# US 10,372,101 B2 · Station auxiliary power source apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,372,101 B2 - Document ID: US10372101B2 - Status: Granted - Kind: B2 - Application number: 14/909,895 - Filed: 2013-08-08 - Published: 2016-06-09 - Granted: 2019-08-06 - Earliest claimed: 2013-08-08 - Assignees: Mitsubishi Electric Corporation - Applicants: Mitsubishi Electric Corporation - Inventors: Mitsushi Tominaga; Shinichi Matsumoto; Shuji Ishikura - Web page: https://patentgrep.com/patent/US10372101B2 ## CPC - G05B 19/106: {for selecting a program, variable or parameter} - B60L 1/003: {to auxiliary motors, e.g. for pumps, compressors} - B60L 7/14: for vehicles propelled by AC motors - B60L 9/18: fed from DC supply lines - B60L 50/51: characterised by AC-motors - B60L 53/63: in response to network capacity - B60L 55/00: Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements - B60M 3/06: Arrangements for consuming regenerative power - B60L 2200/26: Rail vehicles - B60L 2240/34: Cabin temperature - B60L 2240/527: Voltage - B60L 2240/529: Current - B60L 2250/16: by display - G05B 2219/2639: Energy management, use maximum of cheap power, keep peak load low - Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/12: Electric charging stations - Y02T 90/14: Plug-in electric vehicles - Y02T 90/16: Information or communication technologies improving the operation of electric vehicles - Y04S 10/126: the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G] - 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) - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60M: POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES (control of points and safety arrangements along railway lines B61L; construction of rails and points in general E01B) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - 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 The present invention relates to a station auxiliary power source apparatus that converts power supplied from an overhead cable to generate power to be supplied to a load in a station. The station auxiliary power source apparatus includes a first average calculation unit that calculates the average value of the overhead cable voltage for every predetermined time period; a second average calculation unit that calculates, two or more times, an average value of the overhead cable voltage that is larger than a first average value of the average value among the overhead cable voltages; a third average calculation unit that calculates an average value of the overhead cable voltage per day; and a comparator that selects any one of a second average value of the average value and a third average value of the average value and sets the selected value as the threshold value. ## Claims ### Claim 1 A station auxiliary power source apparatus that converts power supplied from an overhead cable to power to be supplied to a load in a station, the station auxiliary power source apparatus comprising: a control device including: a first calculator to calculate a plurality of first average values of an overhead cable voltage, wherein each of the plurality of first average values of the overhead cable voltage is calculated over a first predetermined period of time, a second calculator to calculate, over a second predetermined period of time, a second average value being an average value of values, from the calculated plurality of first average values of the overhead cable voltage, that are larger than an average value of the calculated plurality of first average values, and a third calculator to to calculate a third average value being an average value of the overhead cable voltage per day; and a comparator to select any one of the second average value and the third average value, and set the selected value as a threshold value, wherein the station auxiliary power source apparatus converts the power supplied from the overhead cable to the power to be supplied to the load when the overhead cable voltage is higher than the selected threshold value. ### Claim 2 (depends on 1) The station auxiliary power source apparatus according to claim 1, wherein the first, the second, and the third average values are respectively calculated by the control device for each day to which the same type of daily schedule is implemented, and the comparator selects the second average value or the third average value corresponding to a daily schedule implemented when the selection is performed. ### Claim 3 (depends on 1) The station auxiliary power source apparatus according to claim 1, wherein the comparator selects whichever is a larger value from the second average value and the third average value as the selected threshold value. ### Claim 4 (depends on 1) The station auxiliary power source apparatus according to claim 1, wherein an output voltage from an electric power substation to the overhead cable is used for the third average value. ### Claim 5 (depends on 4) The station auxiliary power source apparatus according to claim 4, wherein the control device calculates the respective average values for each day to which the same type of daily schedule is implemented, and the comparator selects: the second average value corresponding to the schedule implemented when the selection is performed, or the output voltage from the electric power substation to the overhead cable. ### Claim 6 (depends on 4) The station auxiliary power source apparatus according to claim 4, wherein the comparator selects whichever is a larger value from the second average value and the output voltage from the electric power substation to the overhead cable as the selected threshold value. ### Claim 7 (depends on 1) The station auxiliary power source apparatus according to claim 1, further comprising an inverter that receives a control signal based on the selected threshold value, and converts the power supplied from the overhead cable to the power to be supplied to the load based on the received control signal. ### Claim 8 (depends on 7) The station auxiliary power source apparatus according to claim 7, wherein responsive to receiving the control signal, the inverter starts the conversion of the power supplied from the overhead cable to the power to be supplied to the load responsive to the overhead cable voltage being greater than the selected threshold value. ### Claim 9 (depends on 1) The station auxiliary power source apparatus according to claim 1, wherein the station auxiliary power source apparatus starts the conversion of the power supplied from the overhead cable to the power to be supplied to the load responsive to the overhead cable voltage being greater than the selected threshold value.