TW201502550A - Battery test system with energy regeneration function - Google Patents

Abstract

The present invention relates to a battery test system with an energy regeneration function. The invention mainly comprises an energy conversion module electrically connected to a mains supply, a DC exchange module electrically connected to the energy conversion module, at least one charge-discharge module electrically connected to the DC exchange module, and at least one battery electrically connected to the charge-discharge module. The invention is mainly characterized in that if there is a charge-discharge module in the system charging a battery while another charge-discharge module in the system is discharging another battery, the DC exchange module can charge the battery with the electricity released from other batteries. On the other hand, if there is no charge-discharge module in the system discharging a battery, then the energy conversion module converts an AC power supply of the mains supply into a DC power, and the DC exchange module transfers the electricity to the battery. Moreover, if the charge-discharge module in the system attempts to discharge a battery, but other charge-discharge modules do not need to charge any battery, then the energy conversion module may convert the released DC power into AC power for being recycled by the mains supply.

Description

Battery test system with energy regeneration function

The invention provides a battery testing system, in particular, a direct current can be directly recovered, so that the direct current energy released by the discharging process can be directly supplied to the charging process, and in addition, when there is excess direct current energy in the system, The new battery test system converts back to AC energy and incorporates the mains load.

Press, generally brand new battery or battery module, there will be a program to correct the state of charge (SOC) in the manufacturing process, mainly including 0% of discharge to storage capacity (SOC), fully charged, fully discharged, and Three steps, such as charging to 50% of the stored electricity (SOC), similarly, the same test and calibration procedure must be experienced after the power battery is switched to secondary application. However, the battery or battery module experiences discharge or complete In the discharge step, the energy discharged is generally directly wasted as heat energy, and can no longer be reused in the power mode, resulting in a little waste.

Therefore, in order to solve the above problems, for example, the Republic of China Patent No. M453972 discloses a battery test system with energy cycle, including a battery pack to be tested, a power storage module, a bidirectional conversion module and a control module, wherein the control The module can control the bidirectional conversion module, so that the storage module discharges and charges the battery pack to be tested, or the battery pack to be tested is discharged and the storage module is charged, thereby being recyclable Electricity generates secondary electricity.

In other words, when charging is to be performed, the control module directly inputs power to the first bidirectional conversion module (that is, the charging and discharging machine). If it is to be discharged, the excess power is stored in the storage module. If you want to recharge in the future, you will judge whether the power storage module has power. If there is electricity, it will directly output power from the power storage module without having to take power from the controller again.

However, when the above battery test system with energy cycle is used, the following problems and defects are still to be improved: because, in order to achieve the purpose of energy cycle, it is necessary to have a power storage module to operate, in other words, That is to increase the cost of adding a power storage module structure. If the power storage module is damaged, the energy circulation effect cannot be generated, and the power storage module also has the risk of losing power.

Therefore, how to solve the above problems and deficiencies in the above-mentioned applications, that is, the inventors of the present invention and those involved in the industry are eager to study the direction of improvement.

Therefore, the inventors of the present invention have collected the relevant materials in view of the above-mentioned deficiencies, and through multi-party evaluation and consideration, and through years of experience accumulated in the industry, through continuous trial and modification, the DC power can be directly recovered. The invention of the battery test system for allowing the direct current energy released by the discharge process to be directly supplied to the charging process and being converted into alternating current energy when there is excess direct current energy in the system, and having the direct current and alternating current energy return function Patent holder.

The main purpose of the present invention is that direct current (DC) can be directly recycled and reused, so that the direct current energy released by the battery in the discharge can be directly supplied to the battery to be charged, and the direct current energy in the system is not fully used. At the same time, the system can also convert it into AC energy, thereby achieving the advantages of grid recovery, power output quality optimization, high conversion efficiency and high power factor.

The main structure capable of achieving the above object includes an energy conversion module, a DC power exchange module, at least one charge and discharge module, and at least one battery, wherein the connection relationship of the components is the energy conversion module and the utility power. The connection, and the DC power exchange module and the energy conversion module are electrically connected, and the charging and discharging module is electrically connected to the DC power exchange module. Finally, the battery and the charging and discharging module are electrically connected, and one of the charging and discharging modules is used as one of the charging and discharging modules. If the battery to be connected is to be charged, if other charging and discharging modules in the system are discharging the connected battery, the battery can be discharged through the DC switching module. The electric energy is directly supplied to the battery for charging operation, and if no other charging/discharging module is to discharge the battery to which the connected battery is being discharged or other charging and discharging modules are not enough to fully satisfy the energy When the energy required for charging is used, the energy conversion module converts the commercial alternating current into direct current and then transmits the power to the electricity through the direct current switching module. Moreover, if the charging and discharging module wants to discharge the battery connected thereto, but the other charging and discharging modules do not charge the battery or the DC energy in the system cannot be completely recovered, the energy conversion module will be released. The direct electrical energy is converted back to the alternating current energy and incorporated into the mains load for recovery.

With the above technology, it is necessary to have a power storage module for the conventional battery test system with energy cycle to operate, in other words, the cost of adding a power storage module structure is increased, if the storage mode is If the group is damaged, the effect of the energy cycle cannot be produced, and the problem that the power storage module also has the risk of losing power and the like is broken, and the practical progress of the present invention as the above advantages is achieved.

1‧‧‧ energy conversion module

2‧‧‧DC power exchange module

3‧‧‧Charge and discharge module

4‧‧‧Battery

5‧‧‧Power

A‧‧‧Battery

B‧‧‧Battery

C‧‧‧Battery

The first figure is a block diagram of a preferred embodiment of the invention.

The second drawing is a schematic view of the implementation of the first preferred embodiment of the present invention.

The third figure is a schematic diagram of the implementation of the second preferred embodiment of the present invention.

Referring to the first embodiment, which is a block diagram of a preferred embodiment of the present invention, it can be clearly seen from the figure that the present invention includes an energy conversion module 1 connected to a mains and energy conversion. The module 1 can perform AC/DC conversion and change voltage; a DC power exchange module 2 electrically connected to the energy conversion module 1 is capable of receiving the mains 5 electric energy and returning electric energy to the commercial power 5, and the DC power exchange module 2 A DC bus; at least one charging and discharging module 3 is electrically connected to the DC power exchange module 2; and at least one battery 4 electrically connected to the charging and discharging module 3, the battery 4 is rechargeable and dischargeable Battery 4.

Please refer to the second figure, which is a schematic diagram of the implementation of the first preferred embodiment of the present invention. As can be clearly seen from the figure, for example, the battery is divided into battery A, battery B and battery C, and battery A When the battery is to be charged by the corresponding charging and discharging module 3, and the charging and discharging module 3 of the battery B and the battery C is not discharged, or the discharging process of the other charging and discharging module is insufficient, the energy provided by the discharging process is not sufficient. When the energy required for charging is satisfied, the power of the battery A is converted by the commercial power 5 through the energy conversion module 1 and then distributed to the battery A by the DC power exchange module 2 for charging, as the name suggests, when the battery B and the battery C have no discharge demand. At the time, the electric energy received by the battery A is directly transmitted by the mains 5 for charging.

Referring to the third embodiment, which is a schematic diagram of the implementation of the second preferred embodiment of the present invention, it can be clearly seen from the figure, for example, when the battery A is to be charged, and the battery B or the battery C is When one or both of the power is being discharged, the power released by the battery B or the battery C is directly distributed to the battery A by the direct current exchange module 2 to directly discharge the electric energy discharged from the battery B or the battery C being discharged. After the battery A is saturated, the excess energy is fed back to the mains 5. In other words, if battery B or battery When discharging C, if the battery A has no charging demand or the direct current energy in the system cannot be completely recovered, the electric energy is converted into an alternating current AC via the energy conversion module 1 and fed back to the mains 5 load to be connected to the grid.

Therefore, the key to improving the conventional use of the battery test system with energy regeneration function of the present invention is:

The direct current (DC) can be directly recycled and reused, so that the direct current energy released by the battery 4 in the discharge can be directly supplied to the battery 4 to be charged, and if the direct current energy in the system is not fully used, the energy conversion mode Group 1 can convert DC power into AC power and merge into the mains 5 load, thereby achieving the advantages of grid recovery, power output quality optimization, high conversion efficiency and high power factor.

However, the above description is only for the preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, so that the simple modification and equivalent structural changes that are made by using the specification and the contents of the present invention should be the same. It is included in the scope of the patent of the present invention and is combined with Chen Ming.

In summary, the battery test system with energy regeneration function of the present invention can achieve its efficacy and purpose when used, so the invention is an invention with excellent practicability, and is an application for conforming to the invention patent, Applying according to law, I hope that the trial committee will grant the invention as soon as possible to protect the inventor's hard work. If there is any doubt in the trial committee, please do not hesitate to give instructions, the inventor will try his best to cooperate and feel punished.

1‧‧‧ energy conversion module

2‧‧‧DC power exchange module

3‧‧‧Charge and discharge module

4‧‧‧Battery

5‧‧‧Power

Claims (4)

A battery testing system with energy regeneration function mainly comprises: an energy conversion module, which is connected with a mains electricity; a DC power exchange module electrically connected with the energy conversion module is capable of receiving mains power and feedback The electric energy is supplied to the commercial power; at least one charging and discharging module is electrically connected to the DC electric switching module; and at least one battery electrically connected to the charging and discharging module. The battery test system with energy regeneration function according to claim 1, wherein the DC power exchange module is a DC bus. The battery test system with energy regeneration function according to claim 1, wherein the energy conversion module is capable of converting AC and DC and changing voltage. The battery test system with energy regeneration function according to claim 1, wherein the battery is a rechargeable battery.