Demand response determination apparatus and method for determining a power threshold using an over-consumption false positive rate and unloading electric power equipment when the power threshold is exceeded

• US 9,438,039 B2
• Filed: 01/22/2013
• Issued: 09/06/2016
• Est. Priority Date: 12/04/2012
• Status: Active Grant

• Current Assignee: Institute For Information Industry
• Original Assignee: Institute For Information Industry
• Inventors: Tsai, Gary, Lin, Gu-Yuan, Tsou, Yu-Ting, Sung, Jing-Tain
• Primary Examiner(s): Cassity, Robert
• Application Number:
  US13/746,501
• Publication Number:
  US 20140157027A1
• Time in Patent Office: 1,323 Days
• Field of Search: 713/323, 713/300
• US Class Current: 1/1
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02P 90/82 Energy audits or management systems therefor
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A demand response determination apparatus and a demand response determination method thereof are provided. The demand response determination apparatus connects to an electric power system via a network. The demand response determination apparatus receives power consumption information from the electric power system and decides a power consumption mode of the electric power system according to the power consumption information. The demand response determination apparatus calculates demanded power according to the power consumption mode and determines whether the demanded power exceeds a power consumption threshold. The demand response determination apparatus informs the electric power system to unload electric power equipment when the demanded power exceeds the power consumption threshold.

Claims

1. A demand response determination method for a demand response determination apparatus, the demand response determination apparatus being connected to an electric power system via a network, the demand response determination method comprising the steps of:

(a) enabling the demand response determination apparatus to receive at least one piece of power consumption information from the electric power system;

(b) enabling the demand response determination apparatus to decide a power consumption mode of the electric power system according to the at least one piece of power consumption information;

(c) enabling the demand response determination apparatus to calculate a demanded power according to the power consumption mode;

(d1) enabling the demand response determination apparatus to determine a plurality of over-consumption false positive rates corresponding to a plurality of preset electric power thresholds according to the demanded power calculated based on the power consumption mode;

(d2) enabling the demand response determination apparatus to decide at least one first over-consumption false positive rate from the plurality of over-consumption false positive rates, wherein the at least one first over-consumption false positive rate is smaller than a preset over-consumption false positive rate;

(d3) enabling the demand response determination apparatus to determine that a maximum rate of the at least one first over-consumption false positive rate is a second over-consumption false positive rate;

(d4) enabling the demand response determination apparatus to determine a primary electric power threshold corresponding to the second over-consumption false positive rate, wherein the primary electric power threshold is a power consumption threshold; and

(d5) enabling the demand response determination apparatus to determine whether the demanded power exceeds the power consumption threshold, wherein if the demanded power exceeds the power consumption threshold, then the demand response determination apparatus transmits to the electric power system an over-consumption message which informs the electric power system to unload electric power equipment.

2. The demand response determination method as claimed in claim 1, wherein the step (d5) further comprises the step of:

(d51) enabling the demand response determination apparatus to determine whether the demanded power exceeds the power consumption threshold, wherein if the demanded power does not exceed the power consumption threshold, the demand response determination apparatus transmits to the electric power system a non-over-consumption message which informs the electric power system to load the electric power equipment.

3. The demand response determination method as claimed in claim 1, wherein the at least one piece of power consumption information comprises a power consumption period, and the step (b) further comprises the step of:

(b1) enabling the demand response determination apparatus to decide that the power consumption mode of the electric power system is a periodic power consumption mode according to the power consumption period comprised in the at least one piece of power consumption information;

wherein the step (c) further comprises the following steps of;

(c1) enabling the demand response determination apparatus to decide a power consumption period model of the electric power system according to the periodic power consumption mode; and

(c2) enabling the demand response determination apparatus to calculate the demanded power according to the power consumption period model.

4. The demand response determination method as claimed in claim 1, wherein the at least one piece of power consumption information comprises a first total power consumption and a second total power consumption, and the step (b) further comprises the step of:

(b1) enabling the demand response determination apparatus to decide the power consumption mode of the electric power system to be a total power consumption correlation mode according to the first total power consumption and the second total power consumption;

wherein the step (c) further comprises the following steps of;

(c1) enabling the demand response determination apparatus to decide a total power consumption correlation model of the electric power system according to the total power consumption correlation mode; and

(c2) enabling the demand response determination apparatus to calculate the demanded power according to the total power consumption correlation model.

5. The demand response determination method as claimed in claim 1, wherein the at least one piece of power consumption information comprises a first total power consumption, a second total power consumption and a third total power consumption, and the step (b) further comprises the step of:

(b1) enabling the demand response determination apparatus to decide the power consumption mode of the electric power system to be a regression power consumption mode according to the first total power consumption, the second total power consumption and the third total power consumption;

wherein the step (c) further comprises the following steps of;

(c1) enabling the demand response determination apparatus to decide a power consumption regression model of the electric power system according to the regression power consumption mode; and

(c2) enabling the demand response determination apparatus to calculate the demanded power according to the power consumption regression model.

6. The demand response determination method as claimed in claim 5, wherein the step (a) further comprises the step of:

(a1) enabling the demand response determination apparatus to analyze an equipment power consumption status of the first total power consumption, an equipment power consumption status of the second total power consumption and an equipment power consumption status of the third total power consumption by means of a principal components analysis (PCA) mode and according to the at least one piece of power consumption information;

wherein the step (b1) further comprises the following step of;

(b2) enabling the demand response determination apparatus to decide the power consumption mode of the electric power system to be the regression power consumption mode according to the equipment power consumption status of the first total power consumption, the equipment power consumption status of the second total power consumption and the equipment power consumption status of the third total power consumption, wherein the regression power consumption mode is a support vector regression mode.

7. A demand response determination apparatus, being connected to an electric power system via a network, the demand response determination apparatus comprising:

a memory, being configured to store a power consumption threshold and a plurality of preset electric power thresholds;

a transceiver, being configured to receive at least one piece of power consumption information from the electric power system; and

a processor, being configured to decide a power consumption mode of the electric power system according to the at least one piece of power consumption information and calculate a demanded power according to the power consumption mode;

wherein the processor is further configured to;

determine a plurality of over-consumption false positive rates corresponding to the preset electric power thresholds according to the demanded power calculated based on the power consumption mode;

decide at least one first over-consumption false positive rate from the plurality of over-consumption false positive rates which is smaller than a preset over-consumption false positive rate;

determine that a maximum rate of the at least one first over-consumption false positive rate is a second over-consumption false positive rate;

determine a primary electric power threshold corresponding to the second over-consumption false positive rate, wherein the primary electric power threshold is the power consumption threshold; and

determine whether the demanded power exceeds the power consumption threshold, and if the demanded power exceeds the power consumption threshold, then the processor further transmits an over-consumption message, which informs the electric power system to unload electric power equipment, to the electric power system via the transceiver.

8. The demand response determination apparatus as claimed in claim 7, wherein the processor is further configured to determine whether the demanded power exceeds the power consumption threshold, and if the demanded power does not exceed the power consumption threshold, the demand response determination apparatus transmits to the electric power system a non-over-consumption message which informs the electric power system to load the electric power equipment.

9. The demand response determination apparatus as claimed in claim 7, wherein the at least one piece of power consumption information comprises a power consumption period, and the processor is further configured to:

decide that the power consumption mode of the electric power system is a periodic power consumption mode according to the power consumption period comprised in the at least one piece of power consumption information, decide a power consumption period model of the electric power system according to the periodic power consumption mode, and calculate the demanded power according to the power consumption period model.

10. The demand response determination apparatus as claimed in claim 7, wherein the at least one piece of power consumption information comprises a first total power consumption and a second total power consumption, and the processor is further configured to:

decide the power consumption mode of the electric power system to be a total power consumption correlation mode according to the first total power consumption and the second total power consumption, decide a total power consumption correlation model of the electric power system according to the total power consumption correlation mode, and calculate the demanded power according to the total power consumption correlation model.

11. The demand response determination apparatus as claimed in claim 7, wherein the at least one piece of power consumption information comprises a first total power consumption, a second total power consumption and a third total power consumption, and the processor is further configured to:

decide the power consumption mode of the electric power system to be a regression power consumption mode according to the first total power consumption, the second total power consumption and the third total power consumption, decide a power consumption regression model of the electric power system according to the regression power consumption mode, and calculate the demanded power according to the power consumption regression model.

12. The demand response determination apparatus as claimed in claim 11, wherein the processor is further configured to analyze an equipment power consumption status of the first total power consumption, an equipment power consumption status of the second total power consumption and an equipment power consumption status of the third total power consumption by means of a principal components analysis (PCA) mode, and to decide the power consumption mode of the electric power system to be the regression power consumption mode according to the equipment power consumption status of the first total power consumption, the equipment power consumption status of the second total power consumption and the equipment power consumption status of the third total power consumption, and the regression power consumption mode is a support vector regression mode.