Title:
ENERGY MANAGEMENT DEVICE FOR PHOTOVOLTAIC GRID-CONNECTED POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/185966
Kind Code:
A1
Abstract:
An energy management device (20) for a photovoltaic grid-connected power generation system. The photovoltaic grid-connected power generation system comprises a photovoltaic cell (11) and a grid-connected inverter (12), the photovoltaic cell being connected to a grid through the grid-connected inverter. The energy management device comprises: a rechargeable battery (21) and a bidirectional DC-DC converter (22), the rechargeable battery being connected to an input end of the grid-connected inverter through the bidirectional DC-DC converter; a first power measurement device (23) for measuring the output power of the photovoltaic cell; a second power measurement device (24) for measuring the electric power or the grid-connected power of the photovoltaic grid-connected power generation system; and a converter controller (25) for controlling the bi-directional DC-DC converter to manage the capacity of the rechargeable battery. The energy management device reduces the power consumption cost of a user.
Inventors:
HUANG HAO CHIEH (CN)
TSAI CHIA HAN (CN)
TSAI CHIA HAN (CN)
Application Number:
PCT/CN2017/079878
Publication Date:
November 02, 2017
Filing Date:
April 10, 2017
Export Citation:
Assignee:
EATON PHOENIXTEC MMLP CO LTD (CN)
International Classes:
H02J3/38; H02J3/06; H02J3/46
Foreign References:
| CN103138637A | 2013-06-05 | |||
| CN104283237A | 2015-01-14 | |||
| CN202712876U | 2013-01-30 | |||
| US6949843B2 | 2005-09-27 |
Attorney, Agent or Firm:
PANAWELL & PARTNERS, LLC (CN)
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