HOME ENERGY MANAGEMENT APPARATUS AND METHOD FOR INTERWORKING WITH NEW RENEWABLE ENERGY

• US 20130207466A1
• Filed: 02/06/2013
• Published: 08/15/2013
• Est. Priority Date: 02/09/2012
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: LEE, Jeong In, LEE, Il Woo
• Application Number:
  US13/760,567
• Publication Number:
  US 20130207466A1
• Time in Patent Office: Days
• US Class Current: 307/23
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 2300/28 The renewable source being wind energy wind motors F03D
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• 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: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 3/46 Controlling of the sharing of output between the generators, converters, or transformers
• CPC Class Codes: H02J 4/00 Circuit arrangements for mains or distribution networks not specified as ac or dc
• CPC Class Codes: Y02B 10/10 Photovoltaic [PV]
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin
• CPC Class Codes: Y04S 20/12 Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 Home appliances
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A home energy management apparatus and method for interworking with a new renewable energy are provided.

Claims

1. A home energy management apparatus for interworking with new renewable energy, the apparatus comprising:

new renewable energy in the form of a distributed energy resource (DER) in accordance with introduction of a smart grid; and

a home energy management system (HEMS) providing a monitor and control function related to trading and cost settlement of the new renewable energy through obtainment of environmental information, an association type of the new renewable energy, new renewable energy generation information, a state of an energy storage device, and real-time cost information.

2. The home energy management apparatus of claim 1, wherein the HEMS comprises:

a grid to supply power to home;

a load to consume supplied energy; and

an advanced metering infrastructure (AMI) to obtain state information related to supply and consumption of energy.

3. The home energy management apparatus of claim 1, wherein the HEMS comprises:

a small DER including an environment sensor to sense weather, temperature, wind, and the like, a new renewable energy power supply which operates based on environmental changes measured by the environmental sensor, a power conversion apparatus to monitor power quality of the new renewable energy, and an inverter to convert direct current (DC) power generated by the new renewable energy power supply to alternating current (AC) power;

an energy storage system including a battery to store the new renewable energy and a battery management system (BMS);

a remote terminal unit (RTU) and smartmeter to obtain data of the energy storage system;

a home gateway to provide a home network interface necessary for transmission of the data;

an energy management system to manage supply and demand of home energy, using the small DER and the energy storage system; and

a load to consume the home energy.

4. The home energy management apparatus of claim 1, wherein the HEMS comprises:

a small DER including an environment sensor to sense weather, temperature, wind, and the like, a new renewable energy power supply which operates based on environmental changes measured by the environmental sensor, a power conversion apparatus to monitor power quality of the new renewable energy, and an inverter to convert direct current (DC) power generated by the new renewable energy power supply to alternating current (AC) power;

a common grid to transmit a surplus energy to a grid when power generated by the new renewable energy power supply exceeds home energy consumption and therefore the surplus energy is generated, thereby receiving an incentive, or to perform energy trading such as discount of electricity rates;

an RTU and smartmeter to obtain data of the small DER;

a home gateway to provide a home network interface necessary for transmission of the data;

an energy management system to manage supply and demand of home energy using the small DER; and

a load to consume the home energy.

5. A home energy management method comprising:

selecting an association method of a new renewable energy;

determining presence or absence of an energy storage system according to the association method;

setting a grid association according to the presence or absence of the energy storage system; and

controlling the energy management system after confirming an association state and a communication access state of devices related to the new renewable energy.

6. The home energy management method of claim 5, wherein the controlling comprises:

monitoring a generation state of the new renewable energy;

monitoring a state of an inverter that converts direct current (DC) power generated by a new renewable energy power supply to alternating current (AC) power;

storing the new renewable energy in a battery;

obtaining state data of the battery; and

providing a home network interface necessary for transmission of the state data.

7. The home energy management method of claim 5, wherein the controlling comprises:

monitoring a generation state of the new renewable energy;

monitoring a state of an inverter that converts DC power generated by a new renewable energy power supply to AC power;

transmitting a surplus energy to a grid when power generated by the new renewable energy power supply exceeds home energy consumption and therefore the surplus energy is generated, thereby receiving an incentive, or performing energy trading such as discount of electricity rates;

obtaining state data of the battery; and

providing a home network interface necessary for transmission of the state data.