CN108279331B - 一种光伏逆变器绝缘阻抗检测电路及方法 - Google Patents
一种光伏逆变器绝缘阻抗检测电路及方法 Download PDFInfo
- Publication number
- CN108279331B CN108279331B CN201810234079.2A CN201810234079A CN108279331B CN 108279331 B CN108279331 B CN 108279331B CN 201810234079 A CN201810234079 A CN 201810234079A CN 108279331 B CN108279331 B CN 108279331B
- Authority
- CN
- China
- Prior art keywords
- voltage value
- relay
- sampling resistor
- signal
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 41
- 239000003990 capacitor Substances 0.000 claims abstract description 27
- 101100004933 Arabidopsis thaliana CYP79F1 gene Proteins 0.000 claims description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810234079.2A CN108279331B (zh) | 2018-03-21 | 2018-03-21 | 一种光伏逆变器绝缘阻抗检测电路及方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810234079.2A CN108279331B (zh) | 2018-03-21 | 2018-03-21 | 一种光伏逆变器绝缘阻抗检测电路及方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108279331A CN108279331A (zh) | 2018-07-13 |
CN108279331B true CN108279331B (zh) | 2023-11-10 |
Family
ID=62810140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810234079.2A Active CN108279331B (zh) | 2018-03-21 | 2018-03-21 | 一种光伏逆变器绝缘阻抗检测电路及方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108279331B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111505381A (zh) * | 2020-05-12 | 2020-08-07 | 爱士惟新能源技术(江苏)有限公司 | 一种用于非隔离光伏逆变器的绝缘阻抗检测电路及方法 |
CN114563674B (zh) * | 2022-04-24 | 2022-07-22 | 杭州华塑科技股份有限公司 | 一种应用于储能***的绝缘检测装置及方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202994907U (zh) * | 2012-12-14 | 2013-06-12 | 常熟开关制造有限公司(原常熟开关厂) | 光伏逆变器绝缘阻抗检测*** |
CN203037745U (zh) * | 2012-12-24 | 2013-07-03 | 江苏兆伏新能源有限公司 | 双路光伏输入的绝缘阻抗检测电路 |
CN103323674A (zh) * | 2013-05-21 | 2013-09-25 | 江苏宝丰新能源科技有限公司 | 光伏并网逆变器的对地绝缘阻抗的实时检测电路和检测方法 |
CN204044246U (zh) * | 2013-12-03 | 2014-12-24 | 武汉新能源接入装备与技术研究院有限公司 | 一种光伏发电***的方阵绝缘阻抗检测*** |
CN104702208A (zh) * | 2015-02-10 | 2015-06-10 | 武汉武新电气科技股份有限公司 | 大功率光伏逆变器的光伏方阵对地绝缘阻抗在线检测*** |
CN205081758U (zh) * | 2015-11-17 | 2016-03-09 | 江苏固德威电源科技股份有限公司 | 多路mppt输入光伏逆变器的绝缘阻抗检测装置 |
CN205280825U (zh) * | 2015-12-25 | 2016-06-01 | 天津科林电气有限公司 | 一种用于并网逆变器方阵的绝缘阻抗检测电路 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202015009364U1 (de) * | 2015-02-18 | 2017-04-06 | Sma Solar Technology Ag | Vorrichtung zur Isolationswiderstandsbestimmung an einem PV-Generator und Photovoltaikanlage |
CN107305224A (zh) * | 2016-04-19 | 2017-10-31 | 台达电子企业管理(上海)有限公司 | 光伏逆变器的绝缘阻抗检测电路、检测方法及光伏逆变器 |
-
2018
- 2018-03-21 CN CN201810234079.2A patent/CN108279331B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202994907U (zh) * | 2012-12-14 | 2013-06-12 | 常熟开关制造有限公司(原常熟开关厂) | 光伏逆变器绝缘阻抗检测*** |
CN203037745U (zh) * | 2012-12-24 | 2013-07-03 | 江苏兆伏新能源有限公司 | 双路光伏输入的绝缘阻抗检测电路 |
CN103323674A (zh) * | 2013-05-21 | 2013-09-25 | 江苏宝丰新能源科技有限公司 | 光伏并网逆变器的对地绝缘阻抗的实时检测电路和检测方法 |
CN204044246U (zh) * | 2013-12-03 | 2014-12-24 | 武汉新能源接入装备与技术研究院有限公司 | 一种光伏发电***的方阵绝缘阻抗检测*** |
CN104702208A (zh) * | 2015-02-10 | 2015-06-10 | 武汉武新电气科技股份有限公司 | 大功率光伏逆变器的光伏方阵对地绝缘阻抗在线检测*** |
CN205081758U (zh) * | 2015-11-17 | 2016-03-09 | 江苏固德威电源科技股份有限公司 | 多路mppt输入光伏逆变器的绝缘阻抗检测装置 |
CN205280825U (zh) * | 2015-12-25 | 2016-06-01 | 天津科林电气有限公司 | 一种用于并网逆变器方阵的绝缘阻抗检测电路 |
Also Published As
Publication number | Publication date |
---|---|
CN108279331A (zh) | 2018-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3988947A1 (en) | Circuit and method for detecting insulation resistance of photovoltaic array to ground, and photovoltaic inverter | |
KR950004624A (ko) | 팩전지 | |
CN110729964B (zh) | 一种光伏***及其光伏组件 | |
TW201802482A (zh) | 電源轉換裝置及對地阻抗值偵測方法 | |
CN108279331B (zh) | 一种光伏逆变器绝缘阻抗检测电路及方法 | |
CN103646805A (zh) | 一种直流断路器拓扑 | |
CN102983556A (zh) | 具有放电过流保护后自恢复功能的电池保护电路 | |
CN206727643U (zh) | 一种欠压及过压保护电路 | |
CN209963748U (zh) | 光伏并网逆变器 | |
CN102570931A (zh) | 一种电源极性转换电路 | |
CN111474409A (zh) | 用于非隔离光伏逆变器的绝缘阻抗检测电路及方法 | |
CN210639219U (zh) | 一种光伏逆变器绝缘阻抗检测电路 | |
CN205231727U (zh) | 开关电源输出接电池反接保护自动控制电路 | |
CN108336722B (zh) | 并联浪涌抑制电路 | |
CN212275845U (zh) | 一种用于非隔离光伏逆变器的绝缘阻抗检测电路 | |
CN110571919B (zh) | 一种双电源切换分配器 | |
CN207380466U (zh) | 提高正极、负极以及正极与负极线路导通可靠性的控制*** | |
CN111896854A (zh) | 一种投切电路及直流***绝缘检测装置和方法 | |
CN111505381A (zh) | 一种用于非隔离光伏逆变器的绝缘阻抗检测电路及方法 | |
CN202512448U (zh) | 基于接触器的液位自动控制器 | |
CN103474969A (zh) | 一种光伏组件的接地故障检测保护电路 | |
CN212275846U (zh) | 用于非隔离光伏逆变器的绝缘阻抗检测电路 | |
CN203617697U (zh) | 一种光伏组件的接地故障检测保护电路 | |
CN213072097U (zh) | 一种母线电解电容保护电路 | |
CN104678759A (zh) | 一种主从控制器电路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20190325 Address after: 215000 Factory Building No. 1989 Xiangyang Road, Suzhou High-tech Zone, Jiangsu Province Applicant after: Esway new energy technology (Jiangsu) Co.,Ltd. Address before: 215011 No. 78 Keling Road, Suzhou High-tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU HIGH-TECH ZONE BRANCH, SMA NEW ENERGY TECHNOLOGY (SHANGHAI) CO.,LTD. |
|
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 200000 room 905b, 757 Mengzi Road, Huangpu District, Shanghai Applicant after: Asway Technology (Shanghai) Co.,Ltd. Address before: 215000 Factory Building No. 1989 Xiangyang Road, Suzhou High-tech Zone, Jiangsu Province Applicant before: Esway new energy technology (Jiangsu) Co.,Ltd. |
|
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 200000 room 905b, 757 Mengzi Road, Huangpu District, Shanghai Applicant after: Esway Technology (Shanghai) Co.,Ltd. Address before: 200000 room 905b, 757 Mengzi Road, Huangpu District, Shanghai Applicant before: Asway Technology (Shanghai) Co.,Ltd. Address after: 200000 room 905b, 757 Mengzi Road, Huangpu District, Shanghai Applicant after: Elsevier Technology Co.,Ltd. Address before: 200000 room 905b, 757 Mengzi Road, Huangpu District, Shanghai Applicant before: Esway Technology (Shanghai) Co.,Ltd. |
|
GR01 | Patent grant | ||
GR01 | Patent grant |