The invention discloses a ship direct-current networking power system, which comprises two propulsion units of a larboard propulsion unit and a starboard propulsion unit, wherein the propulsion unit comprises a direct-current bus, at least two generator power supply mechanisms and a ship propulsion mechanism are connected to the direct-current bus, a load mechanism is arranged on the direct-current bus of the larboard or the starboard, and a power electronic switch is arranged between the direct-current bus of the larboard and the direct-current bus of the starboard. According to the invention, the ship electric power system is provided with the facility used for isolating a certain part of load when the certain part of load is short-circuited, and when a short circuit occurs at a certainposition, the electric power system can immediately isolate a short circuit source through the short circuit support, so that paralysis of the whole ship electric power system due to the short circuitat the certain position is avoided, and the safety and redundancy of the system are improved. The invention further discloses an operation and power optimization control method of the ship direct-current networking power system, wherein the precision of power distribution of the generator set is improved, and it is guaranteed that the generator set operates in the most economical fuel state.

    本发明公开了一种船舶直流组网电力系统,包括左舷以及右舷两个推进单元,推进单元包含直流母线,直流母线上连接有至少两个发电机供电机构、船舶推进机构,左舷或者右舷的直流母线上设有负载机构,左舷与右舷的直流母线间设有电力电子开关。本船舶电力系统中设有用于在某部分负载短路时将其进行隔离的设施,在某处发生短路时,电力系统通过短路支撑可以立刻隔绝短路源,避免因为某处短路导致整个船舶电力系统的瘫痪,提高了系统的安全性以及冗余性。本发明还公开了船舶直流组网电力系统的运行和功率优化控制方法,该方法提高了分配发电机组功率的精确性,保证发电机组运行在最经济燃油状态。


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    Title :

    Ship direct-current networking power system and operation and power optimization control method thereof


    Additional title:

    船舶直流组网电力系统及其运行和功率优化控制方法


    Contributors:
    WU YUNXIANG (author) / SHAO SHIYI (author) / CHANG GUOMEI (author) / WU ZHIJIANG (author) / LIU YANG (author) / WANG XIAOMEI (author) / TANG WENXIAN (author) / CHEN YUN (author) / SU SHIJIE (author) / GUO SHENG (author)

    Publication date :

    2020-07-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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