The invention discloses an AFE frequency conversion permanent magnet propulsion system of a lamplight cover net fishing boat. The AFE frequency conversion permanent magnet propulsion system comprises two 600kW diesel generating sets, a 400kW diesel generating set, a 400V distribution board, two 550kW AFE frequency converters and a double-armature permanent magnet synchronous motor. Electric energy passes through a main contactor at the output end of each generator set and then is connected to a power distribution board to form a 400V and 50Hz alternating current micro-grid; then the two AFE frequency converters jointly drive the double-armature permanent magnet synchronous motor to rotate, thrust is generated through the reduction gearbox and the propeller, and the ship is pushed to advance; auxiliary equipment, daily loads and the like are supplied with power from the main distribution board to the auxiliary distribution board to be used by the auxiliary equipment; the distribution board comprises a PMS power management system, the number of hosts in the network can be adjusted in real time according to the whole ship load use condition, and the effects of energy conservation and emission reduction are achieved. Compared with a traditional system, the power density is improved by 20%; the current harmonic THDi of the power grid is less than 3%; and the noise is reduced by 15-20 decibels.
本发明公开了一种灯光罩网渔船AFE变频永磁推进系统,包括2台600kW、1台400kW柴油发电机组、400V配电板、两台550kW AFE变频器以及一台双电枢永磁同步电机;电能经各发电机组输出端主接触器后在配电板进行并网,形成交流400V、50Hz微电网;然后由两台AFE变频器共同驱动双电枢永磁同步电机旋转,经减速齿轮箱、螺旋桨产生推力,推动船舶前进;辅助设备、日用负荷等经主配电板取电供应到辅助配电板供辅助设备使用;配电板中包含PMS功率管理系统,可实时根据全船负荷使用情况调整在网主机台数,起到节能减排效果。本发明相对于传统系统功率密度提升20%;对电网的电流谐波THDi小于3%;噪音降低15‑20分贝。
AFE frequency conversion permanent magnet propulsion system of lamplight cover net fishing boat
一种灯光罩网渔船AFE变频永磁推进系统
2023-06-06
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
Auxiliary diesel electric propulsion of large fishing boat
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