KR101915876B1 - Eco-friendly Energy Storage System - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environmentally friendly ESS (Energy Storage System), and more particularly, to an ESS (Energy Storage System) including an ESS battery, a transformer TR, a converter, Friendly ESS for minimizing the constant temperature and humidity power consumption by optimizing the arrangement using convection and conduction characteristics.
The eco-friendly ESS according to an embodiment of the present invention includes a main body of a rectangular body having an inner space defined by upper and lower portions, a battery rack portion arranged on both sides of the upper portion so as to store the battery, A power control unit (PCS) for managing the power of the battery; an air conditioner installed at the lower portion of the air conditioner and spaced apart from the power control unit by a predetermined distance; A first air conditioning pipe formed with a plurality of air outlets; and an air outlet formed at both sides of a predetermined height of the lower layer portion so that the air outlet is formed at the center and is branched so that one side is connected to the first air conditioning pipe and the other side is passed through the upper side A second air-conditioning pipe protruding from the outside at a predetermined height to form an outside air outlet; And a support for supporting presented.
In addition, an air conditioning valve is provided between the first air-conditioning pipe and the second air-conditioning pipe, and a discharge valve is provided between the outlet of the outside air and the opening of the air- The air conditioning air flows along the first and second air-conditioning pipes to maintain the constant temperature inside the main body through the air outlet and the air outlet, close the air conditioning valve at the time of cooling, open and adjust the discharge valve, open the air conditioning valve The discharge valve can be closed and adjusted.

Description

Eco-friendly ESS {Eco-friendly Energy Storage System}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environmentally friendly ESS (Energy Storage System), and more particularly, to an ESS (Energy Storage System) including an ESS battery, a transformer TR, a converter, Friendly ESS for minimizing the constant temperature and humidity power consumption by optimizing the arrangement using convection and conduction characteristics.

Energy demand has been on an increasing trend every year due to recent high oil prices and widespread use of heating and cooling equipment due to unusual climate change. In addition, new demand for energy continues to increase due to income increase, quality of life improvement, and various service upgrading demands, and direct power dependency is intensified, causing disruption in supply and demand. Especially, in summer and winter every year, there are power problems such as 'power crisis' and 'energy saving'. In addition, since many domestic energy sources depend on crude oil and nuclear power, improvement of energy supply and demand is urgent national task.

ESS (Energy Storage System) is one of the ways to solve this power crisis. ESS is a device that can save surplus electricity or make electricity using renewable energy available at the required time. It stores idle electric power at a time when electricity demand is low, So that power can be utilized stably.

Therefore, the importance of ESS, which is one of the new growth engine industry, is getting more and more important because it can save energy and use it when needed, thereby improving the efficiency of energy use, improving the utilization of renewable energy and stabilizing the power supply system.

Generally, ESS is used to stabilize the output when generating excess energy, such as storage devices, solar power, wind power, etc., which transmit electricity when power shortage occurs, but it can also be used in emergency situations such as power outage It is also used as a core infrastructure for the diffusion of electric vehicles.

In addition, it is noted that it is possible to save the electric charge by allowing the battery to store the nighttime power at home and use it for the peak time, and a lithium ion battery is used as the ESS storage method.

Recently, as a part of the mobile ESS that maximizes the advantage of the container, it is applying the container system which exploited the megawatt ESS at several hundred kWh.

In connection with such a technique, a conventional ESS container technology is disclosed in Japanese Patent No. 1381592, and the structure thereof is shown in Fig. 1, which includes an upper plate 10, a lower plate 20, a side wall 30, The upper and lower walls 10 and 30 are formed by the double partition wall 11 and the end door 40 is formed in the inner space 50. [ A double transparent door 51 is installed at a predetermined distance from the energy storage device, and a cradle 52 for storing the energy storage device is disposed.

At this time, a solar panel 12 is formed on the outer surface of the upper plate 10, and a support table 21 is provided on the lower surface of the lower plate 20 to separate the container from the ground at a predetermined interval, (30) is further provided with a connection portion (31) through which an external line can be inserted so as to be connected to an external power converter or the like.

A thermostatic and hygroscopic device 61 is installed at one end of the side wall 30 of the internal space 50 and an automatic fire hydrant 62 is installed close to the thermostatic and hygroscopic device 61, A sensor 64 is installed in the vicinity of the IP CCTV 63 and the upper plate 10 of the internal space 50 is provided with an IP CCTV 63, A sprinkler 65 is installed at one end and a control unit 66 is provided for monitoring the internal situation of the container in real time in cooperation with each of the devices.

In ESS, battery efficiency and lifetime are closely related to temperature.

Lithium battery has the best characteristics at 25 ℃. Electricity is generated by jule heat caused by energization. The electric charge or discharge time is about 9 hours during the day and 15 hours is in the standby state. The amount of heat inside the container is all the unloaded hands of the transformer.

Therefore, in Korea, where the average annual temperature is 10 ~ 15 ℃, the temperature should be kept about 10 ℃ higher than the ambient temperature. On the other hand, during the peak temperature time of 23 ~ 26 ℃ in summer, the cooling equipment needs to operate as much heat as possible. In winter when the minimum temperature is -6 ~ 3 ℃, to minimize heat consumption, Although it is required to utilize the characteristics of conduction to the maximum, there is a problem in that the above-mentioned prior art can not satisfy such a demand.

Korean Patent Registration No. 10-1381592, entitled "Container for energy storage device" (Registered on March 31, 2014).

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide an ESS battery, a transformer TR, a converter, an SWGR, The purpose of this paper is to provide an eco-friendly ESS that can minimize the power consumption of constant temperature and humidity by optimizing the placement using characteristics.

In order to achieve the above object, an eco-friendly ESS according to an embodiment of the present invention includes a main body of a rectangular body having an inner space divided into an upper layer portion and a lower layer portion, a battery rack portion arranged on both sides of the upper layer portion, A power adjusting unit (PCS) installed at the lower portion and managing the power of the battery; an air conditioner installed at the lower portion of the air conditioner and spaced apart from the power adjusting unit by a predetermined distance; A first air-conditioning pipe having a plurality of air discharge openings formed in a direction crossing the center in the direction of the first air-conditioning pipe, a suction port formed at both sides of a predetermined height of the lower- And the other side thereof penetrates through the upper layer portion and protrudes outside to a predetermined height to form an outside air discharge port; From the floor and a support for supporting spaced a predetermined height.

In addition, an air conditioning valve is provided between the first air-conditioning pipe and the second air-conditioning pipe, and a discharge valve is provided between the outlet of the outside air and the opening of the air- The air conditioning air flows along the first and second air-conditioning pipes to maintain the constant temperature inside the main body through the air outlet and the air outlet, close the air conditioning valve at the time of cooling, open and adjust the discharge valve, open the air conditioning valve The discharge valve can be closed and adjusted.

According to the present invention, it is possible to reduce power dissipation by reducing the heat radiation to the container enclosure from 6W / m < 2 > K to 3W / m < 2 > have.

In addition, the arrangement structure that reduces the upper and lower battery temperature difference in the upper layer portion 110a to less than 50% of the conventional one and the heat transfer between the upper and lower portions of the upper layer portion 110a are formed by inverting the oven, There is an advantage that the loss due to the start / stop of the thermo-hygrostat facility can be excluded in the waiting time of about 30 minutes when the charge-standby-discharge mode is changed by the non-conduction method.

In addition, the lower part 110b of the inner volume of the main body 110 has an advantage that the same effect can be expected without applying a separate constant temperature and humidity, the capacity of the constant temperature and humidity control facility can be reduced to 50% Or more.

1 is a perspective view showing an internal structure of a conventional energy storage container.
2 is a schematic perspective view showing an internal structure of an environment-friendly ESS according to an embodiment of the present invention.
3 is a schematic front view showing an environment-friendly ESS according to an embodiment of the present invention.
4 is a schematic plan view showing an environment-friendly ESS according to an embodiment of the present invention.
5 is a schematic bottom view of an environmentally friendly ESS according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of an eco-friendly ESS according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, "includes." Or "have." , Etc. are intended to designate the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, may be combined with one or more other features, steps, operations, components, It should be understood that they do not preclude the presence or addition of combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the term "part" or the like, as described in the specification, means a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It will be appreciated that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

3 is a schematic front view showing an environment-friendly ESS according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of the environmentally friendly ESS according to an embodiment of the present invention. 1 is a schematic plan view showing an environment-friendly ESS according to an embodiment of the present invention.

FIG. 5 is a schematic bottom view showing an environment-friendly ESS according to an embodiment of the present invention, and FIG. 6 is a schematic system configuration diagram of an environment-friendly ESS according to an embodiment of the present invention.

Referring to FIG. 2, the environmentally friendly ESS 100 proposed in the present invention includes a main body 110 in which an internal space is formed is divided into an upper layer portion 110a and a lower layer portion 110b, and an ESS battery 121 is formed in the upper layer portion 110a And the air conditioning unit 140 is provided in the lower layer portion 110b to supply the air conditioning air to the stored ESS battery 121 to maintain the constant temperature and humidity.

2, the environmentally friendly ESS 100 according to an embodiment of the present invention includes a rectangular main body 110 having an inner space defined by an upper layer 110a and a lower layer 110b, A battery shelf 120 arranged on both sides of the upper portion 110a so as to store the battery 121 and a power control unit PCS installed on the lower portion 110b for managing the power of the battery 121 An air conditioner 140 disposed at the lower portion 110b and spaced apart from the power controller 130 by a predetermined distance; A first air conditioning pipe 150 having a plurality of air outlets 153 formed therein and a suction port 165 formed on both sides of a predetermined height of the lower layer portion 110b and being centered and branched One side of which is connected to the first air conditioning pipe 150 and the other side of which is connected to the upper layer portion 110a And includes a support portion 170 for supporting spaced a predetermined height is a predetermined height protrude to the outside and the outdoor air outlet 163 is formed a second air-conditioning pipe 160 that is, the body portion 110 from the bottom.

An air conditioning valve 151 is provided between the first air-conditioning pipe 150 and the second air-conditioning pipe 160 to be able to open and close, and a discharge valve 161 is provided between the branched air- So that it can be opened and closed.

The air conditioning apparatus 140 is also provided with air conditioning air flowing along the first and second air conditioning pipes 150 and 160 to maintain a constant temperature inside the main body 110 through the air outlet 153 and the air outlet 165 do.

Further, the air conditioning valve 151 may be closed and the discharge valve 161 may be opened to control the air conditioning, and when the air conditioner is heated, the air conditioning valve 151 may be opened and the discharge valve 161 may be closed.

Also, the first air-conditioning pipe 150 is connected to one side of the battery rack part 120 and the air-conditioning temperature in the first air-conditioning pipe 150 can be conducted.

In addition, an outside air intake port 167 is formed at a lower side of the lower portion 110b to allow air to flow from the outside, to move along the second air conditioning pipe 160, and to be discharged to the outside through the outside air outlet 163.

The air supply device 180 may further be provided between the air conditioning device 140 and the air outlet 153 of the first air-conditioning pipe 150.

Hereinafter, the components of the environmentally friendly ESS 100 according to an embodiment of the present invention will be described in detail.

As shown in FIGS. 2 and 3, the body 110 has a rectangular or rectangular parallelepiped shape having an internal space defined by an upper layer 110a and a lower layer 110b. The body 110 includes a battery rack 120 A power control unit 130, an air conditioner 140, and the like.

Particularly, the main body 110 has a partition plate 111 for dividing the inner space closed at four sides into upper and lower layers 110a and 110b, and a large amount of batteries 121 having a high calorific value Since the battery rack unit 120 is disposed in the upper layer portion 110a, it has a structure capable of reducing electricity consumption required for constant temperature and humidity.

The main body 110 can divide the space in which the power control unit 130 to be described later is installed into the electric room unit 110b-1 by bisecting the lower layer portion 110b.

In addition, the main body 110 may further include fire fighting equipment for suppressing a fire, a transformer TR for taking charge of step-up and step-down, and a switchgear SWGR for blocking and inputting the system have.

In addition, due to the structural features of the main body 110, a battery of the ESS in which the upper portion 110a formed with the internal space is embedded, a transformer TR installed at the lower portion, a converter, a switchgear SWGR, Eco-friendly ESS proposed by the present invention for minimizing the constant temperature and humidity power consumption by optimizing the arrangement using convection and conduction characteristics.

In addition, the main body 110 may be implemented as a container for cargo transportation.

Accordingly, the eco-friendly ESS 100 according to an embodiment of the present invention can be unloaded to the transportation means by means of a transportation facility established in the past in order to cargo-work the container to a transportation means such as a ship, an aircraft, . Therefore, the eco-friendly ESS 100 according to the embodiment of the present invention does not need to newly provide a separate transportation facility, so that it is possible to reduce the construction cost for newly installing the transportation facility. In addition, the eco-friendly ESS 100 according to one embodiment of the present invention can be installed and used in a state of transportation, thereby improving ease of transportation and installation.

Also, the main body 110 may be a 20 FT container or a 40 FT container, and the present invention uses a 40 FT container as an example.

The battery rack unit 120 is a frame in which a battery rack capable of mounting a plurality of batteries 121 is arranged as shown in FIGS. 3 and 4, Are arranged on both sides of the formed upper layer portion 110a.

That is, the battery rack unit 120 includes at least one battery rack 123. The battery racks 123 may accommodate at least one battery 121, respectively.

In addition, the battery rack portion 120 is installed inside the upper layer portion 110a. A plurality of battery racks 123 may be installed in the upper portion 110a. In this case, the battery racks 123 are disposed adjacent to each other along one row to constitute the battery rack unit 120. In FIG. 4, two rows of battery racks 123 belonging to the battery rack unit 120 are installed on one side of the upper layer portion 110a by 24 rows.

Therefore, since the battery rack 120 is arranged on both sides of the upper layer portion 110a and is arranged so as to provide a clearance space at the center of the upper layer portion 110a, the present invention can efficiently discharge the heat generated from the battery 121 And the air conditioning air is supplied from the air outlet 153 of the first air conditioning pipe 150 to be described later, so that the effective constant temperature and humidity can be maintained.

The power conditioning system (PCS) 130 is installed in the lower portion 110b of the main body 110 to manage the power of the battery 121 as shown in FIG. 2 and FIG.

More specifically, the power regulator 130 is installed inside the electric room 110b-1 in the lower layer portion 110a, and a plurality of the electric power regulator 130 can be installed. In this case, the power control units 130 may be disposed adjacent to each other along one row.

2, 3, and 5, the air conditioner 140 is installed inside the lower layer portion 110b, which is a space excluding the electric room portion 110b-1, and is spaced apart from the power control portion 130 by a predetermined distance .

In addition, the air conditioner 140 can supply cold air for cooling the battery 121 in summer and warm air to maintain a predetermined indoor temperature in winter.

That is, the air conditioner 140 supplies cooling air when it rises above a suitable temperature for cooling and heating, and supplies warm air when it falls below an appropriate temperature.

Accordingly, the air conditioning apparatus 140 can generate cold air so that the battery 121 can always be maintained at a proper room temperature, recover cold air while generating hot air,

The air conditioner 140 also has a humidity control function for adjusting the humidity of the space where the battery 121 is installed.

2 to 5, the first air conditioning pipe 150 is drawn out from the air conditioning apparatus 140, passes through the center in the longitudinal direction of the upper layer portion 110a, and has a plurality of air discharge openings 153 do.

Accordingly, the first air-conditioning pipe 150 is provided with a passage for receiving the air-conditioning air from the air-conditioning device 140 and discharging the air to the inside of the upper layer portion 110a through the plurality of air discharge ports 153.

Here, the first air conditioning pipe 150 is connected to the air conditioner 140 installed in the lower portion 110b to form a passageway, and a passageway extending upwardly and extending upwardly is formed in the upper passageway 100a And the air outlet port 153 is formed for each of the branched portions so that the air-conditioned air flows into the upper layer portion 100a, Lt; / RTI > That is, the first air-conditioning pipe 150 is connected to one side of the battery rack unit 120 and the air-conditioning temperature in the first air-conditioning pipe 150 can be conducted.

As shown in FIGS. 2 and 3, the second air-conditioning pipe 160 is formed at a predetermined height of the lower portion 110b and has a suction port 165. The air- And the other side penetrates through the upper layer portion 110a and protrudes to the outside to a predetermined height to form an outside air outlet 163.

Here, the suction port 165 allows the air to be sucked into the second air-conditioning pipe 160 and the air can be discharged from the second air-conditioning pipe 160 as shown in FIG.

An air conditioning valve 151 is provided between the first air-conditioning pipe 150 and the second air-conditioning pipe 160 to be able to open and close, and a discharge valve 161 is provided between the branched air- So that it can be opened and closed.

Air conditioning air flows along the first and second air conditioning pipes by the air conditioning device 140 and maintains the constant temperature inside the main body 110 through the air outlet 153 and the air outlet 165.

6, the air conditioning valve 151 is closed and the discharge valve 161 is opened and the air conditioning valve 151 is opened and the discharge valve 161 is closed when the air conditioner is in the heating mode. have.

That is, according to the present invention, when the temperature inside the main body 110 rises and it is necessary to lower the temperature, the air conditioning valve 151 is closed, the air conditioning device 140 is operated after the discharge valve 161 is opened, And the cooling air is supplied to the upper layer portion 110a through the plurality of air discharge portions 153 formed along the first air conditioning pipe 150 to lower the temperature and the heat in the electric room portion 110b- And is discharged to the outside through the outside air discharge port 163, so that the constant temperature inside the main body 110 can be maintained by using less power than in the prior art, so that it is environmentally friendly can do.

When it is necessary to raise the temperature inside the main body 110 to increase the temperature, the air conditioning valve 151 is opened, the discharge valve 161 is closed, the air conditioning system 140 is operated to generate warmth, The air is supplied to the upper layer portion 110a through the plurality of air discharge portions 153 formed along the air conditioning pipe 150 to raise the temperature and through the air outlet 165 formed at both ends of the second air conditioning pipe 150 Since the temperature is increased by supplying warm air into the electric room 110b-1, the temperature inside the main body 110 can be maintained by using less power than the conventional one, which is environmentally friendly.

In addition, an outside air intake port 167 is formed at a lower side of the lower portion 110b to allow air to flow from the outside, to move along the second air conditioning pipe 160, and to be discharged to the outside through the outside air outlet 163.

The outside air intake port 167 may be coupled with one side of the support portion 170 so that air moving along the inlet pit may be supplied into the main body portion 110 as shown in FIGS.

The support portion 170 supports the main body 110 at a predetermined height from the floor and functions to prevent the external environment from being directly affected by the floor surface.

That is, the support portion 170 supports the body portion 110. The supporting part 170 is installed on the main body part 110 so as to be spaced apart from the bottom of the main body part 110. The support portion 170 is positioned at a predetermined distance from the bottom of the main body 110 and supports the lower portion 110b so that the power control portion 130 and the air conditioner 140 installed in the lower portion 110b, Is positioned at a predetermined distance from the bottom of the main body 110.

2 and 6, the air blowing device 180 may be provided between the air conditioning device 140 and the air outlet 153 of the first air-handling pipe 150, and may be provided between the first and second air- Thereby generating a wind power for supplying cold air or warm air to the air conditioners 150 and 160.

In particular, the heat generated in the battery 121 by the negative pressure generated by the air blowing device 180 can be recovered to the air conditioner 140.

Therefore, the environment-friendly ESS 100 according to the embodiment of the present invention can expect the following effects.

According to the present invention, it is possible to reduce power dissipation by reducing the heat radiation to the container enclosure from 6W / m < 2 > K to 3W / m < 2 > have.

In addition, the arrangement structure that reduces the upper and lower battery temperature difference in the upper layer portion 110a to less than 50% of the conventional one and the heat transfer between the upper and lower portions of the upper layer portion 110a are formed by inverting the oven, There is an advantage that the loss due to the start / stop of the thermo-hygrostat facility can be excluded in the waiting time of about 30 minutes when the charge-standby-discharge mode is changed by the non-conduction method.

In addition, the lower part 110b of the inner volume of the main body 110 has an advantage that the same effect can be expected without applying a separate constant temperature and humidity, the capacity of the constant temperature and humidity control facility can be reduced to 50% Or more.

That is, there is an advantage that the auxiliary power consumption rate (kWh / kWh) can be reduced from 6% to 3%.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the essential characteristics of the invention. will be.

Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings .

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: The eco-friendly ESS
110: main body part 120: battery rack part
130: power control unit (PCS) 140: air conditioner
150: first air-conditioning pipe 160: second air-conditioning pipe
170: Support part 180:

Claims (4)

A main body portion of a rectangular body having an inner space defined by an upper layer portion and a lower layer portion,
A battery rack portion arranged on both sides of the upper layer so that the battery can be stored;
A power control unit (PCS) installed at the lower layer to manage the power of the battery,
An air conditioner installed in the lower layer portion and spaced apart from the power controller by a predetermined distance,
A first air-conditioning pipe which is drawn out from the air-conditioning apparatus and has a passage formed across the center in the longitudinal direction of the upper layer and has a plurality of air outlets;
A second air-conditioning pipe having a suction port formed on both sides of a predetermined height of the lower layer portion and being gathered at the center and branched to connect one end to the first air- and,
And a support portion for supporting the body portion at a predetermined height from the bottom of the body portion,
Wherein an air conditioning valve is provided between the first air-conditioning pipe and the second air-conditioning pipe, and a discharge valve is provided between the one branch and the outside air outlet so that it can be opened and closed,
The air conditioning air flows through the first and second air conditioning pipes by the air conditioning device to maintain a constant temperature inside the main body through the air outlet and the air outlet,
The first air-conditioning pipe is connected to one side of the battery rack portion, and the air-conditioning temperature in the first air-conditioning pipe is conducted,
An air inlet is formed on one side of the lower portion of the lower portion to allow air to flow from the outside, to move along the second air-conditioning pipe, and to be discharged to the outside through the outside air outlet,
Wherein the air conditioning valve is closed when the air conditioner is closed, the discharge valve is opened and the air conditioner is opened, and the discharge valve is closed when the air conditioner is heated to reduce electricity consumption for constant temperature and humidity. . delete delete The method according to claim 1,
Wherein an air blowing device is further provided between the air conditioning device and the air outlet of the first air-conditioning pipe.

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