A complete range of grid code compliant alternators and regulators
Over the last few years, distributed power generation has grown fast, especially in areas such as cogeneration, combined heat & power, biomass, biogas or waste-to-energy.
This new, decentralized approach to power generation has put new requirements on small-size alternators. They are now more and more expected to operate 24/7, with an ever increasing level of reliability and efficiency. These new requirements also include a solid capability of living within smart grids and to cope with all the constraints of mains paralleling.
At Nidec Leroy-Somer, we designed a complete offering to address these new challenges. Drawing from our long expertise and strong product lineup, we selected the best solution to fit power plants requirements.
Grid Code compliant alternators
Nidec Leroy-Somer offers a wide range of alternators that comply with Grid Code requirements. The LSAC and LSAH ranges for cogeneration applications are our main ranges that are compatible with the standards of many countries regarding grid code regulations. The LSA range also complies with all the main grid code regulations.
Grid Code compliant regulators
The digital regulations platforms D550 and D700 offer a Grid Code functionality, making them compatible with the standards of numerous countries rules for connecting production plants to the grid. This section lists all the functions that can be used to ensure energy is generated in compliance with the standards while guaranteeing the integrity of the different components of the power plant.
Nidec Leroy-Somer has a complete understanding of the requirements of each country concerning the production of electricity and connection to the national grid.
The grid code is a standard that differs from country to country and its purpose is to define the conditions that an installation must meet in order to be connected to an electrical grid. It specifies the required behaviour of a generator connected to the power grid during system disturbances.
The aim of Nidec Leroy-Somer is to identify and cover all the requirements of a given market in order to meet them and to carry out your projects successfully. If needed, we carry out extensive studies on the behaviour of generators during transients, including short circuit and/or grid voltage dips in order to comply with Grid Code requirements.
So that we can model how our alternator will fit into your installation, Nidec Leroy-Somer provides the following documents on request when creating an order :
- Electrical characteristics (reactance, time constants, etc)
- No-load curve
- IEEE exciter model (AC8B according to IEEE421)
- Model of auxiliary windings (AREP)
- AVR operating modes and settings
National grid codes supported
Germany
Germany
VDE-AR-N 4110:2018-11 -Technical requirements for the connection and operation of customer installations to the medium voltage network (TCR medium voltage).
VDE-AR-N 4105:2018-11 –Technical requirements for the connection to and parallel operation with low-voltage distribution networks.
European Union (EU)
Requirements for Grid (RfG) standard application form from 14 April 2016
UK
ENA EREC G99 standard application form from 27 April 2019ENA EREC G5 Issue 4 standard application form from March 2001Harmonic voltage distortion and the connection of non-linear and resonant plant and equipment to transmission systems and distribution networks in the United Kingdom
Italy
Italian CEI O-16 ed. 09-2014, integrated with variant V1, 12-2014 and Variant V2, 07-2016, chapter 8. 8. 5. 1
Italian CEI O-21 ed. 07-2016, chapter 8. 4. 4
Other grid codes supported please contact us
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It should be noted that the Grid Code is not intended to describe how the alternator and the regulator should be produced, but rather the regulations to be met by the utility in order to gain access to the market. The customer must therefore translate his requirements into technical specifications, since in the end it is the production facility that will be defined as compliant.