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Reference Number NIA_ENWL011
Title Enhanced Voltage Control
Status Completed
Energy Categories OTHER POWER and STORAGE TECHNOLOGIES(Electricity transmission and distribution) 100%;
Research Types Applied Research and Development 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Project Contact
No email address given
Electricity North West Limited
Award Type Network Innovation Allowance
Funding Source ENA Smarter Networks
Start Date 01 November 2015
End Date 01 November 2018
Duration 36 months
Total Grant Value £800,000
Industrial Sectors Power
Region North West
Programme Network Innovation Allowance
Investigators Principal Investigator Project Contact , Electricity North West Limited (100.000%)
Web Site
Objectives ; Devise appropriate technical solutions to meet functional requirements for CLASS. ; Trial technical solutions as necessary on the Electricity North West network. ; Produce relevant documentation to allow future installations. ; Devise new settings for generator connections. ; Application of new settings at a number of primary substations on the Electricity North West network. ; Develop a functional specification for a technical solution to enable the offering of voltage managed connection. 1. Successful trial of the business as usual technical solution for CLASS. 2. All relevant documents produced to allow purchase, installation and commissioning of the technical solution. 3. Settings devised for generator connections. 4. Successful trial of new settings for generator connections on a number of primary substations. 5. New voltage control policy incorporating the new settings. 6. New functional specification for a technical solution to enable the offering of voltage managed connection.
Abstract The LCNF Second Tier project, CLASS, has now reached a conclusion and has proved there is a relationship between voltage and demand which can be exploited to reduce peak demand and assist with balancing generation. Although CLASS provided a fit for purpose technical solution it is recognised that other solutions more appropriate for business as usual rollout and the services required could be available. Part A of this project will further develop the technical solutions to meet the required CLASS functionality. These technical solutions could include local and / or centralised solutions. Separately, the government targets for reduction in CO2 emissions and the use of renewable energy has led to a significant increase in large scale generation connected to the 11kV and 33kV distribution networks. This increase in generation has resulted in difficulties controlling the voltages supplied to customers. Voltage control is normally carried out using on-load tapchangers fitted to 33/11kV transformers and fixed tapchangers on distribution transformers and this arrangement has proved sufficient for the passive networks operated by DNOs for many years. The connection of generation can lead to extreme conditions such as maximum demand, minimum generation which results in low volts and minimum demand, maximum generation which results in high volts. To add to the complexity each of these conditions could occur simultaneously on different feeders from the same transformer. Part B of this project will devise and apply new settings which can cater for this increase in generation. Part C of this project will investigate the technical feasibility of a solution to offer new generators a "voltage managed" connection which will help to solve the voltage issues described above. The project consists of 3 parts. Part A - Alternate Technical Solution for BaU Deployment of CLASS This part of the project will investigate the different possible solutions to deliver the functional requirements requested by a separately developed commercial framework. The preferred solution will be trialled at two sites on the Electricity North West network to perfect the installation requirements. The output will be a suite of documents to allow the purchase, installation and commissioning of the technical solution. Part B - Advanced AVC settings for Generation This part of the project will review and amend Electricity North West’s voltage control policy to devise new settings for generator connections. These new settings will investigate the practicalities of both local and centralised application and the use of functions such as Load Drop Compensation. These new settings will also need to be aligned with the CLASS functionalities as defined in Part A. The new settings will be trialled at a number of primary substations on the Electricity North West network. To confirm the correct operation of the new settings measurements will be taken on the network close to customers to ensure there is no adverse impact on the voltage. Part C - Technical Solution for Voltage Managed Connections This part of the project will investigate the technologies required to enable a Network Operator to offer a new generator a voltage managed connection. The output of this part will be a functional specification for the technical solution.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above
Publications (none)
Final Report (none)
Added to Database 14/08/18