Aggregation system, control method thereof, and control apparatus

Patent metadata

Field	Value
Publication number	US-10727784-B2
Application number	US-201716327348-A
Country	US
Kind code	B2
Filing date	Aug 23, 2017
Priority date	Aug 23, 2016
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

In an aggregation system comprising a control apparatus which is provided for each consumer and a server apparatus, the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requested power provision amount, and sends the respective control instructions designating the calculated allocation amount of each consumer to the control apparatus of the consumer, and the control apparatuses each control the charging and discharging of the corresponding power apparatus so that the power input from the system is equal to or smaller than the allocation amount designated in the control instruction or so that power equal to or larger than the allocation amount is output to the system.

First claim

The invention claimed is:

1. An aggregation system, comprising:
a control apparatus which is provided for each consumer and controls charging and discharging of each of one or more subordinate power apparatuses and power I/O to/from a system respectively; and
a server apparatus which sends a demand response-related control instruction to the control apparatus of each of the consumers respectively, wherein the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requested task and power provision amount, and sends the respective control instructions designating the calculated allocation amount of each consumer to the control apparatus of the consumer,
wherein the control apparatuses each control the charging and discharging of the corresponding power apparatus so that the power input from the system is equal to or smaller than the allocation amount designated in the control instruction or so that power equal to or larger than the allocation amount is output to the system,
wherein the control apparatus is a power conversion apparatus which converts the power that is input from the system from AC to DC and charges the required power apparatus and which converts the power that has been discharged from the power apparatus from DC to AC and outputs the power to the system,
wherein the server apparatus designates, in the control instruction and in addition to the allocation amount, a control mode which prescribes a power discharging source and a discharging destination of the power, or an operation mode comprising a combination of a plurality of the control mode, and
wherein the control apparatus exercises control to input and output power of the allocation amount designated in the control instruction to/from the system and charge and discharge the corresponding power apparatus by means of the operation mode or control mode designated in the control instruction.

2. The aggregation system according to claim 1 ,
wherein the control apparatus periodically issues notification of the status of each subordinate power apparatus to the server apparatus, and
wherein the server apparatus allocates the allocation amount corresponding to the status of each of the power apparatuses notified by each of the control apparatuses to each of the consumers.

3. An aggregation system, comprising:
a control apparatus which is provided for each consumer and controls charging and discharging of each of one or more subordinate power apparatuses and power I/O to/from a system respectively; and
a server apparatus which sends a demand response-related control instruction to the control apparatus of each of the consumers respectively,
wherein the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requested task and power provision amount, and sends the respective control instructions designating the calculated allocation amount of each consumer to the control apparatus of the consumer,
wherein the control apparatuses each control the charging and discharging of the corresponding power apparatus so that the power input from the system is equal to or smaller than the allocation amount designated in the control instruction or so that power equal to or larger than the allocation amount is output to the system,
wherein the control apparatus is a power conversion apparatus which converts the power that is input from the system from AC to DC and charges the required power apparatus and which converts the power that has been discharged from the power apparatus from DC to AC and outputs the power to the system,
wherein a plurality of types of the operation mode are predefined,
wherein the consumer is able to configure the desired operation mode for its own control apparatus, and
wherein the server apparatus allocates the allocation amount to the consumer of the control apparatus for which an operation mode prioritizing the control instruction from the server apparatus has been configured as the operation mode.

4. An aggregation system control method, which aggregation system comprises a control apparatus which is provided for each consumer and controls charging and discharging of each of one or more subordinate power apparatuses and power I/O to/from a system respectively; and
a server apparatus which sends a demand response-related control instruction to the control apparatus of each of the consumers respectively, the aggregation system control method comprising:
a first step in which the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requested task and power provision amount, and sends the respective control instructions designating the calculated allocation amount of each consumer to the control apparatus of the consumer, and
a second step in which the control apparatuses each control the charging and discharging of the corresponding power apparatus so that the power input from the system is equal to or smaller than the allocation amount designated in the control instruction or so that power equal to or larger than the allocation amount is output to the system,
wherein the control apparatus is a power conversion apparatus which converts the power that is input from the system from AC to DC and charges the required power apparatus and which converts the power that has been discharged from the power apparatus from DC to AC and outputs the power to the system, wherein, in the first step, the server apparatus designates, in the control instruction and in addition to the allocation amount, a control mode which prescribes a power discharging source and a discharging destination of the power, or an operation mode comprising a combination of a plurality of the control mode, and
wherein, in the second step, the control apparatus exercises control to input and output power of the allocation amount designated in the control instruction to/from the system and charge and discharge the corresponding power apparatus by means of the operation mode or control mode designated in the control instruction.

5. The aggregation system control method according to claim 4 ,
wherein the control apparatus periodically issues notification of the status of each subordinate power apparatus to the server apparatus, and

wherein, in the first step, the server apparatus allocates the allocation amount corresponding to the status of each of the power apparatuses notified by each of the control apparatuses to each of the consumers.

6. An aggregation system control method, which aggregation system comprises a control apparatus which is provided for each consumer and controls charging and discharging of each of one or more subordinate power apparatuses and power I/O to/from a system respectively; and
a server apparatus which sends a demand response-related control instruction to the control apparatus of each of the consumers respectively, the aggregation system control method comprising:
a first step in which the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requeste

Assignees

• Hitachi Ltd
• Iks Co Ltd

Inventors

• Kobayashi Hideki
• Hiraoka Kouichi
• Takayama Mitsumasa
• Takahashi Jun
• Fujiki Yuji
• Imai Takashi

Classifications

• H02J2105/42

  Home appliances · CPC title

• H02J13/10

  characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems · CPC title

• H02J13/14 Primary

  the power network being locally controlled, e.g. home energy management systems [HEMS] · CPC title

• H02J2105/12

  supplying households or buildings · CPC title

• H02J3/46

  Controlling the sharing of generated power between the generators, sources or networks · CPC title