CN208971235U - Thermal power plant and its emergency power supply system - Google Patents
Thermal power plant and its emergency power supply system Download PDFInfo
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- CN208971235U CN208971235U CN201821402350.0U CN201821402350U CN208971235U CN 208971235 U CN208971235 U CN 208971235U CN 201821402350 U CN201821402350 U CN 201821402350U CN 208971235 U CN208971235 U CN 208971235U
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Abstract
The utility model belongs to the utility model and belongs to thermal power plant's technical field, specifically provides a kind of thermal power plant and its emergency power supply system.Emergency power supply system includes energy-storage battery unit, power conversion unit and control unit, control unit can control energy-storage battery unit and provide electric energy to accident protective load in the case where the station-service electric fault in thermal power plant, provide electric energy to power grid to control unit control energy-storage battery Unit selection in the case where station service non-faulting.When station service breaks down; energy-storage battery unit can be realized in 5ms powers to accident protective load; to guarantee the safe shutdown of generating set and major pant item; and when station service does not break down; energy-storage battery unit is powered to power grid; it realizes the utilization to electric energy in energy-storage battery unit, avoids waste of resource and energy, to solve the problems, such as low diesel generating set starting success rate and exchange uninterrupted power supply(ups) waste of energy and resource.
Description
Technical field
The utility model belongs to thermal power plant's technical field, specifically provides a kind of thermal power plant and its emergency power supply system
System.
Background technique
When station service in thermal power plant is powered off because of accident or other reasons, accident emergency power supply can be to thing
Therefore protective load is powered, and guarantees the safe shutdown of generating set and major pant item.Accident emergency power supply divides direct current accident security personnel's electricity
Source and two kinds of alternating accidemt security power supply, direct current accident emergency power supply are protected using battery to the direct currents accident such as DC lubricating
Pacify load power supply, alternating accidemt security power supply select can quick damper diesel-driven generator so as to barring gear, jacking oil
Pump and the power supply of other exchange accident protective loads.With generating set capacity increase and automatization level continuous improvement, some
Requirement of the load to power supply reliability is also higher and higher, when requiring the power failure of power supply such as the computer control system of generating set
Between be no more than 5ms, otherwise will cause Missing data or out of control.This kind of AC safety watl load is known as exchanging the load that do not have a power failure.Due to
Diesel-driven generator needs 5~15s of time-consuming in self-starting process, therefore cannot guarantee exchange in the case where station service powers off
Do not have a power failure the safe operation of load.
It cannot guarantee that the safety for exchanging the load that do not have a power failure is transported in the case where station service powers off to solve diesel-driven generator
Capable problem guarantees the safe and reliable operation of generating set, and generating set is in addition to setting diesel-driven generator is as independent exchange thing
Therefore outside emergency power supply, every generating set is also provided with a set of completely self-contained exchange uninterrupted power supply(ups)
(Uninterruptible Power Supply abbreviation UPS), to disperse in the case where station service power-off to generating set
Control system (DCS), fast cutting disc cabinet, steam turbine monitor instrument, generator-transformer protection disk cabinet, fire detecting and alarm and control system collection
Middle controlling alarm disk, electric measurement transmitter, other automatic adjustments, monitoring and protection equipment, network computer monitoring system
(NCS) station level equipment, full factory's GPS clock clock synchronization, fire detecting and alarm and control system Zone Alerts control panel, electric measurement
Transmitter, other controls, monitors and equipment etc. is protected to exchange the load offer electric power safeguard that do not have a power failure telemechanical measuring screen.But it hands over
Battery in stream uninterrupted power supply(ups) (UPS) is chronically at floating charge state, does not discharge within substantially 1 year primary electricity, and battery
Service life be usually 5~6 years or so, will replace within every 5 years or so exchange uninterrupted power supply(ups) (UPS) in power-supply battery,
To cause the energy and the wasting of resources.In addition, in practical applications, diesel-driven generator is chronically at stationary state, daily pipe
Manage, safeguard, maintain it is not in place, cause diesel-driven generator as alternating accidemt security power supply station service power-off when start success rate
It is low, it cannot reliably start the safe shutdown for guaranteeing generating set and major pant item.
Correspondingly, this field needs a kind of new emergency power supply system to solve the above problems.
Utility model content
In order to solve the above problem in the prior art, in order to solve diesel generating set starting success rate it is low and hand over
The problem of flowing uninterrupted power supply(ups) waste of energy and resource, the utility model provides a kind of emergency power supply in thermal power plant
System, the emergency power supply system includes energy-storage battery unit, power conversion unit and control unit, and described control unit is used for
The energy-storage battery unit is controlled in the case where the station-service electric fault in the thermal power plant provides electricity to accident protective load
Can and electric energy, institute be provided while the energy-storage battery Unit selection is controlled in the case where the station service non-faulting to power grid
The accident protective load of stating includes direct current accident protective load and/or exchange accident protective load, the power conversion unit include
First DC/AC module, the 2nd DC/AC module and DC/DC module, wherein the first DC/AC module is used for the energy storage electricity
The direct current that pool unit provides is converted to the first alternating current corresponding with the exchange accident protective load, the DC/DC module
Direct current for providing the energy-storage battery unit is converted to target direct current corresponding with the direct current accident protective load
Electricity, the 2nd DC/AC module are used to the direct current that the energy-storage battery unit provides being converted to corresponding with power grid second
Alternating current.
In the optimal technical scheme of above-mentioned emergency power supply system, described control unit is used in the station service non-faulting
In the case where and power grid frequency be less than setting value when control the energy-storage battery unit to power grid power.
In the optimal technical scheme of above-mentioned emergency power supply system, described control unit is used in the energy-storage battery unit
Controlling the depth of discharge of the energy-storage battery unit during powering to power grid is 50%~60%.
In the optimal technical scheme of above-mentioned emergency power supply system, the power conversion unit includes AC/DC module, described
AC/DC module is used to be converted in the alternating current from power grid the direct current that can be charged to the energy-storage battery unit, described
Control unit in the case where the station service non-faulting for selectively making power grid charge to the energy-storage battery unit.
In the optimal technical scheme of above-mentioned emergency power supply system, feelings of the described control unit in the station service non-faulting
Control power grid charges to the energy-storage battery unit under condition and in the case of meeting one or two in the following conditions:
Condition 1: the capacity of the energy-storage battery unit is horizontal lower than setting；
Condition 2: current time is the preset low power consumption time.
In the optimal technical scheme of above-mentioned emergency power supply system, the energy-storage battery unit includes multiple energy-storage battery lists
Body, the energy-storage battery unit are configured with battery management unit, and the battery management unit is used for the energy-storage battery unit
Safe operation be managed.
In the optimal technical scheme of above-mentioned emergency power supply system, the energy-storage battery unit includes two energy-storage battery
Unit, mutual backup power supply is so as in the station-service electric fault and one of energy-storage battery between the energy-storage battery subelement
Subelement controls another energy-storage battery subelement to the thing in the case where providing electric energy without accident protective load described in normal direction
Therefore protective load provides electric energy.
In addition, the utility model additionally provides a kind of thermal power plant, the thermal power plant includes above-mentioned emergency power supply
The emergency power supply system in thermal power plant described in any one of optimal technical scheme of system.
It will be appreciated to those of skill in the art that in the technical solution of the utility model, emergency power supply system includes
Energy-storage battery unit, power conversion unit and control unit, control unit are used for the feelings in the station-service electric fault in thermal power plant
Energy-storage battery unit is controlled under condition to provide electric energy to accident protective load and control energy storage in the case where station service non-faulting
Battery unit selectively provides electric energy to power grid, and accident protective load includes direct current accident protective load and/or exchange accident
Protective load, power conversion unit include the first DC/AC module, the 2nd DC/AC module and DC/DC module, wherein the first DC/
AC module is used to being converted to the direct current that energy-storage battery unit provides into the first alternating current corresponding with exchange accident protective load,
DC/DC module is used to the direct current that energy-storage battery unit provides being converted to target direct current corresponding with direct current accident protective load
Electricity, the 2nd DC/AC module are used to the direct current that energy-storage battery unit provides being converted to the second alternating current corresponding with power grid.
That is, energy-storage battery unit is negative to direct current accident security personnel when the station service in thermal power plant breaks down
Lotus and/or exchange accident protective load power supply, thermal power plant station service there is no when failure, energy-storage battery unit to
Power grid power supply.Setting in this way, when station service breaks down, energy-storage battery unit can be realized in 5ms to direct current
Accident protective load and/or exchange accident protective load power supply, thus guarantee the safe shutdown of generating set and major pant item, and
And when station service does not break down, energy-storage battery unit is powered to power grid, realizes the utilization to electric energy in energy-storage battery unit,
Waste of resource and energy are avoided, diesel generating set starting success rate is low and exchange uninterrupted power supply(ups) is unrestrained to solve
The problem of taking the energy and resource.
In the optimal technical scheme of the utility model, in the case where station service non-faulting and the frequency of power grid be less than set
When definite value, control unit controls energy-storage battery unit and powers to power grid.In this way, the power load when power grid is greater than thermal power plant
Generated energy when the frequency of power grid being caused to be less than setting value, control unit controls energy-storage battery unit and powers to power grid to participate in
The AGC frequency modulation and quick peak regulation of power grid.
Detailed description of the invention
Preferred embodiments of the present invention are described with reference to the accompanying drawings and in conjunction with coal-fired power plant, in attached drawing:
Fig. 1 is the schematic diagram of the emergency power supply system of the utility model.
Specific embodiment
It will be apparent to a skilled person that this section embodiment is used only for explaining that the technology of the utility model is former
Reason, is not intended to limit the protection scope of the utility model.Although the utility model makes to be illustrated in conjunction with coal-fired power plant
, but those skilled in the art can according to need and make adjustment to it, to adapt to specific application, such as this is practical
Novel thermal power plant is also possible to oil fired power station, gas power plant etc..Obviously, technical solution adjusted will be fallen into
The protection scope of the utility model.
Coal-fired power plant (hereafter abbreviation power plant) mainly includes coal-burning boiler, steam turbine, generating set, transformer, guarantor
Pacify power-supply system and control system etc., under control of the control system, coal dust is delivered in coal-burning boiler and generates greatly after burning
The thermal energy of amount makes water become high-temperature vapor, and high-temperature vapor is transported to Steam Turbine and drives steam turbine rotation, steam turbine band
Dynamic generating set generates electricity and is delivered to power grid after transformer boosts.In the case where the station-service electric fault in power plant such as station service
Power-off, emergency power supply system can power in time to accident protective load so as to generating set and major pant item safe shutdown.
Referring to Fig.1, Fig. 1 is the schematic diagram of the emergency power supply system of the utility model.Emergency power supply system includes energy storage electricity
Pool unit, power conversion unit and control unit.Control unit can control storage in the case where the station-service electric fault in power plant
Energy battery unit provides electric energy to accident protective load；Electricity selectively is provided to power grid in the case where station service non-faulting
Can, accident protective load includes direct current accident protective load and/or exchange accident protective load, and power conversion unit includes first
DC/AC module, the 2nd DC/AC module and DC/DC module, the first DC/AC module are used for the direct current for providing energy-storage battery unit
Electricity is converted to the first alternating current corresponding with exchange accident protective load, what DC/DC module was used to provide energy-storage battery unit
Direct current is converted to target direct current corresponding with direct current accident protective load, and the 2nd DC/AC module is used for energy-storage battery list
The direct current that member provides is converted to the second alternating current corresponding with power grid.Energy-storage battery unit and the first DC/AC module, DC/DC
Be respectively arranged between module, the 2nd DC/AC module through automatic transfer switch K31, K41, K51, in the first DC/AC module and
It is provided with automatic transfer switch K32 between exchange accident protective load, is set between DC/DC module and direct current accident protective load
It is equipped with automatic transfer switch K42, is provided with automatic transfer switch K52 between the 2nd DC/AC module and power grid.
Illustratively, in power plant normal course of operation, when the electricity stored in energy-storage battery unit is more, control
Unit controls automatic transfer switch K51 and K52 closure, to make the 110V direct current of energy-storage battery unit by the 2nd DC/AC
Module is converted into the second alternating current such as 220kV alternating current corresponding with power grid to power to power grid, to suitably reduce
The electric energy that power plant is provided to power grid, can be avoided own loss in the long-term placement process of energy-storage battery unit leads to the wave of electric energy
Take, while improving the utilization rate of energy-storage battery unit.When the station service in power plant is broken down suddenly as powered off, control
Unit controls automatic transfer switch K51 and K52 and disconnects, while controlling automatic transfer switch K31, K32, K41, K42 closure, energy storage
The 110V direct current of battery unit is converted into the first alternating current corresponding with exchange accident protective load by the first DC/AC module
If 220V alternating current is to provide the first alternating current to exchange accident protective load, the direct current of energy-storage battery unit passes through DC/DC
Module is converted into the direct current of target direct current corresponding with direct current accident protective load such as 220V to ensure public security to direct current accident
Load power supply.Control unit control battery energy storage unit is in 5ms to exchange accident protective load and straight after station service power-off
Stream accident protective load power supply, to avoid accident protective load from powering off and influence the safe stopping of generating set and major pant item
Machine.
It will be appreciated by persons skilled in the art that " the 110V direct current of energy-storage battery unit ", " the second alternating current is
220kV alternating current ", " the first alternating current is 220V alternating current ", " direct current that target direct current is 220V " etc. are only example
The description of property, is not intended to limit the protection scope of the utility model, those skilled in the art, which can according to need, makes it
Adjustment, to adapt to specific application, such as the voltage of direct current of energy-storage battery unit can be 48V, 220V, and second
The voltage of alternating current can be for 110kV, 60kV etc., and the voltage of the first alternating current can be 110V, 380V etc., target direct current
Voltage is 110V, 48V etc..Station service breaks down suddenly to be also possible to the spread of voltage of station service and influences unit and subsidiary engine
Safe shutdown.
With continued reference to Fig. 1, it is preferable that energy-storage battery unit includes two energy-storage battery subelements, respectively the first energy storage
Battery subelement and the second energy-storage battery subelement, the first energy-storage battery subelement and the second energy-storage battery subelement and energy storage electricity
Automatic transfer switch K1 and K2 are respectively arranged between the output bus of pool unit.First energy-storage battery subelement and the second energy storage
Mutual backup power supply is between battery subelement so as in station-service electric fault and one of energy-storage battery subelement is without normal direction accident
Protective load controls another energy-storage battery subelement and provides electric energy to accident protective load in the case where providing electric energy.It is specific and
Speech, control unit, which can be closed another disconnection by one in control automatic transfer switch K1 and K2, makes the first energy-storage battery
Either one or two of subelement and the second energy-storage battery subelement provide electric energy to accident protective load, i.e., when the first energy-storage battery is single
Member can control K1 and disconnect K2 closure or control K1 closure K2 disconnection when perhaps the second energy-storage battery subelement breaks down make
Second energy-storage battery subelement or the first energy-storage battery subelement provide electric energy to accident protective load.
Setting in this way, the energy-storage battery unit that can be avoided only one energy-storage battery subelement break down and
Electric energy cannot be provided to accident protective load in station-service electric fault, to improve the reliability of emergency power supply system.
Preferably, in the case where station service non-faulting, when the frequency of power grid is less than setting value, control unit control storage
Energy battery unit is powered to power grid.Illustratively, the rated frequency of power grid is 50Hz, when the power load of power grid is greater than power plant
When the electricity provided to power grid causes the frequency of power grid to be less than setting value 47.5Hz, control unit controls automatic transfer switch K51
It is closed with K52, the direct current of energy-storage battery unit is made to be converted into the second alternating current corresponding with power grid by the 2nd DC/AC module
To power to power grid.
Setting in this way, can be in the case where station service non-faulting, when the frequency of power grid is less than setting value time control
Unit processed controls energy-storage battery unit and powers to power grid, so that energy-storage battery unit is participated in the AGC frequency modulation and quick peak regulation of power grid, mentions
High power plant participates in 20 times of corresponding speed or more of AGC frequency modulation, has and completes the accurate frequency modulation for adjusting 10MW in 0.5s and appoint
The ability of business and peak clipping.
It will be appreciated by persons skilled in the art that also can control energy-storage battery in the case where station service non-faulting
Unit is powered in the peak of power consumption period to power grid, to play the role of " peak clipping " to a certain extent.
Preferably, during energy-storage battery unit is powered to power grid, control unit makes the electric discharge of energy-storage battery unit
Deep-controlled is 50%~60%.Since the charge and discharge circulation life of electric power storage battery is negatively correlated with depth of discharge,
During energy-storage battery unit is powered to power grid, the depth of discharge of control energy-storage battery unit is 50%~60%, can either
Guarantee that the service life of energy-storage battery unit reaches 8~10 years, meets requirement, while can guarantee in energy-storage battery unit
Electricity be no less than the 40% of its rated capacity, so that the station-service electric fault energy-storage battery unit in power plant is negative to accident security personnel
Lotus guarantees its powers duration when powering, and makes generating set and the smooth safe shutdown of major pant item.That is, in energy-storage battery list
Member remaining capacity during participating in the AGC frequency modulation and quick peak regulation of power grid drops to the rated capacity of energy-storage battery unit
When 40%, control unit controls energy-storage battery unit and stops electric discharge.When station service breaks down, control unit controls energy storage electricity
Pool unit to direct current accident protective load and/or exchange accident protective load carry out depth power supply, it is ensured that energy-storage battery unit to
Direct current accident protective load and/or exchange accident protective load power supply, until generating set and the smooth safe shutdown of major pant item.
With continued reference to Fig. 1, it is preferable that power conversion unit includes AC/DC module, energy-storage battery unit and AC/DC module
Between be provided with automatic transfer switch K61, automatic transfer switch K62 is provided between AC/DC module and power grid.AC/DC module
For the alternating current from power grid to be converted to the direct current that can be charged to energy-storage battery unit, control unit is used in station-service
Power grid is selectively set to charge in the case where electric non-faulting to energy-storage battery unit.Specifically, control unit control is cut automatically
Switch K61 and K62 closure are changed, being converted into the alternating current of power grid through AC/DC module can be to the straight of energy-storage battery unit charging
The backward energy-storage battery unit of galvanic electricity charges.Preferably, in the case where station service non-faulting and meet in the following conditions one
It is a or two in the case of control unit control power grid to energy-storage battery unit charge:
Condition 1: the capacity of energy-storage battery unit is horizontal lower than setting；
Condition 2: current time is the preset low power consumption time.
Specifically, when the capacity of energy-storage battery unit is horizontal lower than setting, as the capacity of energy-storage battery unit is less than
Its rated capacity 40% when control unit control automatic transfer switch K61 and K62 closure make the alternating current of power grid through AC/DC mould
Block is converted into the backward energy-storage battery unit charging for the direct current that can be charged to energy-storage battery unit, to avoid energy-storage battery
Electricity in unit is very few and the power supply capacity of energy-storage battery unit is influenced in station-service electric fault.It is to set in advance in current time
Fixed low power consumption time such as electricity consumption period at night, generated energy from a power plant can be higher than the power load of power grid, at this time control electricity
Net charges to energy-storage battery unit, can reduce the regulated quantity of power plant generated energy, " fill out to realize to a certain extent
The effect of paddy ".It will be appreciated by persons skilled in the art that can also be controlled in the case where condition 1 and condition 2 are all satisfied
Power grid charges to energy-storage battery unit.
Preferably, energy-storage battery unit includes multiple energy-storage battery monomers, and energy-storage battery unit is configured with battery management list
Member, battery management unit is for being managed the safe operation of energy-storage battery unit.It charges or puts in energy-storage battery monomer
In the process of electricity, battery management unit monitors voltage value, current value and the temperature value etc. of each energy-storage battery monomer.Work as energy storage
When any of voltage value, current value and temperature value of battery cell or multiple exceptions, battery management unit issues abnormal
It alerts and controls energy-storage battery unit and stop charge or discharge, play a protective role to energy-storage battery monomer.
Through above description as can be seen that in the optimal technical scheme of the utility model, emergency power supply system includes storage
Can battery unit, power conversion unit and control unit, control unit is used for the station-service electric fault in thermal power plant the case where
Lower control energy-storage battery unit provides electric energy to accident protective load and controls energy storage electricity in the case where station service non-faulting
Pool unit selectively provides electric energy to power grid, and accident protective load includes that direct current accident protective load and/or exchange accident are protected
Pacify load, power conversion unit includes the first DC/AC module, the 2nd DC/AC module, DC/DC module and AC/DC module.The
One DC/AC module is used to being converted to the direct current that energy-storage battery unit provides into corresponding with exchange accident protective load first and hand over
Galvanic electricity, DC/DC module are used to the direct current that energy-storage battery unit provides being converted to mesh corresponding with direct current accident protective load
Direct current is marked, the 2nd DC/AC module is used to being converted to the direct current that energy-storage battery unit provides into corresponding with power grid second and hand over
Galvanic electricity, AC/DC module are used to being converted to the alternating current from power grid into the direct current that can be charged to the energy-storage battery unit,
Control unit in the case where station service non-faulting for selectively making power grid charge to energy-storage battery unit.In this way
Setting, can the station service in power plant when breaking down, energy-storage battery unit is to direct current accident protective load and/or exchange thing
Therefore protective load is powered, thermal power plant station service there is no when failure, energy-storage battery unit power to power grid or
Power grid charges to energy-storage battery unit, to improve the utilization rate of energy-storage battery unit, avoids the waste of energy and resource,
And it can power in time to accident protective load when station service breaks down, guarantee generating set and major pant item safe stopping
Machine.
Above embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but can not
Therefore it is interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art
For, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to practical
Novel protection scope.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. a kind of emergency power supply system in thermal power plant, which is characterized in that the emergency power supply system includes energy-storage battery list
Member, power conversion unit and control unit,
Described control unit is for controlling the energy-storage battery unit in the case where station-service electric fault in the thermal power plant
Electric energy is provided to accident protective load and the energy-storage battery Unit selection is controlled in the case where the station service non-faulting
Property to power grid provide electric energy, the accident protective load include direct current accident protective load and/or exchange accident protective load,
The power conversion unit includes the first DC/AC module, the 2nd DC/AC module and DC/DC module,
Wherein, the first DC/AC module is exchanged for being converted to the direct current that the energy-storage battery unit provides with described
Corresponding first alternating current of accident protective load, the DC/DC module are used for the direct current for providing the energy-storage battery unit
Target direct current corresponding with the direct current accident protective load is converted to, the 2nd DC/AC module is used for the energy storage
The direct current that battery unit provides is converted to the second alternating current corresponding with power grid.
2. emergency power supply system according to claim 1, which is characterized in that described control unit is used in the station service
The energy-storage battery unit is controlled in the case where non-faulting and when the frequency of power grid is less than setting value to power to power grid.
3. emergency power supply system according to claim 2, which is characterized in that described control unit is used in the energy storage electricity
Pool unit controls the depth of discharge of the energy-storage battery unit during powering to power grid be 50%~60%.
4. emergency power supply system according to claim 1, which is characterized in that the power conversion unit includes AC/DC mould
Block, the AC/DC module are used to being converted to the alternating current from power grid into the direct current that can be charged to the energy-storage battery unit
Electricity,
Described control unit in the case where the station service non-faulting for selectively making power grid to the energy-storage battery list
Member charging.
5. emergency power supply system according to claim 4, which is characterized in that described control unit is in the non-event of the station service
Control power grid is filled to the energy-storage battery unit in the case where barrier and in the case of meeting one or two in the following conditions
Electricity:
Condition 1: the capacity of the energy-storage battery unit is horizontal lower than setting；
Condition 2: current time is the preset low power consumption time.
6. emergency power supply system according to any one of claim 1 to 5, which is characterized in that the energy-storage battery unit
Including multiple energy-storage battery monomers, the energy-storage battery unit is configured with battery management unit, and the battery management unit is used for
The safe operation of the energy-storage battery unit is managed.
7. emergency power supply system according to any one of claim 1 to 5, which is characterized in that the energy-storage battery unit
Including two energy-storage battery subelements, mutual backup power supply is between the energy-storage battery subelement so as in the station-service electric fault
And one of energy-storage battery subelement without accident protective load described in normal direction provide electric energy in the case where control another energy storage
Battery subelement provides electric energy to the accident protective load.
8. a kind of thermal power plant, which is characterized in that the thermal power plant includes firepower described in any one of claims 1 to 7
The emergency power supply system in power plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402350.0U CN208971235U (en) | 2018-08-29 | 2018-08-29 | Thermal power plant and its emergency power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402350.0U CN208971235U (en) | 2018-08-29 | 2018-08-29 | Thermal power plant and its emergency power supply system |
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| Publication Number | Publication Date |
|---|---|
| CN208971235U true CN208971235U (en) | 2019-06-11 |
Family
ID=66753904
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821402350.0U Expired - Fee Related CN208971235U (en) | 2018-08-29 | 2018-08-29 | Thermal power plant and its emergency power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690907A (en) * | 2021-08-27 | 2021-11-23 | 山西图门新能源有限公司 | Thermal power plant combined energy storage AGC frequency modulation system based on carbon-based capacitor |
| CN114946097A (en) * | 2020-01-23 | 2022-08-26 | 瑞典爱立信有限公司 | Power grid frequency stabilization using infrastructure of communication network |
-
2018
- 2018-08-29 CN CN201821402350.0U patent/CN208971235U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946097A (en) * | 2020-01-23 | 2022-08-26 | 瑞典爱立信有限公司 | Power grid frequency stabilization using infrastructure of communication network |
| CN113690907A (en) * | 2021-08-27 | 2021-11-23 | 山西图门新能源有限公司 | Thermal power plant combined energy storage AGC frequency modulation system based on carbon-based capacitor |
| CN113690907B (en) * | 2021-08-27 | 2024-03-08 | 山西图门新能源有限公司 | Combined energy storage AGC frequency modulation system of thermal power plant based on carbon-based capacitor |
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