Abstract: A fault protection system for a power system of a dynamically positioned vessel is provided. The power system is separated into two or more power system sections, each including a bus section of a power distribution bus. The bus sections are connected by bus ties in a ring configuration. Each bus section includes a connection to a generator and a connection to a thruster drive of the dynamically positioned vessel. The fault protection system includes a fault isolation system which includes for each power system section a bus tie circuit breaker for breaking the connection provided by the bus tie.

Abstract: A power supply system for an electrical drive of a marine vessel is provided. The electrical drive includes an electric motor that is adapted to receive electric energy from a power source. The electrical drive has a first operating state in which electric energy is supplied by the power source to the electrical drive to operate the electrical drive and a second operating state in which the electric motor of the electrical drive is decelerated or braked, wherein the electrical drive generates electric energy in the second operating state. The power supply system comprises an electric energy storage device for storing generated electric energy.

Abstract: A fault protection system of a power system of a dynamically positioned vessel is provided. The power system has a power distribution bus having three or more bus subsections, electric connections including bus ties which connect the bus subsections in a ring configuration, and circuit breakers connected between the bus subsections. The fault protection system includes a generator circuit breaker for coupling a generator to a bus subsection, feeder circuit breaker(s) for coupling load(s) to the bus subsection, a first circuit breaker for connecting one end of the bus subsection to a bus tie that provides an electric connection to another bus subsection, the first circuit breaker being a bus tie breaker, a second circuit breaker for coupling another end of the bus subsection to a further bus subsection, protection relays for operating the circuit breakers, and communication links between protection relays that exchange information via said communication links.

Abstract: A blackout ride-through system adapted to bridge a gap in the supply of electrical energy to an electric drive of a marine vessel caused by a blackout of a main power supply is provided. The main power supply includes a generator and is configured to provide electrical energy for operating the electric drive of the marine vessel. The blackout ride-through system includes a battery coupled to the main power supply and to the electric drive of the marine vessel and configured to store electrical energy for operating the electric drive in case of a blackout of the main power supply.

Abstract: A power supply system for an electrical drive of a marine vessel is provided. The electrical drive includes an electric motor that is adapted to receive electric energy from a power source. The electrical drive has a first operating state in which electric energy is supplied by the power source to the electrical drive to operate the electrical drive and a second operating state in which the electric motor of the electrical drive is decelerated or braked, wherein the electrical drive generates electric energy in the second operating state. The power supply system comprises an electric energy storage device for storing generated electric energy.

Abstract: A fault protection system for a power system of a dynamically positioned vessel is provided. The power system is separated into two or more power system sections, each including a bus section of a power distribution bus. The bus sections are connected by bus ties in a ring configuration. Each bus section includes a connection to a generator and a connection to a thruster drive of the dynamically positioned vessel. The fault protection system includes a fault isolation system which includes for each power system section a bus tie circuit breaker for breaking the connection provided by the bus tie.

Abstract: A fault protection system of a power system of a dynamically positioned vessel is provided. The power system has a power distribution bus having three or more bus subsections, electric connections including bus ties which connect the bus subsections in a ring configuration, and circuit breakers connected between the bus subsections. The fault protection system includes a generator circuit breaker for coupling a generator to a bus subsection, feeder circuit breaker(s) for coupling load(s) to the bus subsection, a first circuit breaker for connecting one end of the bus subsection to a bus tie that provides an electric connection to another bus subsection, the first circuit breaker being a bus tie breaker, a second circuit breaker for coupling another end of the bus subsection to a further bus subsection, protection relays for operating the circuit breakers, and communication links between protection relays that exchange information via said communication links.