CN216139850U

CN216139850U - High-power charger for ship power battery

Info

Publication number: CN216139850U
Application number: CN202121635281.XU
Authority: CN
Inventors: 刘海峰; 邢建旭; 卢峰; 郑松松; 周佩祥; 牛高远; 刘玉振; 赵建荣; 宋乐; 李天玉; 沈晓斌; 宋锦海; 肖超云
Original assignee: Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-03-29
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a high-power charger for a ship power battery, which comprises a cabinet and is characterized by further comprising a fan, a radiator, a main circuit board and a plurality of circuit breakers, wherein an air inlet channel, a fan bin and an air outlet channel are arranged at the upper part of the cabinet and are communicated with each other, the radiator is arranged on the side wall of the air inlet channel, the fan is arranged in the fan bin, the main circuit board and the circuit breakers are arranged at the lower part of the cabinet, and the lower part of the cabinet is communicated with the fan bin of the cabinet. The power battery charging system for the kilometer meets the charging requirement of a high-power battery required by ship operation, and the development of a port intelligent energy system is promoted. The upper portion of the cabinet is provided with an air inlet channel, a fan bin and an air outlet channel, the fan drives the cabinet to play a role in heat dissipation, and the heat dissipation intensity can be controlled by adjusting the air quantity of the fan.

Description

High-power charger for ship power battery

Technical Field

The utility model relates to the technical field of ship power supply, in particular to a high-power charger for a ship power battery.

Background

With the continuous and rapid development of national economy and the increasing amount of shipping industry, the shipping industry causes the emission of more than 20% of sulfur dioxide and 8.9% of nitrogen oxides with about 5% of fuel consumption, and the emission of oil sewage caused by marine diesel engines accounts for 70% of the total amount of water body oil pollution. The diesel engine power system of the ship causes great pollution to the environment, about 2.1 million diesel engines and ships run in the Jinghang canal, about 48 million tons of oil are consumed each year, and accordingly 2151.3 million tons of atmospheric pollution, 4.2 million tons of NOX, 2.4 million tons of SOX and other waste gas are generated; approximately 1.2 million tons of oil contamination due to bilge water per year; the marine diesel engine noise on each ship is about 100 db. The influence on the cities along the river and the coast is huge, the wide attention is drawn, and the national governing department issues corresponding regulations and strictly controls the ship pollution.

Inland river (lake) pollution is becoming more and more serious. At present, diesel engines are mostly adopted as power for inland ships, the ships inevitably discharge oil pollution water and ship cabin washing water to water areas, and a large amount of harmful substances such as carbon oxides, nitrogen oxides, sulfur oxides and the like are discharged in the running process of the diesel engines, so that the water quality is obviously deteriorated.

Petrochemical energy is becoming exhausted. A report published by british oil company (BP) states that the oil reserves owned worldwide still last 40 years. Most of the ships use diesel engines as power sources at present, but with the exhaustion of petroleum, new power sources must be found in advance to maintain the development of the shipping industry.

With the development of the ship industry, the inland river basin fuel ship is expected to be gradually replaced by an electric ship. The electric ship is converted into electric driving power by the energy battery system on the ship to generate power by cooperating with or replacing fuel oil, so that the impact on the environment is reduced, and the energy consumption is reduced. The electric ship can greatly reduce the exhaust emission of ship exhaust, and partially or even realize zero emission, so that the application scale of the electric ship is rapidly enlarged, and the electric ship is expected to become a future development key point. Electric ships in China have good market opportunities in three fields, particularly inland water cargo ships, coastal urban ferry/sightseeing ships along rivers and port workboats, and a batch of demonstration projects are developed. The inland cargo ship has the largest market and the highest electric energy substitution potential. In recent years, due to rapid development of related technologies, reduction of battery prices and improvement of environmental requirements, high-power battery containers for electric ships are more widely used. The electric quantity of the power battery for the electric ship reaches megawatt level, and the shore charging time is short due to the particularity of ship operation, so that the problem of high-power charging of the power battery of the electric ship is urgently needed to be solved.

Disclosure of Invention

The utility model provides a charger capable of meeting the charging requirement of a ship high-power battery, aiming at solving the problem that the existing port shore power system cannot meet the charging requirement of the high-power battery required by ship operation.

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

the utility model provides a high-power machine that charges of boats and ships power battery, includes the rack, still includes fan, radiator, main circuit board and a plurality of circuit breaker, rack upper portion is equipped with into wind channel, fan storehouse and exhaust passage, go into wind channel, fan storehouse and exhaust passage intercommunication, the radiator sets up on going into the wind channel lateral wall, the fan sets up in the fan storehouse, and main circuit board and a plurality of circuit breaker set up in the rack lower part, the rack lower part communicates with each other with rack fan storehouse.

Preferably, the main circuit board comprises a direct current end, a common mode interference suppressor, a power module, a differential mode interference suppressor, a filtering module, a soft start module and an alternating current output module, wherein the output of the direct current end is connected with the input of the common mode interference suppressor through an alternating current breaker, the output of the common mode interference suppressor is connected with the input of the power module, the output of the power module is connected with the input of the filtering module, the output of the filtering module is connected with the input ends of the soft start module and the differential mode interference suppressor respectively, and the output end of the differential mode interference suppressor is connected with the alternating current output module.

The filtering module comprises a three-phase inductance module L1, a three-phase inductance module L2 and a three-phase capacitance module C1, wherein the input end of the three-phase inductance module L1 is connected with the output ends of HB5, HB6 and HB7 respectively, the output end of the three-phase inductance module L1 is connected with the input end of the three-phase inductance module L2, and the first lead end, the second lead end and the third lead end of the three-phase capacitance module C1 are connected with the output end of the three-phase inductance module L1 respectively. The filter module adopts an LCL filter circuit and uses a full current reactor.

The soft start module comprises a direct current breaker KM2, a resistor R41, a resistor R42, a resistor R43 and a soft start interface A1, wherein one end of the direct current breaker KM2 is connected with the filtering module, and three interfaces at the other end of the direct current breaker KM2 are respectively connected with three ports of the soft start interface A1 through a resistor R41, a resistor R42 and a resistor R43. The smaller the alternating current soft-start resistance value is, the smaller the voltage fluctuation is when the main contactor is in attraction, the smaller the voltage fluctuation is caused on the filter capacitor, but the larger the current is in a steady state, the larger the resistance loss is, and therefore the model of the soft-start resistor is RXLG 500W-3R KM.

The alternating current output module comprises an alternating current breaker QF3 alternating current output port A2, and the differential mode interference suppressor is connected with the alternating current output port A2 through the alternating current breaker QF 3.

The output end of the differential mode interference unit is also connected with a second lightning protection device FV2, the input end of the second lightning protection device is connected with the output end of the differential mode interference suppressor through a breaker QF5, and the output end of the second lightning protection device FV2 at the alternating current side is grounded.

The direct current end comprises a breaker QF1 and a breaker QF2, the breaker QF1 and the breaker QF2 are connected in parallel, and the breaker QF1 and the breaker QF2 do not share a negative electrode.

Preferably, the power module comprises a bleeder circuit, three power units HB4, HB5 and HB6 and a three-way LC filter, wherein the bleeder circuit is connected with the common mode interference suppressor in parallel, HB4 is connected with two ends of the bleeder circuit in parallel, HB5 is connected with two ends of HB4 in parallel, HB6 is connected with two ends of HB5 in parallel, and the three power units are arranged side by side. Each power unit of the three power units HB4, HB5 and HB6 arranged side by side comprises 6 direct current capacitors and two IGBTs, and the two IGBTs are connected to the 6 direct current capacitors through a common busbar. The power module further comprises a direct current sampling Hall I _ LEM1 and a plurality of alternating current sampling Hall, wherein the alternating current sampling Hall is I _ LEM2, I _ LEM3 and I _ LEM4 respectively, the direct current sampling Hall I _ LEM1 is arranged at the anode of the output end of the direct current filter, the I _ LEM2 is arranged at the output end of HB4, the I _ LEM3 is arranged at the output end of HB5, and the I _ LEM4 is arranged at the output end of HB 6. l _ LEM1 is a direct current sampling Hall, collects the voltage value of the direct current side, and is used for direct current overcurrent protection; the I _ LEM2, the I _ LEM3 and the I _ LEM4 are alternating current sampling Hall, and the sampling Hall adopts LV25-P/SP5 of LEM company to acquire the voltage value on the alternating current side.

Preferably, the lower part of the cabinet is provided with a back plate, and the back plate is provided with a vent hole.

Preferably, a first lightning protection device is further connected between the alternating current circuit breaker and the input end of the common mode interference suppressor, the positive electrode of the lightning protection device is connected with the positive electrode of the input end of the common mode interference suppressor, and the negative electrode of the first lightning protection device is connected with the negative electrode of the input end of the common mode interference suppressor.

Preferably, the fan model is GR35M-4 EK.4C.1R.

Preferably, the first lightning protection device is DG-M-YPV-SCI-1000-FM in model.

In conclusion, the utility model has the following beneficial effects: (1) the power battery charging system for the kilometer meets the charging requirement of a high-power battery required by ship operation, and the development of a port intelligent energy system is promoted. (2) The upper portion of the cabinet is provided with an air inlet channel, a fan bin and an air outlet channel, the fan drives the cabinet to play a role in heat dissipation, and the heat dissipation intensity can be controlled by adjusting the air quantity of the fan.

Drawings

Fig. 1 is a circuit diagram of a main circuit board according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a power unit according to an embodiment of the utility model.

FIG. 3 is a schematic diagram of a cabinet structure according to an embodiment of the present invention

In the figure: 1. the air inlet duct 2, the air outlet duct 3, the fan bin 4, the fan 5, the cabinet 6, the breaker 7, the main circuit board 8, the direct current capacitor 9 and the IGBT.

Detailed Description

The utility model is further described with reference to the following detailed description and accompanying drawings.

Example (b):

the high-power charger for the ship power battery comprises a cabinet 5, a fan 4, a radiator, a main circuit board 7 and a plurality of circuit breakers 6, wherein an air inlet channel 1, a fan 4 bin 3 and an air outlet channel 2 are arranged on the upper portion of the cabinet 5, the air inlet channel 1, the fan 4 bin 3 and the air outlet channel 2 are communicated, the radiator is arranged on the side wall of the air inlet channel 1, the fan 4 is arranged in the fan 4 bin 3, the main circuit board 7 and the circuit breakers are arranged on the lower portion of the cabinet 5, and the lower portion of the cabinet 5 is communicated with the fan 4 bin 3 of the cabinet 5.

The main circuit board 7 comprises a direct current end, a common mode interference suppressor, a power module, a differential mode interference suppressor, a filtering module, a soft start module and an alternating current output module, wherein the output of the direct current end is connected with the input of the common mode interference suppressor through an alternating current breaker, the output of the common mode interference suppressor is connected with the input of the power module, the output of the power module is connected with the input of the filtering module, the output of the filtering module is connected with the input ends of the soft start module and the differential mode interference suppressor respectively, and the output end of the differential mode interference suppressor is connected with the alternating current output module. The output voltage of the alternating current output end is 315V, and the maximum direct current side voltage is 1000V.

Still be connected with first lightning protection device between exchange circuit breaker and the common mode interference suppressor input, the lightning protection device positive pole is connected with common mode interference suppressor input positive pole, first lightning protection device negative pole is connected with common mode interference suppressor input negative pole. The first lightning protection device is DG-M-YPV-SCI-1000-FM.

The power module comprises a leakage loop, three power units HB4, HB5 and HB6 and three LC filters, wherein the leakage loop is connected with the common mode interference suppressor in parallel, HB4 is connected with two ends of the leakage loop in parallel, HB5 is connected with two ends of HB4 in parallel, and HB6 is connected with two ends of HB5 in parallel. The power module further comprises a direct current sampling Hall I _ LEM1 and a plurality of alternating current sampling Hall, wherein the alternating current sampling Hall is I _ LEM2, I _ LEM3 and I _ LEM4 respectively, the direct current sampling Hall I _ LEM1 is arranged at the anode of the output end of the direct current filter, the I _ LEM2 is arranged at the output end of HB4, the I _ LEM3 is arranged at the output end of HB5, and the I _ LEM4 is arranged at the output end of HB 6. Each power unit of the three power units HB4, HB5 and HB6 arranged side by side comprises 6 dc capacitors 8 and two IGBTs 9, and the two IGBTs 9 are connected to the 6 dc capacitors 8 through a common busbar. l _ LEM1 is a direct current sampling Hall, collects the voltage value of the direct current side, and is used for direct current overcurrent protection; the I _ LEM2, the I _ LEM3 and the I _ LEM4 are alternating current sampling Hall, the voltage value of an alternating current side is collected, the sampling Hall adopts LV25-P/SP5 of LEM company, and power is supplied to be positive and negative 15V.

The filtering module comprises a three-phase inductance module L1, a three-phase inductance module L2 and a three-phase capacitance module C1, wherein the input end of the three-phase inductance module L1 is connected with the output ends of HB5, HB6 and HB7 respectively, the output end of the three-phase inductance module L1 is connected with the input end of the three-phase inductance module L2, and the first lead end, the second lead end and the third lead end of the three-phase capacitance module C1 are connected with the output end of the three-phase inductance module L1 respectively.

The soft start module comprises a direct current breaker KM2, a resistor R41, a resistor R42, a resistor R43 and a soft start interface A1, wherein one end of the direct current breaker KM2 is connected with the filtering module, and three interfaces at the other end of the direct current breaker KM2 are respectively connected with three ports of the soft start interface A1 through a resistor R41, a resistor R42 and a resistor R43. The smaller the alternating current soft-start resistance value is, the smaller the voltage fluctuation is when the main contactor is in attraction, the smaller the voltage fluctuation is caused on the filter capacitor, but the larger the current is in a steady state, the larger the resistance loss is, and therefore the model of the soft-start resistor is RXLG 500W-3R KM. The time interval between the soft start and the main contactor is less than 5s, the soft start contactor is opened without the time, otherwise, the soft start resistor is burnt out. The steady state current can reach 34A, and the type of the contactor can be selected as follows: ABB A40-30-10 RC 5-1. The maximum direct current voltage is 1000V, the maximum current can reach 1200A, and 2 ABB T6S800 TMA800 FF 4P + RHE (accessories: 1Q +1 SY) direct current breakers KM2 can be selected and used in parallel.

The output end of the differential mode interference unit is also connected with a second lightning arrester, the input end of the second lightning arrester is connected with the output end of the differential mode interference suppressor through a breaker QF5, and the output end of the second lightning arrester is grounded. The alternating voltage is 315VAC, so that the alternating-current side lightning arrester FV2 adopts a phoenix lightning arrester model: VAL-MS PV/S-FM, breaker QF 5: ABB S263-C63A + S2-H11.

The bleeder circuit comprises a switch tube T1, a resistor R1, a diode D1 and a diode D2, wherein a collector of the switch tube T1 is connected with one end of a resistor R1, an emitter of the switch tube T1 is connected with the negative electrode of the output end of the common mode interference suppressor, the other end of the resistor R1 is connected with the positive electrode of the output end of the common mode interference suppressor, the switch tube T1 is connected with a diode D1 in parallel, and the resistor R1 is connected with a diode D2 in parallel.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms fan 4, bleed circuit, lightning arrester, parallel, soft start, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a boats and ships power battery high-power machine that charges, includes the rack, characterized by still includes fan, radiator, main circuit board and a plurality of circuit breaker, rack upper portion is equipped with into wind channel, fan storehouse and exhaust passage, go into wind channel, fan storehouse and exhaust passage intercommunication, the radiator sets up on going into the wind channel lateral wall, the fan sets up in the fan storehouse, and main circuit board and a plurality of circuit breaker set up in the rack lower part, the rack lower part communicates with each other with rack fan storehouse.

2. The high-power charger for the ship power battery according to claim 1, wherein the main circuit board comprises a direct current terminal, a common mode interference suppressor, a power module, a differential mode interference suppressor, a filter module, a soft start module and an alternating current output module, wherein the output of the direct current terminal is connected with the input of the common mode interference suppressor through an alternating current breaker, the output of the common mode interference suppressor is connected with the input of the power module, the output of the power module is connected with the input of the filter module, the output of the filter module is connected with the input ends of the soft start module and the differential mode interference suppressor respectively, and the output end of the differential mode interference suppressor is connected with the alternating current output module.

3. The high-power charger for the power battery of the ship as claimed in claim 2, wherein the power module comprises a bleed-off circuit, three power units HB4, HB5 and HB6, and three LC filters, wherein the bleed-off circuit is connected in parallel with the common mode interference suppressor, HB4 is connected in parallel at two ends of the bleed-off circuit, HB5 is connected in parallel at two ends of HB4, HB6 is connected in parallel at two ends of HB5, and the three power units are placed side by side.

4. The high-power charger for the ship power battery according to claim 3, wherein a back plate is arranged at the lower part of the cabinet, and a vent hole is formed in the back plate.

5. The high-power charger for the ship power battery according to claim 4, wherein a first lightning arrester is further connected between the AC circuit breaker and the input end of the common-mode interference suppressor, the positive electrode of the lightning arrester is connected with the positive electrode of the input end of the common-mode interference suppressor, and the negative electrode of the first lightning arrester is connected with the negative electrode of the input end of the common-mode interference suppressor.

6. The high-power charger for the power battery of the ship according to any one of claims 1 to 5, wherein the fan model is GR35M-4 EK.4C.1R.

7. The high-power charger for the power battery of the ship as claimed in claim 5, wherein the lightning protection device is DG-M-YPV-SCI-1000-FM.