Brian Cooper
Member
Hi
I have a application where I need to do active heave compensation on a ship.
The equipment used to do the control are listed below.
2 x hydraulic motors
1 x winch
1 x MRU ( To measure heave)
1 x Siemens PLC to do active heave compensation.
The system will function as follow.
The winch will pay out its load to a certain depth without heave compensation. When the depth has been reached heave compensation will be switched on to stabilise the load hanging from the winch. the load will then be lowered slowly to the seabed.
The PLC has to control the hydraulic winch by paying out and in as to keep the load still in the water while also lowering the load at the same time.
Can anybody help me with how to do the control of the heave compensation?
Regards,
I have a application where I need to do active heave compensation on a ship.
The equipment used to do the control are listed below.
2 x hydraulic motors
1 x winch
1 x MRU ( To measure heave)
1 x Siemens PLC to do active heave compensation.
The system will function as follow.
The winch will pay out its load to a certain depth without heave compensation. When the depth has been reached heave compensation will be switched on to stabilise the load hanging from the winch. the load will then be lowered slowly to the seabed.
The PLC has to control the hydraulic winch by paying out and in as to keep the load still in the water while also lowering the load at the same time.
Can anybody help me with how to do the control of the heave compensation?
Regards,