Power generating system and method of designing power generating system

Patent metadata

Field	Value
Publication number	US-9711663-B2
Application number	US-201414484304-A
Country	US
Kind code	B2
Filing date	Sep 12, 2014
Priority date	Sep 27, 2013
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A power generating system comprising: a plurality of power generating units coupled in parallel; a power collecting device for collecting electric power output from the plurality of power generating units; and wirings for coupling the plurality of power generating units and the power collecting device. A ratio of a conductor diameter to a predetermined length of each of the wirings is defined as a reference ratio. A value obtained by multiplying the reference ratio, a number of the wirings, and a loss generated by a specific wiring together is subtracted from a value obtained by multiplying a predetermined number of wirings for adjustment by a ratio of a conductor diameter to a length of the specific wiring. A total of the ratios of the conductor diameters to the lengths of the predetermined number of the wirings for adjustment is determined as a value less than the subtracted value.

First claim

What is claimed is:

1. A power generating system comprising:
a plurality of power generating units coupled in parallel;
a power collecting device for collecting electric power output from the plurality of power generating units; and
wiring for coupling the plurality of power generating units and the power collecting device,
wherein a ratio of a conductor diameter to a predetermined length of each of the wirings is defined as a reference ratio,
wherein a value obtained by multiplying the reference ratio, a number of the wirings, and a loss generated by a specific wiring together is subtracted from a value obtained by multiplying a predetermined number of wirings for adjustment by a ratio of a conductor diameter to a length of the specific wiring, and
wherein a total of the ratios of the conductor diameters to the lengths of the predetermined number of the wirings for adjustment is determined as a value less than the subtracted value.

2. The power generating system according to claim 1 , further comprising a coupling device provided between at least one of the plurality of power generating units and the power collecting device, the at least one of the plurality of power generating units being coupled to the coupling device
wherein each of the wirings is included in any one of a first wiring group between the power collecting device and the coupling device and a second wiring group between the coupling device and the plurality of power generating units, and
wherein the specific wiring and the wirings for adjustment are included in the first wiring group.

3. The power generating system according to claim 1 , further comprising a coupling device provided between at least one of the plurality of power generating units and the power collecting device, the at least one of the plurality of power generating units being coupled to the coupling device,
wherein each of the wirings is included in any one of a first wiring group between the power collecting device and the coupling device and a second wiring group between the coupling device and the plurality of power generating units, and
wherein the specific wiring and the wirings for adjustment are included in the second wiring group.

4. A method of designing a power generating system including a plurality of power generating units coupled in parallel, a power collecting device for collecting electric power output from the plurality of power generating units, and wirings for coupling the plurality of power generating units and the power collecting device, the method comprising steps of:
identifying, by a hardware processor, a reference ratio as a ratio of a conductor diameter to a predetermined length of each of the wirings;
subtracting, by the hardware processor, a value obtained by multiplying the reference ratio, a number of the wirings, and a loss generated by a specific wiring together from a value obtained by multiplying a predetermined number of wirings for adjustment by a ratio of a conductor diameter to a length of the specific wiring;
determining, by the hardware processor, a total of the ratios of the conductor diameters to the lengths of the predetermined number of the wirings so as to be less than the subtracted value;
calculating, by the hardware processor, one or more parameters associated with the wirings for coupling the plurality of power generating units and the power collecting device based on the determined total of the ratios; and
adjusting the wirings based on the calculated one or more parameters to achieve lower resistance and compensate for power losses.

5. The method of designing a power generating system according to claim 4 ,
wherein the power generating system further includes a coupling device provided between at least one of the plurality of power generating units and the power collecting device, the at least one of the plurality of power generating units being coupled to the coupling device,
wherein each of the wirings are included in any one of a first wiring group between the power collecting device and the coupling device and a second wiring group between the coupling device and the plurality of power generating units, and
wherein the method further comprising a step of determining the specific wiring and the wirings for adjustment being included in the first wiring group.

6. The method of designing a power generating system according to claim 4 ,
wherein the power generating system further comprises a coupling device provided between at least one of the plurality of power generating units and the power collecting device, the at least one of the plurality of power generating units being coupled to the coupling device,
wherein the wirings are included in any one of a first wiring group between the power collecting device and the coupling device and a second wiring group between the coupling device and the plurality of power generating units, and
wherein the method further comprising a step of determining the specific wiring and the wirings for adjustment being included in the second wiring group.

Assignees

• Hitachi Ltd

Inventors

• Kouno Toru
• Nagayama Yuuichi
• Fujimori Masaaki
• Nakamura Tomoharu
• Morikawa Koki

Classifications

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• G06F30/00

  Computer-aided design [CAD] · CPC title

• H02S10/00

  PV power plants; Combinations of PV energy systems with other systems for the generation of electric power · CPC title

• G06F30/39 Primary

  Circuit design at the physical level (physical level design for reconfigurable circuits G06F30/347) · CPC title

• G06F17/5068

  Physics · mapped topic