SG11201810813VA - System and method for controlling an electrical load - Google Patents

Abstract

FIGW O 20 17 / 207 99 1 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 07 December 2017 (07.12.2017) WIP0 I PCT ill~~~~~~~~ 011101110VIIIVIIImmitimmiioinnio oimIE (10) International Publication Number WO 2017/207991 Al (51) International Patent Classification: H02J 3/14 (2006.01) (21) International Application Number: PCT/GB2017/051557 (22) International Filing Date: 31 May 2017 (31.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1609687.7 02 June 2016 (02.06.2016) GB (71) Applicant: OPEN ENERGI LIMITED [GB/GB]; Lin- coln House, 300 High Holborn, London WC1V 7JH (GB). (72) Inventors: COLEMAN, Toby John; C/O Open Ener- gi Limited, Lincoln House, 300 High Holborn, London Greater London WC1V 7JH (GB). GALSWORTHY, Stephen John; C/O Quby B.V., Joan Muyskenweg 22, 1096 CJ Amsterdam (NL). (74) Agent: WILLIAMS, Ceili et al.; STEVENS HEWLETT & PERKINS, 1 St Augustine's Place, Bristol Bristol BS1 4UD (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: SYSTEM AND METHOD FOR CONTROLLING AN ELECTRICAL LOAD (57) : A system and method for controlling a number of load controllers (10), each of which is operatively connected to one or more electrical loads (6) that are connected to a grid, results in a reduction in tracking errors, which arise when aggregated local devices fail to deliver the expected amount of responsive load service. Each load controller (10) monitors the operating frequency of the grid network (8) and is adapted to adjust power consumption of one or more of its electrical loads (6) in response to excursions of the operating network frequency from its nom- inal value. The load controllers (10) are in communication with a remote controller (14) and aggregated together to provide a responsive load ser- vice. The remote controller (14) is adapted to monitor the deviation of grid frequency from its nominal value and to determine adjustments to the responsive load service delivered by the electrical loads of each load controller. The remote controller (14) thereafter sends a correction signal to each load controller (10), which causes the respective load controller (10) to apply a correction to its responsive load service by way of an off- set to its power consumption adjustments.