CN218482665U - Redundancy coordination control device for high-capacity energy storage system - Google Patents
Redundancy coordination control device for high-capacity energy storage system Download PDFInfo
- Publication number
- CN218482665U CN218482665U CN202220174646.1U CN202220174646U CN218482665U CN 218482665 U CN218482665 U CN 218482665U CN 202220174646 U CN202220174646 U CN 202220174646U CN 218482665 U CN218482665 U CN 218482665U
- Authority
- CN
- China
- Prior art keywords
- coordination control
- control device
- sub
- energy storage
- information interaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 77
- 230000003993 interaction Effects 0.000 claims abstract description 51
- 230000009466 transformation Effects 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 56
- 238000012544 monitoring process Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000002452 interceptive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 241001672018 Cercomela melanura Species 0.000 description 1
- 208000033748 Device issues Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Abstract
The utility model discloses a redundant coordination control device for a high-capacity energy storage system, which comprises a first information interaction network; the two main and standby redundant central coordination control devices are connected with all the sub coordination control devices and the standby sub coordination control device through a first information interaction network; at least two second information interaction networks; each sub-coordination control device is connected with at least two energy storage current transformation subunits through a second information interaction network; and the backup sub-coordination control device is used as a public backup of all the sub-coordination control devices and is connected with each second information interaction network through different network ports. The utility model discloses a layered structure extends the access ability to energy storage conversion unit, closely cooperates redundant structure through the superior-inferior level and realizes high reliability, and a central authorities coordinated control device trouble and a son coordinated control device trouble do not all influence the normal operating of system, are applicable to large capacity energy storage system's coordinated control.
Description
Technical Field
The utility model relates to an energy storage system's redundant coordinated control device especially relates to a redundant coordinated control device for large capacity energy storage system.
Background
In recent years, with the access of high-permeability new energy to the power grid, the power grid faces increasing challenges of safe and stable operation due to intermittency, fluctuation and randomness of the new energy. The battery energy storage system has the characteristics of bidirectional power flow, quick response and accurate tracking, is an important means for solving the problem of new energy consumption, can provide various services such as frequency modulation, peak shaving, automatic power generation control, automatic voltage control, black start and the like for the operation of a power grid, and is developed rapidly on the power grid side and the user side.
Because the capacity of a single energy storage converter (PCS) is limited, an energy storage system generally operates a plurality of PCS in parallel. When the energy storage system is in grid-connected operation, a coordinated control device is needed to uniformly schedule, rapidly distribute power instructions, balance SOC and the like. The energy storage system has multiple functional modes in actual operation, can execute a power instruction of a monitoring background, can perform primary frequency modulation according to frequency, and dynamically adjusts the voltage according to the voltage. The coordination control device is used as a direct source of each PCS power regulation instruction, receives a steady-state power instruction of an upper control unit, calculates a transient power instruction by means of self voltage, current, frequency sampling and the like, synthesizes a total power instruction, performs power distribution according to the operating state of each PCS, and can also send start/stop, on/off-grid instructions and the like.
The technical scheme of the existing coordination control device has the following problems: the number of the PCS controlled by the single energy storage coordination control device is limited by the hardware capacity of the device, and the PCS exceeds the capacity range of the energy storage system along with the expansion of the capacity of the energy storage system and the increase of the number of the PCS; the energy storage coordination control device is mostly configured by a single machine, and when the energy storage coordination control device fails due to unpredictable factors, the energy storage system loses all or part of control and cannot normally operate. To large capacity energy storage system, have above-mentioned two problems simultaneously, how to promote when inserting PCS quantity, guarantee whole coordinated control system's high reliability again, need to propose new solution urgently.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problems existing in the prior art, the utility model provides a realize promoting when inserting PCS quantity, guarantee the redundant coordinated control device that is used for large capacity energy storage system of whole coordinated control system's high reliability again.
The technical scheme is as follows: the utility model discloses a redundant coordinated control device includes: the system comprises two central coordination control devices with the same software and hardware configuration, a first information interaction network, at least two sub-coordination control devices, at least two second information interaction networks, at least two energy storage converter sub-units and a backup sub-coordination control device; the central coordination control device is connected with all the sub-coordination control devices and the standby sub-coordination control device through a first information interaction network, wherein one of the sub-coordination control devices is in a host running state, and the other sub-coordination control device is in a standby running state; each sub-coordinated control device is connected with at least two energy storage current transformation subunits through a second information interaction network; and the backup sub-coordination control device is used as a public backup of all the sub-coordination control devices and is connected with each second information interaction network through different network ports.
Further, the central coordination control device includes: the analog quantity acquisition module is connected with a grid-connected bus of the energy storage system and acquires voltage and current; the first input quantity acquisition module is used for acquiring the switch positions of the grid-connected points of the energy storage system; the first on-line communication module is connected with the monitoring system and used for exchanging information; the central coordination control function module executes a coordination control algorithm and performs information interaction with the first pair of upper communication modules, the first pair of lower communication modules and the main/standby switching logic module respectively; the first lower-to-lower communication module is connected with the first information interaction network and interacts information with the sub-coordination control device and the backup sub-coordination control device; the main-standby switching logic module automatically switches the running state of a main machine of the device and the running state of a standby machine; the main and standby communication module is connected with another central coordination control device and exchanges information with the main and standby switching logic module; the analog quantity acquisition module and the first input quantity acquisition module transmit information to the central coordination control function module; all modules are connected through a communication bus to realize information exchange.
Furthermore, the first input quantity acquisition module also acquires a locking signal of another central coordination control device.
Further, the sub-cooperative control apparatus includes: the second pair of upper communication modules are connected with the first information interaction network and interact information with the central coordination control device; the first sub-coordination control function module executes a coordination control algorithm and exchanges information with the second up-pair communication module and the second down-pair communication module respectively; the second downward communication module is connected with a second information interaction network and interacts information with the energy storage converter subunit; all modules are connected through a communication bus to realize information exchange.
Further, the backup sub-cooperative control apparatus includes: the second input acquisition module comprises a plurality of input contacts, and each input contact is connected with a locking contact of the sub-coordination control device; the third pair of upper communication modules is connected with the first information interaction network and interacts information with the central coordination control device; the second sub-coordination control function module executes a coordination control algorithm and exchanges information with the third pair of upper communication modules and the third pair of lower communication modules respectively; the third pair of lower communication modules comprises a plurality of network ports, each network port is connected with a second information interaction network, and the second information interaction networks connected with different network ports are different; the communication network port enabling module receives information from the second sub-coordination control function module and controls whether the network ports of the third pair of upper communication modules and the third pair of lower communication modules are enabled or not; the communication parameter switching module receives information from the communication network port enabling module and automatically switches the communication parameters of the network ports of the third pair of communication modules; all modules are connected through a communication bus to realize information exchange.
Further, the first information interaction network and the second information interaction network respectively comprise a network switch, a network cable and an optical fiber.
Furthermore, when the number of the sub-coordination control devices increases, a plurality of backup sub-coordination control devices are correspondingly configured, and each backup sub-coordination control device is used as a public backup of a part of the sub-coordination control devices.
Compared with the prior art, the beneficial effects of the utility model are as follows: 1. the access capability to the energy storage current transformation unit is expanded through a layered structure, and the method is suitable for a high-capacity energy storage system; 2. the central coordination control device adopts the main and standby configuration capable of seamless switching, so that the reliability is improved; 3. designing a backup sub-coordination control device and a connection mode between the backup sub-coordination control device and an upper level and a lower level, wherein when any one sub-coordination control device fails, the backup sub-coordination control device realizes the complete replacement of the failure sub-coordination control device by switching network port communication parameters and enabling or not, so that the control of the corresponding energy storage converter unit is not influenced; 4. according to the number of energy storage converter subunits connected with different sub-coordination control devices and the importance of the energy storage converter subunits in the system, the backup sub-coordination control devices can be flexibly configured, and the reliability and the economy are both considered.
Drawings
Fig. 1 is a schematic diagram of an energy storage system of the present invention;
fig. 2 is a schematic diagram of the redundant configuration of the energy storage coordination control device of the present invention;
fig. 3 is a functional structure diagram of the central coordination control device of the present invention;
FIG. 4 is a functional structure diagram of the sub-cooperative control apparatus of the present invention;
fig. 5 is a functional structure diagram of the backup sub-coordination control device of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the drawings and the detailed description.
Example embodiments will now be described more fully hereinafter with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
It will be understood that, although the terms first, second, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first component discussed below may be termed a second component without departing from the teachings of the present concepts. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Those skilled in the art will appreciate that the drawings are merely schematic representations of exemplary embodiments, which may not be to scale. The blocks or flows in the drawings are not necessarily required to practice the present application and therefore should not be used to limit the scope of the present application.
As shown in fig. 1, the large-capacity energy storage system includes a monitoring system 10, an energy storage coordination control device 20, and an energy storage converter unit 30. The monitoring system 10 is connected to the energy storage coordination control device 20 and the energy storage conversion unit 30 through a monitoring communication network, and is configured to issue a control instruction to the energy storage coordination control device and monitor an operating state of the energy storage conversion unit 30, where the monitoring communication network uses an IEC61850 or IEC60870-5-103 communication protocol. The energy storage coordination control device 20 is connected to the energy storage converter unit 30 through a fast control network, and is configured to issue a control instruction to the energy storage converter unit 30 and collect operation state information of the energy storage converter unit 30, where the fast control network employs GOOSE or a private communication protocol. The energy storage converter unit 30 is composed of more than two energy storage converter sub-units 310, and each energy storage converter sub-unit 310 includes a PCS control device 311, an energy storage converter (PCS) 312, and an energy storage battery 313. For a large-capacity energy storage system, more than 2 energy storage current conversion units exist, and the fast control networks of each energy storage current conversion subunit 310 are independent.
The energy storage coordination control device has multiple functional modes according to different application scenes, and comprises: a planning curve mode, an AGC/AVC mode, a primary frequency modulation mode, a dynamic voltage regulation mode, etc. The planned curve mode and the AGC/AVC mode are issued by the monitoring system 10 to steady state active and reactive instructions, and the primary frequency modulation mode and the dynamic voltage regulation mode are used by the energy storage coordination control device 20 to calculate transient state active instructions and transient state reactive instructions according to frequency and voltage sampling. In actual operation, multiple functional modes may be put into operation at the same time, the energy storage coordination control device 20 calculates the steady-state instruction and the transient-state instruction according to a certain logic to obtain total active and reactive instructions of the energy storage system, and then performs power distribution according to the PCS states including start-stop states, SOC, and the like. In addition, after the monitoring system 10 issues a system start/stop instruction to the energy storage coordination control device 20, the energy storage coordination control device 20 starts/stops each PCS in sequence according to a certain logic, so as to ensure that the system is stable in the start/stop process.
As shown in fig. 2, the redundant cooperative control apparatus of the present invention includes a first central cooperative control apparatus 210-1 in a host operation state, a second central cooperative control apparatus 210-2 in a standby operation state, a first information interactive network 220, at least two sub cooperative control apparatuses (230-1, 230-2, …, 230-m), a backup sub cooperative control apparatus 240, and at least two second information interactive networks (250-1, 250-2, …, 250-m).
The first central coordination control apparatus 210-1 (or the second central coordination control apparatus 210-2) is connected to all the sub-coordination control apparatuses and the backup sub-coordination control apparatus 240 via the first information interactive network 220, and the different sub-coordination control apparatuses have different network port communication parameters connected to the first information interactive network 220. The sub-coordination control device and the backup sub-coordination control device 240 send information, including their running states, real-time total active and reactive powers and virtual SOC values of the connected energy storage converter units 30 to the central coordination control device 210 through the first information interaction network 220; the first central coordination control device 210-1 in the host operation state issues control commands including start/stop commands, active and reactive commands to all the sub-coordination control devices and the backup sub-coordination control device 240 through the first information interaction network 220, and the second central coordination control device 210-2 in the backup operation state does not issue control commands. The operating states of the first central coordination control device 210-1 and the second central coordination control device 210-2 are a host operating state and a standby operating state, respectively.
The sub-coordination control devices are connected with at least two energy storage current converting subunits (310-1-1, 310-1-p, 310-2-1, 310-2-p, …, 310-m-1 and 310-m-p) through a second information interaction network, and the second information interaction networks connected with different sub-coordination control devices are independent. The sub-coordination control device acquires information of the energy storage converter sub-units connected with the sub-coordination control device through a second information interaction network, wherein the information comprises an operation state, real-time active power, real-time reactive power and a battery SOC value; and the sub-coordination control device issues instructions including start/stop instructions and active and reactive instructions to the connected energy storage converter sub-units through a second information interaction network.
The backup sub-coordination control device 240 is connected with each second information interaction network through different network ports, and has all information acquisition and control functions of the sub-coordination control device on the energy storage converter sub-units. Backup sub-coordinate control device 240 collects device lockout signals of all sub-coordinate control devices through hard-wired points. The communication parameters of the network ports connected with the first information interaction network 220 by the backup sub-coordination control device 240 can be automatically switched. The communication parameters of the backup sub-coordination control device 240 and the network ports connected to each second information interaction network are consistent with the corresponding network port parameters of the sub-coordination control devices connected to the second information interaction network, that is, the communication parameters of the network ports connected to the backup sub-coordination control device 240 and the second information interaction network 250-1 are consistent with the communication parameters of the network ports connected to the sub-coordination control device 230-1 and the second information interaction network 250-1, the communication parameters of the network ports connected to the backup sub-coordination control device 240 and the second information interaction network 250-2 are consistent with the communication parameters of the network ports connected to the sub-coordination control device 230-2 and the second information interaction network 250-2, and so on.
As shown in fig. 3, the central coordination control apparatus includes: the analog quantity acquisition module is connected with a grid-connected bus of the energy storage system and acquires voltage and current; the first input quantity acquisition module is connected with a locking contact of the other central coordination control device; the first upper communication module comprises a network port, is connected with the monitoring system and exchanges information, and the exchanged information comprises an energy storage system start/stop instruction, a functional mode instruction, an active power instruction and a reactive power instruction which are issued by the monitoring system, real-time active power and reactive power of the energy storage system, an average SOC (state of charge), the number of running energy storage converters and the like which are sent by the central coordination control device; the central coordination control function module executes a coordination control algorithm; the main-standby switching logic module automatically switches the running state of a main machine of the device and the running state of a standby machine; the first lower communication module comprises a network port, is connected with the first information interaction network and interacts information between the sub-coordination control device and the backup sub-coordination control device, wherein the interacted information comprises a start/stop instruction and an active and reactive instruction which are issued by the central coordination control device, and self running states sent by the sub-coordination control device and the backup sub-coordination control device and real-time total active and reactive powers and virtual SOC values of the connected energy storage current transformation modules; the master and standby communication module comprises a network port, is connected with another central coordination control device and exchanges information, and the exchanged information comprises an active power instruction and a reactive power instruction which are issued by a monitoring background and the master and standby running states of the device; all modules are connected through a communication bus to realize information exchange.
The main and standby automatic switching logic of the central coordination control device is as follows: when the standby machine detects that the other central coordination control device is in a fault locking state, the standby machine is automatically switched to a host machine running state; when the current standby machine detects that the other central coordination control device is in the host state, the state of the standby machine is kept unchanged; and if the two central coordination control devices are both in the host operation state or both in the standby operation state, the central coordination control device with the host serial number constant value of 1 is preferentially converted into the host. When the main/standby switching logic module determines that the central coordination control device is in the standby operation state, the first pair of lower communication modules are locked to send out the control instruction, that is, the central coordination control device in the standby operation state cannot send out the control instruction.
As shown in fig. 4, the sub-cooperative control apparatus includes: the second pair of upper communication modules comprise a network port, are connected with the first information interaction network and interact information with the central coordination control device; the first sub-coordination control function module executes a coordination control algorithm; the second off-line communication module comprises a network port, is connected with a second information interaction network and interacts information with the energy storage current transformation subunit, and the interacted information comprises: the starting/stopping instruction, the active and reactive instructions, the running state sent by the energy storage converter submodule, the real-time active and reactive power and the battery SOC value are sent by the sub-coordination control device; all modules are connected through a communication bus to realize information exchange.
As shown in fig. 5, the backup sub-cooperative control apparatus includes: the second input acquisition module comprises a plurality of input contacts, and each input contact is connected with a locking contact of the sub-coordination control device; the third pair of upper communication modules comprises a network port, is connected with the first information interaction network and interacts information with the central coordination control device; the second sub-coordination control function module executes a coordination control algorithm; the third pair of lower communication modules comprises a plurality of network ports, each network port is connected with a second information interaction network, and the second information interaction networks connected with different network ports are different; the communication network port enabling module controls whether the third pair of upper communication module network ports and the third pair of lower communication module network ports are enabled; the communication parameter switching module automatically switches the communication parameters of the network ports of the third pair of communication modules; all modules are connected through a communication bus to realize information exchange.
The logic of the backup sub-coordination control device for automatically switching the operation state is as follows: when all the sub-coordination control devices normally operate, the backup sub-coordination control device is in a standby state, network ports connected with the first information interaction network and each second information interaction network are not enabled, and no message is transmitted and received; for example, when the backup sub-coordination control device 240 detects that the sub-coordination control device 230-1 is in a locked state according to the access point signal, the network port connected to the first information interaction network 220 is enabled, and at the same time, the network port communication parameter is switched to the communication parameter of the network port connected to the sub-coordination control device 230-1 and the first information interaction network 220, and the network port of the backup sub-coordination control device 240 connected to the second information interaction network 250-1 is enabled (the communication parameter of the network port connected to the backup sub-coordination control device 240 and the second information interaction network 250-1 is consistent with the network port communication parameter connected to the sub-coordination control device 230-1 and the second information interaction network 250-1), so as to take over the control of the energy storage converter unit 30-1 (including the energy storage converter subunits 310-1-1 and 310-1-p) by the backup sub-coordination control device 230-1; for example, when the backup sub-cooperative control device 240 detects that one sub-cooperative control device 230-1 is in the locked state according to the open/close contact signal, and switches the operating state and parameters as described above, the open/close contact signal again detects that the sub-cooperative control device 230-2 is in the locked state, and the locked state of the sub-cooperative control device 230-1 does not disappear, so that the backup sub-cooperative control device 240 does not switch the operating state and parameters.
The utility model discloses an among the redundant coordination device system, when sub-coordinated control device quantity is more, can dispose many backup sub-coordinated control device, the public reserve of sub-coordinated control device as a part of every backup further improves the overall reliability.
It should be understood that the above examples are only for clearly illustrating the present application and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications of this invention may be made without departing from the spirit or scope of the invention.
Claims (3)
1. A redundant coordination control device for a high capacity energy storage system, comprising: the system comprises two central coordination control devices with the same software and hardware configuration, a first information interaction network, at least two sub-coordination control devices, at least two second information interaction networks, at least two energy storage converter sub-units and a backup sub-coordination control device; the central coordination control device is connected with all the sub-coordination control devices and the standby sub-coordination control device through a first information interaction network, wherein one of the sub-coordination control devices is in a host running state, and the other sub-coordination control device is in a standby running state; each sub cooperative control device is connected with at least two energy storage current transformation subunits through a second information interaction network; and the backup sub-coordination control device is used as a public backup of all the sub-coordination control devices and is connected with each second information interaction network through different network ports.
2. The redundant coordination control device for a high capacity energy storage system according to claim 1, wherein said first and second information networks comprise a network switch, a network cable and an optical fiber, respectively.
3. The redundant coordination control device for a large capacity energy storage system according to any one of claims 1 to 2, wherein when the number of said sub coordination control devices increases, a plurality of backup sub coordination control devices are correspondingly configured, and each backup sub coordination control device is used as a common backup for a part of said sub coordination control devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220174646.1U CN218482665U (en) | 2022-01-21 | 2022-01-21 | Redundancy coordination control device for high-capacity energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220174646.1U CN218482665U (en) | 2022-01-21 | 2022-01-21 | Redundancy coordination control device for high-capacity energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218482665U true CN218482665U (en) | 2023-02-14 |
Family
ID=85164653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220174646.1U Active CN218482665U (en) | 2022-01-21 | 2022-01-21 | Redundancy coordination control device for high-capacity energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218482665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116054423A (en) * | 2023-04-03 | 2023-05-02 | 宁德时代新能源科技股份有限公司 | Energy storage system and energy storage power station |
| CN117055449A (en) * | 2023-10-11 | 2023-11-14 | 南京荣泰电气自动化有限公司 | Implementation method of coordination control device for high-capacity energy storage power station |
-
2022
- 2022-01-21 CN CN202220174646.1U patent/CN218482665U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116054423A (en) * | 2023-04-03 | 2023-05-02 | 宁德时代新能源科技股份有限公司 | Energy storage system and energy storage power station |
| CN117055449A (en) * | 2023-10-11 | 2023-11-14 | 南京荣泰电气自动化有限公司 | Implementation method of coordination control device for high-capacity energy storage power station |
| CN117055449B (en) * | 2023-10-11 | 2023-12-26 | 南京荣泰电气自动化有限公司 | Implementation method of coordination control device for high-capacity energy storage power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110943483B (en) | Micro-grid system and control method | |
| CN218482665U (en) | Redundancy coordination control device for high-capacity energy storage system | |
| CN109713701B (en) | Battery energy storage network load interaction method, terminal, system and medium controlled in superposition | |
| WO2022148258A1 (en) | Operation control method and system for court flexible interconnection system | |
| CN103647274A (en) | Micro-grid system being capable of grid-connected and off-grid operation, and energy control method | |
| TWI774142B (en) | Ac load power supply system and method | |
| CN105337306A (en) | Optical storage integrated power generation system | |
| CN109713704B (en) | Communication interruption safety control method, system and medium for power grid side battery energy storage power station | |
| CN108599379B (en) | Power monitoring system for micro-grid group | |
| JP2019161706A (en) | Power transfer system | |
| WO2023093172A1 (en) | Energy control system of direct current networking ship hybrid power laboratory and control method therefor | |
| CN106451513A (en) | Mixed UPS (uninterrupted power supply) energy storage system and method thereof | |
| CN212183137U (en) | Power plant energy storage black start system | |
| CN112072697B (en) | Modular direct-current microgrid structure reconstruction method and operation control method | |
| CN114765371A (en) | Power control method and device of multi-branch energy storage system | |
| CN115811128A (en) | Medium-low voltage flexible interconnection coordination control system, method, equipment and medium | |
| CN104218612A (en) | Micro-grid flexible grid-connected control method based on integrated control on common connecting point position | |
| CN103904667A (en) | Quick and stable control method adopted after island independent grid power generation equipment failure | |
| CN104934966A (en) | Cloud-based micro-grid wide area coordination control system | |
| CN111682588A (en) | Microgrid system control method and microgrid system controller | |
| CN210297268U (en) | Hybrid energy storage system for thermal power combined AGC frequency modulation | |
| CN112713597A (en) | Device and method for coordinating and controlling power distribution of two low-voltage transformer areas | |
| Huang et al. | Research on and application of fault disposal in flexible interconnection distribution network | |
| CN111064273A (en) | Distributed micro-grid power supply system | |
| CN110445158B (en) | Energy storage power station system based on multi-network integration and transient control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231017 Address after: 11 006 No. 39-7 Siping Street, Heping District, Shenyang City, Liaoning Province Patentee after: STATE GRID LIAONING ELECTRIC POWER Research Institute Patentee after: DALIAN RONGKEPOWER Co.,Ltd. Patentee after: SHENYANG AGRICULTURAL University Patentee after: SHENYANG University OF TECHNOLOGY Patentee after: DALIAN University OF TECHNOLOGY Patentee after: STATE GRID CORPORATION OF CHINA Address before: No.39-7 Siping Street, Heping District, Shenyang, Liaoning 110003 Patentee before: STATE GRID LIAONING ELECTRIC POWER Research Institute Patentee before: NR ENGINEERING Co.,Ltd. Patentee before: DALIAN RONGKEPOWER Co.,Ltd. Patentee before: SHENYANG AGRICULTURAL University Patentee before: SHENYANG University OF TECHNOLOGY Patentee before: DALIAN University OF TECHNOLOGY Patentee before: STATE GRID CORPORATION OF CHINA |
|
| TR01 | Transfer of patent right |