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GB/T 19964-2012 English PDF (GBT19964-2012)
GB/T 19964-2012 English PDF (GBT19964-2012)
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GB/T 19964-2012: Technical requirements for connecting photovoltaic power station to power system
GB/T 19964-2012
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.160
F 12
Replacing GB/Z 19964-2005
Technical requirements for connecting photovoltaic
power station to power system
ISSUED ON. DECEMBER 31, 2012
IMPLEMENTED ON. JUNE 1, 2013
Issued by. General Administration of Quality Supervision, Detection and
Quarantine;
Standardization Administration Committee
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Active power ... 6
5 Power prediction ... 7
6 Reactive capacity ... 7
7 Voltage control ... 9
8 Low voltage ride through ... 10
9 Operation adaptability ... 11
10 Power quality ... 12
11 Simulation model and parameters ... 13
12 Secondary system ... 13
13 Interconnection detection ... 16
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/Z 19964-2005 Technical rule for connecting PV
power station to electric power systems.
This Standard was proposed by and shall be under the jurisdiction of China
Electricity Council.
Drafting organizations of this Standard. China Electric Power Research Institute,
China Institute of Electrical Engineering, State Grid Electric Power Research
Institute.
Main drafters of this Standard. Wang Weisheng, Xu Honghua, Liu Chun, Shi
Wenhui, He Guoqing, Lv Hongshui, Zhu Weigang, Chi Yongning, Chen Mozi, Li
Yan, Zhu Lingzhi, Zhang Junjun, Feng Wei, Liu Limin, Wang Bo.
This Standard replaces the following previous standard.
- GB/Z 19964-2005.
Technical requirements for connecting photovoltaic
power station to power system
1 Scope
This Standard specifies the technical requirements for connecting photovoltaic
power station to power system.
This Standard is applicable to new, rebuilt and expanded photovoltaic power
stations which are connected via 35 kV-and-above voltage grid, 10 kV voltage
level and public grid.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 12325 Power quality - Deviation of supply voltage
GB/T 12326 Power quality - Voltage fluctuation and flicker
GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply
Network
GB/T 15543 Power quality - Three-phase voltage
GB/T 19862 General requirements for monitoring equipment of power
quality
GB/T 24337 Power quality - Interharmonics in public supply network
DL/T 448 Technical administrative code of electric energy metering
DL/T 1040 The grid operation code
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 photovoltaic (PV) power station
3.10 anti-islanding
Prevention of unplanned islanding phenomenon.
4 Active power
4.1 General requirements
4.1.1 PV power station shall have ability to participate in frequency modulation
and peaking of power system in accordance with relevant provisions of DL/T
1040.
4.1.2 PV power station shall be equipped with active power control system,
ability to continuously and smoothly adjust active power and ability to participate
in active power control of system.
4.1.3 PV power station active power control system shall be able to receive
and automate the control orders of active power and active power change
released by grid scheduling mechanism.
4.2 Active power change under normal operation
4.2.1 During the process of PV power station interconnection, normal
shutdown and growth of solar irradiance, PV power station active power change
rate shall meet requirements for power system’s safe and stable operation. Its
limits shall be determined by grid scheduling mechanism according to the
frequency adjustment characteristics of power system accessed.
4.2.2 PV power station active power change rate shall not exceed 10%
capacity / min. PV power station active power change rate is allowed to exceed
the limits caused by reduction of solar irradiance.
4.3 Emergency control
4.3.1 In case of power system accident or emergency, PV power station shall
be operated according to the following requirements.
a) In power system accident or a special operating mode, it shall reduce
PV power station active power in accordance with requirements of grid
scheduling mechanism;
b) When power system frequency is greater than 50.2 Hz, it shall reduce
PV power station active power according to instructions of grid
scheduling mechanism OR cut off the whole PV power station if it is
serious;
c) If PV power station’s operation endangers the safety and stability of
power system, the grid scheduling mechanism shall temporarily cut off
PV power station according to relevant provisions.
4.3.2 After accident and recovery of power system, PV power station shall be
paralleled in according to scheduling instructions.
5 Power prediction
5.1 General requirements
PV power station with capacity of 10 MW and greater shall be equipped with
photovoltaic power prediction system. The system shall have 0h ~ 72h short-
term prediction of photovoltaic power generation and 15 min ~ 4h ultra-short-
term photovoltaic power prediction.
5.2 Report of prediction curve
5.2.1 PV power station automatically report in roll to grid scheduling
mechanism in every 15 min about PV power station generation power
prediction curve of future 15 min ~ 4h. The time resolution of the predicted value
is 15 min.
5.2.2 PV power station reports PV power station generation power prediction
curve of 0h~ 24h of next day according to grid scheduling mechanism specified
time every day. The time resolution of the predicted value is 15 min.
5.3 Prediction accuracy
Monthly average absolute error of short term prediction of PV power station
generation time (excluding output controlled period) shall be less than 0.15.
Monthly passing-rate shall be greater than 80%, The monthly average absolute
error of the fourth hour of ultra-short-term prediction shall be less than 0.10.
The monthly passing-rate shall be greater than 85%.
6 Reactive capacity
6.1 Reactive power supply
6.1.1 Reactive power supply of PV power station includes PV interconnection
inverter and reactive power compensation device of PV power station.
6.1.2 Interconnection inverter of PV power station shall make power factor
under rated active power be dynamically adjustable within the range of
advance-0.95 ~ hysteresis-0.95, within the rectangle as shown in Figure 1.
750 kV), the reactive capacity configuration shall comply with the following
requirements.
a) Capacitive reactive capacity can compensate the sum of inductive
reactive power of site collection line, main transformer when PV power
station is in full output and all inductive reactive power of PV power
station transmission line;
b) Inductive reactive capacity can compensate the sum of capacitive
charge reactive power of PV power station and all charge reactive
power of PV power station transmission line.
6.2.5 Reactive device type and capacity range of PV power station shall
combine with the actual access of PV power station and be determined by
reactive voltage thematic studies of PV power station’s access power system.
7 Voltage control
7.1 Gen...
Get QUOTATION in 1-minute: Click GB/T 19964-2012
Historical versions: GB/T 19964-2012
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GB/T 19964-2012: Technical requirements for connecting photovoltaic power station to power system
GB/T 19964-2012
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 27.160
F 12
Replacing GB/Z 19964-2005
Technical requirements for connecting photovoltaic
power station to power system
ISSUED ON. DECEMBER 31, 2012
IMPLEMENTED ON. JUNE 1, 2013
Issued by. General Administration of Quality Supervision, Detection and
Quarantine;
Standardization Administration Committee
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Active power ... 6
5 Power prediction ... 7
6 Reactive capacity ... 7
7 Voltage control ... 9
8 Low voltage ride through ... 10
9 Operation adaptability ... 11
10 Power quality ... 12
11 Simulation model and parameters ... 13
12 Secondary system ... 13
13 Interconnection detection ... 16
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/Z 19964-2005 Technical rule for connecting PV
power station to electric power systems.
This Standard was proposed by and shall be under the jurisdiction of China
Electricity Council.
Drafting organizations of this Standard. China Electric Power Research Institute,
China Institute of Electrical Engineering, State Grid Electric Power Research
Institute.
Main drafters of this Standard. Wang Weisheng, Xu Honghua, Liu Chun, Shi
Wenhui, He Guoqing, Lv Hongshui, Zhu Weigang, Chi Yongning, Chen Mozi, Li
Yan, Zhu Lingzhi, Zhang Junjun, Feng Wei, Liu Limin, Wang Bo.
This Standard replaces the following previous standard.
- GB/Z 19964-2005.
Technical requirements for connecting photovoltaic
power station to power system
1 Scope
This Standard specifies the technical requirements for connecting photovoltaic
power station to power system.
This Standard is applicable to new, rebuilt and expanded photovoltaic power
stations which are connected via 35 kV-and-above voltage grid, 10 kV voltage
level and public grid.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 12325 Power quality - Deviation of supply voltage
GB/T 12326 Power quality - Voltage fluctuation and flicker
GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply
Network
GB/T 15543 Power quality - Three-phase voltage
GB/T 19862 General requirements for monitoring equipment of power
quality
GB/T 24337 Power quality - Interharmonics in public supply network
DL/T 448 Technical administrative code of electric energy metering
DL/T 1040 The grid operation code
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 photovoltaic (PV) power station
3.10 anti-islanding
Prevention of unplanned islanding phenomenon.
4 Active power
4.1 General requirements
4.1.1 PV power station shall have ability to participate in frequency modulation
and peaking of power system in accordance with relevant provisions of DL/T
1040.
4.1.2 PV power station shall be equipped with active power control system,
ability to continuously and smoothly adjust active power and ability to participate
in active power control of system.
4.1.3 PV power station active power control system shall be able to receive
and automate the control orders of active power and active power change
released by grid scheduling mechanism.
4.2 Active power change under normal operation
4.2.1 During the process of PV power station interconnection, normal
shutdown and growth of solar irradiance, PV power station active power change
rate shall meet requirements for power system’s safe and stable operation. Its
limits shall be determined by grid scheduling mechanism according to the
frequency adjustment characteristics of power system accessed.
4.2.2 PV power station active power change rate shall not exceed 10%
capacity / min. PV power station active power change rate is allowed to exceed
the limits caused by reduction of solar irradiance.
4.3 Emergency control
4.3.1 In case of power system accident or emergency, PV power station shall
be operated according to the following requirements.
a) In power system accident or a special operating mode, it shall reduce
PV power station active power in accordance with requirements of grid
scheduling mechanism;
b) When power system frequency is greater than 50.2 Hz, it shall reduce
PV power station active power according to instructions of grid
scheduling mechanism OR cut off the whole PV power station if it is
serious;
c) If PV power station’s operation endangers the safety and stability of
power system, the grid scheduling mechanism shall temporarily cut off
PV power station according to relevant provisions.
4.3.2 After accident and recovery of power system, PV power station shall be
paralleled in according to scheduling instructions.
5 Power prediction
5.1 General requirements
PV power station with capacity of 10 MW and greater shall be equipped with
photovoltaic power prediction system. The system shall have 0h ~ 72h short-
term prediction of photovoltaic power generation and 15 min ~ 4h ultra-short-
term photovoltaic power prediction.
5.2 Report of prediction curve
5.2.1 PV power station automatically report in roll to grid scheduling
mechanism in every 15 min about PV power station generation power
prediction curve of future 15 min ~ 4h. The time resolution of the predicted value
is 15 min.
5.2.2 PV power station reports PV power station generation power prediction
curve of 0h~ 24h of next day according to grid scheduling mechanism specified
time every day. The time resolution of the predicted value is 15 min.
5.3 Prediction accuracy
Monthly average absolute error of short term prediction of PV power station
generation time (excluding output controlled period) shall be less than 0.15.
Monthly passing-rate shall be greater than 80%, The monthly average absolute
error of the fourth hour of ultra-short-term prediction shall be less than 0.10.
The monthly passing-rate shall be greater than 85%.
6 Reactive capacity
6.1 Reactive power supply
6.1.1 Reactive power supply of PV power station includes PV interconnection
inverter and reactive power compensation device of PV power station.
6.1.2 Interconnection inverter of PV power station shall make power factor
under rated active power be dynamically adjustable within the range of
advance-0.95 ~ hysteresis-0.95, within the rectangle as shown in Figure 1.
750 kV), the reactive capacity configuration shall comply with the following
requirements.
a) Capacitive reactive capacity can compensate the sum of inductive
reactive power of site collection line, main transformer when PV power
station is in full output and all inductive reactive power of PV power
station transmission line;
b) Inductive reactive capacity can compensate the sum of capacitive
charge reactive power of PV power station and all charge reactive
power of PV power station transmission line.
6.2.5 Reactive device type and capacity range of PV power station shall
combine with the actual access of PV power station and be determined by
reactive voltage thematic studies of PV power station’s access power system.
7 Voltage control
7.1 Gen...
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