7 Terminology (1 February 2022)
Battery Management System. An electronic system possessing a battery module/pack that can cut power in
case of overcharge, overcurrent, over-discharge, and overheating. It monitors and/or manages its state,
calculates secondary data, reports that data, and/or controls its environment to influence the battery’s
safety, performance, and/or service life. [IEC 62619]
Battery Cell. The basic functional electrochemical unit containing an assembly of electrodes, electrolyte,
and terminals that is a source of electrical energy by insertion/extraction reactions of lithium ions or an
oxidation/reduction reaction of lithium between the negative electrode and the positive electrode.
Battery Module. A group of battery cells connected together in a series and/or parallel configuration with
or without protective devices and monitoring circuitry. [IEC 62620]
Battery Pack. An energy storage device comprised of one or more cells or modules that are electrically
connected. It has a monitoring circuitry that provides information to a battery system. [IEC 62620]
Battery System (Array). System comprised of one or more cells, modules, or battery packs. It has a battery
management system to cut power in case of overcharge, overcurrent, over-discharge, and overheating.
Battery Space (Compartment). The space in which the battery system is physically located.
Blocking Diode. Diode connected in series with module(s), panel(s), sub-array(s), and array(s) to block
reverse current into such module(s), panel(s), sub-array(s), and array(s).
Brake. Device capable of reducing the rotor speed or stopping rotation of a wind turbine system.
Bypass Diode. Diode connected across one or more cells in the forward current direction to allow the
module current to bypass shaded or broken cells to prevent hot spot or hot cell damage resulting from the
reverse voltage biasing from the other cells in that module.
Conventional generation. Internal combustion engine-generator sets, and /or shaft generators (for the
purpose of the use of this document).
Converter. A device that receives electrical energy with a set of input parameters and exports electrical
energy with a different set of parameters.
Energy Management System (EMS). A computerized control system designed to regulate the energy
consumption of a vessel by controlling and monitoring the operation of energy storage systems, electrical
loads and the production of power. The system can monitor environmental and system loads and adjust
operations in order to optimize energy usage, and respond to demand conditions. For the purpose of this
document the EMS can also have similar functionalities as a PMS.
Energy Storage System (ESS). A system composed of an energy storage transformation device, a converter
(if necessary), controls, and ancillary components and equipment. It is capable of delivering/capturing
electrical energy to/from a load at the required voltage and rate (power), and can accommodate the load
rate of change of power.
Energy Transformation Device (ETD). A device that converts energy from one form to another. The source
energy may be renewable or stored. The transformation may be unidirectional or bidirectional. A fuel cell
is a type of ETD.
Flexible Photovoltaic Module. Photovoltaic module that is designed to be intentionally and repetitively
twisted, curved or otherwise bent without physical, electrical or visual damage.
Fuel Cell. (FC). A Fuel Cell is a source of electrical power in which the chemical energy of a fuel is
converted directly into electrical and thermal energy by electrochemical oxidation.
Section 1 General 1
ABS REQUIREMENTS FOR HYBRID ELECTRIC POWER SYSTEMS FOR MARINE AND OFFSHORE
APPLICATIONS • 2022
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