System energy efficiency controller, energy efficiency gain device and smart energy service system used for energy utilization

• US 9,690,275 B2
• Filed: 04/29/2011
• Issued: 06/27/2017
• Est. Priority Date: 04/30/2010
• Status: Active Grant

• Current Assignee: ENN Science and Technology Development Co., Ltd.
• Original Assignee: ENN Science and Technology Development Co., Ltd.
• Inventors: Gan, Zhongxue, Wu, Hao, Tang, Qing, Li, Jinlai, Fang, Zhenlei, Liu, Tao
• Primary Examiner(s): Huang, Miranda
• Assistant Examiner(s): Alvarez, Olvin Lopez
• Application Number:
  US13/695,153
• Publication Number:
  US 20130073098A1
• Time in Patent Office: 2,251 Days
• Field of Search: 700286, 700291, 700295
• CPC Class Codes: G05B 19/02 electric
• CPC Class Codes: H02J 2300/10 The dispersed energy generation being of fossil origin, e.g. diesel generators
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2300/22 The renewable source being solar energy
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 2300/28 The renewable source being wind energy
• CPC Class Codes: H02J 2300/40 wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 3/38 Arrangements for parallely feeding a single network by two or more generators, converters or transformers
• 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: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 10/76 Power conversion electric or electronic aspects
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin
• CPC Class Codes: Y02P 80/10 Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

A system energy efficiency controller connected (105) to at least one of an energy generation device (101), an energy storage device (102), an energy utilization device (103) and an energy regeneration device (104) is disclosed for enabling energy utilization. Said system energy efficiency controller (105) cooperatively controls the input and output of a ubiquitous energy flow of at least one of the energy generation device (101), the energy storage device (102), the energy utilization device (103) and the energy regeneration device (104). Said ubiquitous energy flow includes at least one of an energy flow, a material flow, and an information flow. Also disclosed are an energy efficiency gain device, an energy efficiency matching station and a smart energy service system, which are connected with the controller (105). The present invention optimizes the entire process of energy utilization using the system energy efficiency controller (105), thus improving the system energy efficiency.

Claims

1. A system energy efficiency controller for a ubiquitous energy network, which is connected to an energy generation device, an energy storage device, an energy utilization device and an energy regeneration device, comprising:

the system energy efficiency controller cooperatively controlling an input and an output of a ubiquitous energy flow of the energy generation device, the energy storage device, the energy utilization device and the energy regeneration device; and

the ubiquitous energy flow includes a flow formed by cooperatively coupling an energy flow, a material flow and an information flow;

the ubiquitous energy network including a closed-loop smart energy network system formed with a complete life-cycle of an energy, and being formed by nodes that are connected together via a virtual pipeline interconnected network architecture for transmitting the ubiquitous energy flow, with the energy flow, material flow, and information flow being bidirectionally transmitted between the nodes; and

the system energy efficiency controller connecting smart terminals of equipment in four stages for the energy generation device, energy storage device, energy utilization device, energy regeneration device, ubiquitous energy network nodes and ubiquitous energy gateways via a ubiquitous energy network, predicting a flow direction change and a flow quantity fluctuation of the energy flow, material flow, and information flow in a future period of time according to a flow quantity and a flow direction of the energy flow, the information flow, the material flow and according to an operating status of each equipment of the four stages that are monitored in real time, and timely adjusting control parameters of the ubiquitous energy network equipment of the four stages, the ubiquitous energy network nodes, and the ubiquitous energy gateways of the four stages according to the predicted flow quantity and flow direction, and the operating status of each equipment of the four stages, thereby fully utilizing an energy such as solar energy, geothermal energy and wind energy within a region where the four stages exist, and achieving an optimal system energy efficiency;

wherein the system energy efficiency controller realizes information and energy interaction and cooperation, and is a physical carrier that realizes self-organized ordering of the smart energy network system.

2. The system energy efficiency controller of claim 1, wherein, the energy generation device includes a distributed energy system.

3. The system energy efficiency controller of claim 2, wherein, the distributed energy system is located near the energy utilization device.

4. The system energy efficiency controller of claim 2, wherein, the distributed energy system includes an electric power generation device.

5. The system energy efficiency controller of claim 1, further comprising the energy generation device that includes at least the following:

a heat energy generation device that generates heat energy by utilizing exhaust gas and waste heat generated by an electric power generation device;

an electric energy generation device that generates electric energy by utilizing exhaust gas generated by the electric power generation device;

wherein the energy storage device is at least one of a vanadium redox battery, a lithium ion battery and a heat or cold storage tank;

the energy utilization device includes a charging station, a gas filling station, a factory power utilization equipment, a villa, an apartment and a smart energy service system; and

the energy regeneration device includes a microalgae carbon absorption device, a waste water regeneration device and a waste heat regeneration device.

6. The system energy efficiency controller of claim 1, wherein, the system energy efficiency controller includes at least two of a terminal, an exchanger, a router, a logic controller, a building controller, an industrial control machine, a special-purpose control system or controller, and an energy efficiency optimizer.

7. The system energy efficiency controller of claim 6, wherein, the energy efficiency optimizer includes a process optimizer, a stage optimizer, a gas or electric or heating network optimizer, a central optimizer, a simulator or emulator, a client-side publisher, an exchanger, a router and a terminal.

8. The system energy efficiency controller of claim 7, wherein, the process optimizer lowers the overall energy consumption by fine tuning a steady-state operating parameter of each equipment;

or

the process optimizer improves a residual-heat efficiency in a stepped utilization of heat energy, to improve an energy conversion efficiency of the system;

or

the process optimizer is connected to a plurality of energy generation devices, and starts or stops at least one of said plurality of energy generation devices in response to a change of the system energy efficiency;

or

the energy storage device includes heat or cold storage tank; and

the process optimizer starts or stops the energy storage device to perform cross-period or cross-season heat or cold storage;

or

the energy generation device includes solar electric power generation device, the energy storage device includes at least one of a vanadium redox battery and a lithium ion battery; and

the process optimizer starts or stops the energy storage device to balance an output power fluctuation of the energy generation device.

9. The system energy efficiency controller of claim 1, wherein, the system energy efficiency controller obtains state information of the energy generation device, the energy storage device, the energy utilization device and the energy regeneration device connected therewith, and transfers a control command to the energy generation device, the energy storage device, the energy utilization device and the energy regeneration device to perform energy efficiency optimization.

10. The system energy efficiency controller of claim 1, wherein, the energy flow includes electric energy and heat energy;

or

the material flow is at least one selected from products generated by cold, heat, electricity and an energy regeneration device.

11. The system energy efficiency controller of claim 10, wherein, the material flow includes at least one of natural gas, hot water, cold water, CO2 and biogas;

or

the product generated by the energy regeneration device is helix algae.

12. The system energy efficiency controller of claim 1, wherein, the information flow includes virtual tags of the energy generation device, the energy storage device, the energy utilization device and the energy regeneration device and real-time price information of the energy.

13. The system energy efficiency controller of claim 12, wherein, the virtual tag is data encapsulation including attribute information of the energy flow and the material flow and at least one of the transmission source and the transmission destination.

14. The system energy efficiency controller of claim 1, wherein, the information flow is transmitted via at least one of an optical fiber, a power line carrier and an electric cable.

15. The system energy efficiency controller of claim 1, wherein, the system energy efficiency controller realizes machine-machine mutual sensing;

or

the system energy efficiency controller provides, to a manager, information for a decision on optimizing the energy efficiency and performing control.

16. An energy efficiency gain device, comprising:

the system energy efficiency controller of claim 1 and a potential energy pump connected with the system energy efficiency controller, wherein;

the potential energy pump consumes electric energy provided by an electric energy generation device, upgrades waste heat generated by an energy utilization device to be utilizable, and transmits the upgraded heat to a heat storage device or supplies the upgraded heat directly to an energy utilization device for direct utilization.

17. The energy efficiency gain device of claim 16, further comprising:

a distributed electric power generation device, a heat or cold generation device and a heat or cold storage device.