POWER STATION SYSTEM, AND SERVER FOR POWER STATION SYSTEM

• US 20180137580A1
• Filed: 05/13/2016
• Published: 05/17/2018
• Est. Priority Date: 05/15/2015
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Energy Systems & Solutions Corporation (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Energy Systems & Solutions Corporation (Toshiba Corporation)
• Inventors: PORNMONTARUT, Puttisin, TAKEDA, Daisuke
• Application Number:
  US15/574,348
• Publication Number:
  US 20180137580A1
• Time in Patent Office: Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06Q 40/12 Accounting
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 10/76 Power conversion electric or electronic aspects

Abstract

A power station system and a server thereof. The server includes a power-generation-amount calculator, a trade amount calculator, a balance calculator, and an information display controller. The power-generation-amount calculator proportionally distributes power generation amount information in accordance with power generation share number information, and adds a distribution value to owned power amount information of each member. The trade amount calculator subtracts a power sales amount from the owned power amount information. The balance calculator adds a power sales profit based on a change in the owned power amount information to balance information. The information display controller transmits the owned power amount information of the member and the balance information thereof to a computer terminal.

Claims

1. A server capable of transmitting data to and receiving data from a power station system comprising power generation facilities, and computer terminals of a plurality of members, the server comprising:

a receiving unit receiving power generation amount information of the power generation facilities;

a memory unit storing power generation share number information, owned power generation amount information, and balance information for each member identification information of each of the members;

a power-generation-amount calculating unit adding a power generation distribution amount obtained by proportionally distributing a value of the power generation amount information in accordance with a value of the power generation share number information to a value of the owned power amount information of each of the members;

a trade amount calculating unit subtracting a power sales amount from the owned power amount information;

a balance calculating unit calculating a power sales profit based on a change in the owned power amount information, and adding the power sales profit to the balance information; and

an information display control unit transmitting the owned power amount information of the member and the balance information of the member to the computer terminal.

2. The server according to claim 1, wherein:

the server is connected to a power meter of the member so as to be capable transmitting data thereto and receiving data therefrom,

the server further comprising a power-consumption-amount calculating unit subtracting a value of the power consumption amount information of the member from a value of the owned power amount information of the same member, wherein;

the receiving unit receives the power consumption amount information from the power meter;

the balance calculating unit calculates the power sales profit in cases other than a subtraction based on the power consumption amount information; and

the information display control unit further transmits the power consumption amount to the computer terminal.

3. The server according to claim 1, wherein:

the power station system comprises an energy storage device; and

the trade amount calculating unit subtracts the power sales from the owned power amount information based on a request from the computer terminal.

4. The server according to claim 3, wherein:

the memory unit further stores power storage share number information for each of the member identification information;

the power-generation-amount calculating unit changes the owned power amount information with a value obtained by multiplying the power storage share number information by a power storage capacity per a share number being an upper limit; and

the balance calculating unit adds the power sales profit that is an excess from the upper limit to the balance information.

5. The server according to claim 1, further comprising a trade control unit determining a trade condition that matches between sales request information on a power generation share number and purchase request information thereon, wherein:

the receiving unit receives the sales request information on the power generation share number and the purchase request information thereon from the computer terminal of the member;

the trade amount calculating unit subtracts a value indicated by the sales request information determined as matching the trade condition from the power storage share number information of a seller, and adds a value indicated by the purchase request information determined as matching the trade condition to the power storage share number information of a purchaser; and

the balance calculating unit increases a value of the balance information of the seller based on the sales request information determined as matching the trade condition, and decreases a value of the balance information of the purchaser based on the purchase request information determined as matching the trade condition.

6. The server according to claim 4, further comprising a trade control unit determining a trade condition that matches between sales request information on a power storage share number and purchase request information thereon, wherein:

the receiving unit receives the sales request information on the power storage share number and the purchase request information thereon from the computer terminal of the member;

the trade amount calculating unit subtracts a value indicated by the sales request information determined as matching the trade condition from the power storage share number information of a seller, and adds a value indicated by the purchase request information determined as matching the trade condition to the power storage share number information of a purchaser; and

the balance calculating unit increases a value of the balance information of the seller based on the sales request information determined as matching the trade condition, and decreases a value of the balance information of the purchaser based on the purchase request information determined as matching the trade condition.

7. The server according to claim 1, further comprising:

a trade control unit determining a trade condition that matches between sales request information of the power amount and purchase request information thereon; and

a power transmission control unit instructing an actual power sales amount to the system based on the purchase request information determined as matching the trade condition, wherein;

the receiving unit receives the purchase request information of the power amount from an external side of the system, and receives the sales request information of the power amount from the computer terminal of the member;

the trade amount calculating unit subtracts a value indicated by the sales request information determined as matching the trade condition from the owned power amount information of a seller; and

the balance calculating unit increases a value of the balance information of the seller based on the sales request information determined as matching the trade condition.

8. The server according to claim 7, wherein:

the receiving unit receives the purchase request information of the power amount from the computer terminal of the member;

the trade amount calculating unit adds a value indicated by the purchase request information of the member determined as matching the trade condition to the owned power amount information of a purchaser; and

the balance calculating unit decreases a value of the balance information of the purchaser based on the purchase request information of the member determined as matching the trade condition.

9. The server according to claim 5, wherein:

the purchase request information and the sales request information both in a limit order contain a purchase amount or a sales amount, and a unit price;

the purchase request information and the sales request information both in a market order contain a purchase amount or a sales amount;

the trade control unit determines the trade condition matching between the requests having the unit price consistent with each other, between the sales request in the market order and the purchase request with a highest unit price, and between the purchase request in the market order and the sales request with a lowest unit price.

10. The server according to claim 9, wherein:

the purchase request information and the sales request information each contain execution timing information; and

the trade control unit determines as the trade condition matching between the request further having the execution timing information consistent with each other.

11. The server according to claim 10, wherein the power transmission control unit transmits, to the system, a power transmission amount to an external side of the system and the execution timing information.

12. The server according to claim 1, wherein:

the power-generation-amount calculating unit proportionally distributes a positive remaining value obtained by subtracting the power transmission amount to the external side of the system from a lower limit value of the power transmission amount or an instructed value thereof in accordance with a value of the power generation share number information, and subtracts a distribution value from the owned power amount information; and

the balance calculating unit adds a power sales profit based on the distribution value to the balance information.

13. The server according to claim 7, wherein the trade control unit stops the determination of the trade condition matching when a power transmission amount to an external side of the system exceeds an upper limit value of the power transmission amount or a limiter value set based on an instructed value.

14. The server according to claim 5, wherein the information display control unit further transmits a list of a purchase amount of a purchase request and a sales amount of a sales request arranged unit price by unit price to the computer terminal of the member.

15. A power station system connected to computer terminals of a plurality of members so as to be capable of transmitting data to and receiving data from the computer terminal, and comprising power generation facilities, the power station system further comprising:

a receiving unit receiving power generation amount information of the power generation facilities;

a memory unit storing power generation share number information, owned power amount information, and balance information for each member identification information of each of the members;

a power-generation-amount calculating unit adding a power generation distribution amount obtained by proportionally distributing a value of the power generation amount information in accordance with a value of the power generation share number information to a value of the owned power amount information of each of the members;

a trade amount calculating unit subtracting a power sales amount from the owned power amount information;

a balance calculating unit calculating a power sales profit based on a change in the owned power amount information, and adding the power sales profit to the balance information; and

an information display control unit transmitting the owned power amount information of the member and the balance information of the member to the computer terminal.