Load frequency control for rural distributed generation
In rural low-voltage networks, distribution lines are usually highly resistive. When many distributed generators are connected to such lines, power sharing among them is difficult when using conventional droop control, as the real and reactive power have strong coupling with each other. A high droop...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Taylor & Francis Inc.
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/28198 |
| _version_ | 1848752471657152512 |
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| author | Majumder, R. Ghosh, Arindam Ledwich, G. zare, F. |
| author_facet | Majumder, R. Ghosh, Arindam Ledwich, G. zare, F. |
| author_sort | Majumder, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In rural low-voltage networks, distribution lines are usually highly resistive. When many distributed generators are connected to such lines, power sharing among them is difficult when using conventional droop control, as the real and reactive power have strong coupling with each other. A high droop gain can alleviate this problem but may lead the system to instability. To overcome this, two droop controlmethods are proposed for accurate load sharing with frequency droop controller. The first method considers no communication among the distributed generators and regulates the output voltage and frequency, ensuring acceptable load sharing. The droop equations are modified with a transformation matrix based on the line R=X ratio for this purpose. The second proposed method, with minimal low bandwidth communication, modifies the reference frequency of the distributed generators based on the active and reactive power flow in the lines connected to the points of common coupling. The performance of these two proposed controllers is compared with that of a controller, which includes an expensive high bandwidth communication system through time-domain simulation of a test system. The magnitude of errors in power sharing between these three droop control schemes are evaluated andtabulated. |
| first_indexed | 2025-11-14T08:09:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-28198 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:09:09Z |
| publishDate | 2010 |
| publisher | Taylor & Francis Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-281982017-02-28T01:42:34Z Load frequency control for rural distributed generation Majumder, R. Ghosh, Arindam Ledwich, G. zare, F. In rural low-voltage networks, distribution lines are usually highly resistive. When many distributed generators are connected to such lines, power sharing among them is difficult when using conventional droop control, as the real and reactive power have strong coupling with each other. A high droop gain can alleviate this problem but may lead the system to instability. To overcome this, two droop controlmethods are proposed for accurate load sharing with frequency droop controller. The first method considers no communication among the distributed generators and regulates the output voltage and frequency, ensuring acceptable load sharing. The droop equations are modified with a transformation matrix based on the line R=X ratio for this purpose. The second proposed method, with minimal low bandwidth communication, modifies the reference frequency of the distributed generators based on the active and reactive power flow in the lines connected to the points of common coupling. The performance of these two proposed controllers is compared with that of a controller, which includes an expensive high bandwidth communication system through time-domain simulation of a test system. The magnitude of errors in power sharing between these three droop control schemes are evaluated andtabulated. 2010 Journal Article http://hdl.handle.net/20.500.11937/28198 Taylor & Francis Inc. restricted |
| spellingShingle | Majumder, R. Ghosh, Arindam Ledwich, G. zare, F. Load frequency control for rural distributed generation |
| title | Load frequency control for rural distributed generation |
| title_full | Load frequency control for rural distributed generation |
| title_fullStr | Load frequency control for rural distributed generation |
| title_full_unstemmed | Load frequency control for rural distributed generation |
| title_short | Load frequency control for rural distributed generation |
| title_sort | load frequency control for rural distributed generation |
| url | http://hdl.handle.net/20.500.11937/28198 |