CN117239818A - On-line connection expansion device and system for diesel-storage complementary mobile power supply - Google Patents
On-line connection expansion device and system for diesel-storage complementary mobile power supply Download PDFInfo
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Abstract
The invention relates to a diesel-electricity-storage complementary mobile power supply online connection expansion device and a diesel-electricity-storage complementary mobile power supply online connection expansion system, wherein a multi-power supply online expansion connection and switching device is connected in series at the front end or the rear end of a main inlet switch of a low-voltage distribution box UP, an electric control switch is powered by power grid power to supply power to a power bus powered by an electric load through a power supply power line, meanwhile, a mobile energy-storage power supply system is connected to a mobile energy-storage power supply connecting terminal in an online manner without power outage, and a diesel-electricity generation system is connected to a diesel-electricity-generation power supply connecting terminal in an online manner without power outage; the on-line connection controller monitors voltage, frequency and phase parameters of the power grid and the diesel power generation system through the 1 st and the 2 nd power sampling sensors respectively, controls the synchronization of the mobile energy storage power supply system and the power grid power and the diesel power generation system, controls the on-off of corresponding switches according to the set control sequence, realizes uninterrupted operation and on-line connection and switching, and is a device with high practical value for uninterrupted operation on-line connection and switching.
Description
Technical Field
The invention belongs to the technical field of online connection power supply of power supply systems, and particularly relates to an online connection expansion device and an online connection expansion system of a diesel storage complementary mobile power supply.
Background
The power flexibility adjusting capability is one of important core technologies for constructing a novel power system, particularly emergency capacity expansion and local peak shaving are needed, temporary power supply is provided for power grid station maintenance, and the mobile bidirectional power supply system meeting power grid flexibility dynamic access and switching is adopted, so that the power flexibility adjusting capability is one of modes for rapidly and effectively improving the power flexibility adjusting capability. On the other hand, in order to better provide the power guarantee capability, the national power grid is greatly pushed to cancel the power outage operation of the distribution network plan, and the uninterrupted operation of the power utilization load of the low-voltage transformer area is promoted and applied in various places; various online power supply access realization modes, such as serial connection and synchronous grid connection, need short-time power failure to finish on-site access operation, and cannot realize the aims of automatic and uninterrupted power failure control and operation; and the switching is performed through the fast change-over switch, so that a millisecond-level short-time power failure exists, and the risk of load faults is increased.
In order to solve the problems existing in the prior art, further simplify the live working step, increase the application scene of the uninterrupted power operation, promote the uninterrupted power switching reliability and security, the national intellectual property agency discloses a uninterrupted power operation fast switching system and method (CN 113452076B), the scheme adopts a mode of adding the uninterrupted power operation fast switching system equipment to carry out uninterrupted power operation; the technical characteristics are that two bypass power supply paths with two alternative disconnection switches are additionally arranged for the original power supply system at the same time, and the bypass power supply system comprises: the scheme comprises a transformer, a low-voltage distribution box, a mobile power generation car, a breaker Q1, a breaker Q2, a change-over switch TSE1, a change-over switch TSE2, a solid-state electronic switch G1, a main control unit M1, a current sensor CT1 and a current sensor CT2, and obviously has obvious defects and shortcomings, and the scheme not only adds a large number of electric components, but also has complex system architecture and control and high cost; particularly, the scheme has the obvious defects that the system structure and the connection relation are complex, and the power supply switching needs manual cooperation operation, and the scheme has the advantages that the power switching process is matched by manual operation, and the … switching-on breaker Q1 penetrates through a mains bypass power supply loop; at this time, the total incoming line switch of the low-voltage distribution box P1 is manually opened, and at this time, the load is bypassed by the circuit breaker Q1 and the change-over switch TSE 1.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art and effectively achieve the aim of online access to a mobile power supply without power failure, the invention provides a diesel-storage complementary mobile power supply online connection expansion device and a diesel-storage complementary mobile power supply online connection expansion system, comprising: the diesel power generation system comprises a diesel power generation system, an online connection controller, an online energy storage switching electric control switch, an online energy storage power supply expansion power line, an online diesel generation switching electric control switch, a mobile expansion power supply access power terminal, a mobile energy storage power supply connecting terminal, a mobile energy storage power supply system, an expansion device control line, a power grid power supply electric control switch, a power supply power line, a 1 st power supply power line connecting terminal, a 2 nd power supply power line connecting terminal, an online diesel power generation source expansion power line, a diesel power generation source connecting terminal, a 1 st power sampling sensor and a 2 nd power sampling sensor; the power supply system is characterized in that a 1 st power supply power line connecting terminal of the multi-power supply on-line expansion connection and switching device is connected with a main incoming line switch of a low-voltage distribution box UP, and a 2 nd power supply power line connecting terminal is connected with a power bus for supplying power to a power load; the mobile energy storage power supply system is connected with a mobile expansion power supply access power terminal of a power supply line through a mobile energy storage power supply connection terminal; the diesel power generation system is connected with a mobile extension power supply access power terminal of a power supply line through a diesel power generation source connection terminal; and the on-line connection controller of the multi-power supply on-line expansion connection and switching device is respectively connected with the diesel power generation system and the mobile energy storage power supply system through control lines of the expansion device to form a system framework of the on-line controlled interactive switching of the diesel power generation system and the mobile energy storage power supply system in a complementary capacity expansion and uninterrupted power mode and the power grid.
The on-line connection expansion device and system for the diesel-storage complementary mobile power supply are characterized in that a power grid power supply electric control switch of the multi-power supply on-line expansion connection and switching device is respectively connected with a 1 st power supply power line connection terminal and a 2 nd power supply power line connection terminal through power supply power lines; one end of the on-line energy storage switching electric control switch is connected to a power supply line mobile expansion power supply connected between the power supply electric control switch and the 2 nd power supply power line connecting terminal through an on-line energy storage power supply expansion power line, and the other end of the on-line energy storage switching electric control switch is connected to a mobile energy storage power supply connecting terminal; the 1 st power sampling sensor is connected to a power supply power line between the power supply electric control switch of the power grid and the 1 st power supply power line connecting terminal; one end of the on-line diesel power generation switching electric control switch is connected to a mobile expansion power supply on a power supply power line between the power supply electric control switch and a 2 nd power supply power line connecting terminal through an on-line diesel power generation source expansion power line, and the other end of the on-line diesel power generation switching electric control switch is connected to the diesel power generation source connecting terminal; the 2 nd electric power sampling sensor is connected to an online diesel power generation source expansion power line between the online diesel power generation switching electric control switch and the diesel power generation source connecting terminal; the online connection controller is respectively connected with the online energy storage switching electric control switch, the online diesel engine switching electric control switch, the power supply electric control switch of the power grid, the 1 st electric sampling sensor and the 2 nd electric sampling sensor through control lines of the expansion device; the multi-power supply on-line expansion connection and switching device with the uninterrupted operation framework is formed.
The on-line connection expansion device and the system for the diesel storage complementary mobile power supply are characterized in that a main inlet switch of a low-voltage distribution box UP and an electric control switch of the power supply are closed, and an on-line energy storage switching electric control switch and an on-line diesel generation switching electric control switch are opened; the grid power is supplied to a power bus that is supplied by an electrical load.
The on-line connection expansion device and system for the diesel-storage complementary mobile power supply are characterized in that the mobile energy storage power supply system is connected and supplied with power without power outage operation in the power supply operation of a power grid; namely: the method comprises the steps that an on-line energy storage switching electric control switch and an on-line diesel generation switching electric control switch are opened, a main inlet switch of a low-voltage distribution box UP and a power grid power supply electric control switch are closed, power grid power is supplied to a power bus powered by an electric load, a mobile energy storage power supply system is connected to a mobile energy storage power supply connecting terminal on line without power failure in power grid power supply operation, an on-line connection controller controls the mobile energy storage power supply system to be opened, voltage, frequency and phase parameters of power grid power are monitored in real time through a 1 st power sampling sensor, the mobile energy storage power supply system is controlled to be synchronous with the power grid power, and the on-line energy storage switching electric control switch is controlled to be closed after the synchronous period, and the power grid power supply electric control switch is controlled to be opened; the mobile energy storage power supply system is connected without power outage operation and supplies power for a power bus for supplying power to an electric load.
The diesel power generation system is connected and supplied with power without power outage operation in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch and the on-line diesel engine switching electric control switch are opened, a main inlet switch of the low-voltage distribution box UP and a power grid power supply electric control switch are closed, and power grid power is supplied to a power bus powered by an electric load; in the power supply operation of the power grid, the diesel power generation system is connected to a diesel power generation source connecting terminal on line without power failure, the on-line connection controller controls the diesel power generation system to be started, the voltage, frequency and phase parameters of the power grid power are monitored in real time through a 1 st power sampling sensor, the diesel power generation system is controlled to be synchronous with the power grid power, and an on-line diesel power generation switching electric control switch is controlled to be disconnected after the synchronous; the diesel power generation system is connected without power outage operation, and supplies power for a power bus for supplying power to an electric load.
The diesel power generation system and the mobile energy storage power supply system are complementary and are connected and powered without power outage in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch and the on-line diesel engine switching electric control switch are opened, a main inlet switch of the low-voltage distribution box UP and a power grid power supply electric control switch are closed, and power grid power is supplied to a power bus powered by an electric load; the mobile energy storage power supply system is connected to the mobile energy storage power supply connecting terminal on line without power outage in the power supply operation of the power grid, and meanwhile, the diesel power generation system is connected to the diesel power generation source connecting terminal on line without power outage; the on-line connection controller monitors voltage, frequency and phase parameters of the power grid power in real time through a 1 st power sampling sensor, controls the mobile energy storage power supply system to be started and controls the on-line energy storage switching electric control switch to be closed after the on-line energy storage switching electric control switch is synchronous with the power grid power, and controls the power grid power supply electric control switch to be opened; the mobile energy storage power supply system supplies power for a power bus for supplying power to the power load; and the on-line connection controller controls the diesel power generation system to be started, monitors the voltage, frequency and phase parameters of the diesel power generation system in real time through the 2 nd power sampling sensor, controls the mobile energy storage power supply system to be synchronous with the diesel power generation system, and controls the on-line diesel power generation switching electric control switch to be closed after synchronous, and the on-line connection controller controls the diesel power generation system and the mobile energy storage power supply system to be complementary to supply power for a power bus for supplying power to an electric load.
The invention relates to a diesel-electricity-storage complementary mobile power supply online connection expansion device and a diesel-electricity-storage complementary mobile power supply online connection expansion system, wherein a multi-power supply online expansion connection and switching device is connected in series at the front end or the rear end of a main inlet switch of a low-voltage distribution box UP, an electric control switch is powered by power grid power to supply power to a power bus powered by an electric load through a power supply power line, meanwhile, a mobile energy-storage power supply system is connected to a mobile energy-storage power supply connecting terminal in an online manner without power outage, and a diesel-electricity generation system is connected to a diesel-electricity-generation power supply connecting terminal in an online manner without power outage; the on-line connection controller respectively monitors voltage, frequency and phase parameters of the power grid power and the diesel power generation system in real time through the 1 st power sampling sensor and the 2 nd power sampling sensor, controls the synchronization of the mobile energy storage power supply system and the power grid power, controls the synchronization of the mobile energy storage power supply system and the diesel power generation system, controls the on-off of corresponding switches according to the set control sequence, realizes uninterrupted operation and on-line connection and switching, overcomes the defects and shortcomings of the prior art, is simple, high-efficiency, low-cost, high-safety, full-automatic and more reliable, and is a device for on-line connection and switching of uninterrupted operation with high practical value.
Drawings
Fig. 1 is a schematic diagram of an on-line connection expansion device and system of a diesel-storage complementary mobile power supply.
Fig. 2 is a schematic diagram of the construction principle of the multi-power on-line expansion connection and switching device.
Detailed Description
As an implementation example, an on-line connection expansion device and system for a diesel-electric complementary mobile power supply are described with reference to the accompanying drawings, but the described embodiments are some embodiments, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The technique and scheme of the present invention are not limited to those given in the present embodiment example.
As shown in fig. 1, an on-line connection expansion device and system for a diesel-storage complementary mobile power supply include: the diesel power generation system comprises a diesel power generation system (10), an online connection controller (11), an online energy storage switching electric control switch (12), an online energy storage power supply expansion power line (13), an online diesel power generation switching electric control switch (14), a mobile expansion power supply access power terminal (15), a mobile energy storage power supply connection terminal (16), a mobile energy storage power supply system (17), an expansion device control line (18), a power grid power supply electric control switch (19), a power supply power line (101), a 1 st power supply power line connection terminal (102), a 2 nd power supply power line connection terminal (103), an online diesel power generation source expansion power line (104), a diesel power generation source connection terminal (105), a 1 st power sampling sensor (20) and a 2 nd power sampling sensor (21); the power supply system is characterized in that a 1 st power supply power line connecting terminal (102) of the multi-power supply on-line expansion connection and switching device (100) is connected with a main incoming line switch of a low-voltage distribution box UP, and a 2 nd power supply power line connecting terminal (103) is connected with a power bus for supplying power to an electric load; the mobile energy storage power supply system (17) is connected with a mobile expansion power supply access power terminal (15) of the power supply line (101) through a mobile energy storage power supply connection terminal (16); the diesel power generation system (10) is connected with a mobile expansion power supply access power terminal (15) of the power supply line (101) through a diesel power generation source connection terminal (105); and an online connection controller (11) of the multi-power online expansion connection and switching device (100) is respectively connected with the diesel power generation system (10) and the mobile energy storage power supply system (17) through an expansion device control line (18) to form a system framework of the online controlled interactive switching of the diesel power generation system (10) and the mobile energy storage power supply system (17) in a complementary capacity expansion and uninterrupted mode and a power grid.
As shown in fig. 2, the on-line connection expansion device and system for a diesel-electric complementary mobile power supply are characterized in that a power grid power supply electric control switch (19) of the multi-power supply on-line expansion connection and switching device (100) is respectively connected with a 1 st power supply power line connection terminal (102) and a 2 nd power supply power line connection terminal (103) through a power supply power line (101); one end of the on-line energy storage switching electric control switch (12) is connected to a power supply electric control switch (19) of the power grid through an on-line energy storage power supply expansion power line (13), a mobile expansion power supply is connected to a power supply terminal (15) on a power supply power line (101) between a power supply power line connection terminal (103) of the 2 nd power supply, and the other end of the on-line energy storage switching electric control switch is connected to a mobile energy storage power supply connection terminal (16); the 1 st power sampling sensor (20) is connected to a power supply power line (101) between the power supply electric control switch (19) and the 1 st power supply power line connecting terminal (102); one end of the on-line diesel power generation switching electric control switch (14) is connected to a mobile expansion power supply on a power supply power line (101) between the power supply electric control switch (19) and a 2 nd power supply power line connecting terminal (103) through an on-line diesel power generation source expansion power line (104), and the other end of the on-line diesel power generation switching electric control switch is connected to a diesel power generation source connecting terminal (105); the 2 nd electric power sampling sensor (21) is connected to an online diesel power generation source expansion power line (104) between the online diesel power generation switching electric control switch (14) and the diesel power generation source connecting terminal (105); the online connection controller (11) is respectively connected with the online energy storage switching electric control switch (12), the online diesel engine switching electric control switch (14), the power grid power supply electric control switch (19), the 1 st power sampling sensor (20) and the 2 nd power sampling sensor (21) through an expansion device control line (18); the multi-power supply on-line expansion connection and switching device with the uninterrupted operation framework is formed.
The on-line connection expansion device and the system for the diesel-electric complementary mobile power supply are characterized in that a main inlet switch of a power grid power normal power supply operation, a main inlet switch of a low-voltage distribution box UP and a power grid power supply electric control switch (19) are closed, and an on-line energy storage switching electric control switch (12) and an on-line diesel-electric switching electric control switch (14) are opened; the grid power is supplied to a power bus that is supplied by an electrical load.
The on-line connection expansion device and system of the diesel-storage complementary mobile power supply are characterized in that the mobile energy storage power supply system (17) is connected and supplied with power without power outage operation in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch (12) and the on-line diesel generation switching electric control switch (14) are disconnected, a main inlet switch of the low-voltage distribution box UP and a power grid power supply electric control switch (19) are closed, power grid power is supplied to a power bus powered by an electric load, the mobile energy storage power supply system (17) is connected to a mobile energy storage power supply connecting terminal (16) on line without power failure in power grid power supply operation, the on-line connection controller (11) controls the mobile energy storage power supply system (17) to be opened, voltage, frequency and phase parameters of the power grid power are monitored in real time through a 1 st power sampling sensor (20), the mobile energy storage power supply system (17) is controlled to be closed in synchronization with the power grid power, and the on-line energy storage switching electric control switch (12) is controlled to be opened after synchronization; the mobile energy storage power supply system (17) is connected without power outage operation and supplies power for a power bus for supplying power to an electric load.
The diesel power generation system (10) is connected and powered on without power outage operation in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch (12) and the on-line diesel engine switching electric control switch (14) are disconnected, a main inlet switch of the low-voltage distribution box UP and a power supply electric control switch (19) of the power grid are closed, and the power grid power supplies power for a power bus powered by an electric load; in the power supply operation of the power grid, the diesel power generation system (10) is connected to a diesel power generation source connecting terminal (105) on line without power failure, the on-line connection controller (11) controls the diesel power generation system (10) to be started, the voltage, frequency and phase parameters of the power grid power are monitored in real time through a 1 st power sampling sensor (20), the diesel power generation system (10) is controlled to be synchronous with the power grid power, and an on-line diesel power generation switching electric control switch (14) is controlled to be disconnected after the synchronous period, so that the power grid power supply electric control switch (19) is controlled to be disconnected; the diesel power generation system (10) is connected without power outage operation and supplies power for a power bus for supplying power to an electric load.
The diesel oil power generation system (10) and the mobile energy storage power supply system (17) are complementary and are connected and powered without power outage in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch (12) and the on-line diesel engine switching electric control switch (14) are disconnected, a main inlet switch of the low-voltage distribution box UP and a power supply electric control switch (19) of the power grid are closed, and the power grid power supplies power for a power bus powered by an electric load; the mobile energy storage power supply system (17) is connected to the mobile energy storage power supply connecting terminal (16) on line without power outage in the power supply operation of the power grid, and meanwhile, the diesel power generation system (10) is connected to the diesel power generation source connecting terminal (105) on line without power outage; the on-line connection controller (11) monitors voltage, frequency and phase parameters of power grid power in real time through a 1 st power sampling sensor (20), controls the mobile energy storage power supply system (17) to be started and controls synchronization with the power grid power, and controls the on-line energy storage switching electric control switch (12) to be closed after synchronization to control the power grid power to supply power to be disconnected from the electric control switch (19); the mobile energy storage power supply system (17) supplies power for a power bus for supplying power for an electric load; the on-line connection controller (11) controls the diesel power generation system (10) to be started, the voltage, frequency and phase parameters of the diesel power generation system (10) are monitored in real time through the 2 nd power sampling sensor (21), the mobile energy storage power supply system (17) is controlled to be synchronous with the diesel power generation system (10), the on-line diesel power generation switching electric control switch (14) is controlled to be closed after the synchronous, and the on-line connection controller (11) controls the diesel power generation system (10) and the mobile energy storage power supply system (17) to be complementary to supply power for a power bus powered by an electric load.
The invention relates to a diesel-electricity-storage complementary mobile power supply online connection expansion device and a diesel-electricity-storage complementary mobile power supply online connection expansion system, which are characterized in that a multi-power supply online expansion connection and switching device (100) is connected in series at the front end or the rear end of a main inlet switch of a low-voltage distribution box UP, an electric control switch (19) is powered by power grid power to supply power to a power bus powered by an electric load through a power supply power line (101), a mobile energy storage power supply system (17) is connected to a mobile energy storage power supply connecting terminal (16) on line without power failure, and a diesel-electricity generation system (10) is connected to a diesel-electricity power supply connecting terminal (105) on line without power failure; the online connection controller (11) respectively monitors voltage, frequency and phase parameters of the power grid power and the diesel power generation system (10) in real time through the 1 st power sampling sensor (20) and the 2 nd power sampling sensor (21), controls the synchronization of the mobile energy storage power supply system (17) and the power grid power, controls the synchronization of the mobile energy storage power supply system (17) and the diesel power generation system (10), controls the disconnection of the power grid power supply electric control switch (19) according to the set control sequence, controls the closing of the online energy storage switching electric control switch (12) and the online diesel generation switching electric control switch (14), realizes uninterrupted operation of the diesel power generation system (10) and the mobile energy storage power supply system (17), online connection and switching, overcomes the defects and shortcomings of the prior art, and has the advantages of simplicity, high efficiency, low cost, high safety, full automation, reliability and high practical value.
It should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the invention.
Claims (6)
1. An on-line connection expansion device and system for a diesel-storage complementary mobile power supply, comprising: the diesel power generation system comprises a diesel power generation system, an online connection controller, an online energy storage switching electric control switch, an online energy storage power supply expansion power line, an online diesel generation switching electric control switch, a mobile expansion power supply access power terminal, a mobile energy storage power supply connecting terminal, a mobile energy storage power supply system, an expansion device control line, a power grid power supply electric control switch, a power supply power line, a 1 st power supply power line connecting terminal, a 2 nd power supply power line connecting terminal, an online diesel power generation source expansion power line, a diesel power generation source connecting terminal, a 1 st power sampling sensor and a 2 nd power sampling sensor; the power supply system is characterized in that a 1 st power supply power line connecting terminal of the multi-power supply on-line expansion connection and switching device is connected with a main incoming line switch of a low-voltage distribution box UP, and a 2 nd power supply power line connecting terminal is connected with a power bus for supplying power to a power load; the mobile energy storage power supply system is connected with a mobile expansion power supply access power terminal of a power supply line through a mobile energy storage power supply connection terminal; the diesel power generation system is connected with a mobile extension power supply access power terminal of a power supply line through a diesel power generation source connection terminal; and the on-line connection controller of the multi-power supply on-line expansion connection and switching device is respectively connected with the diesel power generation system and the mobile energy storage power supply system through control lines of the expansion device to form a system framework of the on-line controlled interactive switching of the diesel power generation system and the mobile energy storage power supply system in a complementary capacity expansion and uninterrupted power mode and the power grid.
2. The on-line connection expansion device and system for the diesel-electric complementary mobile power supply according to claim 1, wherein the electric power supply electric control switch of the power grid of the multi-power on-line expansion connection and switching device is respectively connected with a 1 st power supply power line connecting terminal and a 2 nd power supply power line connecting terminal through power supply power lines; one end of the on-line energy storage switching electric control switch is connected to a power supply line mobile expansion power supply connected between the power supply electric control switch and the 2 nd power supply power line connecting terminal through an on-line energy storage power supply expansion power line, and the other end of the on-line energy storage switching electric control switch is connected to a mobile energy storage power supply connecting terminal; the 1 st power sampling sensor is connected to a power supply power line between the power supply electric control switch of the power grid and the 1 st power supply power line connecting terminal; one end of the on-line diesel power generation switching electric control switch is connected to a mobile expansion power supply on a power supply power line between the power supply electric control switch and a 2 nd power supply power line connecting terminal through an on-line diesel power generation source expansion power line, and the other end of the on-line diesel power generation switching electric control switch is connected to the diesel power generation source connecting terminal; the 2 nd electric power sampling sensor is connected to an online diesel power generation source expansion power line between the online diesel power generation switching electric control switch and the diesel power generation source connecting terminal; the online connection controller is respectively connected with the online energy storage switching electric control switch, the online diesel engine switching electric control switch, the power supply electric control switch of the power grid, the 1 st electric sampling sensor and the 2 nd electric sampling sensor through control lines of the expansion device; the multi-power supply on-line expansion connection and switching device with the uninterrupted operation framework is formed.
3. The on-line connection expansion device and system for the diesel-electric complementary mobile power supply according to claim 1, wherein the power grid is operated under normal power supply, the main inlet wire switch of the low-voltage distribution box UP and the electric power supply electric control switch of the power grid are closed, and meanwhile, the on-line energy storage switching electric control switch and the on-line diesel engine switching electric control switch are opened; the grid power is supplied to a power bus that is supplied by an electrical load.
4. The on-line connection expansion device and system for a diesel-electric complementary mobile power supply according to claim 1, wherein the mobile energy storage power supply system is connected and supplied with power without power outage operation in the power supply operation of a power grid; namely: the method comprises the steps that an on-line energy storage switching electric control switch and an on-line diesel generation switching electric control switch are opened, a main inlet switch of a low-voltage distribution box UP and a power grid power supply electric control switch are closed, power grid power is supplied to a power bus powered by an electric load, a mobile energy storage power supply system is connected to a mobile energy storage power supply connecting terminal on line without power failure in power grid power supply operation, an on-line connection controller controls the mobile energy storage power supply system to be opened, voltage, frequency and phase parameters of power grid power are monitored in real time through a 1 st power sampling sensor, the mobile energy storage power supply system is controlled to be synchronous with the power grid power, and the on-line energy storage switching electric control switch is controlled to be closed after the synchronous period, and the power grid power supply electric control switch is controlled to be opened; the mobile energy storage power supply system is connected without power outage operation and supplies power for a power bus for supplying power to an electric load.
5. The on-line connection expansion device and system for the diesel-storage complementary mobile power supply according to claim 1, wherein the diesel power generation system is connected and supplied with power without power outage operation in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch and the on-line diesel engine switching electric control switch are opened, a main inlet switch of the low-voltage distribution box UP and a power grid power supply electric control switch are closed, and power grid power is supplied to a power bus powered by an electric load; in the power supply operation of the power grid, the diesel power generation system is connected to a diesel power generation source connecting terminal on line without power failure, the on-line connection controller controls the diesel power generation system to be started, the voltage, frequency and phase parameters of the power grid power are monitored in real time through a 1 st power sampling sensor, the diesel power generation system is controlled to be synchronous with the power grid power, and an on-line diesel power generation switching electric control switch is controlled to be disconnected after the synchronous; the diesel power generation system is connected without power outage operation, and supplies power for a power bus for supplying power to an electric load.
6. The on-line connection expansion device and system for the diesel-storage complementary mobile power supply according to claim 1, wherein the diesel power generation system and the mobile energy storage power supply system are complementary and are connected and powered without power outage in the power supply operation of a power grid; namely: the on-line energy storage switching electric control switch and the on-line diesel engine switching electric control switch are opened, a main inlet switch of the low-voltage distribution box UP and a power grid power supply electric control switch are closed, and power grid power is supplied to a power bus powered by an electric load; the mobile energy storage power supply system is connected to the mobile energy storage power supply connecting terminal on line without power outage in the power supply operation of the power grid, and meanwhile, the diesel power generation system is connected to the diesel power generation source connecting terminal on line without power outage; the on-line connection controller monitors voltage, frequency and phase parameters of the power grid power in real time through a 1 st power sampling sensor, controls the mobile energy storage power supply system to be started and controls the on-line energy storage switching electric control switch to be closed after the on-line energy storage switching electric control switch is synchronous with the power grid power, and controls the power grid power supply electric control switch to be opened; the mobile energy storage power supply system supplies power for a power bus for supplying power to the power load; and the on-line connection controller controls the diesel power generation system to be started, monitors the voltage, frequency and phase parameters of the diesel power generation system in real time through the 2 nd power sampling sensor, controls the mobile energy storage power supply system to be synchronous with the diesel power generation system, and controls the on-line diesel power generation switching electric control switch to be closed after synchronous, and the on-line connection controller controls the diesel power generation system and the mobile energy storage power supply system to be complementary to supply power for a power bus for supplying power to an electric load.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603694.2A CN117239818A (en) | 2022-06-06 | 2022-06-06 | On-line connection expansion device and system for diesel-storage complementary mobile power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210603694.2A CN117239818A (en) | 2022-06-06 | 2022-06-06 | On-line connection expansion device and system for diesel-storage complementary mobile power supply |
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