Network controller for managing the supply and distribution of electrical power

• US 20020190576A1
• Filed: 06/15/2001
• Published: 12/19/2002
• Est. Priority Date: 06/15/2001
• Status: Abandoned Application

• Current Assignee: Generac Power Systems Incorporated (Generac Holdings Incorporated)
• Original Assignee: Generac Power Systems Incorporated (Generac Holdings Incorporated)
• Inventors: Wedel, Francis X., Kern, Robert D., Ruehlow, Gerald C., Harrison, Phillip, McLean, Graham, Wilcox, Steven J., Zhou, Hongping
• Application Number:
  US09/881,998
• Publication Number:
  US 20020190576A1
• Time in Patent Office: Days
• US Class Current: 307/18
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00006 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
• CPC Class Codes: H02J 3/38 Arrangements for parallely feeding a single network by two or more generators, converters or transformers
• CPC Class Codes: Y02E 40/70 Smart grids as climate change mitigation technology in the energy generation sector
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/12 Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
• CPC Class Codes: Y04S 10/30 State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
• CPC Class Codes: Y04S 40/12 characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

Abstract

A network controller and method is provided for managing the supply and distribution of electrical power. The network controller includes a plurality of power generation systems which are connected to a power network for communication thereon. Each power generation system includes at least one power generation unit connected to a corresponding sub-network. A user interface is connected to the power network for communicating with the first and second power generation systems. The network user interface allows a network user to set values for various predetermined operating parameters of the power generation units of the first and second power generation systems.

Claims

1. A network controller for managing the supply and distribution of electrical power, comprising:

a first power generation system for providing electrical power, the first power generation system connectable to a power network for communication thereon and including;

at least one first generator set connectable to a first load and to a first network, each first generator set having the ability to be started and stopped;

a user interface for allowing a first user to select a first generator set and to set values for various predetermined operating parameters of the selected first generator set; and

a system communications link connectable to the first network for transmitting the user set values of the predetermined operating parameters to the selected first generator set;

a second power generation system for providing electrical power, the second power generation system connectable to the power network for communication thereon and including;

at least one second generator set connectable to a second load and to a second network, each second generator set having the ability to be started and stopped;

a user interface for allowing a second user to select a second generator set and to set values for various predetermined operating parameters of the selected second generator set; and

a system communications link connectable to the second network for transmitting the user set values of the predetermined operating parameters to the selected second generator set;

a network user interface connectable to the power network for communicating with the user interfaces of the first and second power generation systems and for allowing a network user to set values of the various predetermined operating parameters of the selected first and second generator sets.

2. The network controller of claim 1 wherein each of the first and second generator sets includes:

a generator connectable to the load, the generator generating AC power having a magnitude and a power factor, an AC voltage having a magnitude and a frequency, and an AC current having a magnitude and a frequency;

an engine operatively connected to the generator for driving the generator, the engine having an adjustable engine speed;

a generator control operatively connected to the engine for controlling operation thereof and operatively connected to the generator for controlling the AC power generated thereby; and

a generator communications link for operatively connecting the generator control to the network.

3. The network controller of claim 1 wherein the user interfaces of the first and second power generation systems include a display screen, each display screen displaying generator icons identifying corresponding generator sets attached to corresponding networks.

4. The network controller of claim 1 wherein the user interfaces of the first and second power generation systems include a generator settings screen for each generator set connected to a corresponding network, each generator settings screen allowing a user to input the values of a portion of the various operating parameters of the selected generator set.

5. The network controller of claim 1 wherein the user interfaces of the first and second power generation systems include a generator command screen for each generator set connected to a corresponding network, each generator command screen allowing a user to input the starting time for starting the selected generator set and the stopping time for stopping the selected generator s et.

6. The network controller of claim 5 wherein each generator command screen includes a day setting for allowing a user to select a day on which the selected generator set will be started and stopped in response to the starting time and stopping time inputted by the user.

7. The network controller of claim 5 wherein the user interfaces of the first and second power generation systems include a special day screen for each generator set connected to a corresponding network, the special day screen allowing the user to input a special day on which the selected generator set will be stopped.

8. A network controller for managing the supply and distribution of electrical power, comprising:

a first power generation system connectable to a power network for communication thereon and including at least one power generation unit connected to a sub-network and generating electrical power;

a second power generation system connectable to the power network for communication thereon and including at least one power generation unit connected to a second sub-network and generating electrical power; and

a network user interface connectable to the power network for communicating with the first and second power generation systems and for allowing a network user to set values of various predetermined operating parameters of the power generation units of the first and second power generation systems.

9. The network controller of claim 8 wherein each power generation unit of the first and second power generation system includes:

a generator connectable to the load, the generator generating AC power having a magnitude and a power factor, an AC voltage having a magnitude and a frequency, and an AC current having a magnitude and a frequency;

an engine operatively connected to the generator for driving the generator, the engine having an adjustable engine speed;

a generator control operatively connected to the engine for controlling operation thereof and operatively connected to the generator for controlling the AC power generated thereby; and

a generator communications link for operatively connecting the generator control to a corresponding sub-network.

10. The network controller of claim 8 wherein each power generation unit is connectable to a corresponding load and has the ability to be started and stopped, and wherein each power generation system includes:

a user interface for allowing a system user to select a power generation unit of a corresponding power generation system and to set values for various predetermined operating parameters of the selected power generation unit; and

a system communications link connectable to a corresponding sub-network for transmitting the user set values of the predetermined operating parameters to the selected generator set.

11. The network controller of claim 10 wherein each power generation system includes a monitoring structure connectable to a utility source which provides AC power having a magnitude and a power factor, AC voltage having a magnitude and a frequency, and AC current having a magnitude and a frequency, the monitoring structure measuring the magnitude and the frequency of the AC voltage and the AC current of the corresponding utility source and providing the same to the user interface of the corresponding power generation system.

12. The network controller of claim 11 wherein the each system communications link transmits the magnitude and power factor of the AC power and the magnitudes and frequencies of the AC voltage and AC current of the corresponding utility source to each power generation unit connected to a corresponding sub-network.

14. The method of claim 13 wherein each power generation unit of the first and second power generation system includes:

a generator connectable to the load, the generator generating AC power having a magnitude and a power factor, an AC voltage having a magnitude and a frequency, and an AC current having a magnitude and a frequency;

an engine operatively connected to the generator for driving the generator, the engine having an adjustable engine speed;

a generator control operatively connected to the engine for controlling operation thereof and operatively connected to the generator for controlling the AC power generated thereby; and

a generator communications link for operatively connecting the generator control to a corresponding sub-network.

15. The method of claim 14 comprising the additional step of connecting each power generation unit to a corresponding load.

16. The method of claim 15 comprising the additional steps of:

selecting a power generation unit of a power generation system and providing the same a selected power generation unit;

setting values for various predetermined operating parameters of the selected power generation unit; and

transmitting the values of the predetermined operating parameters to the selected power generation unit on a corresponding sub-network.

17. The method of claim 14 comprising the additional steps of:

providing a utility source which supplies AC power having a magnitude and a power factor, AC voltage having a magnitude and a frequency, and AC current having a magnitude and a frequency; and

connecting each to the utility source in response to the magnitude and frequency of the AC voltage generated by the power generation unit being generally equal to the magnitude and frequency of the AC voltage supplied by the utility source.

13. A method of managing the supply and distribution of electrical power, comprising the steps of:

connecting a plurality of power generation systems to a power network for communication thereon, each power generation system including at least one power generation unit connected to a sub-network and generating electrical power; and

transmitting instructions over the power network to the first and second power generation systems to control operation of the power generation units of the first and second power generation systems.