Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads
Abstract At present, high penetration of photovoltaic (PV) systems on low voltage (LV) distribution systems is increasing worldwide because of several favourable conditions, such as government policies, decreasing cost of PV technologies, and environmental awareness. However, varying sunlight and th...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-07-01
|
| Series: | IET Renewable Power Generation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rpg2.12144 |
| _version_ | 1818020734072520704 |
|---|---|
| author | Anuwat Chanhome Surachai Chaitusaney |
| author_facet | Anuwat Chanhome Surachai Chaitusaney |
| author_sort | Anuwat Chanhome |
| collection | DOAJ |
| description | Abstract At present, high penetration of photovoltaic (PV) systems on low voltage (LV) distribution systems is increasing worldwide because of several favourable conditions, such as government policies, decreasing cost of PV technologies, and environmental awareness. However, varying sunlight and three‐phase unbalanced load conditions can result in voltage violation, especially an overvoltage problem, and voltage unbalanced conditions that deteriorate the power quality. Therefore, disconnection of PV systems, especially on the downstream node, can occur due to the overvoltage protection of the PV system, which results in PV owners losing revenue from selling electricity. Moreover, some electrical appliances can be damaged from voltage unbalanced conditions. To support a high PV penetration and prevent these adverse impacts, this study applies a control strategy involving coordination between the Central Control Unit (CCU) and Local Control Functions (LCFs) of PV systems. The CCU applies the Adaptive Tabu Search (ATS) technique to search for the optimal LCF parameter setting of PV systems and adjusted this weekly. The optimization problem is the maximization of real power generation from all PV systems under varying (uncertain) sunlight and three‐phase unbalanced loads. MATLAB programming is used for the Newton–Raphson power flow simulation on a modified 19‐node distribution system. |
| first_indexed | 2024-04-14T08:08:38Z |
| format | Article |
| id | doaj.art-0053fa5d771a45e8884aca215270cf9e |
| institution | Directory Open Access Journal |
| issn | 1752-1416 1752-1424 |
| language | English |
| last_indexed | 2024-04-14T08:08:38Z |
| publishDate | 2021-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Renewable Power Generation |
| spelling | doaj.art-0053fa5d771a45e8884aca215270cf9e2022-12-22T02:04:37ZengWileyIET Renewable Power Generation1752-14161752-14242021-07-0115102168218410.1049/rpg2.12144Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loadsAnuwat Chanhome0Surachai Chaitusaney1Smart Grid Research Unit Department of Electrical Engineering Chulalongkorn University Bangkok ThailandSmart Grid Research Unit Department of Electrical Engineering Chulalongkorn University Bangkok ThailandAbstract At present, high penetration of photovoltaic (PV) systems on low voltage (LV) distribution systems is increasing worldwide because of several favourable conditions, such as government policies, decreasing cost of PV technologies, and environmental awareness. However, varying sunlight and three‐phase unbalanced load conditions can result in voltage violation, especially an overvoltage problem, and voltage unbalanced conditions that deteriorate the power quality. Therefore, disconnection of PV systems, especially on the downstream node, can occur due to the overvoltage protection of the PV system, which results in PV owners losing revenue from selling electricity. Moreover, some electrical appliances can be damaged from voltage unbalanced conditions. To support a high PV penetration and prevent these adverse impacts, this study applies a control strategy involving coordination between the Central Control Unit (CCU) and Local Control Functions (LCFs) of PV systems. The CCU applies the Adaptive Tabu Search (ATS) technique to search for the optimal LCF parameter setting of PV systems and adjusted this weekly. The optimization problem is the maximization of real power generation from all PV systems under varying (uncertain) sunlight and three‐phase unbalanced loads. MATLAB programming is used for the Newton–Raphson power flow simulation on a modified 19‐node distribution system.https://doi.org/10.1049/rpg2.12144Solar power stations and photovoltaic power systemsOptimisation techniquesControl of electric power systemsOptimisation techniquesDistributed power generationDistribution networks |
| spellingShingle | Anuwat Chanhome Surachai Chaitusaney Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads IET Renewable Power Generation Solar power stations and photovoltaic power systems Optimisation techniques Control of electric power systems Optimisation techniques Distributed power generation Distribution networks |
| title | Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads |
| title_full | Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads |
| title_fullStr | Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads |
| title_full_unstemmed | Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads |
| title_short | Coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three‐phase unbalanced loads |
| title_sort | coordination between the central control unit and local control function of a photovoltaic system under the uncertainties of sunlight and three phase unbalanced loads |
| topic | Solar power stations and photovoltaic power systems Optimisation techniques Control of electric power systems Optimisation techniques Distributed power generation Distribution networks |
| url | https://doi.org/10.1049/rpg2.12144 |
| work_keys_str_mv | AT anuwatchanhome coordinationbetweenthecentralcontrolunitandlocalcontrolfunctionofaphotovoltaicsystemundertheuncertaintiesofsunlightandthreephaseunbalancedloads AT surachaichaitusaney coordinationbetweenthecentralcontrolunitandlocalcontrolfunctionofaphotovoltaicsystemundertheuncertaintiesofsunlightandthreephaseunbalancedloads |