increased; the debugging difficulty and the debugging period are increased in the grid-connected work of the DCDC and the ACDC, the auxiliary branch circuit has the discharging and charging functions, and the maximum value needs to be set for the corresponding capacity. The new forms of energy boats and ships driving system technique has made huge development and achievement support through the practical application of recent years, nevertheless along with market to the requirement of economic nature and reliability is higher and higher, and each supplier has progressively developed the work of reducing cost and improving efficiency, and it is imperative to optimize and simplify self system, the utility model discloses a retrench once more on company's two types of new forms of energy boats and ships topological structure independently research and development, the iterative progress.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a new forms of energy boats and ships circuit topological structure, need not consider charging current, and need not be incorporated into the power networks, under the prerequisite that satisfies function and performance, the at utmost reduces equipment module and components and parts.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a new forms of energy boats and ships circuit topological structure, a serial communication port, including direct current charging equipment, direct current charging equipment charges for two sets of batteries respectively, two sets of batteries are connected to on the direct current bus respectively, it has first branch road and the second branch road that discharges to go back the symmetrical connection on the direct current bus, diode a, first supplementary dc-to-ac converter have connected gradually on the first branch road that discharges, diode b, the supplementary dc-to-ac converter of second have connected gradually on the second discharge branch road, connect through the wire between diode a and the output of diode b, the other end of first supplementary dc-to-ac converter and the supplementary dc-to-ac converter of second is connected with the interchange bus.

Further, a bus coupler switch is connected to the direct current bus and between the input ends of the diode a and the diode b.

Furthermore, the two ends of the bus tie switch are respectively connected with a third fuse and a fourth fuse.

Furthermore, a first propulsion inverter and a second propulsion inverter are symmetrically connected to the direct current bus, and the other ends of the first propulsion inverter and the second propulsion inverter are connected with an alternating current motor.

Further, the input end of the first propulsion inverter is connected with a first circuit breaker and a first fuse; and the input end of the second propulsion inverter is connected with a second circuit breaker and a second fuse.

Furthermore, a filter device composed of an iron core coil and a capacitor is connected between the output ends of the first auxiliary inverter and the second auxiliary inverter and the alternating current bus.

Further, a three-phase transformer c is connected between the output end of the first auxiliary inverter and the alternating-current bus, and a three-phase transformer d is connected between the output end of the second auxiliary inverter and the alternating-current bus.

Furthermore, one end of the three-phase transformer c is connected with a first interlock switch, and one end of the three-phase transformer d is connected with a second interlock switch.

Further, the voltage of the direct current bus is DC540V-DC 690V; the alternating current bus comprises two buses, and the voltages of the two buses are AC380V and AC220V respectively.

Furthermore, a first loop and a second loop are connected between the two alternating current buses, a third interlocking switch and a three-phase transformer e are sequentially connected to the first loop, and a fourth interlocking switch and a three-phase transformer f are sequentially connected to the second loop.

Compared with the prior art, the utility model discloses following beneficial effect has:

this application has retrencied direct current distribution topological structure, and lithium cell group discharge lug connection unilateral is female arranges, transfers wide auxiliary inverter's input voltage scope, and two diodes are respectively add to auxiliary branch, connect the diode output simultaneously, auxiliary inverter only need according to load power select corresponding power grade equipment can, need not consider charging current, and need not be incorporated into the power networks, under the prerequisite that satisfies function and performance, the at utmost reduces equipment module and components and parts.

In the present invention, other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is the utility model relates to a new forms of energy boats and ships circuit topology structure chart.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the following claims.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments.

The utility model provides a new forms of energy boats and ships circuit topological structure, includes direct current charging equipment, direct current charging equipment charges for two sets of batteries respectively, two sets of batteries are connected to on the direct current bus respectively, it has first branch road and the second branch road that discharges to go back the symmetric connection on the direct current bus, diode a, first supplementary dc-to-ac converter have connected gradually on the first branch road that discharges, the second discharges and has connected gradually diode b, the supplementary dc-to-ac converter of second on the branch road, connects through the wire between diode a and the output of diode b, the other end of first supplementary dc-to-ac converter and the supplementary dc-to-ac converter of second is connected with the interchange generating line.

Preferably, a bus-tie switch is connected to the dc bus between the input terminals of the diode a and the diode b. The bus tie switch is in an off state under normal conditions, and when a group of storage batteries breaks down, the bus tie switch is closed, so that the two motors can be supplied with power by the group of storage batteries. A fifth fuse is connected between the diode a and the corresponding storage battery pack, and a sixth fuse is connected between the diode b and the corresponding storage battery pack; a seventh fuse is connected between the output end of the diode a and the first auxiliary inverter, and an eighth fuse is connected between the output end of the diode b and the second auxiliary inverter.

Preferably, both ends of the bus tie switch are respectively connected with a third fuse and a fourth fuse.

Preferably, the direct current bus is further symmetrically connected with a first propulsion inverter and a second propulsion inverter, and the other ends of the first propulsion inverter and the second propulsion inverter are connected with an alternating current motor. The input end of the first propulsion inverter is connected with a first circuit breaker and a first fuse; and the input end of the second propulsion inverter is connected with a second circuit breaker and a second fuse. The interlocking switch ensures that only one branch circuit operates, and prevents the power grid from circulating.

Preferably, an iron core coil and a capacitor are sequentially connected between the output ends of the first auxiliary inverter and the second auxiliary inverter and the ac bus. The iron core coil plays a role in filtering, and voltage quality is improved.

Preferably, a three-phase transformer c is further connected between the output end of the first auxiliary inverter and the ac bus, and a three-phase transformer d is further connected between the output end of the second auxiliary inverter and the ac bus. One end of the three-phase transformer c is connected with a first interlocking switch, and one end of the three-phase transformer d is connected with a second interlocking switch. The three-phase transformers c and d are used for isolating and transforming voltage, isolating common-mode interference and transforming the voltage to 380V.

Preferably, the voltage of the direct current bus is DC540V-DC 690V; the alternating current bus comprises two buses, and the voltages of the two buses are AC380V and AC220V respectively. A first loop and a second loop are connected between the two alternating current buses, a third interlocking switch and a three-phase transformer e are sequentially connected to the first loop, and a fourth interlocking switch and a three-phase transformer f are sequentially connected to the second loop. Three-phase transformers e and f transform the voltage to 220V.

Charging working conditions are as follows: the left and right storage batteries are charged by a standard direct current charging pile arranged on the wharf, and the charging navigation plug interface and the voltage level are national standards. And (3) discharge working condition: the storage battery pack is directly connected with the busbar of each direct-current power distribution cabinet, the input voltage range of the first auxiliary inverter and the input voltage range of the second auxiliary inverter are adjusted, and all voltage levels discharged by the storage battery pack are covered; two diodes are additionally arranged on the auxiliary branch, the output ends of the two diodes are connected, only one of the first auxiliary inverter and the second auxiliary inverter needs to be operated in the discharging process, grid connection is not needed, balanced discharging of the two groups of storage batteries can be achieved, and one group of batteries cannot be consumed.

The circuit topology structure omits two ACDC modules and two DCDC modules, thereby greatly reducing the size of the cabinet body; due to the single conduction function of the diode, the storage battery pack can be discharged in a balanced manner by operating any auxiliary branch; the topological structure omits four modules, and the software does not need to be connected with the grid, thereby greatly reducing the failure rate of the system.

This application has retrencied direct current distribution topological structure, and lithium cell group discharge lug connection unilateral is female arranges, transfers wide auxiliary inverter's input voltage scope, and two diodes are respectively add to auxiliary branch, connect the diode output simultaneously, auxiliary inverter only need according to load power select corresponding power grade equipment can, need not consider charging current, and need not be incorporated into the power networks, under the prerequisite that satisfies function and performance, the at utmost reduces equipment module and components and parts.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (10)

1. The utility model provides a new forms of energy boats and ships circuit topological structure, a serial communication port, including direct current charging equipment, direct current charging equipment charges for two sets of batteries respectively, two sets of batteries are connected to on the direct current bus respectively, it has first branch road and the second branch road that discharges to go back the symmetrical connection on the direct current bus, diode a, first supplementary dc-to-ac converter have connected gradually on the first branch road that discharges, diode b, the supplementary dc-to-ac converter of second have connected gradually on the second discharge branch road, connect through the wire between diode a and the output of diode b, the other end of first supplementary dc-to-ac converter and the supplementary dc-to-ac converter of second is connected with the interchange bus.

2. The new energy ship circuit topology structure of claim 1, wherein a bus tie switch is connected to the dc bus and between the input ends of the diode a and the diode b.

3. The new energy ship circuit topology structure of claim 2, wherein a third fuse and a fourth fuse are connected to two ends of the bus tie switch respectively.

4. The new energy ship circuit topology structure of claim 1, wherein a first propulsion inverter and a second propulsion inverter are further symmetrically connected to the direct current bus, and an alternating current motor is connected to the other ends of the first propulsion inverter and the second propulsion inverter.

5. The new energy ship circuit topology structure of claim 4, wherein a first breaker and a first fuse are connected to an input end of the first propulsion inverter; and the input end of the second propulsion inverter is connected with a second circuit breaker and a second fuse.

6. The new energy ship circuit topology structure of claim 1, wherein a filter device consisting of a core coil and a capacitor is connected between the output ends of the first auxiliary inverter and the second auxiliary inverter and the ac bus.

7. The new energy ship circuit topology structure of claim 1, wherein a three-phase transformer c is further connected between the output end of the first auxiliary inverter and the ac bus, and a three-phase transformer d is further connected between the output end of the second auxiliary inverter and the ac bus.

8. The new energy ship circuit topology structure of claim 7, wherein a first interlock switch is connected to one end of the three-phase transformer c, and a second interlock switch is connected to one end of the three-phase transformer d.

9. The new energy ship circuit topology structure of claim 1, wherein the voltage of the direct current bus is DC540V-DC 690V; the alternating current bus comprises two buses, and the voltages of the two buses are AC380V and AC220V respectively.

10. The new energy ship circuit topology structure of claim 9, wherein a first loop and a second loop are connected between the two ac busbars, a third interlock switch and a three-phase transformer e are sequentially connected to the first loop, and a fourth interlock switch and a three-phase transformer f are sequentially connected to the second loop.

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