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Title:
POWER CONVERSION DEVICE
Document Type and Number:
Japanese Patent JP2016025756
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power conversion device capable of solving a problem that supply of generated power to an electric power system is disturbed due to response delay of a control system when the system voltage varies under the state that the amount of generated power is constant during the control of supplying generated power of a dispersion type power source to an interconnected power system.SOLUTION: A correction unit for correcting an effective current instruction is provide at the output side of a voltage controller equipped to a control device of a power conversion device. The control device is provided with a power calculator for calculating effective power from detected voltage and current of a power system, subjecting the effective power to the same normalization as the effective current instruction and then outputting the normalized effective power as detected effective current to the correction unit. The correction unit is configured to correct the effective current instruction by using the input detected effective current as a correction term.SELECTED DRAWING: Figure 1

Inventors:
DOI KEIICHIRO
Application Number:
JP2014148428A
Publication Date:
February 08, 2016
Filing Date:
July 22, 2014
Export Citation:
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Assignee:
MEIDENSHA ELECTRIC MFG CO LTD
International Classes:
H02J3/38; G05F1/67; H02M7/48
Domestic Patent References:
JP2015192477A2015-11-02
JP2015100224A2015-05-28
JP2002281670A2002-09-27
JPH02281310A1990-11-19
Foreign References:
WO2012098769A12012-07-26
Attorney, Agent or Firm:
Hiromichi Kobayashi
Uzawa Hidehisa