Detail of Q/GDW 666-2011

Introduction of Q/GDW 666-2011

Test technical specification for distributed resources connected to distribution network 1 Scope This standard specifies the technical specifications to be followed in the test on the interconnection interface of distributed resources connected to distribution network. This standard is applicable to distributed resources connected to distribution network at the voltage levels of 10kV and below in the form of synchronous generators, asynchronous generators and converters in the operating areas of State Grid Corporation of China. 2 Normative references The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 7261-2008 Basic testing method for relaying protection and security automatic equipment GB/T 12325 Power quality—Deviation of supply voltage GB/T 12326 Power quality—Voltage fluctuation and flicker GB/T 12706.2-2008 Power cables with extruded insulation and their accessories for rated voltages from 1kV (Um=1.2kV) up to 35kV (Um=40.5kV) —Part 2: Cables for rated voltages from 6kV(Um=7.2kV) up to 30kV(Um=36kV) GB/T 13422 Power semiconductor converters—Electrical test methods GB/T 14549 Quality of electric energy supply—Harmonics in public supply network GB/T 14598.3-2010 Electrical relays Part 5: Requirements and tests for insulation coordination for measuring relays and protection equipment GB/T 14598.9 Measuring relays and protection equipment—Part 22-3: Electrical disturbance tests—Radiated electromagnetic field immunity GB/T 14598.10 Electrical relays—Part 22-4: Electrical disturbance test for measuring relays and protection equipment—Electrical fast transient/burst immunity test GB/T 14598.13 Electrical relays—Part 22-1:Electrical disturbance tests for measuring relays and protection equipment - 1 MHz burst immunity tests GB/T 14598.14 Measuring relays and protection equipment—Part 22-2:Electrical disturbance tests—Electrostatic discharge tests GB/T 15543 Power quality—Three-phase voltage unbalance GB/T 16927 High voltage test techniques GB/T 17626.2 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test GB/T 17626.3 Electromagnetic compatibility—Testing and measurement techniques—Radiated, radio-frequency, electromagnetic field immunity test GB/T 17626.4 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burst immunity test GB/T 17626.5 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test GB/T 17626.6 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances induced by radio-frequency fields GB 50057 Design code for protection of structures against lightning GB 50150 Standard for hand-over test of electric equipment electric equipment installation engineering DL/T 448 Technical administrative code of electric energy metering DL/T 478-2010 General specification for relaying protection and security automatic equipment DL/T 620 Overvoltage protection and insulation coordination for AC electrical installations DL/T 621 Grounding for AC electrical installations DL 645 Multi-function watt-hour meter communication protocol DL/T 995 Testing regulations on protection and stability control equipment Q/GDW 354 Functional specification for smart electricity meter Q/GDW 480-2010 Technical rule for distributed resources connected to power grid Q/GDW 514 Function specification for remote terminal units / slave station of distribution automation 3 Terms and definitions For the purpose of this standard, the following terms and definitions apply. 3.1 interconnection interface interconnection interface of distributed resources connected to distribution network, which is a single device or a collection of multiple devices, including the interconnection parts of synchronous generators, asynchronous generators and converter, as well as system control, stability control, component-level and system-level protection, automatic communication, synchronization and metering devices 3.2 simulated distribution network test device for simulating the voltage, frequency and phase of distribution network 4 General technical principles 4.1 The tests referred to in this standard shall be carried out in accordance with safety specifications and test procedures, and corresponding preventive measures shall be taken. 4.2 The manufacturer of the equipment under test shall provide technical parameters and functional descriptions of the products. If the manufacturer of the equipment under test has special requirements, it shall provide the necessary external equipment for the test. 4.3 The test environment involved in this standard shall meet the test requirements for the equipment under test. When the environmental conditions do not meet the requirements, correction shall be made, and if the conditions are still not met after correction, the test shall be stopped. 4.4 All equipment of distributed resources system shall pass type test, routine test, field commissioning and obtain permission from local power grid enterprises before field test on interconnection interface. 4.5 The equipment under test shall be tested regularly according to its equipment performance.

Contents of Q/GDW 666-2011

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 General technical principles 5 General inspection 6 Technical requirements for test equipment 7 Type test 8 Routine test 9 Field test 10 Periodic tests Annex A (Normative) List of distributed resource interconnection interface test items