Twin1986
Electrical
- Jul 28, 2013
- 3
Good day
The shortfall of generation capacity and high penetration of renewables can lead to a change in the operation of the transmission network. One of the practices of managing a constrained transmission network is the introduction of capacitor banks for voltage and reactive power compensation. Renewable energy technology uses power electronics and as a result it has the potential to generate harmonics or increase existing levels of harmonics.
I would like to know the following:
1. What are the problems experienced on the network as a result of the shortfall in generation capacity?
2. What are network approaches to managing the capacity shortfall?
3. What is the operating practice at systems operation and transmission to support the network?
4. Are there measurement and management practices/guidelines for harmonics on the transmission and distribution networks?
5. How do renewable energy sources impact harmonics? Is there regulation & operational measurement practices that cater for harmonics generated by renewables?
On High Voltage and Extra High Voltage networks, Capacitor Voltage Transformers are used to measure harmonics. Commercial devices like Power Quality Current Sensors and Harmonics Monitoring Terminals have been developed to improve the measurement capabilities of Capacitive Voltage Transformers.
I would like to know the following:
1. How can harmonics be measured and managed to
a) meet local and international regulations and
b) not interfere with network operations
2. How are harmonics measured and managed at transmission level?
Your input and assistance will be highly appreciated.
Kind regards
Thabiso Kgosiemang
The shortfall of generation capacity and high penetration of renewables can lead to a change in the operation of the transmission network. One of the practices of managing a constrained transmission network is the introduction of capacitor banks for voltage and reactive power compensation. Renewable energy technology uses power electronics and as a result it has the potential to generate harmonics or increase existing levels of harmonics.
I would like to know the following:
1. What are the problems experienced on the network as a result of the shortfall in generation capacity?
2. What are network approaches to managing the capacity shortfall?
3. What is the operating practice at systems operation and transmission to support the network?
4. Are there measurement and management practices/guidelines for harmonics on the transmission and distribution networks?
5. How do renewable energy sources impact harmonics? Is there regulation & operational measurement practices that cater for harmonics generated by renewables?
On High Voltage and Extra High Voltage networks, Capacitor Voltage Transformers are used to measure harmonics. Commercial devices like Power Quality Current Sensors and Harmonics Monitoring Terminals have been developed to improve the measurement capabilities of Capacitive Voltage Transformers.
I would like to know the following:
1. How can harmonics be measured and managed to
a) meet local and international regulations and
b) not interfere with network operations
2. How are harmonics measured and managed at transmission level?
Your input and assistance will be highly appreciated.
Kind regards
Thabiso Kgosiemang
