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The present invention relates to an electrical energy regulator system for a power supply bus, the system including: an electrical energy storage unit, a solar generator having a plurality of cells, a system for regulating the bus power supply voltage adapted to impose on each cell one of the

The present invention relates to an electrical energy regulator system for a power supply bus, the system including: an electrical energy storage unit, a solar generator having a plurality of cells, a system for regulating the bus power supply voltage adapted to impose on each cell one of the following three states: a first state in which the bus is supplied with current,a second state in which the storage unit (BAT) is supplied with current, anda third state in which the cell is shunted, the cells being divided by the bus voltage regulator system into: a first group in which at least one cell supplies power to the bus and one cell is assigned to regulation of the voltage of the bus and is in its first state only when maintaining a nominal bus voltage requires a top-up of current, and a second group in which at least one cell is either in a second state or in a third state, as a function of a required charging current of the storage unit, the number of cells in the second state being a function of the required charging current. The system further includes a system means for regulating the charging of the storage unit which assign at least one cell of the second group to supplying power to the storage unit (BAT) and one cell of the second group to regulating the voltage of the storage unit, the storage unit charging voltage regulator cell being in its second state only when maintaining a nominal charging voltage requires a top-up of current.

대표청구항 ▼

1. An electrical energy regulator system for a power supply bus connected to a load network using an electrical energy, said system including: an electrical energy storage unit, a solar generator comprising a plurality of cells, for each of said cells, means for regulating the power supply v

1. An electrical energy regulator system for a power supply bus connected to a load network using an electrical energy, said system including: an electrical energy storage unit, a solar generator comprising a plurality of cells, for each of said cells, means for regulating the power supply voltage of said bus adapted to impose on said cell one of the following three operating states: a first state in which current from said cell supplies power to said bus,a second state in which current from said cell supplies power to said storage unit, anda third state in which said cell is shunted,said cells being divided by said bus voltage regulator means into: a first group in which at least one of said cells supplies power to said bus and one of said cells referred to as a bus voltage regulator cell is assigned to regulation of the voltage of said bus and to this end is in its first state only when maintaining a nominal bus voltage requires a top-up of current from said cell, and a second group in which at least one of said cells is either in a second state or in a third state, as a function of a required charging current of said storage unit, the number of cells in the second state being a function of the required charging current, wherein said system further includes means for regulating the charging of said storage unit which assign at least one of said cells of said second group to supplying power to said storage unit and one of said cells, referred to as a storage unit charging regulator cell, to regulation of the voltage of said storage unit, to which end said storage unit charging voltage regulator cell is in its second state only when maintaining a nominal charging voltage of the storage unit requires a top-up of current from said cell. 2. A system according to claim 1, wherein said bus voltage regulator means and said storage unit charging regulator means are independent of each other and, if the two regulation functions converge toward assigning a single cell to regulation of the voltage of said bus and to regulation of the charging of said storage unit, priority is given to bus voltage regulation.3. A system according to claim 1, wherein said bus voltage regulator means compare, in each cell, an average error in the nominal voltage of said bus and a reference value for said average error, said reference value being constant in each cell and increasing from one cell to the next, and the lowest value being that of said bus voltage regulator cell.4. A system according to claim 3, wherein regulation of the bus voltage starts with cells having the highest reference value of said average error in the nominal voltage of said bus.5. A system according to claim 1, wherein said means for regulating charging of the storage unit compare, in each cell, an average error in the nominal charging voltage of said storage unit and a reference value for said average error, said reference value being constant within each cell and increasing from one cell to the next, and the highest value being that of said storage unit charging regulator cell.6. A system according to claim 5, wherein regulation of the charging of the storage unit begins with cells having the lowest reference value for said average error in the nominal charging voltage of said storage unit.7. A system according to claim 1, wherein said bus voltage regulator means include a respective shunt switch in each of said cells connected in parallel with said cell.8. A system according to claim 1, wherein said storage unit charging regulator means include a series switch in each cell for coupling said storage unit to said bus.