CN112198436A - Auxiliary battery PACK system of fuel cell power system for laboratory - Google Patents
Auxiliary battery PACK system of fuel cell power system for laboratory Download PDFInfo
- Publication number
- CN112198436A CN112198436A CN202011144545.1A CN202011144545A CN112198436A CN 112198436 A CN112198436 A CN 112198436A CN 202011144545 A CN202011144545 A CN 202011144545A CN 112198436 A CN112198436 A CN 112198436A
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- Prior art keywords
- fuel cell
- contactor
- battery pack
- cell power
- power system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides an auxiliary battery PACK system of a laboratory fuel cell power system, which comprises: the method comprises the following steps: the system comprises a battery PACK PACK, a fuel cell FCU, a pre-charging contactor, a first contactor, a second contactor, a motor system MCU and a bidirectional DC/DC converter; the battery PACK and the fuel cell FCU are connected in parallel; the positive electrode of the fuel cell FCU is electrically connected with one end of the pre-charging contactor and one end of the first contactor respectively; the other end of the pre-charging contactor is electrically connected with one end of the resistor; the other end of the resistor is electrically connected with the other end of the first contactor; the positive and negative poles of the motor system MCU and the bidirectional DC/DC converter are respectively connected to the positive and negative poles of the fuel cell FCU through the contactor. The invention has the beneficial effects that: the auxiliary battery PACK can be quickly increased or decreased according to the power requirement of the fuel cell power system, and the experimental verification requirement is facilitated.
Description
Technical Field
The invention relates to the field of fuel cell hydrogen energy automobile power systems, in particular to an auxiliary battery PACK system of a fuel cell power system for a laboratory.
Background
The fuel cell hydrogen energy automobile as a new energy driving automobile has the advantages of energy saving, no pollution, high efficiency, low noise and the like, and is an ideal development direction in the future. However, when the system is heated and started in winter, and various road conditions are accelerated and decelerated instantly, large current needs to be provided instantly or other components need to absorb excessive energy instantly. Fuel cell power systems of different powers need to be matched with battery packs of different electric quantities. It is necessary to test battery packs with different electric quantities under experimental conditions to meet the requirements of working conditions.
Disclosure of Invention
Aiming at the technical problems that the electric quantity of a battery PACK required to be matched needs to be changed synchronously due to the change of power of a fuel cell power system, and the battery PACKs with different electric quantities need to be tested under experimental conditions to meet the requirements of working conditions, the invention provides the technical scheme for designing the auxiliary battery PACK system of the fuel cell power system for laboratories.
The utility model provides an auxiliary battery PACK system of fuel cell power system is used in laboratory, includes: the system comprises a battery PACK PACK, a fuel cell FCU, a pre-charging contactor, a first contactor, a second contactor, a motor system MCU and a bidirectional DC/DC converter;
the battery PACK PACK is connected with the fuel cell FCU in parallel;
the anode of the fuel cell FCU is electrically connected with one end of the pre-charging contactor and one end of the first contactor respectively;
the other end of the pre-charging contactor is electrically connected with one end of the resistor; the other end of the resistor is electrically connected with the other end of the first contactor;
the positive electrode of the motor system MCU and the positive electrode of the bidirectional DC/DC converter are connected to the positive electrode of the fuel cell FCU through the first contactor; and the cathode of the motor system MCU and the cathode of the bidirectional DC/DC converter are electrically connected with the cathode of the fuel cell FCU through the second contactor.
Further, the battery PACK includes: a plurality of nickel-metal hydride batteries NIHI, and the number of the nickel-metal hydride batteries NIHI is selected according to specific needs.
Furthermore, a contactor is connected between the positive electrodes of every two adjacent nickel-metal hydride batteries NIHI, and the number of the nickel-metal hydride batteries NIHI is controlled by controlling the opening and closing of the contactor.
Furthermore, a fuse is connected between the positive electrode of each nickel-metal hydride battery NIHI and the corresponding contactor; the positive electrode of the fuel cell FCU is connected with a fuse; the positive pole of the motor system MCU and the positive pole of the bidirectional DC/DC converter are both connected with fuses, the fuses are used for protecting all components, and fusing currents of the fuses are selected according to specific needs.
The technical scheme provided by the invention has the beneficial effects that: the invention designs an auxiliary battery PACK system of a laboratory fuel cell power system, which can be matched with a plurality of groups of PACKs (nickel-hydrogen batteries NIHI) at the same time, increase or reduce the PACKs (nickel-hydrogen batteries NIHI) according to the requirements of the system and working conditions, realize the balance and consistency among the PACKs (nickel-hydrogen batteries NIHI) on the optimized working performance among the PACKs (nickel-hydrogen batteries NIHI), and prolong the service life of the fuel cell power system.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic diagram of a system structure of an auxiliary battery PACK system of a laboratory fuel cell power system according to the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of a system structure of an auxiliary battery PACK system of a laboratory fuel cell power system.
The technical scheme provided by the invention is to design an auxiliary battery PACK system of a fuel cell power system for a laboratory.
The invention discloses an auxiliary battery PACK system of a laboratory fuel cell power system, which comprises: the system comprises a battery PACK PACK 01, a fuel cell FCU 4, a pre-charging contactor 7, a first contactor 9, a second contactor 12, a motor system MCU 10 and a bidirectional DC/DC converter 11;
the battery PACK PACK 01 is connected with the fuel cell FCU 4 in parallel;
the anode of the fuel cell FCU 4 is electrically connected with one end of the pre-charging contactor 7 and one end of the first contactor 9;
the other end of the pre-charging contactor 7 is electrically connected with one end of a resistor 8; the other end of the resistor 8 is electrically connected with the other end of the first contactor 9;
the positive and negative electrodes of the motor system MCU 10 and the positive and negative electrodes of the bidirectional DC/DC converter 11 are respectively and correspondingly electrically connected with the positive and negative electrodes of the fuel cell FCU 4;
and a second contactor 12 is connected in series between the fuel cell FCU 4 and the motor system MCU 10 and between the two-way DC/DC converter 11.
The battery PACK 01 is formed by electrically connecting a plurality of nickel-metal hydride batteries NIHI in parallel;
the plurality of nickel-metal hydride battery NIHIs are all electrically connected with the contactor, and the number of the nickel-metal hydride battery NIHIs is controlled by controlling the opening and closing of the contactor, so that the battery PACK matched with fuel cell systems with different powers and different electric quantities is realized.
In a specific embodiment, the battery PACK 01 of the invention selects three nickel-hydrogen batteries NIHI, which are respectively called as a first PACK 1, a second PACK 2, a third PACK 3 and a fuel cell power system, when the fuel cell power system starts to work, the power is relatively low, the requirement on the electric quantity is relatively low, at this time, only the third PACK 3 needs to be accessed to provide the electric quantity needed in the early stage, according to the requirement of working conditions, the third PACK 3 may not meet the requirement when the fuel cell power system works with large current for a long time, and at this time, contactors connected with the first PACK 1 and the second PACK 2 need to be properly closed according to the current of the fuel cell power system and the pressure difference among the first PACK 1, the second PACK 2 and the third PACK 3, so as to increase the total electric quantity of the auxiliary battery PACK 01.
The concrete conditions are as follows: third PACK 3 can't satisfy the long-time heavy current requirement of fuel cell power system, fuel cell power system's operating speed can reduce this moment, the electric current can suitably reduce, fuel cell FCU 4 reaches unanimity for third PACK 3 and second PACK 2's supply voltage simultaneously, the contactor that second PACK 2 was connected this moment can be closed, third PACK 3 and second PACK 2 give the system power supply simultaneously, along with fuel cell power system further improves to the electric current requirement, the contactor that first PACK 1 was connected also can be closed according to the voltage condition, supply power for fuel cell power system, verify whether fuel cell power system can satisfy the operating requirement through the operating mode test in the laboratory simultaneously.
The invention designs an auxiliary battery PACK system of a laboratory fuel cell power system, which can be matched with a plurality of groups of PACKs (nickel-hydrogen batteries NIHI) at the same time, increase or reduce the PACKs (nickel-hydrogen batteries NIHI) according to the requirements of the system and working conditions, realize the balance and consistency among the PACKs (nickel-hydrogen batteries NIHI) on the optimized working performance among the PACKs (nickel-hydrogen batteries NIHI), and prolong the service life of the fuel cell power system.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an auxiliary battery PACK system with fuel cell power system, its characterized in that includes: the system comprises a battery PACK PACK (01), a fuel cell FCU (4), a pre-charging contactor (7), a first contactor (9), a second contactor (12), a motor system MCU (10) and a bidirectional DC/DC converter (11);
the battery PACK PACK (01) and the fuel cell FCU (4) are connected in parallel;
the positive electrode of the fuel cell FCU (4) is electrically connected with one end of the pre-charging contactor (7) and one end of the first contactor (9) respectively;
the other end of the pre-charging contactor (7) is electrically connected with one end of the resistor (8); the other end of the resistor (8) is electrically connected with the other end of the first contactor (9);
the positive electrode of the motor system MCU (10) and the positive electrode of the bidirectional DC/DC converter (11) are connected to the positive electrode of the fuel cell FCU (4) through a first contactor (9); the cathode of the motor system MCU (10) and the cathode of the bidirectional DC/DC converter (11) are electrically connected with the cathode of the fuel cell FCU (4) through a second contactor (12).
2. The auxiliary battery PACK system for a laboratory fuel cell power system according to claim 1, wherein said battery PACK (01) comprises: a plurality of nickel-metal hydride batteries NIHI.
3. The auxiliary battery PACK system for the laboratory fuel cell power system according to claim 2, wherein a contactor is connected between the positive electrodes of every two adjacent nickel-metal hydride batteries NIHI, and the number of the connected nickel-metal hydride batteries NIHI is controlled by controlling the opening and closing of the contactor.
4. The auxiliary battery PACK system of the laboratory fuel cell power system according to claim 2, wherein a fuse is connected between the positive electrode of each nickel-metal hydride battery NIHI and the corresponding contactor; the positive electrode of the fuel cell FCU (4) is connected with a fuse; the positive electrode of the motor system MCU (10) and the positive electrode of the bidirectional DC/DC converter (11) are both connected with fuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144545.1A CN112198436A (en) | 2020-10-23 | 2020-10-23 | Auxiliary battery PACK system of fuel cell power system for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144545.1A CN112198436A (en) | 2020-10-23 | 2020-10-23 | Auxiliary battery PACK system of fuel cell power system for laboratory |
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| Publication Number | Publication Date |
|---|---|
| CN112198436A true CN112198436A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011144545.1A Pending CN112198436A (en) | 2020-10-23 | 2020-10-23 | Auxiliary battery PACK system of fuel cell power system for laboratory |
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| CN (1) | CN112198436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977175A (en) * | 2021-03-19 | 2021-06-18 | 黄冈格罗夫氢能汽车有限公司 | Pre-charging system for hydrogen energy automobile fuel cell bus |
-
2020
- 2020-10-23 CN CN202011144545.1A patent/CN112198436A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977175A (en) * | 2021-03-19 | 2021-06-18 | 黄冈格罗夫氢能汽车有限公司 | Pre-charging system for hydrogen energy automobile fuel cell bus |
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