Household photovoltaic system and smart micro-grid system
View Patent ↗The present disclosure provides a household photovoltaic system and a smart micro-grid system. The household photovoltaic system includes a photovoltaic assembly module, a household photovoltaic inverter and an AC grid. The household photovoltaic system further includes a monitoring assembly and a wireless communication assembly. The monitoring assembly includes DC-side monitoring assemblies each configured to monitor an operating parameter of an output end of the photovoltaic assembly module, and AC-side monitoring assemblies each configured to monitor an operating parameter of an output end of the household photovoltaic inverter. The wireless communication assembly includes a DC-side wireless communication assembly and an AC-side wireless communication assembly which are configured to transmit the operating parameters monitored by each DC-side monitoring assembly and each AC-side monitoring assembly to a predetermined monitoring terminal.
1. A household photovoltaic system, comprising a photovoltaic assembly module, a household photovoltaic inverter and an alternating current (AC) grid, wherein
the household photovoltaic system further comprises a monitoring assembly and a wireless communication assembly;
the monitoring assembly comprises direct current (DC)-side monitoring assemblies each configured to monitor an operating parameter of an output end of the photovoltaic assembly module, and AC-side monitoring assemblies each configured to monitor an operating parameter of an output end of the household photovoltaic inverter; and
the wireless communication assembly comprises a DC-side wireless communication assembly configured to transmit the operating parameter monitored by each DC-side monitoring assembly to a predetermined monitoring terminal, and an AC-side wireless communication assembly configured to transmit the operating parameter monitored by each AC-side monitoring assembly to the predetermined monitoring terminal.
2. The household photovoltaic system according to claim 1 , wherein the DC-side wireless communication assembly comprises one Zigbee central node and several Zigbee remote nodes;
each Zigbee remote node is configured to receive monitoring data transmitted by the DC-side monitoring assemblies within a first predetermined range in accordance with a predetermined period, and transmit the received monitoring data to the Zigbee central node in a remote wireless communication mode; and
the Zigbee central node is configured to receive monitoring data from the Zigbee remote nodes within a second predetermined range, and transmit the received monitoring data to the monitoring terminal.
3. The household photovoltaic system according to claim 1 , wherein the AC-side wireless communication assembly comprises one Zigbee central node and several Zigbee remote nodes;
each Zigbee remote node is configured to receive monitoring data transmitted by the AC-side monitoring assemblies within a first predetermined range in accordance with a predetermined period, and transmit the received monitoring data to the Zigbee central node in a remote wireless communication mode; and
the Zigbee central node is configured to receive monitoring data from the Zigbee remote nodes within a second predetermined range, and transmit the received monitoring data to the monitoring terminal.
4. The household photovoltaic system according to claim 1 , wherein the monitoring assembly further comprises ammeter-side monitoring assemblies each configured to monitor an operating parameter of a predetermined grid-access ammeter, and the wireless communication assembly further comprises an ammeter-side wireless communication assembly configured to transmit the operating parameter monitored by each ammeter-side monitoring assembly to the monitoring terminal.
5. The household photovoltaic system according to claim 4 , wherein the ammeter-side wireless communication assembly comprises one Zigbee central node and several Zigbee remote nodes;
each Zigbee remote node is configured to receive monitoring data transmitted by the ammeter-side monitoring assemblies within a first predetermined range in accordance with a predetermined period, and transmit the received monitoring data to the Zigbee central node in a remote wireless communication mode; and
the Zigbee central node is configured to receive monitoring data from the Zigbee remote nodes within a second predetermined range, and transmit the received monitoring data to the monitoring terminal.
6. The household photovoltaic system according to claim 2 , wherein the first predetermined range is a range having a radius of 1 to 500 m, with each Zigbee remote node as a center.
7. The household photovoltaic system according to claim 2 , wherein the second predetermined range is a range having a radius of 1 to 5 km, with the Zigbee central node as a center.
8. The household photovoltaic system according to claim 2 , wherein the remote wireless communication mode is a General Packet Radio Service (GPRS) and/or Code Division Multiple Access (CDMA) remote wireless communication mode.
9. The household photovoltaic system according to claim 1 , wherein the monitoring terminal is an upper computer and/or a handheld smart device.
10. A smart micro-grid system, comprising a direct current (DC) micro-grid system, a household photovoltaic inverter and an alternating current (AC) grid, wherein
the smart micro-grid system further comprises a monitoring assembly and a wireless communication assembly;
the monitoring assembly comprises DC-side monitoring assemblies each configured to monitor an operating parameter of an output end of the DC micro-grid system, and AC-side monitoring assemblies each configured to monitor an operating parameter of an output end of the household photovoltaic inverter; and
the wireless communication assembly comprises a DC-side wireless communication assembly configured to transmit the operating parameter monitored by each DC-side monitoring assembly to a predetermined monitoring terminal, and an AC-side wireless communication assembly configured to transmit the operating parameter monitored by each AC-side monitoring assembly to the predetermined monitoring terminal.
11. The smart micro-grid system according to claim 10 , wherein the DC-side wireless communication assembly comprises one Zigbee central node and several Zigbee remote nodes;
each Zigbee remote node is configured to receive monitoring data transmitted by the DC-side monitoring assemblies within a first predetermined range in accordance with a predetermined period, and transmit the received monitoring data to the Zigbee central node in a remote wireless communication mode; and
the Zigbee central node is configured to receive monitoring data from the Zigbee remote nodes within a second predetermined range, and transmit the received monitoring data to the monitoring terminal.
12. The smart micro-grid system according to claim 10 , wherein the AC-side wireless communication assembly comprises one Zigbee central node and several Zigbee remote nodes;
each Zigbee remote node is configured to receive monitoring data transmitted by the AC-side monitoring assemblies within a first predetermined range in accordance with a predetermined period, and transmit the received monitoring data to the Zigbee central node in a remote wireless communication mode; and
the Zigbee central node is configured to receive monitoring data from the Zigbee remote nodes within a second predetermined range, and transmit the received monitoring data to the monitoring terminal.
13. The smart micro-grid system according to claim 10 , wherein the monitoring assembly further comprises ammeter-side monitoring assemblies each configured to monitor an operating parameter of a predetermined grid-access ammeter, and the wireless communication assembly further comprises an ammeter-side wireless communication assembly configured to transmit the operating parameter monitored by each ammeter-side monitoring assembly to the monitoring terminal.
14. The smart micro-grid system according to claim 13 , wherein the ammeter-side wireless communication assembly comprises one Zigbee central node and several Zigbee remote nodes;
each Zigbee remote node is configured to receive monitoring data transmitted by the ammeter-side monitoring assemblies within a first predetermined range in accordance with a predetermined period, and transmit the received monitoring data to the Zigbee central node in a remote wireless communication mode; and
the Zigbee central node is configured to receive monitoring data from the Zigbee remote nodes within a second predetermined range, and transmit the received monitoring data to the monitoring terminal.
15. The smart micro-grid system according to claim 11 , wherein the first predetermined range is a range having a radius of 1 to 500 m, with each Zigbee remote node as a center.
16. The smart micro-grid system according to claim 11 , wherein the second predetermined range is a range having a radius of 1 to 5 km, with the Zigbee central node as a center.
17. The smart micro-grid system according to claim 11 , wherein the remote wireless communication mode is a General Packet Radio Service (GPRS) and/or Code Division Multiple Access (CDMA) remote wireless communication mode.
18. The smart micro-grid system according to claim 11 , wherein the monitoring terminal is an upper computer and/or a handheld smart device.
19. The smart micro-grid system according to claim 10 , further comprising a micro-grid management system configured to manage the DC micro-grid system, to enable the DC micro-grid system to operate in a first predetermined operation mode.
20. The smart micro-grid system according to claim 19 , further comprising an AC grid management and scheduling system configured to manage the AC grid and/or the micro-grid management system, to enable the AC grid and/or the micro-grid management system to operate in a second predetermined operation mode.