Operation method of power transmission and distribution system using secondary battery

A grid operation method using secondary batteries, said method comprising the steps of:

• letting a control device receive measurement data to be sent from a monitoring device operative to measure an output and an output variation of a renewable power generation apparatus including a wind power generator;
• and
• letting the control device control an output of a thermal power generation facility to thereby control the output variation of the renewable power generation apparatus while absorbing a remaining output variation by charge and discharge of a virtual secondary battery storing therein residual electricity storage quantities of those secondary batteries connected to electric power demanding devices placed in buildings, factories and large warehouses.

A grid operation method using a secondary battery for use in an electricity distribution system of a house having a renewable power generation apparatus, said system including a home-use electrical equipment in the house, a secondary battery of an individual house or a separately central-managed secondary battery system, and a control device for measuring an output variation of the renewable power generation apparatus and for controlling the output variation, said method comprising the steps of:

• absorbing to a maximum extent an output variation of a house-oriented small-scale renewable power generation apparatus occurring due to changes in time and weather and changes of seasons by preset temperature control of home-use electric equipment, which is free from a risk of losing convenience of life due to a short time change;
• and
• absorbing remaining variations by charge and discharge of the secondary battery.

A grid operation method using a secondary battery for use in a system including electric power demanding devices within demand-side structures which are larger in scale than houses, such as buildings, factories and large warehouses, a secondary battery of individual house or a separately central-managed secondary battery system, and a control device which measures an output variation of renewable power generation apparatus and controls the output variation, said method comprising the steps of:

• absorbing, to a maximum extent, an output variation of a renewable power generation apparatus installed in an electrical power transmission/distribution system occurring due to changes in time and weather and changes of seasons by preset temperature control of the power demanding devices of buildings, factories and large warehouses, the machines being free from a risk of losing convenience of life by a short time change;
• and
• absorbing a remaining variation by charge and discharge of a virtual large-size secondary battery utilizing a plurality of power storage capacities to thereby absorb variations of the large-scale renewable power generation apparatus interconnected to the power transmission/distribution system.

A grid operation method using a secondary battery for use in an electrical power transmission system having a large-scale renewable power generation apparatus capable of supplying electric power to a group of houses and a plurality of buildings, factories, large warehouses and others, said system including a thermal power generation station, a virtually central-managed secondary battery, and a control device operative to measure an output variation of a renewable power generation apparatus and control the output variation, said method comprising the steps of:

• absorbing, to a maximum extent, output variations of the renewable power generation apparatus installed in the power transmission system occurring due to changes in time and weather and changes of seasons by adjustment of an output of thermal power generation;
• and
• absorbing remaining variations by using a plurality of power storage capacities and by leveraging them as a virtual large-size battery to thereby absorb variations of the large-scale renewable power generation apparatus interconnected to the power transmission system.