System and methods that facilitate the introduction of market based economic models for electric power

• US 5,894,422 A
• Filed: 01/27/1997
• Issued: 04/13/1999
• Est. Priority Date: 01/27/1997
• Status: Expired due to Fees

• Current Assignee: Norman E. Chasek
• Original Assignee: Norman E. Chasek
• Inventors: Chasek, Norman E.
• Primary Examiner(s): WACHSMAN, HAL D
• Application Number:
  US08/789,097
• Time in Patent Office: 806 Days
• Field of Search: 364/492-495, 364/483, 364/480, 364/481, 364/802, 364/550, 364/551.01, 364/578-580, 364/528.21, 364/528.26, 364/528.27, 364/528.29 , 364/528.3, 364/528.31, 364/528.32, 324/111, 324/113-116, 324/140 R, 324/141, 324/142, 340/500, 340/539, 340/870.02, 340/870.03, 340/825.72, 705/412, 702/57-62, 702/64, 702/65, 702/68, 702/79, 702/119, 702/120, 702/122, 702/123, 702/125, 702/176-179, 702/185, 702/187-189, 361/42, 361/62, 361/64-66, 361/68, 361/74, 361/78-81, 361/86, 361/87, 361/89, 361/94
• US Class Current: 700/291
• CPC Class Codes: G01D 4/006 Remote reading of utility meters to a non-fixed location, i.e. mobile location
• CPC Class Codes: G01R 21/1333 adapted for special tariff measuring
• 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: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

A smart meter/billing system that eases the transition to commodity-like marketplace operations for electric power, and supports near real-time load balancing between competing suppliers of electric power. Existing watt-hour meters become multi-parameter terminals or smart meters that measure consumption per unit of time correlatible to calendar-time, measure near real-time demand, measure reliability, store information and transmitting it to a smart meter reader when properly interrogated. The smart reader periodically sends its accumulated information to a billing computer. An optional ancillary system uses the same smart meters to support automatic load balancing between competing suppliers that share common distribution facilities. Supplier designated demand increments from possibly millions of consumers, are summed according to the supplier-of-record, over near real-time intervals. These sums are used by the suppliers to adjust their output power so it equals the actual, near real-time demand of their customers-of-record at any time.

Claims

1. A metering/billing system that when introduced into an existing electric power company facilitates its transition away from present electric utility'"'"'s cost based, fixed rate, regulated economic model into advanced market based, competitive deregulated economic models, is comprised of:

a multiplicity of smart meters each being comprised of;

means to measure energy consumption per long unit of time;

means to sequentially store numbers representing said measured energy consumption, with said numbers being accumulated over a meter read cycle;

means to measure time duration of any power outage condition and cumulatively store outage duration times over said meter read cycle;

means to permanently store customer ID(identification) code and semi-permanently store current choice-of-supplier code; and

a means to respond to properly addressed meter-reader radio commands by reading out said smart meter'"'"'s stored information for transmission to a meter reader;

a number of smart-meter-readers each comprised of;

means to initiate an interrogation of a particular smart meter;

means to store information being received;

means for generating a calendar-time tag for when each smart meter begins interrogation; and

means to transfer said meter reader'"'"'s information, gathered from many smart meter interrogations, to a billing computer; and

said

billing computer is programmed;

to receive and appropriately segregate inputted meter reader relayed information;

to assign a calendar-time number to each said long unit-of-time over a billing cycle, referencing each said calendar-time number from said meter reader'"'"'s calendar-time tag;

to use choice-of-supplier code to pick the appropriate supplier-provided look-up calendar-time/price listing and using said assigned calendar-time to select price from said listing;

to compute each bill from said selected price, and energy consumed over each long unit-of-time interval; and

to use cumulative power outage time data to generate an annualized reliability factor for each customer, from which said bill is appropriately adjusted.

2. System as recited in claim 1 wherein an ancillary system is added on to said system to support near real-time load balancing between competing suppliers sharing a common power distribution plant, said ancillary system is comprised of:

means to closely approximate real-time consumption by continuously running numbers that indicate energy consumption over short unit-of-time intervals, each said running number is made into a demand message by being joined with a current choice-of-supplier code;

means for transferring said running demand-messages from a smart meter location to a remote terminal located on customer'"'"'s premises, in close proximity to any existing transmission-line feed, said remote terminal is comprised of;

means for time compressing each said demand message;

means for inserting said time compressed demand message into an assigned time slot measured from the start of each said short unit-of-time interval; and

means for modulating each resulting time-slotted-compressed-demand-message onto an RF carrier for transfer to a closeby transmission line, said transmission line has a terminal-point, said terminal-point is comprised of;

means to divide each terminal-point'"'"'s output stream of running demand messages into several parallel supplier-specific running number streams;

means to sum running numbers over a short unit-of-time intervals in each supplier-specific running number stream where each number represents measured consumption over each said short unit-of-time interval; and

means for transmitting running sums from each terminal-point to each specified supplier'"'"'s generator site;

wherein said generator site is comprised of in addition to other than generators;

means to collect running sum-totals from each terminal-point in a power system'"'"'s service area;

means by which each supplier aggregates all received sum-totals into a running grand sum; and

means to use said running grand sum to determine what near real time power is to be injected into said power system by each said supplier so the generator'"'"'s output power will closely match the supplier'"'"'s customer'"'"'s real time demand.

3. System as recited in claim 2 wherein a connection between a smart meter and an existing cable television transmission line, which is used for a closeby transmission line, occurs via said remote terminal, said remote terminal is packaged to fit within a 110 VAC outlet, and is located in an outlet that is closest to an existing cable television feedline, and where the connection between the smart meter and remote terminal is made by modulating smart meter'"'"'s demand messages onto an RF carrier that propagates over 60 Hz wiring, said RF carrier being received at said remote terminal.

4. System as recited in claim 1 wherein an overlapping phase-in and test period is provided for installation of a new metering-billing system, by including in the smart meter reader a means that sums all long unit-of-time energy consumption quantities received from each smart meter over a billing period, making the data compatible with conventional KWHs meter readings.

5. System as recited in claim 1 wherein the system includes a means for transferring information between a smart meter and a moving, over-the-road, smart-meter reader using overhead consumer power feedlines which are made into a more efficient RF radiating element by RF short circuiting all hot feed wires to each other at the meter end, and by breaking the actual-ground connection to ground side of said power feedline and inserting a parallel RF resonant circuit in series with the restored ground connection, and by transmitting and receiving radio signals via an input/output terminal comprised of said RF short circuited hot feedwires and actual ground.

6. A smart meter adapter which converts existing watt-hour meters into smart meters, is comprised of:

means to count rotations of a spinning disc over long unit-of-time intervals

means for storing long unit-of-time energy consumption counts in sequential order over an entire billing period;

means for indicating cumulative time per billing cycle that available AC voltage level was unacceptable;

means for identifying a customer connected with each smart meter;

means for storing and reading out choice-of-supplier code,

means for erasing &

replacing said choice-of-supplier'"'"'s code when so directed by a meter-reader, said meter reader also transmits new choice-of-supplier code to a designated smart meter on premises of a customer requesting a new supplier;

means for transferring all stored smart meter information to a smart-meter reader, said transfer being triggered by receipt of correctly addressed request to execute.

7. Smart meter adapter as recited in claim 6 wherein a capability of said smart meter to support near real time load balancing is incorporated, said capability is comprised of:

means to generate short unit-of-time running count numbers that register at the end of every short time interval, said numbers indicating energy consumption over short unit-of-time intervals,

means for joining choice-of-supplier code to each said short-unit-of-time energy number, thus forming demand messages; and

means for continuously transferring said demand messages from the smart meter'"'"'s location to a remote terminal.

8. Smart meter adapter as recited in claim 6 wherein means for determining by how much, over a billing cycle, the energy consumption exceeded a given maximum during any 15 minute interval, is incorporated into said smart meter'"'"'s functions.

9. Method for providing fault detection and fault localization in a system consisting of a plurality of smart meters, remote terminals, and a common transmission-line, is comprised of the following steps;

receiving a sample of demand-messages coming from customers spread along said transmission-line;

detecting any discontinuities in what would normally be a continuous series of demand-messages;

identifying the discontinuity type, which would define the nature of the fault;

identifying the time slot in which said discontinuity first appeared, as a first step in localizing said fault; and

associating every said time slot with a street address through a listing, and picking out the address co-listed with said time slot to complete the fault localization.

10. Method for converting an existing electro mechanical watt-hour meter into a smart meter, comprising the steps of:

inserting means for electronically marking each spinning disc rotation with a pulse;

counting said pulses over predetermined long and short time intervals;

transferring each said long interval count to a buffer memory where each count is stored in sequence, for an entire billing cycle;

combining each said short-interval count number with a customer choice-of-supplier'"'"'s code, said combination becoming a demand message, said choice-of-supplier code is stored in an EEPROM (electronically erasible programmable read only memory), and said demand message is modulated onto an RF carrier that propogates on 60 Hz wiring to reach a remote terminal;

sensing and accumulating power outage duration time over a billing cycle;

transferring out accumulated long interval counts, said long counts being readout to a smart meter reader in the reverse sequence that they were originally read-in, with consumer'"'"'s ID, and power outage time, said transfer being executed by radio signals received and transmitted between the meter reader and the smart meter; and

erasing and inserting a new choice-of-supplier code into said EEPROM when so indicated by the meter reader.