CN109256793B - Control method of multifunctional energy storage mobile ship shore power system - Google Patents
Control method of multifunctional energy storage mobile ship shore power system Download PDFInfo
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- CN109256793B CN109256793B CN201710560765.4A CN201710560765A CN109256793B CN 109256793 B CN109256793 B CN 109256793B CN 201710560765 A CN201710560765 A CN 201710560765A CN 109256793 B CN109256793 B CN 109256793B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 215
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 68
- 238000004804 winding Methods 0.000 claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims description 67
- 238000004891 communication Methods 0.000 claims description 58
- 238000007599 discharging Methods 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 230000003993 interaction Effects 0.000 claims description 9
- 238000007726 management method Methods 0.000 abstract description 46
- 238000005516 engineering process Methods 0.000 abstract description 9
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/34—Arrangements for transfer of electric power between networks of substantially different frequency
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of port ship shore power, and particularly relates to a multifunctional energy storage mobile ship shore power system and a control method. The multifunctional energy storage mobile ship shore power system is realized by an intelligent control bidirectional energy storage inversion system and a multi-winding transformer construction technology; the system overcomes the adverse effects of the factors such as wharf facilities and the current situation of electric power, wharf production planning and management, ship operation and the like on the construction of a ship shore power system, and realizes the bidirectional multipurpose ship power supply and storage of high-voltage 50Hz/10KV (or 6 KV) electric power and high-voltage 60Hz/6.6KV electric power or low-voltage 60Hz/0.45KV electric power and 50Hz/0.4KV electric power through an energy storage inversion technology; the power supply device meets the power supply requirements of a plurality of ships of different types in a port and a dock, provides power with different power utilization specifications, provides movable, peak-shaving, economic and flexible power supply, is convenient for the ships which are applied to the equipment beyond the wiring range to implement power supply and power utilization, and can provide clean and economic power for a plurality of ships waiting on the anchor.
Description
Technical Field
The invention belongs to the technical field of port ship shore power, and particularly relates to a control method of a multifunctional energy storage mobile ship shore power system.
Background
The ships at the port dock have to use the ship auxiliary power generation to meet the power demand at any moment, and a great deal of pollution such as waste gas, noise and the like are generated in the process, so that the ship shore power supply technology is generated to solve the problem. The ship shore power supply technology refers to stopping the power supply of a generator on a ship during the period that the ship is berthed at a port and a dock, and replacing the self power generation and the power supply of the ship with the shore power on the dock through a cable.
The construction of a ship shore power system is influenced by factors such as wharf facilities and current conditions of power, wharf production planning and management, ship operation and the like, and particularly, the prior art mostly adopts 50Hz/10KV (or 6 KV) power access of a public power grid transformer room and provides a ship shore power supply system, and the ship shore power supply system is rectified and converted into 60Hz/0.45KV ship power by frequency conversion; because the port and the dock have a plurality of ships with different types to dock, the electricity utilization specifications are various, the shore power equipment facilities in the prior art are relatively fixed, the applicability to different application scenes is poor, the timeliness of power supply is not easy to adjust, the application range is limited greatly, the power supply is difficult to apply to power supply and power utilization beyond the wiring range of the equipment, clean power cannot be provided for a plurality of ships waiting on the anchor, and the economy of power utilization cannot be optimized.
Disclosure of Invention
In order to solve the defects and shortcomings of the prior art, the invention provides a control method of a multifunctional energy storage mobile ship shore power system, which is characterized in that the multifunctional energy storage mobile ship shore power system comprises: the system comprises a main control system module, a current source controller, a voltage source controller, a 60Hz frequency controller, a 50Hz frequency controller, a bidirectional inverter module, a multi-winding transformer, a system bus, a communication circuit module, a direct current bus bar, a monitoring communication link, a power circuit module, a manual control panel, a power supply circuit module, a power supply circuit board, a power supply, a remote communication network, data center and mobile terminal, the mth group energy storage battery string module, the nth group energy storage battery string module, the mth group energy storage battery management system BMS module, the nth group energy storage battery management system BMS module, 60Hz/0.45KV power line electric control switch 50Hz/0.4KV power line electric control switch, 60Hz/6.6KV power line electric control switch, 50Hz/10KV or 50Hz/6KV power line electric control switch, mth group energy storage battery pack series connection electric control switch, nth group energy storage battery pack series connection electric control switch, 60Hz/0.45KV power monitoring sensor, 50Hz/0.4KV power monitoring sensor, 60Hz/6.6KV power monitoring sensor, 50Hz/10KV or 50Hz/6KV power monitoring sensor, 60Hz/0.45KV power input/output connector, 50Hz/0.4KV power input/output connector, 60Hz/6.6KV power input/output connector, 50Hz/10 or 50Hz/6KV power input/output connector, wherein:
the m-th group of energy storage battery string modules are connected with the electric control switch through the m-th group of energy storage battery string, are connected with the direct current bus bar through the direct current bus bar, are connected with the direct current connecting terminal of the bidirectional inverter module, are connected with the multi-winding transformer through the alternating current connecting terminal of the bidirectional inverter module, and are connected with the 60Hz/0.45KV electric power input/output connector through the 60Hz/0.45KV electric power electric control switch connected with the multi-winding transformer to form a 60Hz/0.45KV electric power and electric energy exchange power path of the m-th group of energy storage battery string modules;
the m-th group of energy storage battery string modules are connected with an electric control switch through the m-th group of energy storage battery string, are connected with a direct current bus bar through the direct current bus bar, are connected with a direct current connecting terminal of the bidirectional inverter module, are connected with a multi-winding transformer through an alternating current connecting terminal of the bidirectional inverter module, and are connected with a 50Hz/0.4KV power input/output connector through a 50Hz/0.4KV power electric control switch connected with the multi-winding transformer to form a 50Hz/0.4KV power and power energy exchange power path of the m-th group of energy storage battery string modules;
the m-th group of energy storage battery string modules are connected with the electric control switch through the m-th group of energy storage battery string, are connected with the direct current bus bar through the direct current bus bar, are connected with the direct current connecting terminal of the bidirectional inverter module, are connected with the multi-winding transformer through the alternating current connecting terminal of the bidirectional inverter module, and are connected with the 60Hz/6.6KV electric power input/output connector through the 60Hz/6.6KV electric power electric control switch connected with the multi-winding transformer to form a 60Hz/6.6KV electric power and electric energy exchange power path of the m-th group of energy storage battery string modules;
the m-th group of energy storage battery string modules are connected with an electric control switch through the m-th group of energy storage battery string, are connected with a direct current bus bar through the direct current bus bar, are connected with a direct current connecting terminal of the bidirectional inverter module, are connected with a multi-winding transformer through an alternating current connecting terminal of the bidirectional inverter module, and are connected with a 50Hz/10KV or 50Hz/6KV power input/output connector through a 50Hz/10KV or 50Hz/6KV power electric energy exchange power path of the m-th group of energy storage battery string modules;
the n-th group of energy storage battery string modules are connected with the electric control switch through the n-th group of energy storage battery string, are connected with the direct current bus bar through the direct current bus bar, are connected with the direct current connecting terminal of the bidirectional inverter module, are connected with the multi-winding transformer through the alternating current connecting terminal of the bidirectional inverter module, and are connected with the 60Hz/0.45KV electric power input/output connector through the 60Hz/0.45KV electric power electric control switch connected with the multi-winding transformer to form a 60Hz/0.45KV electric power and electric energy exchange power path of the n-th group of energy storage battery string modules;
the n-th group of energy storage battery string modules are connected with the electric control switch through the n-th group of energy storage battery string, are connected with the direct current bus bar through the direct current bus bar, are connected with the direct current connecting terminal of the bidirectional inverter module, are connected with the multi-winding transformer through the alternating current connecting terminal of the bidirectional inverter module, and are connected with the 50Hz/0.4KV electric power input/output connector through the 50Hz/0.4KV electric power electric control switch connected with the multi-winding transformer to form a 50Hz/0.4KV electric power and electric energy exchange power path of the n-th group of energy storage battery string modules;
the n-th group of energy storage battery string modules are connected with the electric control switch through the n-th group of energy storage battery string, are connected with the direct current bus bar through the direct current bus bar, are connected with the direct current connecting terminal of the bidirectional inverter module, are connected with the multi-winding transformer through the alternating current connecting terminal of the bidirectional inverter module, and are connected with the 60Hz/6.6KV electric power input/output connector through the 60Hz/6.6KV electric power electric control switch connected with the multi-winding transformer to form a 60Hz/6.6KV electric power and electric energy exchange power path of the n-th group of energy storage battery string modules;
the n-th group of energy storage battery string modules are connected with an electric control switch through the n-th group of energy storage battery string, are connected with a direct current bus bar through the direct current bus bar, are connected with a direct current connecting terminal of the bidirectional inverter module, are connected with a multi-winding transformer through an alternating current connecting terminal of the bidirectional inverter module, and are connected with a 50Hz/10KV or 50Hz/6KV power input/output connector through a 50Hz/10KV or 50Hz/6KV power electric energy exchange power path of the n-th group of energy storage battery string modules;
the main control system module is respectively connected with the current source controller, the voltage source controller, the 60Hz frequency controller, the 50Hz frequency controller and the bidirectional inverter module through a system bus to form a bidirectional inversion frequency and operation regulation control link;
the main control system module is connected with a monitoring communication link through the communication circuit module, and is respectively connected with an m-th group energy storage battery management system BMS module, an n-th group energy storage battery management system BMS module, a 60Hz/0.45KV power line electric control switch, a 50Hz/0.4KV power line electric control switch, a 60Hz/6.6KV power line electric control switch, a 50Hz/10KV or 50Hz/6KV power line electric control switch, an m-th group energy storage battery series connection electric control switch, an n-th group energy storage battery series connection electric control switch, a 60Hz/0.45KV power monitoring sensor, a 50Hz/0.4KV power monitoring sensor, a 60Hz/6.6KV power monitoring sensor and a 50Hz/10KV or 50Hz/6KV power monitoring sensor through the monitoring communication link, so as to form a ship shore power system real-time monitoring and control link;
the main control system module is connected with the monitoring communication link through the communication circuit module, and is connected with the manual control panel through the monitoring communication link to form a communication link manually controlled by the ship shore power system;
the main control system module is connected with the communication circuit module, and the communication circuit module is connected with the data center and the mobile terminal through a remote communication network to form a communication link for information interaction between the data center and the mobile terminal and the ship shore power system;
the power circuit module is connected with the main control system module to form a power supply power path of the system power supply;
the system comprises an m-th group of energy storage battery pack management system BMS module, a master control system module, a monitoring communication link and a communication circuit module, wherein the m-th group of energy storage battery pack management system BMS module is connected with the m-th group of energy storage battery pack string module, and is connected with the master control system module through the monitoring communication link and the communication circuit module in sequence to form a control link for information interaction between the m-th group of energy storage battery pack management system BMS module and the master control system module and monitoring and balancing of the energy storage batteries;
the system comprises an n-th group of energy storage battery pack management system BMS module, a main control system module, a monitoring communication link and a communication circuit module, wherein the n-th group of energy storage battery pack management system BMS module is connected with the n-th group of energy storage battery pack string module, and is connected with the main control system module through the monitoring communication link and the communication circuit module in sequence to form a control link for information interaction between the n-th group of energy storage battery pack management system BMS module and the main control system module and monitoring and balancing of the energy storage batteries;
the control method of the multifunctional energy storage mobile ship shore power system is applied to the multifunctional energy storage mobile ship shore power system and comprises the following steps of:
1) The system is powered on for self-checking, alarming and entering an exception handling flow when in exception;
2) The data center and the mobile terminal are communicated in normal time, and parameters and operation modes are set and selected by the manual work, the data center and the mobile terminal;
3) If the setting and selecting parameters and the running mode are not in accordance with the requirements, the system prompts to reset and select; otherwise, enter the selected mode of operation, namely:
energy storage battery charging mode: the main control system module controls C3 or C4 to be closed, detects and analyzes whether monitoring data of the BMS module of the energy storage battery pack management system are normal or not, alarms when abnormal, and enters an abnormal processing flow; selecting a corresponding 60Hz frequency controller or a 50Hz frequency controller according to the closed state of C3 or C4 during normal operation, calling a current source controller by a main control system module to control a bidirectional inverter module to charge an energy storage battery according to a set corresponding charging strategy, monitoring the charge state of the battery in real time by the BMS module, and repeatedly monitoring and charging the charge state of the battery in real time by the BMS module until the battery is full when the charge state of the battery does not reach a full set mark; the main control system module calculates and analyzes monitoring data of the BMS module of the energy storage battery pack management system, generates a charge-discharge plan and sends prompt information;
and (3) an energy storage battery discharging mode: the master control system module controls C1 or C2 to be closed, detects and analyzes whether monitoring data of the BMS module of the m-th group of energy storage battery pack management system and the BMS module of the n-th group of energy storage battery pack management system are normal or not, and alarms and enters an abnormal processing flow when abnormal; when the state of the electric quantity is not up to the set mark of the electric quantity discharge, continuously carrying out the state of charge of the storage battery in real time monitoring of the storage battery in the m th group of energy storage battery management system BMS modules and the n th group of energy storage battery management system BMS modules and keeping discharging power supply until the set mark of the electric quantity discharge is up; the master control system module calculates and analyzes monitoring data of an m-th group energy storage battery pack management system BMS module and an n-th group energy storage battery pack management system BMS module, generates a charge-discharge plan and sends prompt information;
4) Returning to the step 2), waiting for entering the next charge and discharge task flow.
A multifunctional energy-storage movable ship shore power system and a control method thereof, wherein a 60Hz/0.45KV power line electric control switch, a 50Hz/0.4KV power line electric control switch, a 60Hz/6.6KV power line electric control switch, a 50Hz/10KV or a 50Hz/6KV power line electric control switch are characterized in that a normally-open state switch is adopted, and the 60Hz/0.45KV power line electric control switch and the 50Hz/0.4KV power line electric control switch are in single-closed interlocking, namely, only one switch is closed at the same time; and the 60Hz/6.6KV power line electric control switch and the 50Hz/10KV or 50Hz/6KV power line electric control switch are in single-closing interlocking, namely only one switch is closed at the same time.
The invention relates to a multifunctional energy storage mobile ship shore power system and a control method, which realize the multifunctional energy storage mobile ship shore power system through an intelligent control bidirectional energy storage inversion system and a multi-winding transformer construction technology; the adverse effects of factors such as wharf facilities and power status quo, wharf production planning and management, ship operation and the like on the construction of a ship shore power system are overcome, and the bidirectional multipurpose ship power supply and storage of high-voltage 50Hz/10KV or 50Hz/6KV power and high-voltage 60Hz/6.6KV power or low-voltage 60Hz/0.45KV power and 50Hz/0.4KV power are realized through an energy storage inversion technology; the system meets the power supply of a plurality of ships of different types in a port and a dock, provides electric power with different power utilization specifications, thoroughly changes the relative fixation of shore power equipment facilities in the prior art, provides movable, adjustable peak and economic and flexible power supply for the defect of poor applicability to different application scenes, is convenient for being applied to ships outside the wiring range of equipment to implement power supply and power utilization, and can provide clean and economic electric power for a plurality of ships waiting on the anchor.
Drawings
Fig. 1 is a schematic block diagram of a multifunctional energy storage mobile ship shore power system.
Fig. 2 is a main control flow chart of a control method of the multifunctional energy storage mobile ship shore power system.
Detailed Description
As an implementation example, a control method of a multifunctional energy storage mobile ship shore power system is described with reference to fig. 1, but the technology and scheme of the present invention are not limited to the content given in this implementation example.
As shown in fig. 1, the present invention provides a control method of a multifunctional energy-storage mobile ship shore power system, which is characterized in that the multifunctional energy-storage mobile ship shore power system includes: main control system module (1), current source controller (2), voltage source controller (3), 60Hz frequency controller (4), 50Hz frequency controller (5), bidirectional inverter module (6), multi-winding transformer (7), system bus (8), communication circuit module (9), direct current bus bar (10), monitoring communication link (11), power circuit module (12), manual control panel (13), remote communication network (14), data center and mobile terminal (15), mth group energy storage battery string module (sm), nth group energy storage battery string module (sn), mth group energy storage battery management system BMS module (bm), nth group energy storage battery management system BMS module (bn),
60Hz/0.45KV power line electric control switch (k 1), 50Hz/0.4KV power line electric control switch (k 2),
60Hz/6.6KV power line electric control switch (k 3), 50Hz/10KV or 50Hz/6KV power line electric control switch (k 4), mth group energy storage battery pack series electric control switch (km), nth group energy storage battery pack series electric control switch (kn), 60Hz/0.45KV power monitoring sensor (T1), 50Hz/0.4KV power monitoring sensor (T2), 60Hz/6.6KV power monitoring sensor (T3), 50Hz/10KV or 50Hz/6KV power monitoring sensor (T4), 60Hz/0.45KV power input/output connector (C1), 50Hz/0.4KV power input/output connector (C2), 60Hz/6.6KV power input/output connector (C3), 50Hz/10KV or 50Hz/6KV power input/output connector (C4), wherein:
the m-th group of energy storage battery string modules (sm) are connected with a direct current bus bar (10) through an electric control switch (km) of the m-th group of energy storage battery string, are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 60Hz/0.45KV power line electric control switch (k 1) connected with the multi-winding transformer (7) through a 60Hz/0.45KV power input/output connector (C1) to form a 60Hz/0.45KV power energy exchange power path of the m-th group of energy storage battery string modules (sm);
the m-th group of energy storage battery string modules (sm) are connected with a direct current bus bar (10) through an electric control switch (km) of the m-th group of energy storage battery string, are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 50Hz/0.4KV power line electric control switch (k 2) connected with the multi-winding transformer (7) through a 50Hz/0.4KV power input/output connector (C2) to form a 50Hz/0.4KV power energy exchange power path of the m-th group of energy storage battery string modules (sm);
the m-th group of energy storage battery string modules (sm) are connected with a direct current bus bar (10) through an electric control switch (km) of the m-th group of energy storage battery string, are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 60Hz/6.6KV power line electric control switch (k 3) connected with the multi-winding transformer (7) to form a 60Hz/6.6KV power and energy exchange power path of the m-th group of energy storage battery string modules (sm);
the m-th group of energy storage battery string modules (sm) are connected with an electric control switch (km) through the m-th group of energy storage battery string, are connected with a direct current bus bar (10), are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 50Hz/10KV or 50Hz/6KV electric power input/output connector (C4) through a 50Hz/10KV or 50Hz/6KV electric power electric energy exchange power path of the m-th group of energy storage battery string modules (sm);
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 60Hz/0.45KV electric power input/output connector (C1) through the 60Hz/0.45KV electric power electric control switch (k 1) connected with the multi-winding transformer (7), so that a 60Hz/0.45KV electric power and energy exchange power path of the n-th group of energy storage battery string modules (sn) is formed;
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 50Hz/0.4KV electric power input/output connector (C2) through the 50Hz/0.4KV electric power electric control switch (k 2) connected with the multi-winding transformer (7), so that a 50Hz/0.4KV electric power and energy exchange power path of the n-th group of energy storage battery string modules (sn) is formed;
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 60Hz/6.6KV electric power input/output connector (C3) through the 60Hz/6.6KV electric power electric control switch (k 3) connected with the multi-winding transformer (7), so that a 60Hz/6.6KV electric power and energy exchange power path of the n-th group of energy storage battery string modules (sn) is formed;
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 50Hz/10KV or 50Hz/6KV power line electric control switch (k 4) through the multi-winding transformer (7) to form a 50Hz/10KV or 50Hz/6KV power electric energy exchange power path of the n-th group of energy storage battery string modules (sn);
the main control system module (1) is respectively connected with the current source controller (2), the voltage source controller (3), the 60Hz frequency controller (4), the 50Hz frequency controller (5) and the bidirectional inverter module (6) through the system bus (8) to form a bidirectional inversion frequency and operation regulation control link;
the main control system module (1) is connected with the monitoring communication link (11) through the communication circuit module (9), and the monitoring communication link (11) is respectively connected with an m-th group energy storage battery management system BMS module (bm), an n-th group energy storage battery management system BMS module (bn), a 60Hz/0.45KV power line electric control switch (k 1), a 50Hz/0.4KV power line electric control switch (k 2), a 60Hz/6.6KV power line electric control switch (k 3), a 50Hz/10KV or a 50Hz/6KV power line electric control switch (k 4), an m-th group energy storage battery series connection electric control switch (km), an n-th group energy storage battery series connection electric control switch (kn), a 60Hz/0.45KV power monitoring sensor (T1), a 50Hz/0.4KV power monitoring sensor (T2), a 60Hz/6.6KV power monitoring sensor (T3), a 50Hz/10KV or a 50Hz/6KV power monitoring sensor (T4) to form a ship shore power system real-time monitoring and control link;
the main control system module (1) is connected with the monitoring communication link (11) through the communication circuit module (9), and the monitoring communication link (11) is connected with the manual control panel (13) to form a communication link for manual control of the ship shore power system;
the main control system module (1) is connected with the communication circuit module (9), and the communication circuit module (9) is connected with the data center and the mobile terminal (15) through the remote communication network (14) to form a communication link for information interaction between the data center and the mobile terminal (15) and the shore power system of the ship;
the power supply circuit module (12) is connected with the main control system module (1) to form a system power supply power path;
the system comprises an mth group of energy storage battery pack management system BMS module (bm) and a main control system module (1), wherein the mth group of energy storage battery pack management system BMS module (bm) is connected with the mth group of energy storage battery pack string module (sm) and is connected with the main control system module (1) through a monitoring communication link (11) and a communication circuit module (9) in sequence, so that a control link for information interaction between the mth group of energy storage battery pack management system BMS module (bm) and the main control system module (1) and monitoring and balancing of the energy storage batteries is formed;
the n-th group of energy storage battery pack management system BMS module (bn) is connected with the n-th group of energy storage battery pack string module (sn) and is connected with the main control system module (1) through the monitoring communication link (11) and the communication circuit module (9) in sequence, so that a control link for information interaction between the n-th group of energy storage battery pack management system BMS module (bn) and the main control system module (1) and monitoring and balancing of the energy storage batteries is formed;
as shown in fig. 2, the control method of the multifunctional energy-storage mobile ship shore power system is applied to the multifunctional energy-storage mobile ship shore power system, and comprises the following steps:
1) The system is powered on for self-checking, alarming and entering an exception handling flow when in exception;
2) The data center and the mobile terminal (15) are communicated in normal time, and parameters and operation modes are set and selected by the manual work, the data center and the mobile terminal (15);
3) If the setting and selecting parameters and the running mode are not in accordance with the requirements, the system prompts to reset and select; otherwise, enter the selected mode of operation, namely:
energy storage battery charging mode: the main control system module (1) controls C3 or C4 to be closed, detects and analyzes whether monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system are normal or not, and alarms and enters an abnormal processing flow when abnormal; the method comprises the steps that a corresponding 60Hz frequency controller (4) or 50Hz frequency controller (5) is selected according to a C3 or C4 closed state in normal time, a main control system module (1) calls a current source controller (2) to control a bidirectional inverter module (6) to charge an energy storage battery according to a set corresponding charging strategy, an m-th energy storage battery management system BMS module (bm) and an n-th energy storage battery management system BMS module (bn) monitor the charge state of the battery in real time, and when a full-charge set mark is not reached, the m-th energy storage battery management system BMS module (bm) and the n-th energy storage battery management system BMS module (bn) monitor the charge state of the battery in real time and charge the battery in a repeated mode until the full-charge is completed; the main control system module (1) calculates and analyzes the monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system, generates a charge and discharge plan and sends prompt information;
and (3) an energy storage battery discharging mode: the main control system module (1) controls the C1 or C2 to be closed, detects and analyzes whether monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system are normal or not, and alarms and enters an abnormal processing flow when abnormal; the method comprises the steps that a corresponding 60Hz frequency controller (4) or 50Hz frequency controller (5) is selected according to the closed state of C1 or C2 in normal time, a main control system module (1) calls a voltage source controller (3) to control a bidirectional inverter module (6) to control an energy storage battery to serve as a power supply according to a set corresponding discharging strategy, an mth group of energy storage battery management system BMS module (bm) and an n group of energy storage battery management system BMS module (bn) monitor the charge state of the battery in real time, and when a set sign of electric quantity discharging is not achieved, the mth group of energy storage battery management system BMS module (bm) and the n group of energy storage battery management system BMS module (bn) continuously monitor the charge state of the battery in real time and keep discharging and supplying power until a set sign of electric quantity discharging is achieved, and discharging is stopped; the main control system module (1) calculates and analyzes monitoring data of the BMS module of the energy storage battery pack management system, generates a charge-discharge plan and sends prompt information;
4) Returning to the step 2), waiting for entering the next charge and discharge task flow.
The multifunctional energy storage mobile ship shore power system and the control method thereof are characterized in that a normally-open state switch is adopted, and the 60Hz/0.45KV power line electric control switch (k 1) and the 50Hz/0.4KV power line electric control switch (k 2), the 60Hz/6.6KV power line electric control switch (k 3) and the 50Hz/10KV or 50Hz/6KV power line electric control switch (k 4) are in single-closed interlocking, namely, only one switch is closed at the same time; and the 60Hz/6.6KV power line electric control switch (k 3) and the 50Hz/10KV or 50Hz/6KV power line electric control switch (k 4) are in single-closing interlocking, namely only one switch is closed at the same time.
The invention relates to a multifunctional energy storage mobile ship shore power system and a control method, which realize the multifunctional energy storage mobile ship shore power system through an intelligent control bidirectional energy storage inversion system and a multi-winding transformer construction technology; the adverse effects of factors such as wharf facilities and power status quo, wharf production planning and management, ship operation and the like on the construction of a ship shore power system are overcome, and the bidirectional multipurpose ship power supply and storage of high-voltage 50Hz/10KV or 50Hz/6KV power and high-voltage 60Hz/6.6KV power or low-voltage 60Hz/0.45KV power and 50Hz/0.4KV power are realized through an energy storage inversion technology; the system meets the power supply of a plurality of ships of different types in a port and a dock, provides electric power with different power utilization specifications, thoroughly changes the relative fixation of shore power equipment facilities in the prior art, provides movable, adjustable peak and economic and flexible power supply for the defect of poor applicability to different application scenes, is convenient for being applied to ships outside the wiring range of equipment to implement power supply and power utilization, and can provide clean and economic electric power for a plurality of ships waiting on the anchor.
Claims (2)
1. A control method of a multifunctional energy storage mobile ship shore power system is characterized in that the multifunctional energy storage mobile ship shore power system comprises the following steps: master control system module (1), current source controller (2), voltage source controller (3), 60Hz frequency controller (4), 50Hz frequency controller (5), bidirectional inverter module (6), multi-winding transformer (7), system bus (8), communication circuit module (9), direct current bus bar (10), monitoring communication link (11), power circuit module (12), manual control panel (13), remote communication network (14), data center and mobile terminal (15), m-th energy storage battery string module (sm), n-th energy storage battery string module (sn), m-th energy storage battery management system BMS module (bm), n-th energy storage battery management system BMS module (bn), 60Hz/0.45KV power line electric control switch (k 1), 50Hz/0.4KV power line electric control switch (k 2), 60Hz/6.6KV power line electric control switch (k 3), 50Hz/10KV or 50Hz/6KV power line electric control switch (k 4), m-th energy storage battery connection electric control switch (battery), n-th energy storage battery string module (sm), n-th energy storage battery management system BMS module (bm), n-th energy storage battery management system BMS module (bn), 60Hz/0.45KV power line electric control switch (k 1), 50Hz/0.4KV power line electric control switch (k 2), 60 KV/6 KV electric power line electric control switch (k 6 KV/6 KV electric sensor (k 4), 50Hz/6KV electric power sensor (50 Hz/6T/6 KW sensor (6T 2), 50Hz/6 KV/6T/6 KV sensor (6T/6T power sensor series sensor) 60Hz/0.45KV power input output connector (C1), 50Hz/0.4KV power input output connector (C2), 60Hz/6.6KV power input output connector (C3), 50Hz/10KV or 50Hz/6KV power input output connector (C4), wherein:
the m-th group of energy storage battery string modules (sm) are connected with a direct current bus bar (10) through an electric control switch (km) of the m-th group of energy storage battery string, are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 60Hz/0.45KV power line electric control switch (k 1) connected with the multi-winding transformer (7) through a 60Hz/0.45KV power input/output connector (C1) to form a 60Hz/0.45KV power energy exchange power path of the m-th group of energy storage battery string modules (sm);
the m-th group of energy storage battery string modules (sm) are connected with a direct current bus bar (10) through an electric control switch (km) of the m-th group of energy storage battery string, are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 50Hz/0.4KV power line electric control switch (k 2) connected with the multi-winding transformer (7) through a 50Hz/0.4KV power input/output connector (C2) to form a 50Hz/0.4KV power energy exchange power path of the m-th group of energy storage battery string modules (sm);
the m-th group of energy storage battery string modules (sm) are connected with a direct current bus bar (10) through an electric control switch (km) of the m-th group of energy storage battery string, are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 60Hz/6.6KV power line electric control switch (k 3) connected with the multi-winding transformer (7) to form a 60Hz/6.6KV power and energy exchange power path of the m-th group of energy storage battery string modules (sm);
the m-th group of energy storage battery string modules (sm) are connected with an electric control switch (km) through the m-th group of energy storage battery string, are connected with a direct current bus bar (10), are connected with a direct current connecting terminal of a bidirectional inverter module (6) through the direct current bus bar (10), are connected with a multi-winding transformer (7) through an alternating current connecting terminal of the bidirectional inverter module (6), and are connected with a 50Hz/10KV or 50Hz/6KV electric power input/output connector (C4) through a 50Hz/10KV or 50Hz/6KV electric power electric energy exchange power path of the m-th group of energy storage battery string modules (sm);
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 60Hz/0.45KV electric power input/output connector (C1) through the 60Hz/0.45KV electric power electric control switch (k 1) connected with the multi-winding transformer (7), so that a 60Hz/0.45KV electric power and energy exchange power path of the n-th group of energy storage battery string modules (sn) is formed;
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 50Hz/0.4KV electric power input/output connector (C2) through the 50Hz/0.4KV electric power electric control switch (k 2) connected with the multi-winding transformer (7), so that a 50Hz/0.4KV electric power and energy exchange power path of the n-th group of energy storage battery string modules (sn) is formed;
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 60Hz/6.6KV electric power input/output connector (C3) through the 60Hz/6.6KV electric power electric control switch (k 3) connected with the multi-winding transformer (7), so that a 60Hz/6.6KV electric power and energy exchange power path of the n-th group of energy storage battery string modules (sn) is formed;
the n-th group of energy storage battery string modules (sn) are connected with the direct current bus bar (10) through the n-th group of energy storage battery string connection electric control switch (kn), are connected with the direct current connection terminal of the bidirectional inverter module (6) through the direct current bus bar (10), are connected with the multi-winding transformer (7) through the alternating current connection terminal of the bidirectional inverter module (6), and are connected with the 50Hz/10KV or 50Hz/6KV power line electric control switch (k 4) through the multi-winding transformer (7) to form a 50Hz/10KV or 50Hz/6KV power electric energy exchange power path of the n-th group of energy storage battery string modules (sn);
the main control system module (1) is respectively connected with the current source controller (2), the voltage source controller (3), the 60Hz frequency controller (4), the 50Hz frequency controller (5) and the bidirectional inverter module (6) through the system bus (8) to form a bidirectional inversion frequency and operation regulation control link;
the main control system module (1) is connected with the monitoring communication link (11) through the communication circuit module (9), and the monitoring communication link (11) is respectively connected with an m-th group energy storage battery management system BMS module (bm), an n-th group energy storage battery management system BMS module (bn), a 60Hz/0.45KV power line electric control switch (k 1), a 50Hz/0.4KV power line electric control switch (k 2), a 60Hz/6.6KV power line electric control switch (k 3), a 50Hz/10KV or a 50Hz/6KV power line electric control switch (k 4), an m-th group energy storage battery series connection electric control switch (km), an n-th group energy storage battery series connection electric control switch (kn), a 60Hz/0.45KV power monitoring sensor (T1), a 50Hz/0.4KV power monitoring sensor (T2), a 60Hz/6.6KV power monitoring sensor (T3), a 50Hz/10KV or a 50Hz/6KV power monitoring sensor (T4) to form a ship shore power system real-time monitoring and control link;
the main control system module (1) is connected with the monitoring communication link (11) through the communication circuit module (9), and the monitoring communication link (11) is connected with the manual control panel (13) to form a communication link for manual control of the ship shore power system;
the main control system module (1) is connected with the communication circuit module (9), and the communication circuit module (9) is connected with the data center and the mobile terminal (15) through the remote communication network (14) to form a communication link for information interaction between the data center and the mobile terminal (15) and the shore power system of the ship;
the power supply circuit module (12) is connected with the main control system module (1) to form a system power supply power path;
the system comprises an mth group of energy storage battery pack management system BMS module (bm) and a main control system module (1), wherein the mth group of energy storage battery pack management system BMS module (bm) is connected with the mth group of energy storage battery pack string module (sm) and is connected with the main control system module (1) through a monitoring communication link (11) and a communication circuit module (9) in sequence, so that a control link for information interaction between the mth group of energy storage battery pack management system BMS module (bm) and the main control system module (1) and monitoring and balancing of the energy storage batteries is formed;
the n-th group of energy storage battery pack management system BMS module (bn) is connected with the n-th group of energy storage battery pack string module (sn) and is connected with the main control system module (1) through the monitoring communication link (11) and the communication circuit module (9) in sequence, so that a control link for information interaction between the n-th group of energy storage battery pack management system BMS module (bn) and the main control system module (1) and monitoring and balancing of the energy storage batteries is formed;
a control method of a multifunctional energy storage mobile ship shore power system is applied to the multifunctional energy storage mobile ship shore power system, and comprises the following steps:
1) The system is powered on for self-checking, alarming and entering an exception handling flow when in exception;
2) The data center and the mobile terminal (15) are communicated in normal time, and parameters and operation modes are set and selected by the manual work, the data center and the mobile terminal (15);
3) If the setting and selecting parameters and the running mode are not in accordance with the requirements, the system prompts to reset and select; otherwise, enter the selected mode of operation, namely:
energy storage battery charging mode: the main control system module (1) controls C3 or C4 to be closed, detects and analyzes whether monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system are normal or not, and alarms and enters an abnormal processing flow when abnormal; the method comprises the steps that a corresponding 60Hz frequency controller (4) or 50Hz frequency controller (5) is selected according to a C3 or C4 closed state in normal time, a main control system module (1) calls a current source controller (2) to control a bidirectional inverter module (6) to charge an energy storage battery according to a set corresponding charging strategy, an m-th energy storage battery management system BMS module (bm) and an n-th energy storage battery management system BMS module (bn) monitor the charge state of the battery in real time, and when a full-charge set mark is not reached, the m-th energy storage battery management system BMS module (bm) and the n-th energy storage battery management system BMS module (bn) monitor the charge state of the battery in real time and charge the battery in a repeated mode until the full-charge is completed; the main control system module (1) calculates and analyzes the monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system, generates a charge and discharge plan and sends prompt information;
and (3) an energy storage battery discharging mode: the main control system module (1) controls the C1 or C2 to be closed, detects and analyzes whether the monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system are normal, alarms when abnormal and enters an abnormal processing flow; the method comprises the steps that a corresponding 60Hz frequency controller (4) or 50Hz frequency controller (5) is selected according to the closed state of C1 or C2 in normal time, a main control system module (1) calls a voltage source controller (3) to control a bidirectional inverter module (6) to control an energy storage battery to serve as a power supply according to a set corresponding discharging strategy, an mth group of energy storage battery management system BMS module (bm) and an n group of energy storage battery management system BMS module (bn) monitor the charge state of the battery in real time, and when a set sign of electric quantity discharging is not achieved, the mth group of energy storage battery management system BMS module (bm) and the n group of energy storage battery management system BMS module (bn) continuously monitor the charge state of the battery in real time and keep discharging and supplying power until a set sign of electric quantity discharging is achieved, and discharging is stopped; the main control system module (1) calculates and analyzes the monitoring data of the BMS module (bm) of the m-th group of energy storage battery pack management system and the BMS module (bn) of the n-th group of energy storage battery pack management system, generates a charge and discharge plan and sends prompt information;
4) Returning to the step 2), waiting for entering the next charge and discharge task flow.
2. The control method of a multifunctional energy-storage mobile ship shore power system according to claim 1, wherein the 60Hz/0.45KV power line electric control switch (k 1), the 50Hz/0.4KV power line electric control switch (k 2), the 60Hz/6.6KV power line electric control switch (k 3), the 50Hz/10KV or the 50Hz/6KV power line electric control switch (k 4) is characterized in that a normally open state switch is adopted and the 60Hz/0.45KV power line electric control switch (k 1) and the 50Hz/0.4KV power line electric control switch (k 2) are single-closed and interlocked, namely only one switch is closed at the same time; and the 60Hz/6.6KV power line electric control switch (k 3) and the 5011z/10KV or 50Hz/6KV power line electric control switch (k 4) are in single-closing interlocking, namely only one switch is closed at the same time.
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