Title:
PHOTOVOLTAIC INVERTER HIGH VOLTAGE RIDE THROUGH DETECTION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/231168
Kind Code:
A1
Abstract:
Disclosed in the present invention are a photovoltaic inverter high voltage ride through detection method and system. The photovoltaic inverter high voltage ride through detection method comprises: connecting a BTB circuit to a passive circuit in series, and connecting a circuit breaker to the passive circuit, so as to form an inverter detection apparatus; connecting one end of the inverter detection apparatus to an alternating current power supply, and connecting the other end of the inverter detection apparatus to a detected device; and adjusting parameters of the passive circuit and the switching mode of the circuit breaker by means of the BTB circuit to achieve detection. The present invention eliminates the influence of the detection apparatus on a power supply voltage, such that the detection device can be applied to a detection laboratory with relatively small power supply short-circuit capacity or strict power supply voltage requirements, and the application range of the detection apparatus is greatly expanded. Moreover, self-generation and self-use of reactive power are achieved during detection, the requirement for supply of the reactive power of a power supply is eliminated, and the electricity rate during detection is greatly reduced.
Inventors:
NIU CHENHUI (CN)
CAO QINGWEI (CN)
YAO ZHONGYUAN (CN)
BIAN FANG (CN)
CHEN XIAOLU (CN)
ZHANG YU (CN)
CAO QINGWEI (CN)
YAO ZHONGYUAN (CN)
BIAN FANG (CN)
CHEN XIAOLU (CN)
ZHANG YU (CN)
Application Number:
PCT/CN2022/108361
Publication Date:
December 07, 2023
Filing Date:
July 27, 2022
Export Citation:
Assignee:
HUANENG POWER INT JIANGSU ENERGY DEVELOPMENT CO LTD (CN)
HUANENG RUDONG BAXIANJIAO OFFSHORE WIND POWER GENERATION CO LTD (CN)
HUANENG YANCHENG DAFENG NEW ENERGY POWER GENERATION CO LTD (CN)
HUANENG JIANGSU ENERGY DEV CO LTD (CN)
HUANENG JIANGSU CLEAN ENERGY BRANCH (CN)
HUANENG RUDONG BAXIANJIAO OFFSHORE WIND POWER GENERATION CO LTD (CN)
HUANENG YANCHENG DAFENG NEW ENERGY POWER GENERATION CO LTD (CN)
HUANENG JIANGSU ENERGY DEV CO LTD (CN)
HUANENG JIANGSU CLEAN ENERGY BRANCH (CN)
International Classes:
G01R31/16; G01R31/00
Foreign References:
| CN203287500U | 2013-11-13 | |||
| CN105471389A | 2016-04-06 | |||
| CN111464042A | 2020-07-28 | |||
| CN106443268A | 2017-02-22 | |||
| CN108375730A | 2018-08-07 | |||
| CN105203890A | 2015-12-30 | |||
| CN103454521A | 2013-12-18 |
Attorney, Agent or Firm:
YUV (NANJING) INTELLECTUAL PROPERTY FIRM (SPECIAL GP) (CN)
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