Ship-shore-port whole-process collaborative operation method for port comprehensive energy system

Abstract

The invention discloses a ship-shore-port whole process collaborative operation method for a port integrated energy system. The method comprises the following steps: 1) establishing a target function of a ship-shore-port whole process collaborative operation model of the port integrated energy system; 2) establishing all-electric container ship operation constraint conditions of a ship area of the port integrated energy system ship-shore-port whole process collaborative operation model; 3) establishing operation constraint conditions of an electrically-driven quay crane in a coast area of the ship-shore-port whole-process collaborative operation model of the port integrated energy system; 4) establishing constraint conditions of automatic navigation vehicle operation, electric drive field bridge operation and electric hydrogen thermal power balance in a port area of the ship-shore-port whole process collaborative operation model of the port integrated energy system; and 5) solving the port integrated energy system ship-shore-port whole process collaborative operation model to obtain a port integrated energy system operation scheme.

Description

Technical Field

[0001] The present invention belongs to the technical field of integrated energy, and in particular relates to a coordinated operation method of a port integrated energy system. Background Art

[0002] With the rapid growth of global trade volume and the in-depth promotion of the "dual carbon" strategy, ports, as core nodes of the international logistics chain, are experiencing a deep transformation in their energy systems from traditional fossil energy-driven to multi-energy complementary, green and efficient. In recent years, the popularization of electrified equipment represented by all-electric container ships, electric-driven quay cranes, electric-driven yard cranes, and automatic guided vehicles has accelerated. Combined with the integrated application of technologies such as hydrogen energy preparation, energy storage systems, and potential energy recovery, ports have gradually formed a comprehensive energy system architecture with "electricity-hydrogen-heat" multi-energy coupling. However, existing research mostly focuses on a single area or a single energy form, and it is difficult to solve the global optimization problem of ship-shore-port multi-energy flow coordination. In this context, there is an urgent need for a collaborative operation method that covers the entire "ship-shore-port" process and connects multiple energy forms to achieve safe, economical and low-carbon operation of the port's comprehensive energy system under complex working conditions.

[0003] The port's integrated energy system is primarily divided into three areas: ships, coasts, and ports. Focusing on the full lifecycle of ships, it establishes a logistics scheduling system encompassing berth allocation, quay crane loading and unloading, horizontal truck transport, and yard crane storage operations. At the logistics operations level, each link forms a cascade scheduling network of "berth-quay crane-truck-yard crane." Berth allocation and quay crane scheduling form the spatial coupling of the port's vertical operating surface, while quay crane-truck-yard crane operations form the spatiotemporal linkage between horizontal transport and vertical loading and unloading.

[0004] In the ship area, all-electric container ships are connected to shore power and equipped with onboard energy storage systems. In coastal areas, electric quay cranes are used to recover potential energy. In the port area, automated guided vehicle battery replacement and electric gantry cranes are used to recover potential energy. This, combined with distributed power generation and energy storage device charging and discharging strategies, creates a multi-dimensional energy flow coupling between electricity, hydrogen, and heat. By synergizing the entire ship-shore-port process, the flexibility of each area is maximized, improving the energy efficiency of the energy system while ensuring the operational efficiency of electrified logistics, becoming a key driver of electrified ports. Summary of the Invention

[0005] Technical solution: In order to solve the technical problems mentioned in the above background technology, the present invention proposes a method for coordinated operation of the entire ship-shore-port process of a port integrated energy system, which includes the following steps:

[0006] (1) Establish the objective function of the ship-shore-port collaborative operation model of the port integrated energy system;

[0007] (2) Establish the operating constraints of all-electric container ships in the ship area of ​​the ship-shore-port collaborative operation model of the port integrated energy system;

[0008] (3) Establish the operating constraints of electric-driven quay cranes in the coastal area of ​​the ship-shore-port coordinated operation model of the port integrated energy system;

[0009] (4) Establish the constraints of automatic navigation vehicle operation, electric drive field crane operation, and electric hydrogen heat power balance in the port area of ​​the ship-shore-port collaborative operation model of the port integrated energy system;

[0010] (5) Solve the ship-shore-port collaborative operation model of the port integrated energy system and obtain the operation plan of the port integrated energy system.

[0011] Furthermore, in step (1), the objective function of the ship-shore-port whole-process collaborative operation model of the port integrated energy system is established, which is expressed as follows:

[0012]

[0013] Where a is an all-electric container ship; t is the dispatching time; o is the port shore power; e is the electric energy storage; v is the automatic navigation vehicle; q is the electric drive quay crane; y is the electric drive yard crane; h is the hydrogen energy storage; c is the cogeneration unit; g is the gas boiler; Π AECS Assemble for all-electric container ships; T is the scheduling time set; OPS For port shore power collection; EES is the electric energy storage collection; AGV is the set of automatic navigation vehicles; EQC For electric drive quay crane assembly; EYC is the electric drive field bridge set; Π HES is the hydrogen energy storage assembly; CHP is the set of cogeneration units; GB Assemble for gas boilers; is the secondary power generation cost coefficient of the ship's auxiliary engine of the all-electric container ship a; is the primary power generation cost coefficient of the ship's auxiliary engine of the all-electric container ship a; is the auxiliary engine startup cost coefficient of the all-electric container ship a; is the power generation power of the all-electric container ship a at time t; is the auxiliary engine startup state variable of the all-electric container ship a at time t, which is 1 when it is started and 0 otherwise; is the life cycle cost of the all-electric container ship a; are the charging power and discharging power of the all-electric container ship a at time t respectively; Service fees for all-electric container ship a to berth at the port; is the time when the all-electric container ship a leaves the port; is the arrival time of the all-electric container ship a at the port; is the port shore power service fee at time t; is the port shore power generation power at time t; is the life cycle cost of electric energy storage e; are the charging power and discharging power of the energy storage e at time t respectively; is the energy consumption of the automatic guided vehicle v in one cargo transportation cycle; The energy storage efficiency of the automatic guided vehicle v at time t; The working state of the electric energy storage e in the automatic navigation vehicle v at time t is 1 if it is switched in, otherwise it is 0; is the working efficiency of the automatic guided vehicle v at time t; The working state of the energy storage e in the automatic navigation vehicle v at time t is 1 if it is working, and 0 otherwise; is the life cycle cost of the electric quay crane q; are the charging power and discharging power of the electric drive quay crane q at time t respectively; is the life cycle cost of the electric drive field bridge y; are the charging power and discharging power of the electric drive field bridge y at time t respectively; is the electricity price of the upper power grid at time t; is the power generation power of the upper grid at time t; is the life cycle cost of hydrogen energy storage h; The hydrogen storage power and hydrogen release power of hydrogen energy h at time t are respectively; is the secondary power generation cost coefficient of the cogeneration unit c; is the primary power generation cost coefficient of cogeneration unit c; is the startup cost coefficient of cogeneration unit c; is the power generation capacity of cogeneration unit c at time t; is the operating state variable of the cogeneration unit c at time t, which is 1 if it is running and 0 otherwise; is the startup cost of CHP unit c; is the startup state variable of the cogeneration unit c at time t, which is 1 if started and 0 otherwise; is the shutdown cost of CHP unit c; is the shutdown state variable of cogeneration unit c at time t, which is 1 if it is shut down and 0 otherwise; is the power generation cost coefficient of gas boiler b; is the power generated by gas boiler b at time t.

[0014] Furthermore, in step (2), the operating constraints of the all-electric container ship in the ship area of ​​the ship-shore-port whole process coordinated operation model of the port integrated energy system are established, which are expressed as follows:

[0015]

[0016]

[0017] Where, is the berthing status of the all-electric container ship a at time t, 1 if it is berthed at port o, otherwise 0; is the electric power transmitted from the all-electric container ship a to the port integrated energy system at time t; is the electric power transmitted from the port integrated energy system to the all-electric container ship a at time t; is the power load of the fully electric container ship a at time t; are the battery storage capacity of the all-electric container ship a at time t-1 and time t respectively; They are the charging efficiency and discharging efficiency of the battery a of the all-electric container ship respectively; is the number of containers on the all-electric container ship a; The upper limit of the power generation capacity of the electric-driven quay crane q; The upper limit of cargo handling efficiency of electric-driven quay crane q; The upper limit of the electric drive field bridge y power generation; is the upper limit of cargo loading and unloading efficiency of electric drive axle y; They are the lower limit of the arrival time and the upper limit of the departure time of the all-electric container ship a at the port; is the berthing time of all-electric container ship a.

[0018] Furthermore, in step (3), the operating constraints of the electric-driven quay crane in the coastal area of ​​the ship-shore-port collaborative operation model of the port integrated energy system are established, which are expressed as follows:

[0019]

[0020]

[0021] Where, is the working state variable of the electric-driven quay crane q carrying the container a of the all-electric container ship at time t, which is 1 if working and 0 otherwise; is the cargo loading and unloading efficiency of the electric-driven quay crane q at time t; The electric power required for the electric-driven quay crane q to rise during a cargo loading and unloading cycle; is the rise time of the electric-driven quay crane q in a cargo loading and unloading cycle; The electric power recovered when the electric-driven quay crane q descends during a cargo loading and unloading cycle; is the descending time of the electric-driven quay crane q in one cargo loading and unloading cycle; is the electric power transmitted from the port integrated energy system to the electric-driven quay crane q at time t; is the electric power transmitted by the electric-driven quay crane q to the port integrated energy system at time t; The upper limit of the available regenerative power of the electric-driven quay crane q during a cargo handling cycle; are the battery storage capacity of the electric drive quay crane q at time t-1 and t respectively; are the charging efficiency and discharging efficiency of the electric drive quay crane q at time t respectively; The upper limit of the number of containers that can be handled by electric quay cranes; They are the lower and upper limits of the number of containers that can be handled by the electric-driven quay crane on the all-electric container ship a.

[0022] Furthermore, the specific process of step (4) is as follows:

[0023] (401) Establish the operating constraints of the AGV in the port area:

[0024]

[0025]

[0026] Where: is the position state of the energy storage e at time t, which is 1 when it is on the charging pile and 0 otherwise; δ SO The time loss coefficient caused by the replacement of electric energy storage; The working state of the electric energy storage e in the automatic navigation vehicle v at time t is 1 if it is switched out, otherwise it is 0; They are the lower and upper limits of the charging power of the electric energy storage e respectively; They are the lower and upper limits of the discharge power of the electric energy storage e, respectively; are the storage capacity of the electric energy storage e at time t-1 and t respectively; are the charging efficiency and discharging efficiency of the energy storage e at time t respectively; are the lower and upper limits of the electric energy storage capacity e at time t respectively; M is the coefficient of the big-M linearization method; are the position states of the energy storage e at time t-1 and t, respectively, which are 1 on the automatic guided vehicle v and 0 otherwise.

[0027] (402) Establish the operating constraints of the electric drive field bridge in the port area:

[0028]

[0029] Where: is the cargo loading and unloading efficiency of the electric drive bridge y at time t; The electric power required for the electric drive field bridge y to rise in one cycle; is the rise time of the electric drive field bridge y in one cycle; The electric power recovered by the electric drive field bridge y during one cycle; is the falling time of the electric drive field bridge y in one cycle; is the electric power transmitted from the port integrated energy system to the electric drive field bridge y at time t; is the electric power transmitted by the electric drive field bridge y to the port integrated energy system at time t; is the upper limit of the available regenerative power when the electric drive field bridge y descends at time t; are the battery storage capacity of the electric drive field bridge y at time t-1 and t respectively; are the battery charging efficiency and discharging efficiency of the electric drive field bridge y respectively.

[0030] (403) Establish the power balance constraints of electricity, hydrogen and heat in the port area:

[0031]

[0032] Where r is the renewable energy unit; RES is the set of renewable energy units; f is the fuel cell; Π FC for fuel cell assembly; is the power load of the port area at time t; is the power generation power of renewable energy unit r at time t; is the power generated by the fuel cell f at time t; d is the electrolyzer; Π ED Assemble for electrolytic cells; is the hydrogen production power of electrolyzer d at time t; p is the heat pump; Π HP For heat pump collection; is the heat production power of the heat pump p at time t; is the hydrogen production efficiency of electrolyzer d; is the power generation efficiency of the fuel cell f; The hydrogen storage power and hydrogen release power of hydrogen energy h at time t are respectively; is the hydrogen load at time t; is the electricity generation cost of CHP unit c; is the life cycle cost of the combined heat and power unit c; is the heat production efficiency of the heat pump p; is the heat generated by the gas turbine g at time t; is the heat load at time t.

[0033] Furthermore, in step (5), a collaborative operation model of the entire ship-shore-port process of the port integrated energy system is written and solved in general commercial software to obtain an operation plan of the port integrated energy system.

[0034] Beneficial effects: Compared with the existing technology, the above technical solution brings the following beneficial effects:

[0035] (1) The present invention takes into account the coordinated operation of three areas: ships, coasts, and ports. Through the shore power access technology of all-electric container ships in the ship area, the two-way power interaction between the ship-borne energy storage device and the port microgrid is realized, the potential energy recovery of the electric-driven quay crane in the coastal area and the potential energy recovery of the electric-driven field crane in the port area and other energy consumption characteristics of electrified equipment are realized, forming a distributed energy feedback network of the port. The automatic navigation vehicle adopts a standardized battery replacement mode to build a mobile energy storage network, which forms an electric-hydrogen-heat multi-energy complement with the distributed power output and the energy storage device charging and discharging strategy. The present invention makes full use of the scheduling advantages of the port's integrated energy system to achieve the coordinated optimization of logistics equipment energy consumption and grid peak regulation, and the deep integration and global optimization of the port energy system and logistics operations.

[0036] (2) The present invention takes into account the onboard energy storage system of the all-electric container ship in the ship area of ​​the port integrated energy system, the potential energy recovery of the electric-driven quay crane in the coastal area, the battery replacement mode of the automatic navigation vehicle in the port area, and the potential energy recovery of the electric-driven field crane. At the same time, through the electrolyzer, heat pump and cogeneration unit equipment, the coordinated operation of the entire ship-shore-port process of the port integrated energy system is realized, thereby improving the comprehensive energy efficiency and operation flexibility of the port integrated energy system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] like Figure 1 As shown, the present invention proposes a method for coordinated operation of the entire ship-shore-port process of a port integrated energy system, comprising the following steps:

[0040] Step 1: Establish the objective function of the ship-shore-port collaborative operation model of the port integrated energy system;

[0041] Step 2: Establish the operating constraints of all-electric container ships in the ship area of ​​the ship-shore-port collaborative operation model of the port integrated energy system;

[0042] Step 3: Establish the operating constraints of the electric-driven quay crane in the coastal area of ​​the ship-shore-port collaborative operation model of the port integrated energy system;

[0043] Step 4: Establish the constraints for the operation of automated guided vehicles, electric drive field cranes, and electric-hydrogen thermal power balance in the port area of ​​the ship-shore-port collaborative operation model of the port integrated energy system;

[0044] Step 5: Solve the ship-shore-port collaborative operation model of the port integrated energy system and obtain the operation plan of the port integrated energy system.

[0045] This example uses a port integrated energy system as an example. Consider a ship berthing schedule for a particular day, with a 24-hour scheduling period. The example is tested using GAMS optimization software, using the CPLEX solver to solve the constructed mixed-integer linear programming problem.

[0046] In order to illustrate the advantages of the ship-shore-port whole-process coordinated operation method of the port integrated energy system proposed in this invention, the impact of different port integrated energy system operation methods on the total cost is explored;

[0047] Option 1: The coordinated operation of the entire ship-shore-port process of the port's integrated energy system is not considered. The generators of the all-electric container ships in the ship area are not output, and the energy storage is only allowed to be charged but not discharged. Energy recovery is not considered for the quay cranes in the coastal area and the yard cranes in the port area. The automatic navigation vehicle operates in battery charging mode.

[0048] Option 2: Consider the coordinated operation of the entire ship-shore-port process of the port's integrated energy system.

[0049] The comparison results of the two schemes are shown in Table 1. In Scheme 1, since the coordinated operation of the entire process of ship-shore-port is not taken into account, the coupling between the logistics system and the energy system is weak, and the all-electric container ships and electric-driven quay cranes have no energy storage configuration, resulting in only the transmission of electricity from the port to the ship and the quay crane. At the same time, it also reduces the coordinated operation capability of the port's integrated energy system, thereby increasing the port's operating costs. In Scheme 2, since the coordinated operation of the entire process of ship-shore-port is taken into account, the all-electric container ships, electric-driven quay cranes and automatic navigation vehicles all have energy storage configurations. On the basis of meeting the energy consumption of logistics equipment, the load demand of ship-shore-port is met through the transmission of electricity between ship-shore-port, and the optimal utilization of port energy is achieved. Therefore, compared with Scheme 1, the departure time and total operating cost of the all-electric container ships in Scheme 2 are reduced. This reflects the effectiveness of the method for the coordinated operation of the entire process of ship-shore-port in the port integrated energy system of the present invention, that is, through the coordinated operation of the entire process of ship-shore-port, the operation plan of the port integrated energy system is obtained, thereby achieving energy efficiency improvement and flexibility enhancement of the port integrated energy system.

[0050] Table 1 Comparison of scheme results

[0051]

[0052] The embodiments are only for illustrating the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for coordinated operation of the entire ship-shore-port process of a port integrated energy system, characterized in that: The method comprises the following steps: (1) Establish the objective function of the ship-shore-port collaborative operation model of the port integrated energy system; (2) Establish the operating constraints of all-electric container ships in the ship area of ​​the ship-shore-port collaborative operation model of the port integrated energy system; (3) Establish the operating constraints of electric-driven quay cranes in the coastal area of ​​the ship-shore-port coordinated operation model of the port integrated energy system; (4) Establish the constraints of automatic navigation vehicle operation, electric drive field crane operation, and electric hydrogen heat power balance in the port area of ​​the ship-shore-port collaborative operation model of the port integrated energy system; (5) Solve the ship-shore-port collaborative operation model of the port integrated energy system and obtain the operation plan of the port integrated energy system.

2. A method for coordinated operation of the entire ship-shore-port process of a port integrated energy system according to claim 1, characterized in that: In step (1), the objective function of the ship-shore-port whole-process collaborative operation model of the port integrated energy system is established, which is expressed as follows: Where a is an all-electric container ship; t is the dispatching time; o is the port shore power; e is the electric energy storage; v is the automatic navigation vehicle; q is the electric drive quay crane; y is the electric drive yard crane; h is the hydrogen energy storage; c is the cogeneration unit; g is the gas boiler; Π AECS Assemble for all-electric container ships; T is the scheduling time set; OPS For port shore power collection; EES is the electric energy storage collection; AGV is the set of automatic navigation vehicles; EQC For electric drive quay crane assembly; EYC is the electric drive field bridge set; Π HES is the hydrogen energy storage assembly; CHP is the set of cogeneration units; GB Assemble for gas boilers; is the secondary power generation cost coefficient of the ship's auxiliary engine of the all-electric container ship a; is the primary power generation cost coefficient of the ship's auxiliary engine of the all-electric container ship a; is the auxiliary engine startup cost coefficient of the all-electric container ship a; is the power generation power of the all-electric container ship a at time t; is the auxiliary engine startup state variable of the all-electric container ship a at time t, which is 1 when it is started and 0 otherwise; is the life cycle cost of the all-electric container ship a; are the charging power and discharging power of the all-electric container ship a at time t respectively; Service fees for all-electric container ship a to berth at the port; is the time when the all-electric container ship a leaves the port; is the arrival time of the all-electric container ship a at the port; is the port shore power service fee at time t; is the port shore power generation power at time t; is the life cycle cost of electric energy storage e; are the charging power and discharging power of the energy storage e at time t respectively; is the energy consumption of the automatic guided vehicle v in one cargo transportation cycle; The energy storage efficiency of the automatic guided vehicle v at time t; The working state of the electric energy storage e in the automatic navigation vehicle v at time t is 1 if it is switched in, otherwise it is 0; is the working efficiency of the automatic guided vehicle v at time t; The working state of the energy storage e in the automatic navigation vehicle v at time t is 1 if it is working, and 0 otherwise; is the life cycle cost of the electric quay crane q; are the charging power and discharging power of the electric drive quay crane q at time t respectively; is the life cycle cost of the electric drive field bridge y; are the charging power and discharging power of the electric drive field bridge y at time t respectively; is the electricity price of the upper power grid at time t; P t UEN is the power generation power of the upper grid at time t; is the life cycle cost of hydrogen energy storage h; The hydrogen storage power and hydrogen release power of hydrogen energy h at time t are respectively; is the secondary power generation cost coefficient of the cogeneration unit c; is the primary power generation cost coefficient of cogeneration unit c; is the startup cost coefficient of cogeneration unit c; is the power generation capacity of cogeneration unit c at time t; is the operating state variable of the cogeneration unit c at time t, which is 1 if it is running and 0 otherwise; is the startup cost of CHP unit c; is the startup state variable of the cogeneration unit c at time t, which is 1 if started and 0 otherwise; is the shutdown cost of CHP unit c; is the shutdown state variable of cogeneration unit c at time t, which is 1 if it is shut down and 0 otherwise; is the power generation cost coefficient of gas boiler b; is the power generated by gas boiler b at time t.

3. The method for ship-shore-port full-process coordinated operation of a port integrated energy system according to claim 1, characterized in that: In step (2), the operating constraints of the all-electric container ship in the ship area of ​​the ship-shore-port collaborative operation model of the port integrated energy system are established, which are expressed as follows: Where, is the berthing status of the all-electric container ship a at time t, 1 if it is berthed at port o, otherwise 0; is the electric power transmitted from the all-electric container ship a to the port integrated energy system at time t; is the electric power transmitted from the port integrated energy system to the all-electric container ship a at time t; is the power load of the fully electric container ship a at time t; are the battery storage capacity of the all-electric container ship a at time t-1 and time t respectively; They are the charging efficiency and discharging efficiency of the battery a of the all-electric container ship respectively; is the number of containers on the all-electric container ship a; The upper limit of the power generation capacity of the electric-driven quay crane q; The upper limit of cargo handling efficiency of electric-driven quay crane q; The upper limit of the electric drive field bridge y power generation; is the upper limit of cargo loading and unloading efficiency of electric drive field bridge y; They are the lower limit of the arrival time and the upper limit of the departure time of the all-electric container ship a at the port; is the berthing time of all-electric container ship a.

4. The method for ship-shore-port coordinated operation of a port integrated energy system according to claim 1, characterized in that: In step (3), the operating constraints of the electric-driven quay crane in the coastal area of ​​the ship-shore-port collaborative operation model of the port integrated energy system are established, which are expressed as follows: Where, is the working state variable of the electric-driven quay crane q carrying the container a of the all-electric container ship at time t, which is 1 if working and 0 otherwise; is the cargo loading and unloading efficiency of the electric-driven quay crane q at time t; The electric power required for the electric-driven quay crane q to rise during a cargo loading and unloading cycle; is the rise time of the electric-driven quay crane q in a cargo loading and unloading cycle; The electric power recovered when the electric-driven quay crane q descends during a cargo loading and unloading cycle; is the descending time of the electric-driven quay crane q in one cargo loading and unloading cycle; is the electric power transmitted from the port integrated energy system to the electric-driven quay crane q at time t; is the electric power transmitted by the electric-driven quay crane q to the port integrated energy system at time t; The upper limit of the available regenerative power of the electric-driven quay crane q during a cargo handling cycle; are the battery storage capacity of the electric drive quay crane q at time t-1 and t respectively; are the charging efficiency and discharging efficiency of the electric drive quay crane q at time t respectively; The upper limit of the number of containers that can be handled by electric quay cranes; They are the lower and upper limits of the number of containers that can be handled by the electric-driven quay crane on the all-electric container ship a.

5. The method for ship-shore-port full-process coordinated operation of a port integrated energy system according to claim 1, characterized in that: The specific process of step (4) is as follows: (401) Establish the operating constraints of the AGV in the port area: Where: is the position state of the energy storage e at time t, which is 1 when it is on the charging pile and 0 otherwise; δ SO The time loss coefficient caused by the replacement of electric energy storage; The working state of the electric energy storage e in the automatic navigation vehicle v at time t is 1 if it is switched out, otherwise it is 0; They are the lower and upper limits of the charging power of the electric energy storage e respectively; They are the lower and upper limits of the discharge power of the electric energy storage e, respectively; are the storage capacity of the electric energy storage e at time t-1 and t respectively; are the charging efficiency and discharging efficiency of the energy storage e at time t respectively; They are the lower and upper limits of the amount of electric energy storage e at time t respectively; M is the coefficient of the big-M linearization method; are the position states of the energy storage e at time t-1 and t, which are 1 on the automatic guided vehicle v and 0 otherwise; (402) Establish the operating constraints of the electric drive field bridge in the port area: Where: is the cargo loading and unloading efficiency of the electric drive bridge y at time t; The electric power required for the electric drive field bridge y to rise in one cycle; is the rise time of the electric drive field bridge y in one cycle; The electric power recovered by the electric drive field bridge y during one cycle; is the falling time of the electric drive field bridge y in one cycle; is the electric power transmitted from the port integrated energy system to the electric drive field bridge y at time t; is the electric power transmitted by the electric drive field bridge y to the port integrated energy system at time t; is the upper limit of the available regenerative power when the electric drive field bridge y descends at time t; are the battery storage capacity of the electric drive field bridge y at time t-1 and t respectively; are the battery charging efficiency and discharging efficiency of the electric drive field bridge y respectively; (403) Establish the power balance constraints of electricity, hydrogen and heat in the port area: Where r is the renewable energy unit; RES is the set of renewable energy units; f is the fuel cell; Π FC is the fuel cell assembly; P t EL is the power load of the port area at time t; is the power generation power of renewable energy unit r at time t; is the power generated by the fuel cell f at time t; d is the electrolyzer; Π ED Assemble for electrolytic cells; is the hydrogen production power of electrolyzer d at time t; p is the heat pump; Π HP For heat pump collection; is the heat production power of the heat pump p at time t; is the hydrogen production efficiency of electrolyzer d; is the power generation efficiency of the fuel cell f; The hydrogen storage power and hydrogen release power of hydrogen energy h at time t are respectively; is the hydrogen load at time t; is the electricity generation cost of CHP unit c; is the life cycle cost of the combined heat and power unit c; is the heat production efficiency of the heat pump p; is the heat generated by the gas turbine g at time t; T t TL is the heat load at time t.

6. The method for ship-shore-port full-process coordinated operation of a port integrated energy system according to claim 1, characterized in that: In step (5), a ship-shore-port collaborative operation model of the port integrated energy system is written and solved in general commercial software to obtain an operation plan for the port integrated energy system.

Images