# US 2019/0157868 A1 · Phase compensation system

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- Number: US 2019/0157868 A1
- Document ID: US20190157868A1
- Status: Published application
- Kind: A1
- Application number: 16/234,754
- Filed: 2018-12-28
- Published: 2019-05-23
- Earliest claimed: 2015-08-16
- Assignees: Phasor Ltd
- Inventors: Oren TAMIR
- Web page: https://patentgrep.com/patent/US20190157868A1

## CPC

- G05F 1/66: Regulating electric power
- G05B 19/0425: {Safety, monitoring}
- G06Q 10/0631: Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q 50/06: Energy or water supply
- H02J 3/1814: having reactive elements actively controlled by bridge converters, e.g. unified power flow controllers [UPFC] or controlled series voltage compensators
- H02J 3/1878: using tap changing or phase shifting transformers
- H02J 3/26: Arrangements for eliminating or reducing asymmetry in polyphase networks
- H02J 3/381: {Dispersed generators}
- H02J 13/1311: {using the power network as support for the transmission}
- H02J 3/003: {Load forecast, e.g. methods or systems for forecasting future load demand}
- Y02B 70/3225: Demand response systems, e.g. load shedding, peak shaving
- Y02E 40/50: Arrangements for eliminating or reducing asymmetry in polyphase networks
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y04S 20/222: Demand response systems, e.g. load shedding, peak shaving
- Y04S 40/121: using the power network as support for the transmission
- G05F: SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

Systems and methods are provided for a three-phase compensation system, whereby an electric circuit is configured to be connected with three input phases of a power source and to supply three respective output phases, said electric circuit further configured to compensate for one or two malfunctioning input phases of said three input phases by supplying current from a functioning input phase of said three input phases to replace a malfunctioning input phase.

## Claims

### Claim 1

A three-phase compensation system, comprising:
an electric circuit configured to receive three input phases of a three phase power source from which to supply three respective output phases, said electric circuit further configured to compensate for one or two malfunctioning input phases of said three input phases by supplying current from at least one of functioning input phase of said three input phases to compensate for the one or two malfunctioning input phases, wherein said electric circuit comprises first, second and third control relays connected with each other, each comprising first and second normally open in-contacts, first and second normally open out-contacts, first and second normally close in-contacts, first and second normally close out-contacts, a control in-contact and a control out-contact.

### Claim 2 (depends on 1)

The three-phase compensation system of claim 1, wherein a first phase-in is connected with said first control relay control in-contact and with said first control relay first normally open in-contact; said first control relay first normally open out-contact is connected with said first control relay second normally open in-contact; said first control relay second normally open in-contact is connected with said third control relay first normally close in-contact; said first control relay first normally close in-contact is connected with said second control relay second normally open in-contact; said first control relay second normally close in-contact is connected with said second control relay second normally close out-contact, with said second control relay first normally close out-contact and with said second control relay second normally open out-contact; said first control relay second normally open out-contact is connected with a first phase-out, with said first control relay first normally close out-contact, with said first control relay second normally close out-contact and with said third control relay second normally close in-contact; said second control relay second normally open out-contact is connected with a second phase-out; a second phase-in is connected with said second control relay control in-contact and with said second control relay first normally open in-contact; said second control relay first normally open out-contact is connected with said second control relay second normally open in-contact; said second control relay first normally close in-contact is connected with said third control relay second normally open in-contact; said second control relay second normally close in-contact is connected with said third control relay second normally close out-contact, with said third control relay first normally close out-contact and with said third control relay second normally open out-contact; said third control relay second normally open out-contact is connected with a third phase-out; a third phase-in is connected with said third control relay control in-contact and with said third control relay first normally open in-contact; said third control relay first normally open out-contact is connected with said third control relay second normally open in-contact; said first control relay control out-contact is connected with said second control relay control out-contact, with said third control relay control out-contact and with neutral.

### Claim 3 (depends on 1)

The three-phase compensation system of claim 1, wherein a first phase-in is connected with said first control relay control in-contact and with said first control relay second normally open in-contact; said first control relay first normally open out-contact is connected with said first control relay second normally open out-contact, with said first control relay first normally close out-contact and with said first control relay second normally close out-contact; said first control relay first normally open in-contact is connected with said third control relay first normally close in-contact; said first control relay first normally close in-contact is connected with said second control relay first normally open in-contact; said first control relay second normally close in-contact is connected with said second control relay second normally close out-contact, with said second control relay first normally close out-contact, with said second control relay first normally open out-contact and with said second control relay second normally open out-contact; said first control relay second normally open out-contact is connected with a first phase-out and with said third control relay second normally close in-contact; said second control relay second normally open out-contact is connected with a second phase-out; a second phase-in is connected with said second control relay control in-contact and with said second control relay second normally open in-contact; said second control relay first normally close in-contact is connected with said third control relay first normally open in-contact; said second control relay second normally close in-contact is connected with said third control relay second normally close out-contact, with said third control relay first normally close out-contact, with said third control relay first normally open out-contact and with said third control relay second normally open out-contact; said third control relay second normally open out-contact is connected with a third phase-out; a third phase-in is connected with said third control relay control in-contact and with said third control relay second normally open in-contact; said first control relay control out-contact is connected with said second control relay control out-contact, with said third control relay control out-contact and with neutral.

### Claim 4

A method of compensating for a lost phase of a three phase-power source, comprising providing a three-phase compensation system, comprising:
an electric circuit comprising first, second and third control relays connected with each other, configured to receive three phases of the three-phase power source, one to each of said first, second and third control relays respectively, and to compensate for a a malfunctioning of one of said three phases that does not supply current to its respective control relay, by supplying current to the respective control relay from one of the other two control relays.

### Claim 5 (depends on 4)

The method of claim 4, said first, second and third control relays each comprising first and second normally open in-contacts, first and second normally open out-contacts, first and second normally close in-contacts, first and second normally close out-contacts, a control in-contact and a control out-contact.

### Claim 6 (depends on 5)

The method of claim 5, wherein a first phase-in is connected with said first control relay control in-contact and with said first control relay first normally open in-contact; said first control relay first normally open out-contact is connected with said first control relay second normally open in-contact; said first control relay second normally open in-contact is connected with said third control relay first normally close in-contact;
said first control relay first normally close in-contact is connected with said second control relay second normally open in-contact; said first control relay second normally close in-contact is connected with said second control relay second normally close out-contact, with said second control relay first normally close out-contact and with said second control relay second normally open out-contact; said first control relay second normally open out-contact is connected with a first phase-out, with said first control relay first normally close out-contact, with said first control relay second normally close out-contact and with said third control relay second normally close in-contact; said second control relay second normally open out-contact is connected with a second phase-out; a second phase-in is connected with said second control relay control in-contact and with said second control relay first normally open in-contact; said second control relay first normally open out-contact is connected with said second control relay second normally open in-contact; said second control relay first normally close in-contact is connected with said third control relay second normally open in-contact; said second control relay second normally close in-contact is connected with said third control relay second normally close out-contact, with said third control relay first normally close out-contact and with said third control relay second normally open out-contact; said third control relay second normally open out-contact is connected with a third phase-out; a third phase-in is connected with said third control relay control in-contact and with said third control relay first normally open in-contact; said third control relay first normally open out-contact is connected with said third control relay second normally open in-contact; said first control relay control out-contact is connected with said second control relay control out-contact, with said third control relay control out-contact and with neutral.

### Claim 7 (depends on 6)

The method of claim 6, wherein a first phase-in is connected with said first control relay control in-contact and with said first control relay second normally open in-contact; said first control relay first normally open out-contact is connected with said first control relay second normally open out-contact, with said first control relay first normally close out-contact and with said first control relay second normally close out-contact; said first control relay first normally open in-contact is connected with said third control relay first normally close in-contact; said first control relay first normally close in-contact is connected with said second control relay first normally open in-contact; said first control relay second normally close in-contact is connected with said second control relay second normally close out-contact, with said second control relay first normally close out-contact, with said second control relay first normally open out-contact and with said second control relay second normally open out-contact; said first control relay second normally open out-contact is connected with a first phase-out and with said third control relay second normally close in-contact; said second control relay second normally open out-contact is connected with a second phase-out; a second phase-in is connected with said second control relay control in-contact and with said second control relay second normally open in-contact; said second control relay first normally close in-contact is connected with said third control relay first normally open in-contact; said second control relay second normally close in-contact is connected with said third control relay second normally close out-contact, with said third control relay first normally close out-contact, with said third control relay first normally open out-contact and with said third control relay second normally open out-contact; said third control relay second normally open out-contact is connected with a third phase-out; a third phase-in is connected with said third control relay control in-contact and with said third control relay second normally open in-contact; said first control relay control out-contact is connected with said second control relay control out-contact, with said third control relay control out-contact and with neutral.

### Claim 8

A method of compensating for a lost phase of a three-phase power source, comprising:
providing a three-phase compensation system, comprising:
an electric circuit comprising first, second and third control relays connected with each other; said electric circuit configured to receive three phases of the three-phase power source, one to each of said first, second and third control relays respectively, and to compensate for a malfunctioning of two of said three phases that do not supply current to their respective control relays, by supplying current to the two respective control relays from the remaining control relay.

### Claim 9 (depends on 8)

The method of claim 8, said first, second and third control relays each comprising first and second normally open in-contacts, first and second normally open out-contacts, first and second normally close in-contacts, first and second normally close out-contacts, a control in-contact and a control out-contact.

### Claim 10 (depends on 9)

The method of claim 9, wherein a first phase-in is connected with said first control relay control in-contact and with said first control relay first normally open in-contact; said first control relay first normally open out-contact is connected with said first control relay second normally open in-contact; said first control relay second normally open in-contact is connected with said third control relay first normally close in-contact;
said first control relay first normally close in-contact is connected with said second control relay second normally open in-contact; said first control relay second normally close in-contact is connected with said second control relay second normally close out-contact, with said second control relay first normally close out-contact and with said second control relay second normally open out-contact; said first control relay second normally open out-contact is connected with a first phase-out, with said first control relay first normally close out-contact, with said first control relay second normally close out-contact and with said third control relay second normally close in-contact; said second control relay second normally open out-contact is connected with a second phase-out; a second phase-in is connected with said second control relay control in-contact and with said second control relay first normally open in-contact; said second control relay first normally open out-contact is connected with said second control relay second normally open in-contact; said second control relay first normally close in-contact is connected with said third control relay second normally open in-contact; said second control relay second normally close in-contact is connected with said third control relay second normally close out-contact, with said third control relay first normally close out-contact and with said third control relay second normally open out-contact; said third control relay second normally open out-contact is connected with a third phase-out; a third phase-in is connected with said third control relay control in-contact and with said third control relay first normally open in-contact; said third control relay first normally open out-contact is connected with said third control relay second normally open in-contact; said first control relay control out-contact is connected with said second control relay control out-contact, with said third control relay control out-contact and with neutral.

### Claim 11 (depends on 9)

The method of claim 9, wherein a first phase-in is connected with said first control relay control in-contact and with said first control relay second normally open in-contact; said first control relay first normally open out-contact is connected with said first control relay second normally open out-contact, with said first control relay first normally close out-contact and with said first control relay second normally close out-contact; said first control relay first normally open in-contact is connected with said third control relay first normally close in-contact; said first control relay first normally close in-contact is connected with said second control relay first normally open in-contact; said first control relay second normally close in-contact is connected with said second control relay second normally close out-contact, with said second control relay first normally close out-contact, with said second control relay first normally open out-contact and with said second control relay second normally open out-contact; said first control relay second normally open out-contact is connected with a first phase-out and with said third control relay second normally close in-contact; said second control relay second normally open out-contact is connected with a second phase-out; a second phase-in is connected with said second control relay control in-contact and with said second control relay second normally open in-contact; said second control relay first normally close in-contact is connected with said third control relay first normally open in-contact; said second control relay second normally close in-contact is connected with said third control relay second normally close out-contact, with said third control relay first normally close out-contact, with said third control relay first normally open out-contact and with said third control relay second normally open out-contact; said third control relay second normally open out-contact is connected with a third phase-out; a third phase-in is connected with said third control relay control in-contact and with said third control relay second normally open in-contact; said first control relay control out-contact is connected with said second control relay control out-contact, with said third control relay control out-contact and with neutral.