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Hybrid power ship energy efficiency control system and method

A technology of hybrid power and control system, applied in the direction of ship propulsion, engine using propulsion device combination, ship parts, etc.

Pending Publication Date: 2020-11-10
锡瑞迪船用动力系统(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The object of the present invention is to provide a hybrid power ship energy efficiency control system and method, thereby solving the aforementioned problems existing in the prior art

Method used

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  • Hybrid power ship energy efficiency control system and method
  • Hybrid power ship energy efficiency control system and method
  • Hybrid power ship energy efficiency control system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] like figure 1 As shown, in this embodiment, an energy efficiency control system for a hybrid ship is provided. The ship includes a left propeller and a right propeller; the control system includes a first diesel generator set, a second diesel generator set, a shore power supply, an AC bus, a storage Energy unit, DC bus, left motor, left clutch, left main engine, right motor, right clutch and right main engine; the first diesel generator set and the second diesel generator set pass through the first AC circuit breaker (ACB1) and The second AC circuit breaker (ACB2) is connected to the AC busbar; the shore power supply is connected to the AC busbar through the vacuum circuit breaker (VCB), the transformer group and the third AC circuit breaker in turn; the AC busbar is respectively passed through the fourth AC circuit breaker ( ACB4), the fifth AC circuit breaker (ACB5), the sixth AC circuit breaker (ACB6), and the seventh AC circuit breaker (ACB7) are respectively connec...

Embodiment 2

[0106] like Figure 2 to Figure 5 As shown, in this embodiment, a method for controlling energy efficiency of a hybrid ship is provided, and the control method is realized by using a control system; Ensure the best energy efficiency of hybrid ships; the working conditions of the ship include

[0107] Berthing working condition: shore power supplies power and fully charges the energy storage unit; (at this time, the first AC circuit breaker and the second AC circuit breaker are disconnected, and the tenth AC circuit breaker and the eleventh AC circuit breaker are disconnected , the remaining circuit breakers are all closed);

[0108] Mooring working condition: the energy storage unit supplies power. When the anchoring time is too long, causing the energy storage unit to discharge to 30% of its rated capacity, the second diesel generator set is given priority to supply power and fully charges the energy storage unit; If there is a power failure, the second diesel generator set...

Embodiment 3

[0189] In this embodiment, in combination with the contents of Embodiment 1 and Embodiment 2, by adopting the control system and control method, the following control can be realized:

[0190] 1. The logic control program of the hybrid power system: including the start-stop, parallel and de-coupling control of the diesel generator set, the start-stop control of the main engine, the switching control of the shaft motor, the switching control of the shore power and the switching control of the energy storage unit; the circuit breaker VCB, ACB and Closing and opening control of DCB.

[0191] 2. Automated control program of hybrid AC / DC power station: the minimum fuel consumption rate SFOC control of the diesel engine includes the optimal SFOC control of the generator diesel engine and the optimal SFOC control of the main engine, and the minimum SFOC control corresponds to 10 hybrid power modes, shore power supply, and energy storage unit The joint and coordinated work of power su...

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Abstract

The invention provides an energy efficiency control system and method for a hybrid power ship. The control system comprises a first diesel generator set, a second diesel generator set, a shore power supply, an alternating current bus, an energy storage unit, a direct current bus, a left motor, a left clutch, a left main engine, a right motor, a right clutch and a right main engine. The first diesel generating set and the second diesel generating set are connected with a shore power supply alternating-current bus; the alternating-current bus is connected to the direct-current bus; the energy storage unit is sequentially connected with the direct-current bus; the direct-current bus is connected with the left motor and the right motor; the left motor is connected with the left propeller and the left host; the right motor is connected with the right propeller and the right host. The unmanned aerial vehicle has the advantages that the propellers can be independently driven by a main engine,a motor or diesel-electric drive combining the main engine and the motor; the motor can work in a propelling state or a power generation state, and the reliability is high; the hybrid power ship energy efficiency optimal grey prediction control method is provided, and the problem that a diesel engine operates with the lowest oil consumption SFOC is fundamentally solved.

Description

technical field [0001] The invention relates to the technical fields of energy saving, emission reduction and hybrid power for ships, ocean engineering engineering ships, tugboats, etc., and in particular to an energy efficiency control system and method for a hybrid power ship. Background technique [0002] At present, fuel oil is still the dominant energy source for ships, and fuel saving is the fundamental task of ships. Diesel engine manufacturers have developed a complete fuel-saving technology around in-cylinder combustion. The minimum fuel consumption factor (SFOC) of marine medium-speed engines is (191±5%) g / (kw〃h), which corresponds to the optimal load of medium-speed engines is 100%; the minimum fuel consumption rate (SFOC) of the low-speed engine is (162-165) g / (kw〃h), and the corresponding optimal load of the low-speed engine is (75-80)%; It is difficult to achieve the lowest fuel consumption rate. Changes in ship conditions and sea conditions make it impossible...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/20
CPCB63H21/20B63H2021/202
Inventor 张桂臣曹玉琢钟作寿
Owner 锡瑞迪船用动力系统(上海)有限公司
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