Avoid harmonic and reactive power impulse to effect grid
Avoid harmonic to effect developing motor
Make sure to produce safely
Reduce consumption cost of unit production
Basic accessories of offshore oil drilling platform as following:
2 groups of mud pump set of motor, winch motor, rotary motor, top drive motor.
Every part of bus has 4pcs high-capacity motor which is controlled by all AC invert driver system. AC invert driver system will produce lots of higher harmonic, 6 pulse wave AC invert driver system will produce 5,7,11, 13times harmonic.
As the high power factor of inverter, usually is above 0.9, also it produces large harmonic, current harmonic distortion THDI is above 30%, at the same time of controlling harmonic, the system should not be over compensation.
Basic accessories of offshore oil drilling platform as following:
2 groups of mud pump set of motor, winch motor, rotary motor, top drive motor.
Every part of bus has 4pcs high-capacity motor which is controlled by all AC invert driver system. AC invert driver system will produce lots of higher harmonic, 6 pulse wave AC invert driver system will produce 5,7,11, 13times harmonic.
As the high power factor of inverter, usually is above 0.9, also it produces large harmonic, current harmonic distortion THDI is above 30%, at the same time of controlling harmonic, the system should not be over compensation.
Basic accessories of offshore oil drilling platform as following:
2 groups of mud pump set of motor, winch motor, rotary motor, top drive motor.
Every part of bus has 4pcs high-capacity motor which is controlled by all AC invert driver system. AC invert driver system will produce lots of higher harmonic, 6 pulse wave AC invert driver system will produce 5,7,11, 13times harmonic.
As the high power factor of inverter, usually is above 0.9, also it produces large harmonic, current harmonic distortion THDI is above 30%, at the same time of controlling harmonic, the system should not be over compensation.
Suggestion is to use passive filter and active filter to centralized harmonic control and reactive power compensation:
Install large-capacity active filter on each bus to control harmonic, not only can avoid the overcompensation, resonance and overload, also can eliminate harmonic and improve power quality.
Instruction: Lifting system will produce dynamic reactive power impact, this will set part capacity of active filter as dynamic compensation reactive power, thus improving power quality.